Two tremors of 4.4 and 4.5 magnitude hit Santorini within a minute – Lekkas: "The risk of a 6.0 magnitude quake is decreasing" - Live updates

Synolakis: A Tide Gauge Will Be Installed in Santorini – What He Says About the Possibility of a Major Earthquake

A tide gauge will be installed next week in Santorini by Professor of Natural Disasters, Kostas Synolakis, following the Prime Minister’s visit to the island. Mr. Synolakis emphasized that tide gauges contribute to “targeted warnings” and overall safety, adding that such a device should have been in place 20–30 years ago.

Regarding the possibility of a magnitude 6 earthquake, he noted that he cannot provide precise numbers, as seismic predictions are continuously revised. However, he clarified that “this does not mean something like the 1956 earthquake will happen,” referring to the 7.5-magnitude Amorgos earthquake.

EKPA: Seismic Activity Decreasing Between Santorini and Amorgos – Over 8,900 Tremors Recorded

More than 8,900 earthquakes have been recorded in the Santorini–Amorgos area from January 26 to February 4, according to an urgent report issued by the National and Kapodistrian University of Athens (EKPA).

The report highlights that while seismic activity remains significant, with many tremors reaching magnitude 4, the overall frequency of earthquakes is showing a relative decline. This trend is observed using both traditional methods and artificial intelligence-based analysis.

The SEAJETS group will cover the housing expenses of the medical staff in Santorini.

During today’s meeting with Prime Minister Kyriakos Mitsotakis in Santorini, attended by state and local authorities, and in light of the recent seismic activity in the area, Marios Iliopoulos, the head of strategic planning and development at SEAJETS, announced that the group will cover the housing expenses for the island’s medical staff for the current period and for the remainder of the year.

Another seismic tremor above 4 on the Richter scale has occurred in the broader area that has been affected by seismic activity in Santorini in recent days.

According to the revised data from the Geodynamic Institute, the focal depth is 15.1 kilometers, with the epicenter located 21 kilometers south-southwest of Amorgos. The earthquake took place at 17:16 on Friday.

The Mayors of the Cyclades Request Instructions from the Relevant Ministries Regarding School Operations Until February 14

In a letter to the Minister of Climate Crisis and Civil Protection and the Minister of Education, Religious Affairs, and Sports, the Mayors of the Cyclades requested instructions for the operation of schools until February 14, as reported by tinostoday.gr.

“Dear Ministers,
As you are aware, schools remain closed until Friday, 07/02/2025, on Thira, Anafi, Ios, and Amorgos, as recommended by the two Committees (the Permanent Scientific Committee for Seismic Risk Assessment and Reduction of Seismic Hazard and the Permanent Scientific Committee for Monitoring the Hellenic Volcanic Arc of OASP).

By decision of the Mayors of the islands of the Cyclades region, almost all schools were closed during the same period due to the strong and noticeable tremors caused by the ongoing seismic activity.

Considering that: a) the authority of the Mayors cannot exceed the limit of three (3) days, b) the seismic activity continues and has intensified, combined with the adverse weather conditions affecting the Cyclades islands in recent days, and c) both the educational community and parents’ associations are concerned, we kindly request that you inform us whether we are allowed to make a decision to further suspend the operation of schools in our region, at least for the week of 10-14/2/2025, with special attention to the students in the 3rd grade of Lyceum who will soon take national exams,” the announcement states.

Papazachos: Even a Stronger Tremor Would Now Have Relatively Limited Impact

Professor of Geophysics at Aristotle University of Thessaloniki, Konstantinos Papazachos, provided an update on the geological phenomena in the Santorini region at the conclusion of a meeting between Prime Minister Kyriakos Mitsotakis and local authorities.

According to Mr. Papazachos, the seismic sequence has continued over the past four days with the same intensity. However, experts are now “more optimistic” as the specific section of the fault, which has become clearer due to denser monitoring, appears to be “filling in.” This means the likelihood of a stronger tremor is steadily decreasing, making such a scenario increasingly improbable.

He also highlighted that new seismographs are being installed in Nea Kameni, with another device set to be placed in Gavrilos in the afternoon and one more in Thirasia the following day.

“We are dealing with three key factors. First, regarding the sequence itself: despite appearing to subside at times, it continues at the same intensity. The sequence has a unique mechanism driven by underground fluids, causing bursts of clustered seismic activity. For instance, two nights ago, all tremors occurred between 3:00 and 5:30 a.m., making it difficult for those present to sleep. Last night, no such activity occurred, while this morning, another minor cluster was recorded.

This is how things are likely to unfold in the coming period. However, we are growing increasingly optimistic as the fault segment in question is showing more defined characteristics, reducing the probability of a stronger earthquake,” Papazachos stated.

He further emphasized that, given the current epicenter and the fault’s characteristics, even a more powerful tremor would now have relatively limited consequences for the island. “The scenarios we have analyzed do not indicate any significant risk,” he reassured, while also cautioning that “nature is unpredictable, and surprises cannot be entirely ruled out.”

“Our approach is based on data, not assumptions. In science, we do not rely on intuition—we rely on evidence. I want to assure you that we are doing everything possible,” he underlined, referring to the newly installed seismographs.

“We, along with colleagues from various research centers, are working to improve monitoring in order to provide more reliable information. I personally believe that in the coming days, we will continue to operate under relatively conservative scenarios. That being said, our expert committee consists of multiple specialists, and as Aristotle’s principle of moderation suggests, the best approach is often a balanced one. That is why national scientific committees, as you correctly pointed out, issue measured and well-founded assessments. I fully agree that the public should not be influenced by rumors,” he stressed.

In closing, he reassured residents that “nothing dramatic has changed. Every day, we seem to be moving slightly in a positive direction, but the situation will not resolve overnight. Locals will need to be patient, possibly for the next week as well. Hopefully, conditions will continue to improve.”

Funding of 3 million euros for an escape gate in southern Santorini announced by Mitsotakis

During a meeting with Santorini’s local authorities, the Prime Minister made a special mention of the infrastructure issues that need to be addressed both in the short and long term. He announced an initial funding of 3 million euros—”we will proceed through the Ministry of National Defense for faster implementation”—to construct an escape gate in the southern part of the island, ensuring preparedness for any scenario.

Mitsotakis’ visit to Santorini concludes, Prime Minister prepares to depart the island

Mitsotakis: Our Duty Is to Protect Santorini’s Reputation

During a meeting with local authorities in Santorini, the Prime Minister stated, “I am here to make it absolutely clear that the state stands by you. A serious government must prepare for the worst-case scenario while hoping for the best. Santorini is an iconic destination, and it is our duty to protect its reputation. There needs to be a balance—we must be present and proactive, rather than allowing doomsday scenarios to spread.”

As reported by ERT, the Prime Minister announced a meeting next week, including the Ministry of Labor, to discuss measures to support businesses. He also emphasized infrastructure issues, particularly those related to preventing landslides on the slopes of the Caldera.

Earthquake now: 4.1 Richter with epicenter north of Anafi

The Prime Minister reiterated his recommendation for calm and wished that the island would return to normalcy soon.
According to reports, Kyriakos Mitsotakis told the authorities of Santorini that he would put them in contact with the relevant ministries to discuss support measures.

He also acknowledged that there are infrastructure issues, such as the problem in the Caldera due to landslides, and stated that projects would be undertaken, such as the new port in Monolithos.

“Our priority is the safety of the residents and tourists,” the Prime Minister reportedly said.

Kyriakos Mitsotakis congratulated firefighters and EMS responders for their presence on Santorini.

The Prime Minister visited the mobile operational center of the Fire Department.

Photographic snapshots from the Prime Minister’s visit to Santorini

The arrival of Prime Minister Kyriakos Mitsotakis in Santorini is expected in a short while.

Accompanying him will be the Minister of Climate Crisis and Civil Protection, Vasilis Kikilias.

The recordings on the seismograph in Anydros during the night

New 4.4-Magnitude Earthquake Hits Santorini

According to the Geodynamic Institute’s automatic solution, the epicenter was located 22 km south of Amorgos, with a focal depth of 10 km. The tremor occurred at 20:16.

Seismic Swarm in Santorini, Says Thanasis Ganas

Thanasis Ganas, Director of Research at the Geodynamic Institute, believes the ongoing seismic activity in Santorini is likely part of a seismic swarm rather than a precursor to a major earthquake.

“I think we are close to de-escalation. The swarm is still active. In my opinion, it is more likely that we will continue seeing magnitude 4 and 5 earthquakes rather than a larger event, which remains a less probable scenario. Additionally, there is no movement toward Amorgos,” Ganas stated in an interview with OPEN TV.

“If we sum up the released energy over the past few days, it equates to a magnitude 6 earthquake. We’ve recorded 989 tremors from Friday until today, and their combined energy corresponds to a 6.0-magnitude quake.

Lekkas: The 5.2-Magnitude Quake Cannot Be Considered the Main Earthquake – Tectonic Forces Are Gradually Releasing

The president of the Earthquake Planning and Protection Organization (OASP), Efthymios Lekkas, spoke to Mega from Santorini, where he is currently located, regarding the 5.2-magnitude earthquake that struck the island. He emphasized that this tremor cannot be considered the main event.

“The 5.2-magnitude earthquake cannot be classified as the main one because the difference in magnitude is too small compared to other quakes in the sequence. However, this is a positive development because it allows more energy to be released within the ongoing seismic activity, which has been particularly intense since it began on Saturday,” Lekkas stated.

Schools Closed in Syros, Tinos, Andros, and Mykonos

Schools in Syros, Tinos, Andros, and Mykonos will remain closed on Friday, February 7, following a joint decision by local authorities.

“Due to the ongoing and intense seismic activity recorded in the Anydro sea area between Santorini and Amorgos, the mayors of Syros, Tinos, Andros, and Mykonos have collectively decided, in a spirit of responsibility and caution, to extend the closure of schools until Friday, February 7, 2025. This decision is based on a careful assessment of the latest seismic data and in accordance with the Civil Protection guidelines,” the official statement reads.

The announcement clarifies that the closure is not due to concerns about the structural integrity of school buildings but is instead a preventive measure aimed at protecting students and avoiding overcrowding in case of a stronger earthquake. The decision follows yesterday’s 5.2-magnitude quake southwest of Amorgos.

Synolakis on Santorini: ‘We Haven’t Seen the End of the Volcano Yet – Warning Signs Are Flashing’

Professor of Natural Disasters Kostas Synolakis discussed the seismic activity around Santorini and the potential tsunami risk during an appearance on Mega’s Live News.

Having participated in yesterday’s emergency meeting chaired by the Prime Minister at the Ministry of Climate Crisis and Civil Protection, Synolakis outlined three possible scenarios for the region’s seismic activity:

The seismic swarm will eventually subside, similar to what happened in 2011.
The ongoing tremors may trigger a larger earthquake.
There could be a minor volcanic eruption at either Santorini’s volcano or the Kolumbo submarine volcano.

“We are not done with the volcano yet – it is sending us warning signals,” Synolakis cautioned.

Santorini Residents Place Large Sandbags Across from Monolithos Beach

Santorini residents are taking protective measures amid ongoing earthquakes, placing large sandbags across from Monolithos Beach, where an electric power company is located. The move aims to safeguard the facility against a potential tsunami.

Not even earthquakes can stop real estate in Santorini’s Caldera – 150 sq.m. ruin for sale at €900,000

The real estate market in Santorini, particularly in the famous Caldera, remains at high levels despite the challenges posed by seismic activity and the skyrocketing construction costs.

A striking example is a property in Oia, which once operated as a restaurant under the name “Kolonaki” and is now on the market for €900,000. However, its current dilapidated state is far from resembling a restaurant with a view of the Caldera—instead, it looks more like a ruin or shack than a functional dining space.

National and Kapodistrian University of Athens (EKPA): 7,700 Earthquakes in Nine Days Between Santorini and Amorgos

More than 7,700 earthquakes have been recorded in the Santorini-Amorgos zone between January 26 and February 4, according to an urgent announcement from the National and Kapodistrian University of Athens (EKPA).

The distribution of earthquake epicenters on February 4 was similar to that of February 3, with the majority of tremors occurring near Anydros.

The report warns that beyond the seismic risk, the Santorini region in particular faces an increased likelihood of secondary geological hazards, such as landslides.

Seismic Activity Map

The size of the circles corresponds to the magnitude of each earthquake (legend in the upper right corner).
Earthquakes of magnitude 4.5 or higher are marked with a star.
Color variations indicate the focal depth, as shown in the color scale on the right

“We Won’t Leave, We Won’t Abandon the Animals,” Say Animal Shelter Workers in Santorini

Amid continuous seismic tremors and a mass exodus of residents and tourists from the island, animal shelter workers in Santorini are fighting their own battle to protect stray and abandoned animals.

According to shelter volunteers, cases of animal abandonment have already been observed, as many residents flee to Athens. They urge people not to leave behind their pets, particularly cats and dogs, and call for public support in adopting displaced animals.

“Our shelter houses over 70 stray dogs, and we are working to find them permanent homes. We also care for more than 32 equines—retired horses, donkeys, and mules. Mainly donkeys and mules. We even have farm animals, such as pigs, goats, and numerous poultry, including chickens, roosters, and ducks,” said Christina Kaloudi from the Santorini Animal Welfare Association (SAWA).

The Municipality of Thira declared a state of emergency

The Municipality of Thira has been declared in a state of emergency by the decision of the General Secretariat for Civil Protection.

“By decision of the General Secretariat for Civil Protection, the Municipality of Thira is declaring a state of emergency to address the urgent needs and manage the consequences arising from the seismic activity that has been occurring recently in the above area. This declaration will be in effect from February 1st and will last for one month, until March 1st,” the statement says.

Empty streets again today in Santorini

New earthquake of 4 Richter A new seismic tremor of 4 Richter occurred at 13:30, with its epicenter 22 km southwest of Arkessini, Amorgos

Kostas Papazachos: The 6.0 Richter Scenario Is Still on the Table

“The truth is, I’m optimistic. But as you understand, this isn’t just a scientific issue—it’s also a human, social, and psychological one. The scenario of a 6.0-magnitude earthquake cannot be ruled out. Initially, there were suspicions about longer fault lengths, which could have produced quakes in the 6.0 to 6.5 range. Those were the more concerning scenarios, as they would have had significantly worse consequences. A 6.5-magnitude earthquake releases multiple times the energy of a 6.0, even though they might seem comparable. So, no—I don’t think we can dismiss the possibility of a 6.0 at all.”

“It’s well known that earthquakes can cause an increase in hydrothermal activity at volcanoes. Milos, for example, was abandoned by its inhabitants in the 4th century due to intense phenomena of this kind occurring on the island. In many cases, when earthquakes strike, volcanoes show increased activity in their hydrothermal fields. But that’s one thing—an eruption is something entirely different. So, no, there is no scenario where an earthquake triggers a volcanic eruption.

Therefore, if you’ll allow me, let’s put aside these Hollywood-style doomsday scenarios about a massive earthquake. We’ve had plenty of quakes between 4.0 and 5.0, and we’re likely to continue seeing more of the same in the coming period.”

The Two Scenarios Agreed Upon by the Seismic and Volcanic Risk Committees

The president of the Earthquake Planning and Protection Organization (OASP), Efthymios Lekkas, spoke about the two scenarios that scientists from the seismic and volcanic risk committees are converging on.

As he stated on SKAI, “Either we will continue experiencing similar tremors for several days, or we will have a stronger earthquake.”

Mr. Lekkas also explained that “whatever energy remains to be released will come from a section south of the Anydros fault that has not yet ruptured.”

He further noted that “during the first committee meeting, the strongest earthquake we expected, albeit with a very low probability, was 6.2 on the Richter scale, but in the second meeting, that estimate was revised to a maximum of 6.0.”

Meanwhile, the director of research at the Geodynamic Institute, Athanasios Ganas, told Action24 that “the 5.2-magnitude earthquake on Wednesday night injected new energy into the fault,” estimating that the seismic activity could continue for another one to two weeks.

A 4.5 magnitude earthquake with an epicenter in the sea area off the coast of Amorgos.

“The seismic activity in Santorini continues at a particularly intense pace,” emphasized Professor of Seismology and Natural Disasters Efthymios Lekkas on SKAI radio.

He noted that the responsible authorities are prepared for all scenarios, even the extreme one that talks about a 6-magnitude earthquake.

“The extreme scenario has very small chances and may cause damage to old, poorly maintained houses and possibly landslides in the Caldera area,” Mr. Lekkas said, updating that the scientific committees will meet on Saturday morning to propose to the government the measures that will take effect from the following week.

“There are 3 scenarios at the moment. The first is for us to stay at these magnitudes for a few more days or weeks. The second is for us to have a larger earthquake of around 5.5 magnitude, which would relieve the situation and not cause any problems on the island. The third and extreme scenario is for an earthquake close to 6 magnitudes. In that case, there might be damage to old, poorly maintained houses and possibly landslides in the Caldera area.”

Gerasimos Papadopoulos: The 5.2 magnitude confirms that we are in a pre-seismic sequence.

4.5-Magnitude Earthquake off the Coast of Anafi

A new strong earthquake measuring 4.5 on the Richter scale was recorded at 07:51, with its epicenter in the sea area north-northeast of Anafi.

Seismic Activity in the Past Hours

Seismic activity continued through the night from Wednesday to Thursday in the sea area between Amorgos and Santorini.

According to data released by the Geodynamic Institute of the National Observatory of Athens, six additional “minor” tremors were recorded (4.4, 4.3, 4.2, 4.4, 4.5, and 4.2 on the Richter scale) between 04:00 and 05:30. Specifically, they occurred in reverse chronological order at 05:23, 04:48, 04:45, 04:27, 04:24, and 04:02 in the sea area between Amorgos and Santorini.

Additionally, seismographs detected a “minor” earthquake measuring 4.3 on the Richter scale in the sea area west-southwest of Anafi.

Earlier, three “minor” tremors—two of magnitude 4.1 and one of magnitude 4.0—were recorded at 01:16, 00:59, and 00:57, according to data from the Geodynamic Institute.

On Wednesday night at 21:09, the strongest tremor recorded so far in this ongoing unusual seismic sequence occurred in the sea area south of Amorgos, measuring 5.2 on the Richter scale, again according to the Geodynamic Institute. Seismologists noted earlier this week that, as of now, no earthquake has been identified as the main event.

According to reports, the nighttime earthquakes also caused disturbance on other islands, such as Mykonos, Ios, and Folegandros.

The earthquakes, which exceeded 4.0 Richter in magnitude and lasted for a significant duration, were strongly felt, forcing many to jump out of their beds in terror.

Schools in Syros Also Closed on Thursday

The Municipality of Syros – Ermoupolis has decided to suspend the operation of primary and secondary schools, as well as kindergartens, on Thursday, February 6, 2025, due to seismic activity between Thira and Amorgos.

February 5, 2025 – 22:09

Papazachos: The Worst-Case Scenarios Have Passed

Professor of Geophysics and Seismology Kostas Papazachos provided a slightly more optimistic assessment of the seismic activity in Santorini compared to previous days.

“We are not yet in a position to fully reassure people that the worst is over. However, today we have a clearer picture of where the earthquakes are occurring. It seems that the affected area is smaller,” he stated on Action 24.

Schools Closed on Thursday and Friday in Naxos

Local authorities have decided to suspend the operation of primary and secondary schools in the Municipality of Naxos and Small Cyclades on Thursday, February 6, and Friday, February 7, due to ongoing seismic activity in Santorini.

It is also reminded that schools in the Municipality of Thira will remain closed until Friday

Turkey Insists: “Volcanic Activity Possible” Due to Aegean Earthquakes, Says AFAD

Turkey’s Disaster and Emergency Management Authority (AFAD) released a preliminary assessment report on the recent earthquakes in the Aegean Sea, stating that seismic tremors could potentially trigger volcanic activity.

This is the second time AFAD has issued a statement on the earthquake sequence in the Aegean, now warning that “volcanic activation is possible.”

“If volcanic activity occurs in the region, our country could be affected by phenomena such as the transport of fine volcanic ash particles, pyroclastic flows due to the height and collapse of the volcanic column, and even a tsunami triggered by an eruption or an earthquake,” the statement read.

However, AFAD also noted that a similar period of intense seismic activity was observed in the region for 14 months between 2011 and 2012, but it did not result in volcanic activity.

The statement concluded by emphasizing that seismic, volcanic, and tsunami risks in the Aegean are being closely monitored.

Chilean Tourists Cross Police Tape to Reach Their Airbnb on the Oia Cliff

On the edge of the Oia cliff, where the Aegean stretches out like an endless blue canvas, Rodrigo and Leslie from Chile enjoyed a glass of wine. Seated at a small table, their glasses shimmering in the sunset light, they appeared completely at peace—despite the sheer drop of Santorini’s rugged cliffs just a few meters away.

Having arrived on the island only two days ago, nothing seems to faze them—not even the recent seismic activity that has unsettled other visitors.

Back-to-Back Earthquakes: 4.1 and 4.0 Magnitude in 20 Minutes

At 17:58, the Seismological Network of the National Observatory of Athens recorded a 4.0-magnitude earthquake. The epicenter was located 13 kilometers south-southwest of Arkesini, Amorgos, at a depth of 8.2 kilometers.

Roughly 20 minutes later, another 4.1-magnitude tremor was recorded, with its epicenter 15 kilometers south of Arkesini and a focal depth of 11.9 kilometers.

Otherworldly Scenes in Santorini: Empty Alleyways and Shuttered Shops

Santorini has become eerily deserted, as thousands of residents, workers, and visitors have left the island, fearing a stronger earthquake. From Sunday to Tuesday alone, more than 9,500 people departed via sea routes, according to an announcement from the Ministry of Shipping.

As a result, the island’s alleyways are empty, shops have closed their shutters, and only a few people can be seen in open space.

Landslides Continue in Santorini – Warning Signs and Barriers Installed Across the Island

Seismic tremors persist relentlessly in the broader Santorini island region, continuously triggering landslides and raising concerns among authorities and experts.

One notable example is Red Beach, where large rock sections have broken away. Special crews have placed warning tapes and signs in several locations across the island, cautioning about the dangers.

Urgent Announcement from EKPA: Over 6,400 Earthquakes Recorded in the Santorini-Amorgos Zone Since January 26

The Interdisciplinary Risk and Crisis Management Committee of the National and Kapodistrian University of Athens (EKPA) has issued an emergency announcement regarding seismic activity in the Santorini-Amorgos zone.

According to the report:

Seismic activity intensified between February 2 and the early hours of February 5, 2025.
On February 2 alone, 1,300 tremors were recorded, and on February 3, the number exceeded 1,400.
Since January 26, the total number of earthquakes has surpassed 6,400, with over 4,800 quakes above magnitude 1.0 and over 800 above 2.5.

The number of M≥2.5 earthquakes has been increasing daily, with the following progression:
0, 1, 2, 6, 9, 25, 45, 340, and 437 tremors between January 26 and February 3.
On February 2, five tremors reached M≥4.5, followed by seven on February 3 and nine on February 4. The largest earthquake recorded was M4.6 on February 2, while February 3 and 4 saw tremors reaching M4.9-5.0.
In the early hours of February 5, seismic activity persisted near Anydros, with over 30 quakes, the strongest measuring M4.4.

Seismic Cluster or Foreshock Sequence?
The seismic activity appears to be a seismic swarm, as no single earthquake stands out as the main event.
There are two possible scenarios:
The swarm may gradually decrease in intensity and continue for months, similar to the Thiva seismic swarm.
The swarm could trigger a major rupture in a large fault, leading to a main earthquake, followed by a typical aftershock sequence.

While the tremors are occurring within the active South Aegean volcanic arc, they are not directly linked to any known volcanic center. Instead, the activity seems to have activated a normal fault system in the Anydros basin.

Experts are intensifying monitoring efforts, with teams from the Seismology and Geophysics Labs of EKPA traveling to Ios and Santorini to install new seismographs and conduct ground deformation measurements.

Digital Map of Safe Gathering Points in Santorini and Amorgos

The Ministry of Digital Governance has announced the launch of mysafetyplan.gov.gr, a new digital platform designed to provide guidance and real-time information to citizens in the event of earthquakes and other natural disasters. The platform was developed in collaboration with the National Observatory of Athens.

The Online Map of Safe Areas is designed to ensure:

Accessibility: The service is available online without the need for app installation—users simply visit mysafetyplan.gov.gr.
Real-time Information: The map displays all approved temporary shelter locations, as designated by Civil Protection, local municipalities, and regional authorities.
Continuous Updates: Additional safety guidelines and educational materials on various natural disasters will be gradually added to the platform.

Additionally, special attention has been given to ensuring uninterrupted telecommunications, even in emergency conditions.

Telecommunications Measures:

Collaboration with Telecom Providers: The Ministry of Digital Governance, in partnership with Cosmote, Vodafone, and Nova, is ensuring the deployment of mobile communication units and generators in high-risk areas. These units have already been placed in Santorini, Anafi, Amorgos, and Ios to maintain connectivity even in case of power outages.
Satellite Communications: HellasSat has prepared a mobile satellite communication unit, which will be stationed at the Hellenic Air Force base in Santorini.

The mysafetyplan.gov.gr platform is part of a broader government strategy for disaster prevention, public safety, and real-time information. Effective planning, rapid guidance, and improved communication between authorities and citizens can save lives and minimize the impact of natural disasters.

Even the “earthquake-hardened” Japanese were scared by Santorini’s tremors – Watch video

Two tourists from Tokyo decided to leave the island earlier than planned due to the continuous tremors and explain their reasons to Protothema.

Suzuki and Akane, a couple from Tokyo, arrived on the island yesterday for a short getaway, but the relentless seismic activity made them rethink their plans.

Two earthquakes of magnitude 4.0 and 4.1 struck off Amorgos within five minutes (14:09 and 14:14)

The epicenter was located southwest of Arkesini, Amorgos.

Meeting Between the Mayor of Thira and the Regional Governor of South Aegean

A meeting is currently underway at the Thira Town Hall between the Regional Governor of South Aegean, Giorgos Hatzimarkos, and Mayor Nikos Zorzos.

As part of the precautionary measures being implemented on the island due to increased seismic activity, a municipal team has placed warning tapes in certain areas of Oia to restrict access. Similar measures have been taken at Skaros in Imerovigli. Additionally, the Municipality of Thira has issued an official announcement urging local hotel associations, rental room owners, and all active tourist accommodations to immediately inform their guests about avoiding hazardous areas of the island (e.g., Skaros) due to the heightened seismic activity in recent days. Visitors are also advised to fully comply with the guidelines issued by the municipality’s Civil Protection Department.

According to the municipality’s update, two specialized teams of structural engineers from the Technical Chamber of Greece, in collaboration with the Earthquake Planning and Protection Organization, have begun intensive inspections of school buildings in the area today.

Mitsotakis: Civil Protection must become a culture

The Prime Minister also stated, “We conducted a large-scale drill in Crete—Civil Protection must become a culture so that society can handle such crises effectively. I conclude with a message to our islanders: stay calm, cooperate with the authorities, and know that assessments of the phenomenon will be made daily.”

Mitsotakis: We are slightly more optimistic today, but no predictions can be made

In his statement, the Prime Minister emphasized the methodical work of Greek scientists in analyzing the situation in Santorini over the past few days. “It is the result of decades of meticulous work,” he said.

“We are dealing with three phenomena: the activity at Kameni, which is not new; the consistent activity at the underwater Kolumbo volcano, which we have been monitoring for years; and the third and most concerning, the activity at the Anydros fault, which has produced the most tremors. We are slightly more optimistic today, but no predictions can be made,” he added.

Kikilias: We are obligated to prepare our scenarios

The Minister of Civil Protection referred to the scenarios the state has developed to address the phenomenon between Santorini and Amorgos, highlighting that a ferry is stationed in the area. At the same time, he expressed his gratitude to the Fire Department and the Armed Forces for their efforts.

Two earthquakes of 4.7 and 4.8 magnitude struck Amorgos within two minutes.

The seismic history of the area was presented by Evi Nomikou, professor at the Department of Geology and Geoenvironment at the University of Athens.

At the same time, she provided maps to explain how the Santorini Caldera behaves and what is happening in the underwater area between Santorini and Amorgos.

Papazachos: Residents will continue to feel tremors in the coming period

“Residents will continue to feel tremors in the coming period, so they should remain calm. The situation seems to be heading toward a better scenario regarding seismic activity.”

Professor of Geophysics and Seismology, Kostas Papazachos, presented maps and graphs showcasing the current seismic activity, comparing data from the periods 2011–2012 and 2024–2025.

Live update on the earthquakes:

New 4.5 Richter Earthquake in Amorgos

Papanikolaou: The Maximum Earthquake Expected in Santorini Is 6.0 Richter

Speaking about the ongoing seismic activity around Santorini in recent days, Emeritus Professor of Geology and former president of the Earthquake Planning and Protection Organization (OASP), Dimitris Papanikolaou, shared his insights.

“We do not expect any impact on the three islands of Amorgos, Anafi, and Ios. Our only concern is Santorini, where residents feel the tremors much more intensely. The orientation of the faults is such that the shaking is amplified for them. In 1956, the earthquake struck Amorgos, 30 kilometers away from Santorini, yet Santorini suffered massive destruction. The fault’s direction funneled the seismic energy toward the island, leading to the collapse of many buildings. However, the current situation is in no way comparable to what happened back then,” Papanikolaou emphasized.

120 Million Tons of Water Affected by Seismic Activity

Initial estimates from the National Technical University of Athens, based on measurement analysis, indicate that water turbidity in the hydrothermal field at a depth of 500 meters—extending up to the first 100 meters—has increased by 25%, likely due to intense activity and sediment stirring.

Water temperatures previously recorded only near the hydrothermal vents at 500 meters depth were also detected at 400 meters on Sunday, February 2.

Tselentis Insists: A 5-Richter Quake Doesn’t Release the Fault’s Energy

Seismologist Akis Tselentis offered a different assessment regarding the course of earthquakes in Santorini on Wednesday afternoon. He argued that a 5.0-magnitude earthquake or multiple 4.0-magnitude tremors are not enough to release the fault’s energy.

According to him, “the phenomenon is ongoing with foreshock characteristics.”

“MySaFeTyPlan” – The New Platform with Shelters for Earthquakes

Starting today, the MySaFeTyPlan application from the Ministry of Digital Governance is available to internet users. The platform indicates open spaces across the country where residents can find a safe shelter in case of natural disasters.

Alleyways in Santorini Cordoned Off

Due to the high risk posed by continuous seismic tremors, authorities have cordoned off certain alleyways on the island with tape.

At 12:30, the Mayor of Thira’s Announcement on Seismic Activity

Mr. Nikos Zorzos’ statements will take place at the island’s town hall.

59-Year-Old Arrested in Santorini for Attempting to Break Into a Bus with an Axe

A 59-year-old foreign national was arrested yesterday afternoon by officers of the Thira Police Department. The suspect faces charges of attempted theft and illegal residence in the country, with a case file being compiled against him.

According to the investigation, on Tuesday morning, the 59-year-old attempted to break into a bus. However, his actions were noticed by bystanders, forcing him to flee before completing the act.

New landslide at Red Beach in Santorini

Kostopoulos: We could see magma rising in the event of a 6.0 to 7.0 magnitude earthquake.

Another 4.0-Magnitude Earthquake Hits Amorgos

Seismic activity in the Aegean remains relentless, with tremors occurring one after another in recent hours. A fresh 4.0-magnitude earthquake was recorded in Amorgos on Wednesday morning.

Six Earthquakes Over 3 Richter Since 6 AM

Meeting at 1 PM Led by Mitsotakis at Civil Protection Headquarters

According to sources, the meeting will be attended by Prime Minister Kyriakos Mitsotakis and Minister of Climate Crisis and Civil Protection Vassilis Kikilias, along with professors Lekkas and Papazachos, Kostas Synolakis, and Evi Nomikou, who is conducting measurements on volcanic activity. Additionally, broader measures are expected to be announced, including inspections in Santorini, while the overall situation regarding the operation of schools and public services will also be assessed, as the current restrictions are set to expire on Friday.

Yesterday: 4/02/25:

4.6-Magnitude Earthquake East of Amorgos

A 4.6-magnitude earthquake was recorded at 10:00 PM by the seismological network of the Geodynamic Institute of the National Observatory of Athens.

The epicenter was located in the sea area, 19 km south-southwest of Arkesini, Amorgos.

Which Islands Will Have School Closures on Wednesday?

Local municipal authorities have decided to suspend school operations on several Cycladic islands due to the ongoing seismic activity in Santorini.

On Wednesday, all primary and secondary schools, as well as kindergartens, will remain closed in the municipalities of Mykonos, Naxos & Small Cyclades, and Paros.

Additionally, schools in Patmos and Leros will also be closed on Wednesday.

In Ios, schools will remain closed until Friday.

Blue Star 1 Ferry Routes Canceled Due to Weather

The morning routes of Blue Star 1 to the Cyclades on Wednesday have been canceled due to severe weather conditions.

Services will resume once weather conditions improve.

Athens Municipality Opens Friendship Club for Cyclades Residents

The Athens Municipality has mobilized to support Cyclades residents affected by the intense seismic activity in their region.

As an immediate response, the municipality has opened the Agios Pavlos Friendship Club (Mamouri 22 & Dymis) to provide shelter for those forced to evacuate their homes.

The facility will remain open as long as needed, offering safe accommodation, food, and essential supplies.

Residents in need can call the Athens Municipality’s 24-hour helpline at 1595 for more information before arriving.

Athens Municipality Opens Friendship Club for Cyclades Residents

The Municipality of Athens has mobilized in support of Cyclades residents following the intense seismic activity in the region.

To assist those affected, the municipality has immediately opened the Agios Pavlos Friendship Club (Mamouri 22 & Dymis) to provide shelter for individuals forced to evacuate their homes. The facility will remain open for as long as necessary, offering a safe refuge, accommodation, and food to those in need.

Residents seeking assistance are encouraged to contact the 24-hour Athens Municipality helpline at 1595 for more information and guidance before arriving at the Friendship Club.

Calm in Amorgos Despite “Terrifying” 5.0-Magnitude Quake

Residents of Amorgos, located about 20 kilometers from the epicenter of the ongoing seismic activity, remain composed despite their concerns over the continuous rumbling.

As they told Proto Thema, even during the major earthquake of 1956, the island did not suffer significant damage.

Mass Exodus from Santorini as Tremors Persist

Thousands of people have left Santorini following the relentless seismic activity on and around the island.

According to local reports, most of those departing are seasonal workers. As seen in the images below, many are leaving with their belongings and pets, seeking safety elsewhere.

Homes with a View at Risk on the Edge of Santorini’s Caldera, Says Geology Professor

Emeritus Professor of Geology Dimitris Papanikolaou has warned about the potential dangers facing buildings in Santorini in the event of a strong earthquake.

According to Papanikolaou, Oia is particularly vulnerable as it is closer to the epicenters of the seismic tremors.

“Oia is located on lava and pumice stone, while the southern part of the island sits on more compact and cohesive limestone and marble. This means the impact of an earthquake would vary, with the greatest risk being for homes that boast breathtaking views but are also perched on unstable slopes along the Caldera.”

“No matter how well these homes have been built, they still rest on an unstable foundation at the edge of the Caldera. A 5.5 or 6.0 magnitude earthquake could dislodge parts of the rock formations, triggering landslides. We already saw this with a 4.5 magnitude quake, which caused rockfalls and soil displacement along Santorini’s cliffs. This is expected. However, properly constructed buildings are not likely to suffer damage,” Papanikolaou told MEGA.

Suspension of Sports Activities in Santorini, Anafi, Ios & Amorgos Due to Ongoing Seismic Activity

Deputy Minister of Sports Giannis Vroutsis has recommended the suspension of all sports activities on the islands of Santorini, Anafi, Ios, and Amorgos, following guidance from the Ministry of Climate Crisis and Civil Protection due to continued seismic activity in the region.

In a letter addressed to all sports federations, Vroutsis specifically urged the suspension of games and training, particularly in indoor venues.

The letter states:

“Considering the announcements from the Ministry of Climate Crisis and Civil Protection regarding the increased seismic activity in the sea area between Santorini and Amorgos and the preventive measures already in place, we strongly advise sports federations and clubs to suspend their activities (training, competitions), especially those held indoors. Similar precautionary measures should also be considered for other Cycladic islands.”

Greek Prime Minister to Visit Civil Protection Headquarters for Santorini Earthquake Briefing

Greek Prime Minister Kyriakos Mitsotakis is scheduled to visit the Civil Protection headquarters at 1:00 PM on Wednesday (Feb. 5) to receive an update on the ongoing situation in Santorini.

Following a recommendation from Minister Vasilis Kikilias, four leading scientists—Efthymios Lekkas, Kostas Synolakis, Kostas Papazachos, and Evi Nomikou—will present their assessment of the seismic activity. The Prime Minister is expected to make a statement afterward.

Schools in Leros to Close Due to Ongoing Earthquakes, Mayor Announces

All schools in Leros will remain closed from Wednesday, February 5, 2025, to Friday, February 7, 2025, due to ongoing seismic activity, as decided by the island’s Mayor, Timotheos Kottakis.

“By order of the Mayor of Leros, Mr. Timotheos Kottakis, the operation of all educational institutions, including kindergartens, is suspended from Wednesday, February 5, 2025, to Friday, February 7, 2025. This decision was made with the safety of our students in mind, due to the ongoing seismic tremors along the Santorini-Amorgos fault line,” the announcement states.

Fear and Uncertainty as Tremors Persist

? February 4, 2025 – 18:43
“We are quite scared. Every few minutes, the ground shakes, and it’s exhausting to live like this for days,” say residents and workers in Leros.

In the waiting lounge at Athens International Airport (Eleftherios Venizelos), tourists preparing to fly to Santorini express mixed feelings about the situation. Vira, a traveler from Taiwan, says that earthquakes are nothing new for her, but acknowledges the unease caused by the continuous tremors in Greece.

On the plane to Santorini, local passengers discuss the relentless seismic activity and the low, rumbling sounds accompanying each tremor. “Even though we’re used to it, it doesn’t make it any less terrifying,” they say.

Daily Life Disrupted on Santorini

Walking through the narrow streets of Fira, overlooking the Caldera, the scene is reminiscent of pandemic times—only a handful of open shops, a few tourists taking silent photos, and locals glued to their phones, checking for updates on the earthquake sequence.

“In 2011, we had similar seismic activity, but nothing like this for so many days. I sleep in my yard now—better in my car than waking up in my bed in fear,” says one local resident.

For Matthaios, who has lived and worked on the island for almost a decade, nights have become especially challenging. “Every hour or two, you wake up because the ground moves. And we’re all thinking, ‘Is this the big one? Is this it?’ The waiting is exhausting. You barely sleep two or three hours.”

This period of the year usually marks the beginning of preparations for the upcoming tourist season. Many business owners and workers have already arrived on the island to set up for March. However, Matthaios wonders whether this seismic crisis will affect tourism and whether authorities have the proper equipment to monitor the situation. “This is unprecedented. I don’t know if they have the right tools to evaluate what’s happening,” he adds.

Locals Reliving Past Earthquakes

Sitting in a private van near the exit of Fira, Mrs. Vangelio and Mr. Fragoulis hold shopping bags filled with fresh greens. They usually spend summers on Thirasia and winters in Santorini. “I lived through the 1956 earthquake in a cave house in Thirasia,” Mr. Fragoulis recalls.

Panic at the Port as Strongest Quake Hits

At 13:30, at the Athinios Port, Coast Guard officers begin organizing vehicles for departure on the Blue Star 1 ferry. As more people arrive, the crowds swell. Among them is Stavros Anastasiadis, a local businessman.

“Santorini shakes every ten minutes. So many earthquakes. There’s a lot of concern. I wasn’t planning to leave, but I had work to do. I arrived, got my tasks done, and felt the tremors. I hope everything turns out okay,” he says.

Just after 15:00, while passengers wait inside the terminal, a magnitude 5 earthquake—the strongest yet—strikes the island. “See that? This is what we’ve been feeling nonstop,” exclaims Flora Karamolegkou.

As panic grows, cars are packed to the brim, with families clutching children, holding onto their pets, and loading luggage onto ferries.

One resident, Dimitra Kappou, explains her decision to leave:
“Even though I work here, I’m leaving. I was alone, and my daughter was worried about me getting trapped. So, we decided that I should go for a while. When you’re in the epicenter, on a volcanic island with unstable ground, it’s more frightening than being in mainland Greece where quakes happen far away. Maybe we’re overreacting, but fear takes over. This could go on for months, and that’s the hardest part.”

At 17:00, the Blue Star 1 departs for Piraeus with 1,150 passengers—locals and workers, some of whom have spent their entire lives on the island, now choosing to leave.

Santorini Municipality Issues Safety Guidelines for Tourists Amid Seismic Activity

The Municipality of Thira has issued a public advisory urging hotel associations, rental accommodation owners, and hospitality providers to inform tourists about the ongoing seismic activity on Santorini.

Specifically, accommodation owners are asked to warn visitors to avoid dangerous locations, such as the Skaros Rock, a popular but hazardous spot for photography.

Additionally, the municipality has released safety instructions for tourists in light of the recent earthquake swarm, including information on designated evacuation zones in case of a major quake.

Emergency Assembly Points in Case of an Earthquake

The Thira Civil Protection Office has designated and marked evacuation areas across Santorini:

Oia – Finikia – Koloumpos → Baxedes Plain
Imerovigli – Vourvoulos → Vourvoulos Plain
Fira – Firostefani – Kontochori – Karterados → Fira Plain (between Exo Gialos Fira & Exo Gialos Karterados)
Vothonas – Messaria – Monolithos – Episkopi Gonia – Kamari → Western Plain of the Airport
Pyrgos – Exo Gonia – Megalochori → Southern Plain of Pyrgos & Eastern Megalochori Plain
Emporio – Perissa – Vlychada – Agios Georgios → Agios Nikolaos Area – Northwest Plain of Emporio
Akrotiri → Southeast Plain of Akrotiri
Thirassia → Plain between Manolas and Potamos villages

Over 11,000 People and 1,200 Vehicles Have Left Santorini

As of February 4, 2025, more than 11,000 people have left Santorini due to concerns over seismic activity.

7,000 residents and 1,200 vehicles departed by ferry.
Over 4,000 people left by air travel.

Amorgos Residents Seek Refuge in the Mountains After 5.0-Magnitude Earthquake

Significant unrest has also been reported on Amorgos, where continued seismic tremors have caused concern among locals.

The strongest earthquake since Saturday’s onset struck at 5.0 magnitude on Tuesday afternoon, with an epicenter south-southwest of Arkesini and a depth of 13.2 km.

The tremor was particularly intense, prompting many residents to leave their homes. Reports indicate that people have moved to the mountains, sleeping in cars and higher-altitude areas to avoid potential aftershocks (source: CycladesLive.gr).

Authorities continue to monitor the situation as seismic activity persists across the region.

“The 5.0-Magnitude Earthquake Is Too Small to Be the Main One in Santorini,” Says Efthymios Lekkas

Professor of Geology and Natural Disaster Management, Efthymios Lekkas, spoke about the ongoing seismic activity between Santorini and Amorgos. According to him, the 5.0-magnitude earthquake that struck on Tuesday afternoon and was felt even in Attica is too small to be considered the main event.

“A 5.0 earthquake is too small to be the main one. Personally, I would have preferred a 5.5-magnitude quake that wouldn’t cause significant impact. Such an event might indicate the main earthquake and mark the beginning of the seismic activity’s decline,” Lekkas told MEGA.

He further explained that the variations in seismic activity since it began three days ago are minimal. “Typically, when frequency increases and then decreases, magnitude tends to rise. It’s a complex process, but there haven’t been major changes. The only notable difference was today’s 5.0 earthquake,” he noted.

NKUA: Over 2,500 earthquakes from June to February 1st—More than 1,200 in just three days

The seismic activity in the region is being monitored by the Seismology Laboratory of the National and Kapodistrian University of Athens (NKUA), which stated in an announcement that from June 2024 to February 1, 2025, more than 2,500 earthquakes occurred, with 1,200 of them happening within just three days.

Meanwhile, from February 1 to February 4 at 09:00, a total of 43 earthquakes with a magnitude of 4.0 or higher were recorded. The largest quakes occurred on February 3 at 14:17:41 and February 4 at 04:46:07, both measuring 5.0 in magnitude.

Detailed Announcement:

The National and Kapodistrian University of Athens, through the Seismology Laboratory of the Department of Geology and Geoenvironment, is monitoring in real time the evolution of seismic activity in the volcanic complex of Santorini, as well as the Santorini–Amorgos zone, near the islet of Anydros. In June 2024, microseismic activity began to appear within the Santorini Caldera, intensifying from mid-September. This marks the first significant microseismic activity inside the Caldera since the 2011–2012 period. In response, the NKUA Seismology Laboratory has maintained permanent seismological stations on Santorini since 2011. In contrast, the area around the Kolumbo submarine volcano, approximately 8 km northeast of Santorini, has consistently exhibited higher seismic activity over time.

Microseismic epicenters in Santorini were primarily located around Nea Kameni and the broader Imerovigli–Fira area, following the “Kameni Line” in a northeast–southwest direction. Simultaneously, microseismic activity was also observed east of Kolumbo. Overall, from June 2024 to January 25, 2025, advanced machine-learning methods detected more than 1,200 earthquakes in the Santorini–Kolumbo region. The largest one occurred on January 25 at 08:57:25 (Greece time) near the southeastern shores of Thirasia, with a magnitude of 3.8.

On January 26, a new cluster of earthquakes emerged east of the Kolumbo volcano, peaking in intensity the following day. By January 29, over 1,300 earthquakes had been identified using machine-learning techniques. By February 1, the total number exceeded 2,500, marking an unusually high rate of seismic activity, particularly for earthquakes larger than 4.0 in magnitude. The seismic activity has since spread to the area around the islet of Anydros.

According to NKUA’s daily analysis of seismic data, from February 1 to February 4 at 09:00, a total of 43 earthquakes of 4.0 magnitude or greater were recorded. The two largest events occurred on February 3 at 14:17:41 and February 4 at 04:46:07, both measuring 5.0. Santorini’s dense seismological network, part of the Unified National Seismograph Network (UNSN) in which the NKUA Seismology Laboratory participates, is being further strengthened with new instruments both on Santorini and surrounding islands.

As part of a multi-parameter monitoring approach for Santorini’s volcanic region, particular attention is being given to ground deformation studies and their correlation with seismic activity. Since 2011, the NKUA Geophysics Laboratory has maintained a permanent GNSS/GPS geodetic station in Imerovigli (station SANT), while a non-permanent GPS network has been periodically remeasured at 21 locations across Thira, Thirasia, and Nea Kameni since 1994.

Daily data processing from the SANT station has revealed changes in the region’s kinematic behavior since August 2024. Following the 2011–2012 activity, horizontal ground velocity vectors reflected the region’s broader tectonic motion (southeast relative to ITRF2014), while vertical movement remained stable. However, since August 2024, a shift has been observed, with the horizontal vector rotating to an east-northeast direction and simultaneous uplift occurring at a rate comparable to that of 2011–2012. A new remeasurement of the GPS network will be conducted to improve spatial analysis of ground movement and accurately map deformation across the Thira–Thirasia area, with a focus on its connection to the two volcanic centers: Nea Kameni and Kolumbo.

The pattern of seismic activity between Santorini and Amorgos—characterized by an increasing number of earthquakes of 4.0 magnitude or greater—may exhibit characteristics of an earthquake swarm (a series of similar-sized quakes). However, it cannot be ruled out that this activity could be part of a foreshock sequence. The NKUA Seismology Laboratory, in collaboration with relevant authorities, as well as other Greek institutes and universities, continues to closely monitor the phenomenon, analyzing real-time seismic station data using innovative analytical tools.

New 4.2 Richter earthquake within minutes

A new earthquake measuring 4.2 on the Richter scale was recorded 22 km south-southwest of Arkesini, Amorgos, just minutes before the 3.7 Richter tremor

Hatzimarkos: There Is No Wave of Tourist Cancellations

Between 5,000 and 6,000 people have left Santorini, estimates the Governor of the South Aegean, Giorgos Hatzimarkos.

Speaking on Proto Programma, Mr. Hatzimarkos stated that the recent seismic activity in the Cyclades is an extremely rare phenomenon and, according to scientists, one of the most challenging seismic sequences they have encountered in their careers.

Mr. Hatzimarkos emphasized that the top priority at the moment is the protection and safety of residents, as well as ensuring that the state apparatus is on high alert.

“At the same time, of course, our team working on tourism is closely monitoring developments on that front as well, because economic trends always play a crucial role in shaping the quality of life in any place or country. As of yesterday evening, based on the data we have, there has been absolutely no wave of cancellations. There is no indication whatsoever of any negative impact on tourism. Every day, we conduct a thorough scan across all online booking platforms, as well as through organized tour operators with contracts on the island. As of last night, the balance was actually positive—meaning that bookings have increased rather than decreased,” he said.

The governor reassured that continuous meetings are being held with all parties involved in the response efforts at a precautionary level. When asked directly, he clarified that there is no evacuation plan in place.

“There are officially approved plans with designated names, available online. These are operational plans—Talos 2 and Enceladus 2—which include preparatory stages. Right now, we are implementing both of them. Neither of these plans includes evacuation, nor could Enceladus 2 involve an evacuation because that would imply predicting an earthquake in advance. And predicting earthquakes is simply not possible,” Mr. Hatzimarkos concluded.

Zelilidis (Professor of Geology): I Believe the Rising Magma Is Causing the Earthquakes

The ongoing seismic sequence in the Cyclades is linked to volcanic activity, according to Professor of Geology at the University of Patras, Avraam Zelilidis.

Explaining the geological process in detail, Professor Zelilidis stated:
“As Africa subducts beneath Europe along an arc that runs south of Crete, at a depth of approximately 80 kilometers, the sinking African plate begins to melt. This process creates a corresponding arc—the volcanic arc—that extends from Methana to Milos, Nisyros, and as far as Sousaki. So, it is well known that these volcanoes are active. They haven’t erupted in a long time. Only Santorini erupts periodically. The rest have shown no activity, but we consider the volcanic arc to be active, meaning that at any moment, the other volcanoes could also be reactivated.”

New video from yesterday’s landslides at Vlychada Beach in Santorini

New landslide after seismic tremor in Firostefani, Santorini

Deputy Minister of Shipping: No Increase in Ferry Ticket Prices

“There are preparatory measures that, according to plans, are implemented when such a phenomenon occurs, and all services have declared their readiness in case of an incident. Everyone is prepared,” stated Deputy Minister of Shipping Stefanos Gikas on ERTNews, denying allegations of ferry ticket price hikes due to increased demand.

“That is not true. There has been no increase in ferry ticket prices. In coordination with ferry companies, we have even added extra routes. Not a single cent has been added to ticket prices. I don’t know about airline fares, but as far as ferries are concerned, there is no increase,” Mr. Gikas clarified.

Speaking to journalists Giorgos Siadimas and Stella Papamichail, he emphasized that there is direct communication with ferry companies and the Passenger Shipping Companies Association to arrange additional routes, provided weather conditions allow it.

Regarding the operational plans in place (Talos, Enceladus) for responding to a potential seismic event, he stated that “there is a list of larger passenger ships that will be activated if evacuation is required,” though he hopes it won’t come to that.

According to the Deputy Minister, people should remain calm and avoid panic, adding that “if needed, the state is here to assist.” He also noted that current attention is focused on Santorini, Amorgos, Ios, and Anafi, while stressing that preparedness extends across all of the Cyclades as well as the Dodecanese.

Four earthquakes of 4 Richter and above in 15 minutes

Four earthquakes measuring 4 Richter and above were recorded within 15 minutes on Amorgos. The strongest one had a magnitude of 4.6 Richter.

Tselentis: The most likely scenario is that the main earthquake will occur soon.

Four earthquakes over 4 Richter in one hour

Papazachos: The seismic sequence indicates the arrival of a stronger tremor.

Kostas Papazachos, professor of Geophysics, described the seismic sequence between Santorini and Amorgos as “difficult.”

It is unprecedented for the conditions in Greece, Mr. Papazachos emphasized. “Unprecedented because there is no main earthquake.”

In fact, he said, the seismic sequence indicates the arrival of a stronger tremor.

The seismic sequence in the last 24 hours.

Aegean: 8 Flights Today, Tuesday, From Santorini to Athens
Aegean informs that on Monday, February 3rd, it operated a total of 9 flights from Santorini to Athens, 4 regular and 5 emergency, transporting a total of 1,294 passengers from the island to Athens.

For today, Tuesday, February 4th, 8 flights have already been scheduled, 4 regular and 4 emergency, all with Airbus 320 aircraft, with a total seating capacity of over 1,400 seats.

At this moment, there are still available seats on at least 2 of today’s emergency flights from Santorini to Athens.

In total, during the first two days, Monday and Tuesday, approximately 2,500-2,700 passengers will have been transferred from Santorini to Athens.

Due to the special circumstances, the airplanes are arriving in Santorini with very few passengers, mainly from various service teams, while the flights from Santorini are departing full.

The fares for the seats offered on all the additional emergency flights operated yesterday and today range between 55-65 euros (including VAT and 22 euros in airport taxes from Santorini to Athens).

If the need persists, additional emergency flights will be added for Wednesday, 5/2.

Photo by Associated Press from Santorini

?AP Photo/Petros Giannakouris https://t.co/bzQ3nQxe9T pic.twitter.com/Pix9NmOgIl
— Thomaïs Papaïoannou (@ThomaisERT_RIK) February 4, 2025

Approximately 9,000 people have left Santorini – Scenes from the port

In the early hours of the morning, chaos prevailed at the island’s port as many families waited to board the ferry to Piraeus. The ships Kissamos and Blue Star Paros operated emergency routes.

According to the latest data, over 9,000 people—both residents and tourists—have left the island. The scene at Santorini’s port at dawn was striking, with dozens of families preparing to board the scheduled ferry.

Six earthquakes in 50′ this morning in Amorgos and Anafi
Six earthquakes occurred between 6:15 and 7:05 in the morning in Amorgos and Anafi. The smallest was 3.1 Richter, and the largest was 3.9R.

Yesterday: 3/02/25

Three New Earthquakes Follow the 4.6 Magnitude Quake in Amorgos

Shortly after the 4.6 magnitude earthquake in Amorgos at 19:44, three more tremors were recorded in the wider area within 20 minutes.

According to the Geodynamic Institute, a 3.7 magnitude tremor occurred at 19:52, followed by a 2.7 magnitude quake at 20:09, and another 3.4 magnitude tremor two minutes later.

Erdogan: Earthquakes in Greece Highlight the Importance of State Readiness

Turkish President Recep Tayyip Erdogan also commented on the intense seismic activity in Greece in recent days, referencing the devastating earthquakes that struck Turkey and Syria two years ago, on February 6, 2023.

Erdogan took the opportunity, in light of the situation in the Cyclades, to emphasize the importance of proper preparedness.

Cumhurbaşkanı Erdoğan: Yunanistan tarafındaki sarsıntılar hem yaptığımız çalışmaların değerini hem de depreme hazırlığın ülkemiz için bir beka meselesi olduğunu hatırlatmaktadır. pic.twitter.com/Ve5tLYedXe
— TRT Haber Canlı (@trthabercanli) February 3, 2025

Earthquake of 4.5 Magnitude off the Coast of Karapathos

A 4.5 magnitude earthquake occurred at 19:44, approximately 63 kilometers west-northwest of Olympos, Karapathos, according to the automatic solution from the Geodynamic Institute.

Lekkas: Positive Sign That Seismic Activity Is Shifting Toward Amorgos

“Seismic activity remains intense today, with several significant tremors ranging between 4.0 and 5.0 in magnitude. These are earthquakes that are strongly felt by the island’s residents, and this activity is now shifting northeastward, closer to Amorgos,” stated Efthymios Lekkas, president of the Greek Organization for Earthquake Planning and Protection (OASP), speaking to ERT.

“It appears that faults are being activated, but they are not related to the fault responsible for the 1956 major earthquake. That particular fault released a vast amount of energy back then and would take thousands of years to recharge enough to produce another large earthquake. Instead, what we are seeing now is the activation of smaller faults to the northwest of the Amorgos fault,” he added.

He further emphasized:
“The fact that the activity is shifting toward Amorgos is a positive factor. Santorini is particularly vulnerable compared to Amorgos. Amorgos consists mostly of rocky formations, has fewer buildings, and a smaller overall area. Therefore, we are not overly concerned. If these epicenters were closer to Santorini, it would be a different story, as the island has completely different geological and structural characteristics.”

“Another positive aspect—something we analyzed in the Committee—is that this current seismic activity has no connection whatsoever with the ongoing seismo-volcanic processes in the Caldera or the Kolumbo submarine volcano. These are completely separate events, at least for now,” Lekkas concluded.

Other Notable Updates

Blue Star Patmos to Arrive in Santorini at 5:30 AM from Kastelorizo

? Panoramic Images Show Long Car Queues Heading to Santorini’s Port

Continuous Monitoring of the Kolumbo Submarine Volcano Near Santorini
Scientists are closely observing Nea Kameni and the Kolumbo underwater volcano, amidst the recent surge in seismic activity in the region.

SYRIZA: Strengthening the State Mechanism Is Critical and Urgent

“We are closely monitoring the ongoing seismic activity in Santorini, Amorgos, and the surrounding areas, and we are in contact with relevant authorities and scientists,” emphasized SYRIZA’s sector heads, G. Psychogios and Al. Meikopoulos.

Additionally, they stated:
“The mobilization and reinforcement of the state mechanism at all levels are critical and urgent. We urge citizens to remain calm and follow the authorities’ instructions. We are on high alert, standing by field workers, residents, and emergency services. Once the phenomenon subsides—hopefully soon—we will discuss in detail prevention measures, necessary interventions, staffing, and other key aspects.”

European-Mediterranean Seismological Center: Over 555 Earthquakes Recorded Since January 28

According to a post by the European-Mediterranean Seismological Center, Santorini has experienced a significant increase in seismic activity since January 28.

Since January 28th, the island of Santorini has experienced a significant increase in seismic activity. More than 555 earthquakes with magnitudes up to 5 have been recorded. These earthquakes are concentrated about 25 kilometers northeast of Santorini. pic.twitter.com/DZXH0QVpkw
— EMSC (@LastQuake) February 3, 2025

“More than 555 earthquakes, with magnitudes reaching up to 5.0, have been recorded. These earthquakes are concentrated approximately 25 kilometers northeast of Santorini,” the center reported, accompanied by a graph illustrating the seismic events.

No Need for Panic, We Won’t See an Earthquake Like the One in 1956

“The seismic activity currently developing near Amorgos will last from a few days to weeks, maintaining similar magnitudes. It takes thousands of years for the fault to fully recharge. It will not produce large-magnitude earthquakes. We may see magnitudes above 5 on the Richter scale, but there is no need for panic—we will not experience an earthquake like the one in 1956,” emphasized the president of the Earthquake Planning and Protection Organization (OASP), Efthymios Lekkas, speaking to Mega.

Regarding the possibility of a tsunami, he acknowledged the risk but assured that it would be small.

Schools Closed in Thira, Anafi, Ios, and Amorgos Until Friday

Due to the increased seismic activity in the offshore area of Anydros, between Thira and Amorgos, the president of the Earthquake Planning and Protection Organization (OASP), Professor Efthymios Lekkas, convened another joint meeting today at noon. The meeting brought together the two scientific committees: the Permanent Scientific Committee for Seismic Risk Assessment and Mitigation and the Permanent Scientific Committee for Monitoring the Hellenic Volcanic Arc.

The meeting took place at the Ministry of Climate Crisis and Civil Protection, with the participation of Minister Vasilis Kikilias, Deputy Minister Evangelos Tournas, Secretary-General for Civil Protection Vasilis Papageorgiou, and representatives of the Fire Department leadership.

After thoroughly analyzing all available data, the committees unanimously concluded that:

Seismic activity within the caldera remains at the same low levels as in previous days.
The seismic sequence in the offshore area of Anydros, between Thira and Amorgos, has significantly increased, with 200 earthquakes recorded since February 1st, measuring over 3.0 in magnitude (the highest recorded being 4.9).
The current seismic activity in the Anydros area is attributed to underwater faults with a northeast-southwest orientation and is not related to volcanic activity.
The committees recommend the following precautionary measures: a. Schools will remain closed until Friday, February 7, 2025, in Thira, Anafi, Ios, and Amorgos. b. Citizens should:
- Avoid large indoor gatherings.
- Avoid approaching abandoned buildings.
- Avoid access to and staying at the ports of Ammoudi, Armeni, Korfos, and the Old Port of Fira.
- Remove hazardous non-structural elements in buildings (such as heavy hanging objects and false ceilings) and drain water from swimming pools.
- Choose safe routes when traveling within urban areas and on the provincial road network, especially in areas with steep slopes where landslides may occur.
- Immediately move away from coastal areas in the event of a strong earthquake.

The committees will meet again on Wednesday, February 5, at 08:00. For further information on earthquake protection measures, citizens can visit the websites of the Earthquake Planning and Protection Organization (www.oasp.gr) and the Ministry of Climate Crisis and Civil Protection (www.civilprotection.gr).

SEEN President: No Changes in Ferry Ticket Prices Due to Increased Traffic in Santorini

No member of the Association of Passenger Shipping Companies (SEEN) has increased ferry ticket prices due to the increased traffic at the port of Santorini, which has been caused by ongoing seismic activity.

SEEN President Dionysis Theodoratos, in a statement to the Athens-Macedonian News Agency (ANA-MPA), emphasized that in response to the intense seismic activity on the island of Santorini, the ferry companies that are members of the Association are supporting the residents by facilitating transportation, even with additional emergency routes.

He also stressed that no member of the association has made any changes to ticket fares.

New 4.2-Magnitude Earthquake Off Amorgos

A new 4.2-magnitude earthquake was recorded at 13:52 offshore Amorgos, according to the revised report from the Geodynamic Institute.

Kikilias: All Measures Taken So Far Are Preventive

Vassilis Kikilias highlighted the full preparedness of the state mechanism to monitor the intense seismic activity in Santorini while speaking in the Greek Parliament.

The Minister of Climate Crisis and Civil Protection emphasized that all measures taken so far “are preventive.” He further stated, “I have been reserved in my statements regarding ministry matters that involve crises. On an operational level, in recent days, Civil Protection, the Armed Forces, the Coast Guard, local authorities, and all relevant agencies have done everything necessary on the ground. The earthquake risk assessment committee convenes daily. We trust the scientists closely monitoring the prolonged seismic activity. Today, the emergency number 112 was activated for Santorini and nearby islands due to minor landslides. We will continue to observe how the phenomenon evolves. All measures taken so far are preventive.”

Oikonomou on Ticket Prices from Santorini: We Will Eliminate Any Profiteering

The relevant ministries are investigating complaints about increased airfare prices from Santorini, according to Deputy Minister of Infrastructure and Transport Vassilis Oikonomou.

“If there is profiteering and some are trying to exploit the situation (i.e., increased demand due to seismic activity) to gain excessive profits beyond what is legally allowed, they should be careful,” Oikonomou stated. He added, “We will coordinate with the Ministry of Development (responsible for price regulation) to restrict or completely eliminate such tendencies and behaviors.”

High-Power Generators Arrive in Santorini

Transformers, generators, and cables transported by HEDNO (Hellenic Electricity Distribution Network Operator) trucks have arrived in Santorini to ensure the authorities are prepared to supply electricity to the island in case of a blackout.

Local authorities remain in constant communication with experts, while seismologists closely monitor activity in the area.

Emergency Flights by SKY Express to and from Santorini

SKY Express has responded to the current situation in Santorini by adding two emergency flights today and two more tomorrow to and from the island, facilitating the movement of residents and visitors.

Regularly scheduled flights to and from Santorini continue as planned.

Emergency EKAB (Ambulance Service) Units Arrive in Santorini

New 4.4-Magnitude Earthquake Off Amorgos

A new 4.4-magnitude earthquake was recorded at 15:05 offshore Amorgos, according to the revised report from the Geodynamic Institute.

ATTICA GROUP Adds Emergency Ferry Route to Santorini

ATTICA GROUP has scheduled an emergency ferry route to Santorini using the passenger-vehicle ferry Kissamos, which normally operates on the Heraklion–Piraeus route. Tonight, it will make a detour to Santorini’s port.

The ferry departs from Heraklion at 21:00 and is expected to arrive in Santorini at 01:00 AM on Tuesday. The vessel operates under ANEK Lines, now part of the Attica Group.

Earthquakes Between Santorini and Amorgos Are Tectonic, Not Volcanic, Says Gerasimos Papadopoulos

Seismologist Gerasimos Papadopoulos reiterated in a social media post that the earthquakes occurring between Santorini and Amorgos are of tectonic origin, not volcanic.

“One of the scientific proofs comes from the fault mechanisms of the strongest earthquakes, as published by the Geodynamic Institute. All but one indicate an identical rupture direction (NE-SW), precisely matching the direction of the main active fault in the region,” he explained.

Geodynamic Institute Revises 14:17 Amorgos Earthquake from 4.9 to 4.8 Magnitude

Earthquake of 4.9 magnitude in Amorgos

New landslide in the bay of Athinios in Santorini

Earthquake of 4.6 magnitude in Amorgos

Synolakis: One possible scenario is that the seismic activity originates from a volcano

“There are three different possibilities, scenarios,” said Kostas Synolakis, Professor of Natural Disasters at the Technical University of Crete and academician, speaking on Proto Programma. His remarks came in response to the dozens of new seismic tremors recorded overnight in the underwater area between Santorini and Amorgos.

Mr. Synolakis explained, “One possibility is that a fault has been activated, something similar to the fault that caused the major earthquake of 1956—essentially a continuation of that fault. That earthquake reached a magnitude of 7.5. However, if an earthquake occurs now, I don’t think anyone expects it to be that strong. So that is the first scenario. The second scenario is that the volcanic system within Santorini’s caldera has been activated. The third scenario involves an underwater volcano called Kolumbo, which is located slightly north of Santorini, about 5 to 8 kilometers from its northern tip, in the direction of Ios. That is where the underwater Kolumbo volcano is situated. These are the three scenarios and their potential consequences, which are currently under examination in the area.”

Seismic activity in the last 24 hours

The meeting of the Earthquake Risk Assessment and Monitoring Committees of the Hellenic Volcanic Arc, in the presence of Kikilias

The meeting of the Earthquake Risk Assessment and Monitoring Committees of the Hellenic Volcanic Arc, with the presence of Minister of Climate Crisis and Civil Protection, Vasilis Kikilias, is currently underway. The meeting is discussing the increased seismic activity in the marine area between Santorini and Amorgos.

It is noted that earlier, two 112 messages were issued. The first warned the residents of Santorini about the risk of landslides, emphasizing that access is prohibited to the areas of Ammoudi, Armeni, and the Old Port of Fira in Thira. The second message warned of prolonged seismic activity in the broader area of Ios, Amorgos, Thira, and Anafi, urging citizens to remain on alert.

New earthquake of 4.4 Richter in Amorgos

Video and photos of landslides in Athinios Bay, Thira

New 112 Alert for Ios, Amorgos, Anafi, and Santorini: Stay on Alert

Mitsotakis: We are managing an intense phenomenon – Islanders should remain calm

Prime Minister Kyriakos Mitsotakis addressed the seismic activity occurring in the Santorini region when asked about it upon his arrival at the European Council Summit in Brussels.

“We are dealing with a very intense geological phenomenon. I want to ask the islanders to remain calm and to follow the instructions of Civil Protection,” the prime minister said.

He also noted, “I have requested the relevant ministry to provide a scientific presentation on the phenomenon in the coming days so that everyone understands what we are facing.”

Panic in the Alleyways After the 112 Alert

Panic broke out in the alleyways of Santorini following the 112 emergency alert announcing restricted access to three areas.

Both locals and tourists rushed out of their homes in terror as soon as they received the message. Speaking to protothema.gr, they said they were not used to receiving alerts from 112, and this startled them.

Santorini Engineers Recommend Halting Construction Work on the Island

The Association of Engineers of the Thira Province has issued a statement recommending the suspension of all construction work across the province for as long as the increased seismic activity persists.

As they explain, the recent earthquake activity further heightens the already elevated risk in all construction sites. Work carried out at heights, on scaffolding, near excavation slopes, and in similar settings poses a serious danger to workers during an earthquake. For this reason, they strongly advise halting such activities at this time.

Skordilis: We don’t know if we are at the peak of seismic activity

The intense seismic activity observed in Santorini over the past few days is extremely serious, according to scientific models, said Professor of Seismology at the Aristotle University of Thessaloniki, Manolis Skordilis. He noted that the activity has occurred in an area where earthquakes exceeding 7.0 Richter have taken place in the past, with a notable example being the 7.3-magnitude earthquake in Amorgos on July 9, 1956.

Speaking to the radio station of the Athens-Macedonian News Agency, “Praktoreio 104.9 FM,” Skordilis pointed out that public concern is understandable, as hundreds of tremors have been recorded in the region over the last 48 hours. “It seems that a seismic fault has been activated, and it is quite large, capable of producing an earthquake above 6.0 Richter. The activity has been persistent and intense for two days, with many earthquakes over 4.0 Richter. It has characteristics of a seismic swarm, but what is concerning is that the affected area is large and has a history of strong earthquakes,” the professor explained.

He also emphasized that, unlike in other cases, seismologists cannot yet rule out an adverse development or confirm that one of the tremors recorded so far is the main earthquake. “At this moment, we do not have a main earthquake. We are seeing seismic activation in a relatively large area with a problematic history, and we do not know how it will evolve,” he stated.

However, Skordilis clarified that the seismic sequence is not related to the island’s volcano, though he did not rule out the possibility of a tsunami if a strong earthquake occurs. “The seismic sequence is not connected to the volcano, which is inside the caldera. We are dealing with tectonic earthquakes occurring along a known active fault. There is no indication or evidence linking the two. On the other hand, if a submarine earthquake above 6.0 Richter occurs, there is a possibility of a tsunami. Let’s not forget that the last earthquake on this fault in 1956 had a magnitude of 7.3 and caused a massive tsunami,” he concluded.

Tselentis: The phenomenon is intensifying, and in all likelihood, we are experiencing a foreshock sequence

In a post, seismologist Akis Tselentis notes:

The phenomenon is continuing with greater intensity, and in all likelihood, we are dealing with a FORESHOCK SEQUENCE.

The authorities need to take more measures and STOP BROADCASTING PUBLICLY that they have sent tents (allegedly for the EMAK rescue team to stay in), dogs, specialist rescuers, expert doctors, etc.

Nowhere in the world are such actions made public because they create panic among the people.

They are blowing this serious issue out of proportion (perhaps to cover up something else that recently sparked nationwide outrage?). Let’s not throw dust in people’s eyes.

On the other hand, official reports state that, at most, we might see a 5.0–5.5 Richter earthquake, which wouldn’t affect the island! But just last night, we had a 4.9. These claims don’t hold up if we consider the scale and history of the faults involved. We’re talking about human lives here, not hotel investments…

As of yesterday, I decided not to follow the endless cycle of media sensationalism (despite the countless invitations I received from the press, and I thank them for the honor), but I can’t stand watching every unqualified individual expressing personal opinions just to get their one minute of fame.

There are responsible institutions that should be consulted through their official representatives.

To the point:

Residents should avoid homes that are structurally unstable, either due to poor construction or location (e.g., buildings on unstable slopes).
This applies to the neighboring islands as well.
The municipality was right to designate evacuation areas, BUT RESIDENTS MUST BE INFORMED about them.
As I mentioned before, BE CAUTIOUS NEAR THE COAST in case of a tsunami. SIGNAGE MUST BE PLACED WITH CLEAR INSTRUCTIONS ON WHERE PEOPLE SHOULD SEEK REFUGE if a tsunami occurs. I have already outlined what should be done in such a case in previous posts.
The well-known measures to reduce seismic risk must be implemented without exception.
Areas around and below unstable slopes should be restricted.

Of course, EVERYTHING ANNOUNCED BY THE EXPERIENCED SEISMIC AND VOLCANIC HAZARD COMMITTEE, which consists of internationally renowned and highly experienced scientists, must also be followed.

Regarding whether this activity is linked to the volcano, I have one thing to say: Could it be? When magma rises and increases stress on fault zones, some local faults become active, which then, through a domino effect, trigger others. Did you read what foreign seismologists said yesterday? Either way, volcanoes are active—no matter how much some people would like them to be asleep…

I HOPE I AM PROVEN WRONG!

New earthquake of 4.7 Richter on Amorgos

Director of the Geodynamic Institute: 20 earthquakes over 4 Richter on Santorini

As Mr. Karastathis mentioned on SKAI shortly after 10 AM, 550 earthquakes have been recorded and analyzed over the past 10 days.

Of these, 185 were above 3 in magnitude, making them noticeable.

Earthquake of 4.9 Richter in Amorgos

Ganas: Measures are being taken for all possible scenarios – No need for panic.

“Either we will have a swarm of earthquakes, meaning magnitudes of around 4.5 to 4.7 at most, like last night at 7:45 PM, or we will have a larger seismic event that could trigger a tsunami and possibly a volcanic eruption. So we are preparing for these scenarios,” said Thanas Ganas, Director of Research at the Geodynamic Institute of Athens, speaking on the First Program. He participated in yesterday’s meeting under the Prime Minister.

“We still don’t know how this sequence will evolve off the coast of Santorini, and between the island of Santorini and Anydros, so we need to wait and see how the phenomenon develops,” noted Mr. Ganas. However, he emphasized that readiness for the worst-case scenario is necessary, and therefore, all efforts from the government and scientists are focused on preparing the state to handle a worst-case scenario, which includes the activation of the volcano.

Two earthquakes of magnitudes 4 and 4.3 occurred within six minutes in Anafi and Amorgos

“Every 5-10 minutes, we hear a buzzing sound and then an earthquake,” says the Deputy Mayor of Anafi.

On Monday morning, the Deputy Mayor of the island spoke about the difficult times they are going through in Anafi, following the continuous earthquakes that have raised concerns among experts. He described that “we hear a buzzing sound and then shaking; every 5-10 minutes, we experience an earthquake.”

“Especially last night, there was a two-hour period where we heard buzzing every 1-2 minutes,” he added.

However, Sophocles Kolyda noted, “We are staying calm,” adding that “we have better rock formations than Santorini.”

Mayor of Thira (Santorini): Terror and panic are not good advisors
Terror and panic are not good advisors, emphasizes the mayor of Thira, Nikos Zorzos.

18 earthquakes above 4 Richter in the last 24 hours in Santorini.

Director of the Geodynamic Institute: The sequence of earthquakes is moving away from Santorini

Regarding the seismic activity in the Cyclades, the Director of the Geodynamic Institute, Vassilis Karastathis, emphasized:

“The sequence continues with unabated intensity. We had one earthquake in the evening and one in the morning, both above 4 Richter.

The sequence is moving away from the island of Santorini towards the northeast. When the sequence began, it was close to the island, but now it is moving further away.

As the distance increases, the likelihood of significant damage from anything decreases.

As this happens, the concern regarding the effects of the earthquakes on Santorini is diminishing.”

10 Earthquakes After Midnight

Ten seismic tremors have been recorded in the past hour in the underwater area between Santorini and Amorgos, with the strongest measuring 3.9 on the Richter scale.

Departing by Ships and Planes from Santorini

Passenger traffic on ferries is increasing after the 4.7-magnitude earthquake struck off the coast of Santorini at 7:30 PM on Sunday. The Blue Star CHIOS is carrying 1,100 passengers and will head to Piraeus in the early morning hours. The majority of passengers are of Albanian descent. Workers and hotel staff have already left the island.

Many of those fleeing Santorini fear a potential tsunami.

Earthquakes of 4.0 and 3.8 Magnitude Strike Off Amorgos After Midnight

A 4.0-magnitude earthquake on the Richter scale was recorded 22 minutes after midnight on Sunday off the coast of Amorgos.

According to the Automatic Solution of the Geodynamic Institute, the epicenter of the tremor was located 24 km south-southwest of Arkesini, Amorgos, with a focal depth estimated at 10 km.

A few minutes earlier, at 00:05, a 3.8-magnitude earthquake on the Richter scale had struck the same area.

Residents Fear Ongoing Seismic Activity – “I Chose to Sleep in My Car Tonight, the Tremors Are Quite Strong”

The seismic activity has sparked concern, as Santorini lies in a highly earthquake-prone region, and residents are always mindful of the island’s volcanic nature.

“I chose to sleep in my car tonight because, to be honest, I’m scared—the tremors are quite strong,” a local resident told protothema.gr.

Schools to Remain Closed on Monday in Santorini, Amorgos, Paros, Antiparos, and Naxos

Schools in Santorini, Amorgos, Paros, Antiparos, and Naxos will remain closed on Monday following a decision by the islands’ mayors as a precautionary measure due to increased seismic activity in the Cyclades.

The decision applies to all educational institutions across the islands, including preschools, kindergartens, and daycare centers.

Schools closed in Antiparos
Schools in Antiparos are closing due to the ongoing seismic activity in the surrounding area, as announced by the mayor of Antiparos, Anastasios Faroupos.

“Due to the increased seismic activity in the maritime area between Thira and Amorgos, by the decision of the Mayor, for precautionary reasons, all levels of schools in Antiparos will be closed tomorrow, Monday, February 3, 2025,” he stated in a Facebook post.

New earthquake of 3.8 magnitude
A new earthquake of 3.8 magnitude struck Santorini at 10:14 PM.

According to the revised data from the Geodynamic Institute, the earthquake’s focal depth is estimated to be 12.9 kilometers, with its epicenter located 27 kilometers north-northwest of Anafi.

Chaos outside central travel agency
A massive crowd has gathered outside a central travel agency on the island at 9:30 PM, as panic sets in.

In dramatic footage from protothema.gr, desperate citizens scramble to secure tickets, desperately trying to flee Santorini, either by ferry or plane, as uncertainty and fear grip the island.

Airline tickets are selling out – One-way tickets are priced at 200 euros
A commotion has broken out among the residents of Santorini, who are trying by any means to leave the island.

Due to the high demand, only a few seats remain for tomorrow on Aegean and Sky Express flights, with one-way tickets averaging 200 euros.

Queues Outside Santorini Travel Agencies

Long queues have formed outside the travel agencies in Santorini.

The meeting at the Maximos Mansion has concluded
A statement from the Minister of Citizen Protection is expected, regarding the intense seismic activity in the Cyclades.

The message being sent from the Maximos Mansion is that all involved authorities are on alert and prepared.

Meeting at Maximos Mansion underway

A meeting is currently underway at Maximos Mansion to address the recent seismic activity in Santorini. The discussion, led by Prime Minister Kyriakos Mitsotakis, includes Minister of Civil Protection Vasilis Kikilias, President of the Earthquake Planning & Protection Organization (OASP) Efthymios Lekkas, Professor of Geophysics at Aristotle University of Thessaloniki Kostas Papazachos, and Chief of the Hellenic National Defense General Staff Dimitris Choupis.

Also present at the meeting are Athanasios Ganas, Director of Research at the Athens Geodynamic Institute, Kostas Synolakis, Professor of Natural Disasters, and Deputy Minister of Civil Protection Vangelis Tournas.

Many Santorini Residents Rush to Travel Agencies to Leave the Island

It appears that many residents are planning to leave Santorini following the intense seismic activity that has been occurring on the island.

As seen in photos from protothema.gr, numerous residents are rushing to travel agencies to secure ferry tickets in order to leave the island.

New 4.7-magnitude earthquake

A new strong earthquake measuring 4.7 on the Richter scale struck with an epicenter 22 km south-southwest of Arkesini, Amorgos, according to the revised report from the Geodynamic Institute.

24-hour sailing ban for fishing boats in Santorini

Local Civil Protection authorities in municipalities near the epicenter of the seismic activity are updating emergency response plans to keep the public informed.

24-hour sailing ban for fishing boats in Santorini

Skordilis: The area is capable of producing an earthquake above 6.0 Richter

The area where the earthquakes are occurring is capable of producing a quake greater than 6.0 on the Richter scale, stated Professor of Seismology at the Aristotle University of Thessaloniki, Manolis Skordilis, speaking to Alpha.

“We are not reassured—quite the opposite,” he said, reminding that the region has a long history of seismic activity, with the most notable example being the 1956 earthquake, which exceeded 7.0 on the Richter scale and caused extensive damage and a tsunami.

“The affected area is large enough to justify the occurrence of a stronger earthquake, though that is not a certainty,” he noted, emphasizing the need for precautionary measures.

According to Skordilis, the phenomenon is not easing with the multiple tremors. Instead, they indicate that the region is in a state of excitation, requiring vigilance.

In any case, the seismology professor stressed that the earthquakes are unrelated to the volcano, as they are occurring along a known fault. He explained that the mechanisms triggering an earthquake in a volcanic system are entirely different.

Continuous seismic activity – Three earthquakes in six minutes

Intense seismic activity continues in Santorini, with three earthquakes over 3.0 on the Richter scale occurring within just six minutes.

Specifically, a 3.3-magnitude earthquake struck at 18:58. At 19:02, a new 3.4-magnitude tremor was recorded, followed by another at 19:04, measuring 3.6 on the Richter scale, according to the automatic readings of the Geodynamic Institute.

Turkish Professor Warns: Three out of the four signs of a volcanic eruption have occurred in Santorini

The Turkish Geophysics Professor, Övgün Ahmet Erçan, has spoken out about the seismic activity taking place in Santorini in recent days and the concerns raised about the island’s volcano.

In a post on X, he writes: “In the science of Geophysics, the following signs indicate a volcanic eruption:

Shallow earthquake and storms of microquakes
Gas emissions
Noises from the ground
Ground swelling

Three of these signs have been recorded in Santorini. However, even if these signs are present, the eruption may not occur.

In some cases, it may be delayed for a week, a year, or may never happen at all. Santorini has experienced volcanic eruptions in the 16th century and in 1600 BC.

Similar geophysical signs are also observed in Turkey, in the volcanoes Tendürek and Ararat.

The first tents have been set up in open spaces in Santorini.

Instructions from the Municipality of Amorgos in Case of Earthquake and Tsunami

The Municipality of Amorgos has issued new guidelines for residents, providing information on the measures taken in the event of a strong earthquake or tsunami.

Official Announcement from the Municipality

Following our previous updates and in accordance with Decision No. 1/2025 of the Local Coordination Body for Civil Protection of the Municipality of Amorgos, as well as today’s meeting at the Ministry of Climate Crisis and Civil Protection regarding the increased seismic activity in the Amorgos-Santorini area:

Designated Assembly Points by Settlement in Case of Emergency:
1. Chora Amorgos:
  - Large parking area before the helipad
  - Kalogeriko field-parking area
2. Katapola:
  - Parking area near the olive press and DEH in Rachidi
  - Pera Rachidi
3. Ormos & Potamos Aegialis:
  - The Transport Agencies area before the Tholaria-Lagkada intersection
4. Tholaria:
  - Tholaria Square
5. Lagkada:
  - Kaminaki Parking
  - Upper Square Parking
6. Kamari:
  - Children’s Playground
7. Vroutsi:
  - “Giorgalini” Parking
8. Kolofana – Kalotaritissa:
  - Courtyard of Agia Paraskevi (Parking)
9. Arkesini:
  - Square at the Cooperative (Distrata) & Rachoula Square

Precautionary Measures:

Sunday, 02/02/2025 & Monday, 03/02/2025: Residents are advised to remove their vehicles from the land areas of the ports of Katapola and Aegiali, as well as the coastal roads of these areas.
Fishing and Recreational Boats: All vessels should remain docked for the next 24 hours and should not set sail.
Movement Restrictions: Avoid unnecessary movement, especially near unstable or dilapidated buildings and coastal areas, particularly on the southern beaches and Kalotaritissa Beach, which is closest to the seismic zone.

In Case of Tsunami:

You will be notified via Civil Protection alert (112) and church bell tolls.
If you are in a low-lying coastal area:
- Not all earthquakes cause tsunamis, but remain alert.
- Watch for a significant rise or fall in water levels, as this is a natural warning sign.
- Move away from the sea and head inland to higher ground. A small tsunami in one area can grow significantly as it travels.
- Stay away from the coast. A tsunami is not a single wave but a series of waves—return only after authorities confirm it is safe.
- Do NOT approach the shore to watch the tsunami. If you can see it coming, it may already be too late to escape.

Attached: Today’s press release from the Ministry of Climate Crisis and Civil Protection.

Emergency Contact Numbers:

Health Center: 22850 71207
Port Authority: 22850 71259
Police: 22850 71210
Fire Department: 22850 32899
Civil Protection Contacts:
- Simos Stamatis: 6932473001
- Kostas Grispas: 6936659080

Preparations Underway in the Armed Forces for Santorini

The Chief of the Hellenic National Defence General Staff, Dimitrios Choupis, was present at the government meeting. According to sources, the outcome of the meeting will determine the type of support the Armed Forces will provide moving forward.

United Kingdom: Travel Advisory for Seismic Activity in Greece

The UK Foreign Office has issued a travel advisory regarding seismic activity in Greece.

As stated in the advisory: “The Greek Ministry of Civil Protection has issued guidance for Santorini (Thira) and Amorgos following increased seismic activity in the area. Schools will remain closed on Monday, February 3, 2025, while citizens are advised to avoid large gatherings in enclosed spaces and to stay away from the ports of Ammoudi and the Old Port (Paleos Limenos) in the Fira area.”

Lekkas On-Site Inspection: What He Says About the Earthquakes – Recommendations for Citizens

Authorities remain on high alert as intense seismic activity continues in the Cyclades.

Professor of Disaster Management at the National and Kapodistrian University of Athens (EKPA), Efthymios Lekkas, arrived in Santorini on Sunday afternoon to conduct an on-site inspection of the area.

Citizens are advised not to stay in old buildings, to avoid approaching the coastline in case of a strong tremor, to remain calm, and to follow the instructions of the authorities.

Instructions to Boat Owners to Stay on Alert

The intense seismic activity recorded in Santorini in recent days, along with the extension of precautionary measures to the neighboring islands of Amorgos, Anafi, and Ios, has put authorities on heightened alert.

According to reports, local port authorities have notified boat owners to remain prepared in case an evacuation of Santorini becomes necessary.

New 4.1-Magnitude Earthquake Near Amorgos

Over 380 Earthquakes Recorded Between Santorini and Amorgos Since January 24

More than 380 earthquakes have been recorded in the marine area of Anydros, between Santorini and Amorgos, since January 24, according to V. Karastathis, Director of the Geodynamic Institute of the National Observatory of Athens.

“The region experiencing seismic activity has significant tectonic structures, making it a high-potential seismic zone. Since January 24, there has been a considerable increase in seismicity, with over 380 recorded earthquakes so far. Of these, 85 have exceeded a magnitude of 3,” Karastathis stated. He also noted that in the past 24 hours alone, 10 earthquakes over magnitude 4 have occurred, with the strongest reaching 4.6.

“This data compels us to remain cautious. We cannot provide reassurances at this stage. The Geodynamic Institute is closely monitoring the phenomenon, analyzing all aspects of the sequence,” he added. To enhance monitoring, two additional seismic stations will be installed tomorrow on the nearby islands of Amorgos and Anafi. The Institute has increased staff shifts and is analyzing data multiple times daily.

Karastathis clarified that the earthquakes are of purely tectonic origin. While earlier concerns linked the activity to volcanic unrest due to microseismicity detected within the Santorini Caldera, the ongoing seismic events between Amorgos and Santorini are strictly tectonic.

When asked about a possible connection to the 1956 Amorgos earthquake, Karastathis cautioned against making such comparisons. “Linking this activity to past earthquakes is risky, as historical seismic data lacks the precision needed for such correlations. Back then, seismic stations were scarce, and available tools were limited. Even the depth of the 1956 earthquake remains debated—whether it was shallow or deep.”

Regarding precautionary measures, Karastathis emphasized that the Ministry of Civil Protection responded swiftly. “From the first hours of this seismic activity, the Minister and top officials have been receiving continuous updates. Daily reports outline both the evolving seismic situation and the necessary protective measures for the public.”

Kostas Papazachos Explains Why Pools in the Caldera Are Being Emptied

Kostas Papazachos spoke to protothema.gr about the ongoing seismic activity and explained why pools in the Santorini Caldera are being emptied.

“The seismic activity continues with the same intensity, with many earthquakes around 4-4.5 magnitude. It has not decreased at all, and it seems that the precautionary measures will remain in place due to the ongoing situation. We are working to improve the monitoring center. Tomorrow, a seismograph will be installed on Anydros, and additional stations will be set up in Anafi and Amorgos to provide more accurate data. The seismic sequence remains challenging, requiring vigilance from residents, experts, and the Greek authorities alike,” Papazachos stated.

Regarding the possibility of a larger earthquake, around magnitude 5.5, he said: “Speculation like this exists in every seismic sequence. People should ignore rumors and rely only on official announcements. Every day, there will be such reports, but they should not be taken seriously as they are not real news, just unfounded rumors.”

Explaining the decision to empty pools in the Caldera, Papazachos said: “It’s simply a precautionary measure due to strong ground oscillations during significant earthquakes, which could add stress to the slopes and cause failures. Large bodies of water have their own natural oscillation, which could become a risk factor during a seismic event. Since it’s winter, this measure is being taken proactively to prevent potential problems.”

Fire Department on High Alert – All Actions Taken

Due to the increased seismic activity in the marine area of Anydros, between Thira and Amorgos, the Fire Department has undertaken the following actions:

The South Aegean Regional Fire Administration (PEPYD) has been placed on full alert. The Regional Commander has traveled to Thira to lead firefighting forces on the ground.
Yesterday, an emergency flight (ATR) transported an EMAK rescue team with a search-and-rescue dog and two EMODE teams to Santorini.
Today, a Bell helicopter arrived in Santorini carrying a drone operations team with their equipment, as well as aerial rescue personnel.

Scenario of a 6.0-Magnitude Earthquake Considered by Scientists

The worst-case scenario being examined by scientists is an earthquake with a magnitude of 6.0. According to experienced researcher Mr. Vougiouklakis, the seismic activity in the area is both volcanic and tectonic, linked to the active fault stretching from Amorgos to the Christiana islets. Current calculations indicate that an earthquake should not exceed 6.0 in magnitude, with a low probability of causing widespread damage.

“Newer buildings constructed according to the current anti-seismic regulations will not face serious issues. However, older structures are more vulnerable. A 6.0-magnitude earthquake is not expected to have catastrophic consequences,” Mr. Vougiouklakis emphasized.

Although the phenomenon is being closely monitored, scientists reassure the public that there is no immediate risk of volcanic activity. “The Santorini volcano is in a mild state of unrest, while Kolumbo is considered inactive,” the expert noted.

Ask me anything

Explore related questions

> Greece