New 4.5-Magnitude Earthquake

A new earthquake measuring 4.5 on the Richter scale struck Santorini at 20:34.

According to the revised solution from the Geodynamic Institute, the earthquake had a focal depth of 13.9 kilometers, with its epicenter located 25 kilometers south-southwest of Arkesini, Amorgos.

4.2-Magnitude Earthquake

The earthquake occurred 15 km south-southwest of Arkesini, Amorgos.

Gerasimos Papadopoulos: “Turkey and Israel Are Right to Stay on Alert”

The seismic sequence continues, but there is a glimmer of optimism regarding its progression, stated Gerasimos Papadopoulos on Mega. He added, “It seems likely that each 5.0-magnitude quake has its own aftershocks.”

When asked about the validity of concerns expressed by scientists from Turkey and Israel, Papadopoulos said that “they are right to stay on alert,” as similar tsunami events have occurred in the past at distances that match the current situation affecting the two neighboring countries. He noted, “A potential tsunami could reach Turkey within 45 minutes.”

Inspection of School Buildings in Santorini: No Cracks Found

The structural assessment of all school buildings in Santorini has been completed, with reassuring results. According to the Municipality of Thira, a team of eight engineers conducted inspections on all school facilities in the area and found no structural deficiencies.

“School Buildings Are in Excellent Condition”

The Director of Disaster Management for Building Infrastructure (KTYP), Theodoros Iliopoulos, stated that school buildings in Santorini are in excellent condition, with no detected cracks—not even hairline fractures, which are common in ongoing seismic activity.

30 Families from Santorini Sheltered in Athens Municipality Camps

University of Athens (EKPA): Over 15,300 Earthquakes Recorded in Santorini Since January 26 – Seismic Activity Migrating Northeast

Over 15,300 earthquakes have been recorded in the Santorini-Amorgos zone from January 26 to February 10, according to the Interdisciplinary Risk and Crisis Management Committee of EKPA.

On February 10 alone, more than 1,200 earthquakes were recorded. The committee found that seismic activity is migrating northeast, possibly shifting to a different fault segment, with epicenters east of Anydro. The strongest quakes occurred north of Anydro.

Two earthquakes measuring 4 on the Richter scale and above

After the 5 on the Richter scale earthquake off Santorini at 03:14 in the early hours of Wednesday, two more of 4R and above followed within a few minutes.

The first at 03:35 was a 4R with an epicenter 24 km south southwest of Arkesini, Amorgos and with a focal depth of 17.1 km.

5 Richter Earthquake Off Santorini

A 5 Richter magnitude earthquake occurred at 03:14 on Wednesday morning, two minutes after a 3.9R earthquake.

According to the Geodynamic Institute’s Automatic Solution, the epicenter of the earthquake was located 23 km north-northwest of Anafi and the focal depth was estimated at 5 km.

Seismic Activity Remains Stable, Safety Measures Unchanged, Says Committee

Seismic activity in the Santorini-Amorgos region remains at the same levels, according to Kostas Papazachos, spokesperson for the Seismic Risk Committee.

Over 1,100 earthquakes above magnitude 3.0 have been recorded since February 1.
A slight shift in epicenters towards Amorgos has been observed, but this is considered normal.
Activity within the Santorini caldera remains unchanged, as previously reported in late January.

Precautionary Measures Remain in Place

The Committee urges residents to follow safety guidelines:
Avoid gatherings in enclosed spaces
Use safe routes for movement
Stay away from landslide-prone areas

Schools in Santorini, Anafi, Amorgos, and Ios will remain closed this week.

Initial inspections of public buildings indicate they are structurally sound.

The next Committee meeting is scheduled for Saturday.

Meeting of seismic risk and Greek volcanic arc monitoring committees concludes

Dimitris Papanikolaou: Earthquakes in Santorini Could Last for Weeks or Even Months

Professor Emeritus of Geology at the University of Athens, Dimitris Papanikolaou, stated that optimism regarding the ongoing seismic activity is not justified, although he ruled out the possibility of an immediate conclusion to the phenomenon.

“Optimism is not justified. This is a process expected to unfold over weeks or even months,” he said in an interview with ALPHA.

“We will likely see fluctuations in both earthquake magnitude and frequency. The recent 5.3-magnitude quake confirms that we are still within the same seismic pattern that has persisted for the past ten days, and it appears this will continue for several weeks, possibly even months.”

“Don’t Be Afraid” – Message from a Worker Who Stayed in Santorini

She works on the island and chose not to leave, as she says she continues her daily life and goes to work despite the ongoing earthquakes. “We’ve had a few earthquakes, but we’re not afraid; we’re working as usual, coming to our jobs. I don’t know if anyone is scared, but don’t be afraid,” she says.

Reinforcements for the Telephone Network in Amorgos – Fire Department Vehicle Arrives on the Island

OTE equipment to boost signal strength and ensure stable internet access arrived in Amorgos on Tuesday, according to CycladesLive. Additionally, a fully equipped fire department vehicle with a generator has reached the island.

A Red Cross team is already stationed there as a precaution.

A Birth Amidst Earthquakes in Santorini

A healthy baby boy was born in Santorini on Tuesday while the island continued to experience frequent seismic tremors. Despite the intense activity that led thousands to leave, the family decided to stay.

Deputy Health Minister Marios Themistocleous, who was on the island, visited the mother and baby to offer his best wishes.

Synolakis: The Three Possible Scenarios for Santorini

There are three potential scenarios regarding the increased seismic activity in Santorini, said Professor of Natural Disasters Kostas Synolakis in a statement.

Speaking on Mega on Tuesday, he explained that the best-case scenario is for the earthquake swarm to subside, as it did in 2011-2012.

At least five more noticeable earthquakes were recorded overnight in the sea area south of Amorgos and Santorini, the strongest of which was of magnitude 5 on the Richter scale, according to data released by the Geodynamic Institute of the National Observatory of Athens.

The earthquakes, three of magnitude 4, one 4.1 and the strongest 5 degrees on the Richter scale, were recorded in reverse chronological order at 05:47, 02:02, 00:51, 00:44 and 00:37, according to the same source. Their epicenter was located in the sea area between 16 and 18 kilometers south of Arkesini Amorgos, always according to the institute’s data. Except for the one with a magnitude of 5 degrees at 00:37, considered “strong”, all were classified as “weak”.

It is recalled that at 22:16 yesterday, Monday, the strongest tremor of the seismic sequence so far occurred in the Cyclades region, measuring 5.2 degrees on the Richter scale.

Karastathis: The phenomenon continues as normal

Speaking to SKAI on Tuesday morning, the deputy director of the Geodynamic Institute, Vassilis Karastathis, said that “we do not believe that anything is changing as we believe that we have a swarm series. The 5.3 is not different from the 5.2 we had a few days ago. I wouldn’t say we should dwell on the magnitude but as a phenomenon that continues as normal.”

According to him, the 5.3 magnitude on Monday night “was within the range of the clusters we are monitoring” adding that “and the rate remained constant as we had 28 earthquakes a day above 4 magnitude and now we have 13-14 earthquakes of that magnitude per day.“

“So we are in the same situation, we don’t have a decrease, we have stabilization, we are cautious to say that the seismicity has dropped, hopefully we will have further decrease. There is always the risk of a bigger earthquake,” concluded Vassilis Karastathis.

Tselentis: We still have a long way to go

For his part, seismologist Aki Tselentis in a Facebook post on Tuesday morning assessed that “continue to be careful. We have a long way to go.”

“In special cases like this one, we cannot rest on our laurels by adopting classical seismological models,” Tselentis added.

Gerasimos Papadopoulos: The small crack of optimism is closed

In a post by seismologist Gerasimos Papadopoulos after earthquake of 5.3 Richter that occurred on Monday night between Santorini and Amorgos, he said that, “another strong earthquake in Santorini 5.3 from the Geodynamic or 5.2 from the Euro-Mediterranean Center. It closed the small crack of optimism.“

The renowned seismologist changed the statements he had made earlier on Monday in which he declared slightly optimistic and spoke of a “crack of optimism“.