It rises about 3,300 feet, has “relatively steep, smooth sides” and is rounded, with a diameter of nearly 3,000 feet, officials say
Geology
Journey to the center of the Earth
Lava has overflowed the caldera but does not pose a threat to populated areas at the moment, emergency officials said Monday, Nov. 28
The current record for the world’s deepest hole is the Kola borehole in the Arctic Circle, which measures 12.2km deep
The country’s most active volcano and one of the largest in the Russian far East recorded a volcanic ash plume rising up to around 13000ft altitude on Saturday
All indications point to the volcano beginning to erupt in mid-October when hydroacoustic sensors began to record signals consistent with such activity
Here's what scientists know about the Tonga volcano eruption
So what's down there?
These stunning patterns have an unlikely designer
Let's not forget that Yellowstone is the biggest supervolcano...