The high-resolution imagery revealed a lava lake measuring between 90 to 215 meters in diameter, and molten lava temperatures ranging from 989 to 1,279 degrees Celsius (1,812 to 2,334 degrees Fahrenheit). “We are delighted to have discovered such a remarkable geological feature in the British Overseas Territory,” said BAS geologist and study co-author Alex Burton-Johnson. “Identifying the lava lake has improved our understanding of the volcanic activity and hazard on this remote island, and tells us more about these rare features, and finally, it has helped us develop techniques to monitor volcanoes from space.
Image: Pete Bucktrout (British Antarctic Survey). “Mount Michael is a volcano on a remote island in the Southern Ocean,” said study lead author Danielle Gray from University College London in a press release. “It is extremely difficult to access, and without high-resolution satellite imagery it would have been very challenging to learn more about this amazing geological feature.
Satellite images have confirmed the presence of a persistent lava lake within the crater of Mount Michael—an active volcano located on a remote island in the Southern Ocean.