(Map: UAF) Megathrust earthquakes, as the name suggests, are big. Since 1900, all earthquakes of magnitude 9.0 or greater have been megathrust earthquakes. Now, a study of two powerful earthquakes in adjacent areas off the Alaska Peninsula in 2020 and 2021 appears to...
One of the most prominent indications of seismic and volcanic activity in the region are volcanoes such as the one that forms Penguin Island. The well-known Deception Island is also part of it. But most volcanoes lie beneath the icy waters. (Photo: Dr Michael Wenger)...
The South Sandwich Islands are a chain of volcanic islands in the middle of the South Atlantic Ocean, at the end of the Scotia Arc. On the one hand, the islands are home to millions of penguins, but on the other hand, they are also in the midst of numerous earthquakes...
The ocean bottom seismometer was installed near the calving front of Bowdoin Glacier (Kangerluarsuup Sermia) near Thule in northwestern Greenland over a period of about two weeks. Photo: Evgeny A. Podolskiy, Hokkaido University Until now, seismologists considered...
Mount Erebus is the southernmost active volcano in the world. The 3’794 meter high stratovolcano is mostly surrounded by a cloud of steam, clear pictures of its top are rare. In the cone lies a lava lake almost 250 meters wide. The volcano itself is located on...
