Volcanoes can be found even off the coast of Antarctica. At the deep-sea volcano Orca, which has been inactive for a long time, a sequence of more than 85,000 earthquakes was registered in 2020, a swarm quake that reached proportions not previously observed for this region. The fact that such events can be studied and described in great detail even in such remote and therefore poorly instrumented areas is now shown by a new study. With the combined application of seismological, geodetic and remote sensing techniques, they were able to determine how the rapid transfer of magma from the Earth’s mantle near the crust-mantle boundary to almost the surface led to the swarm quake.
Title: A swarm of 85,000 earthquakes at the Antarctic Orca submarine volcano
Sourced From: www.sciencedaily.com/releases/2022/04/220413104151.htm
Published Date: Wed, 13 Apr 2022 10:41:51 EDT
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