A long-dormant underwater volcano located near Antarctica may have erupted and caused about 85,000 earthquakes there.
In August 2020, research stations near the site reported a series of earthquakes.
These earthquakes peaked in August and lasted until November 2020, and now researchers are trying to figure out what exactly could have caused these earthquakes.
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The volcano caused these earthquakes?
An undersea volcano known as the Orca Seamount rises 2,950 feet above the sea floor and is located near King George Island in Antarctica in Bransfield Strait. The site is also home to the Phoenix tectonic plate, which, according to a 2018 study, is “deepening” under the Antarctic continental plate. This “dance of the plates” results in the formation of numerous fault zones in the area, which stretch the earth’s crust and open cracks; leads to such events.
Seismologist Simona Cheska from German Center for Geological and Geophysical Researchin Potsdam, said living science that similar invasions have taken place elsewhere on our planet. Cheska said that we were lucky to witness this phenomenon. These events usually occur ingeological time scales“, and not during the life of a person.
Researchers at the King George Island Research Stations used the data they collected in addition to the global navigation satellite system and were able to measure ground displacement. In doing so, they believe that the series of earthquakes was caused by the seamount Orka; earthquakes of magnitude 5.9 and 6.0 in October and November, respectively. Perhaps because of them, the earth broke through, and King George Island moved about 10 centimeters. Unfortunately, to confirm your data and be sure of the origin of earthquakes, you need to look at the bottom of the ocean.
The researchers’ findings can be seen in Communications Earth & Environment.
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Via: Live Science Source: Communications Earth & Environment