Reactivation of dormant Edgecumbe volcano, Alaska

Reactivation of dormant Edgecumbe volcano, Alaska

Researchers reporting in AGU’s Geophysical Research Letters show that the seismic swarm detected near Mt. Edgecumbe volcano in Southeast Alaska, U.S. in April 2022 was caused by magmatic activity taking place under this transform fault volcano previously considered dormant.

Earthquake swarm detected in the vicinity of Edgecumbe volcano, U.S.

Earthquake swarm detected in the vicinity of Edgecumbe volcano, U.S.

m of earthquakes has been detected in the vicinity of Mount Edgecumbe volcano, beginning at about 10:00 UTC on April 11, 2022. The cause of the swarm is currently unknown. A small number of earthquakes were also recorded in 2020 but this swarm is unusual in the number of events. The last eruption of this volcano was in 2220 BCE (± 100 years).