On July 22nd, Alaska was the scene of last month’s largest earthquake, a Mw 7.8 earthquake that hit the Aleutian Islands, offshore the Alaska Peninsula. The hypocenter location, tectonic setting and focal mechanism suggest a megathrust earthquake. The hypocenter of the so called Simeonof earthquake is located at the western edge of the historical 1938 earthquake (M8.3) slip zone, near the Shumagin ...[Read More]
Earthquake of the month: Simeonof – Alaska M 7.8
Figure 1 | Recorded aftershocks two weeks after the M7.8 Simeonof earthquake (blue star). Yellow areas corresponds to historical earthquakes occurred along the Auletian trench. Credit: Alaska Earthquake Center (earthquake.alaska.edu)
