During the month of August 2022, the Alaska Earthquake Center reported 3643 earthquakes within the state. The largest earthquake was magnitude 5.3 that occurred on August 1, 00:36:39 (UTC), 52 miles S of Akutan.

All earthquakes of magnitude greater than 4.0 were recorded along the subduction zone except of a M4.2 event in Chukchi peninsula (Russia). We continue to monitor seismic activity within  Anchorage, offshore Kodiak, Simeonof-Chignik,  aftershock zones as well as crustal seismic activity in Brooks Range, Seward Peninsula and  Bering Strait. About 150 ice quakes were located in August, and about half of them occurred in Mt. Ogden in south-eastern Alaska. Others were recorded in Prince William Sound, Icy Bay and Yakutat Bay.  15 earthquakes were reported as felt.


Magnitude 5.3, 52 miles S of Akutan, July 31 16:36:39 AKST
Magnitude 5.2, 6 miles S of Segula Peak, August 14 06:43:39 AKST
Magnitude 5.1, 62 miles SE of Nikolski, July 31 20:08:19 AKST
Magnitude 4.8, 94 miles SE of Yantarni Volcano, August 16 18:00:18 AKST
Magnitude 4.6, 33 miles S of Chagulak Island, August 9 13:21:10 AKST
Magnitude 4.5, 47 miles SE of Akutan Pass, August 7 06:01:46 AKST
Magnitude 4.5, 14 miles SW of Amak Island, August 22 08:35:02 AKST
Magnitude 4.5, 140 miles S of Akhiok, August 30 10:18:09 AKST
Magnitude 4.5, 139 miles SE of Chignik, August 30 10:23:49 AKST
Magnitude 4.4, 39 miles S of Perryville, August 29 13:32:35 AKST

This report was compiled by N. Kozyreva

The data in this report are preliminary and subject to revision. The earthquake parameters have been determined by the AEC, with supplemental data provided by the USGS National Earthquake Information Center. The data are released on the condition that none of the cooperating agencies may be held liable for any damaged resulting from its authorized or unauthorized use.

For more information on earthquakes and seismology, contact the AEC at 907-474-7320.