Weekly Seismicity Report For May 30, 2022 to June 5, 2022

During the week of May 30, 2022, the Alaska Earthquake Center reported 866 earthquakes within the state. The largest earthquake was magnitude 6.3 that occurred on June 4 at 15:38:09 AKST (June 4, 23:38:09 UTC), 7 miles SW of Davidof Island.  This event was followed by 55 aftershocks.  Two other events of note were a M5.2, 26 miles S of Herbert Island and a M 5.0, 42 miles SE of Mt. Gareloi.  All other events greater than 3.5 occurred along the subduction zone, except for a M4.1, 28 miles S of Kantishna, and a M3.9, 7 miles NE of Chugiak.  Areas of ongoing seismicity included the swarm activity in the Purcell Mountain Region, as well as aftershocks in the Kaktovik, offshore Kodiak, and Simeonof-Chignik Zones.  29 icequakes were recorded in Prince William Sound, Icy Bay, Yakutat, Glacier Bay, and Southeast.  Three events were reported as felt.

Notable Events in Descending Order of Magnitude

Magnitude 6.3, 7 miles SW of Davidof Island, June 4 15:38:10 AKST
Magnitude 5.2, 26 miles S of Herbert Island, June 2 15:26:02 AKST
Magnitude 5.0, 42 miles SE of Mt. Gareloi, May 31 06:41:39 AKST
Magnitude 4.9, 82 miles SE of Chignik, June 2 13:41:54 AKST
Magnitude 4.7, 28 miles S of Amchitka, June 1 22:30:40 AKST
Magnitude 4.5, 5 miles S of Davidof Island, June 4 17:53:15 AKST
Magnitude 4.4, 97 miles SE of Chignik, June 2 11:02:55 AKST
Magnitude 4.3, 30 miles S of Amchitka, June 2 10:43:19 AKST
Magnitude 4.3, 49 miles SE of Sand Point, June 3 18:19:38 AKST
Magnitude 4.3, 3 miles S of Little Sitkin Pass, June 4 16:25:54 AKST

This report was compiled by K. Becker

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 damage resulting from its authorized or unauthorized use.