Monthly Seismicity Report For May 1, 2022 to May 31, 2022

During the month of May 2022, the Alaska Earthquake Center reported 4069 earthquakes within the state. The largest earthquake was magnitude 5.7 that occurred on May 17 at 22:27:55 AKST (May 18, 06:27:55 UTC), 31 miles S of Amchitka. All earthquake of magnitude 4.0 and greater were recorded along the subduction zone except a M4.2  55 miles NW of Elfin Cove on May 5, at 9:48pm AKST.  We continued to monitor ongoing seismic activity within Anchorage, offshore Kodiak and Simeonof-Chignik aftershock sequences as well as crustal seismic activity in the Brooks Range. About 120 icequake were recorded in Prince William Sound, Icy Bay and Yakutat Bay. 9 earthquakes were roported as felt.

Notable Events in Descending Order of Magnitude

Magnitude 5.7, 31 miles S of Amchitka, May 17 22:27:55 AKST
Magnitude 5.0, 42 miles SE of Mt. Gareloi, May 31 06:41:39 AKST
Magnitude 4.7, 29 miles S of Adak, May 5 14:58:42 AKST
Magnitude 4.5, 91 miles SE of Perryville, May 9 10:08:25 AKST
Magnitude 4.5, 50 miles S of Tanaga Volcano, May 13 07:26:14 AKST
Magnitude 4.5, 41 miles SE of Mt. Gareloi, May 23 03:29:20 AKST
Magnitude 4.4, 23 miles SE of Mt. Spurr, May 7 20:16:02 AKST
Magnitude 4.3, 22 miles SE of Iliamna Volcano, May 26 02:55:53 AKST
Magnitude 4.2, 140 miles SE of King Cove, May 4 04:12:32 AKST
Magnitude 4.2, 55 miles NW of Elfin Cove, May 15 21:48:42 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 damage resulting from its authorized or unauthorized use.