Weekly Seismicity Report For May 11, 2020 to May 17, 2020

During the week of May 11, 2020, the Alaska Earthquake Center reported 914 earthquakes within the state. The largest earthquake was magnitude 4.5 that occurred on May 16 at 21:26:31 AKST (May 17, 05:26:31 UTC), in Andreanof Islands, 95 km SSW of Nikolski, followed by aftershocks. A M4.2 was located 46 miles SW of Larsen Bay. Four earthquakes of M3.5-4.2 occured in western part of Aleutian Islands. Two events were felt.

Notable Events in Descending Order of Magnitude

Magnitude 4.5, 51 miles SE of Herbert Island, May 16 21:26:31 AKST
Magnitude 4.4, 58 miles SE of Herbert Island, May 16 08:06:50 AKST
Magnitude 4.2, 36 miles SE of Semisopochnoi Island, May 11 14:53:27 AKST
Magnitude 4.2, 30 miles S of Atka Pass, May 17 11:09:34 AKST
Magnitude 4.2, 47 miles SE of Mt. Cleveland, May 16 02:06:09 AKST
Magnitude 4.2, 33 miles SW of Karluk, May 16 20:18:50 AKST
Magnitude 4.2, 95 miles SE of Adak, May 14 22:51:24 AKST
Magnitude 4.1, 59 miles SE of Herbert Island, May 16 11:22:32 AKST
Magnitude 3.8, 199 miles W of Little Diomede, May 12 23:35:23 AKST
Magnitude 3.7, 60 miles S of Adak, May 11 17:54:20 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 authroized or unauthorized use.

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