WEEK SEISMICITY REPORT FOR MAY 8, 2023 TO MAY 14, 2023

During the week of May 8, 2023, the Alaska Earthquake Center reported 809 earthquakes within the state. The largest earthquake was magnitude 5.0 that occurred on May 13 at 12:19:48 AKDT (May 13, 20:19:48 UTC), 16 miles N of Uliaga Island.

Other significant events include a magnitude 4.4 earthquake that occurred 24 miles W of Denali Park on May 8, 2023 19:40:56 AKDT, and a magnitude 4.6 earthquake that occurred 1 miles S of Tyonek on May 12, 2023 19:53:57 AKDT. These 2 events were reported as felt. The latter earthquake was felt widely in Anchorage and surrounding areas. 

We observed an increase in activity southwest of Circle, as well as north of Koyukuk, with approximately 20 events each this week.

There were 11 icequakes recorded near Prince William Sound, Icy Bay, and Denali. 

NOTABLE EVENTS IN DESCENDING ORDER OF MAGNITUDE


Magnitude 5.0, 16 miles N of Uliaga Island, May 13 12:19:49 AKDT
Magnitude 4.9, 31 miles S of Makushin Volcano, May 9 06:10:47 AKDT
Magnitude 4.6, 1 miles S of Tyonek, May 12 19:53:57 AKDT
Magnitude 4.4, 24 miles W of Denali Park, May 8 19:40:56 AKDT
Magnitude 4.1, 43 miles S of Atka Pass, May 8 06:54:07 AKDT
Magnitude 4.0, 3 miles SW of Novarupta, May 12 18:27:44 AKDT
Magnitude 3.6, 23 miles SE of Chignik, May 12 23:37:22 AKDT
Magnitude 3.6, 65 miles SW of Mt. Gareloi, May 8 04:51:49 AKDT
Magnitude 3.5, 54 miles SE of Atka, May 8 13:09:21 AKDT
Magnitude 3.5, 14 miles N of Amukta Pass, May 12 09:04:28 AKDT

This report was compiled by Ayumi Bakken

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.