WEEK SEISMICITY REPORT FOR MAY 5, 2025 TO MAY 11, 2025

During the week of May 5, 2025, the Alaska Earthquake Center reported 379 earthquakes within the state. There were 2 earthquakes that were tied for the largest event of the week both coming in at a magnitude 4.5. The first occurred on May 7 at 06:30:41 AKDT (May 7, 14:30:41 UTC), 91 miles SE of Sand Point. This event had 7 aftershocks ranging from M2.1-3.0. The second magnitude 4.5 earthquake occurred on May 8 at 18:28:52 AKDT 140 miles SE of Chignik and had no aftershocks.

There were three events that were reported as felt this week. The first was a magnitude 3.6 earthquake occurring on May 5 16:17:32 AKDT 5 miles NW of Nenana. This event was felt in Clear, Fairbanks, Fort Wainwright, North Pole, and Salcha. Next, at 15:28:01 AKDT on May 6, a magnitude 3.8 earthquake occured 18 miles SW of Hope and was reported as felt in Anchorage and Eagle River. Finally, a magnitude 4.4 earthquake 32 miles S of Unalaska was felt in Unalaska on May 11 at 01:29:01 AKDT.

There were 4 more events recorded in the aftershock sequence east of Kenai this week, the largest being a magnitude 3.8.

Finally 4 icequakes were recorded this week in Prince William Sound.

NOTABLE EVENTS IN DESCENDING ORDER OF MAGNITUDE


Magnitude 4.5, 91 miles SE of Sand Point, May 7 06:30:41 AKDT
Magnitude 4.5, 139 miles SE of Chignik, May 8 18:28:53 AKDT
Magnitude 4.4, 32 miles S of Unalaska, May 11 01:29:02 AKDT
Magnitude 4.3, 38 miles SE of Adak, May 5 00:51:24 AKDT
Magnitude 4.0, 4 miles E of Little Sitkin Pass, May 5 21:30:54 AKDT
Magnitude 3.8, 27 miles S of Mt. Sergief, May 8 08:44:21 AKDT
Magnitude 3.8, 1 miles SW of Mt. Katmai, May 10 23:45:32 AKDT
Magnitude 3.8, 18 miles SW of Hope, May 6 15:28:02 AKDT
Magnitude 3.7, 2 miles W of Kantishna, May 7 02:45:53 AKDT
Magnitude 3.7, 128 miles S of Atka, May 10 03:55:49 AKDT

This report was compiled by Will Dienstfrey

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.