During the week of July 10, 2023, the Alaska Earthquake Center reported 963 earthquakes within the state. The largest earthquake was magnitude 7.2 that occurred on July 15 at 22:48:21 AKDT (July 16, 06:48:21 UTC), 69 miles S of Sand Point. 

This earthquake was reported as felt strongly in Sand Point and King Cove, and felt widely in the Aleutian Islands, Alaska Peninsula, Kodiak Island, Kenai Peninsula, Anchorage, and Mat-Su Valley. There were nearly 80 aftershocks for this event on July 15th and 16th in this week. 

Other notable events include, a magnitude 3.4 earthquake occurred 9 miles SE of Eagle River on July 11, 2023 21:35:39 AKDT, which was reported as being felt widely in Eagle River, Anchorage and surrounding areas, and a magnitude 3.6 earthquake occurred 182 miles W of Dixon Entrance on July 12, 2023 08:16:05 AKDT. 

There were 14 icequakes detected in Prince William Sound, Icy Bay and Denali National Park and Preserve. 

Five events were reported as felt.


Magnitude 7.2, 69 miles S of Sand Point, July 15 22:48:22 AKDT
Magnitude 5.7, 51 miles S of Sand Point, July 15 22:51:19 AKDT
Magnitude 4.7, 55 miles S of Sand Point, July 16 03:22:56 AKDT
Magnitude 4.4, 71 miles S of Sand Point, July 15 23:03:21 AKDT
Magnitude 4.0, 69 miles S of Sand Point, July 16 04:05:16 AKDT
Magnitude 4.0, 76 miles S of Sand Point, July 15 23:51:38 AKDT
Magnitude 3.9, 62 miles S of Sand Point, July 15 23:02:00 AKDT
Magnitude 3.9, 76 miles S of Sand Point, July 16 03:44:05 AKDT
Magnitude 3.7, 61 miles S of Sand Point, July 15 23:00:24 AKDT
Magnitude 3.7, 39 miles S of Amchitka, July 11 14:34:02 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.