WEEK SEISMICITY REPORT FOR APRIL 3, 2023 TO APRIL 9, 2023

During the week of April 3, 2023, the Alaska Earthquake Center reported 912 earthquakes within the state. The largest earthquake was magnitude 5.1 that occurred on April 8 at 12:25:11 AKDT (April 8, 20:25:11 UTC), 28 miles SE of Akutan.

Other events of note were a M4.8, 28 miles S of Atka Pass (April 7 at 23:17:41 AKDT), a M3.9, 47 miles S of Mt. Gareloi (April 6, 11:36:35 AKDT), a M3.9, 14 miles NW of Anchorage (April 3, 04:27:15), and a M3.7, 33 miles E of Amchitka.  

There were 14 icequakes detected in Prince William Sound and Icy Bay.  

Two events were reported as felt.

NOTABLE EVENTS IN DESCENDING ORDER OF MAGNITUDE


Magnitude 5.1, 28 miles SE of Akutan, April 8 12:25:11 AKDT
Magnitude 4.8, 28 miles S of Atka Pass, April 7 23:17:41 AKDT
Magnitude 3.9, 47 miles S of Mt. Gareloi, April 6 11:36:35 AKDT
Magnitude 3.9, 14 miles NW of Anchorage, April 3 04:27:15 AKDT
Magnitude 3.7, 33 miles E of Amchitka, April 2 19:41:21 AKDT
Magnitude 3.7, 52 miles NE of Ouzinkie, April 3 05:27:07 AKDT
Magnitude 3.6, 36 miles SE of Kantishna, April 6 06:20:28 AKDT
Magnitude 3.5, 34 miles SE of Semisopochnoi Island, April 5 06:01:11 AKDT
Magnitude 3.5, 2 miles E of Aniakchak Crater, April 5 19:00:50 AKDT
Magnitude 3.5, 108 miles S of Mt. Gareloi, April 6 20:33:09 AKDT

This report was compiled by Ken Becker

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.