WEEK SEISMICITY REPORT FOR OCTOBER 16, 2023 TO OCTOBER 22, 2023
During the week of October 16, 2023, the Alaska Earthquake Center reported 744 earthquakes within the state. The largest earthquake was magnitude 6.4 that occurred on October 16 at 03:35:31 AKST (October 16, 11:35:31 UTC), 3 miles S of Mt. Moffett.
All other significant events occurred along the subduction zone.
There were 38 icequakes recorded near Prince William Sound, Icy Bay, Yakutat Bay, and Wright Glacier.
7 events were reported as felt.
NOTABLE EVENTS IN DESCENDING ORDER OF MAGNITUDE
Magnitude 6.4, 3 miles S of Mt. Moffett, October 16 03:35:31 AKDT
Magnitude 4.3, 46 miles SE of Mt. Cleveland, October 20 11:39:40 AKDT
Magnitude 4.0, 47 miles S of Akutan, October 16 07:52:16 AKDT
Magnitude 3.9, 11 miles E of Atka, October 20 12:54:48 AKDT
Magnitude 3.8, 78 miles SE of Herbert Island, October 21 19:58:59 AKDT
Magnitude 3.8, 17 miles E of Augustine Volcano, October 22 12:14:00 AKDT
Magnitude 3.7, 16 miles SE of Redoubt Volcano, October 21 20:06:43 AKDT
Magnitude 3.7, 54 miles SW of Kiska Volcano, October 16 02:43:59 AKDT
Magnitude 3.7, 91 miles S of Amchitka, October 22 04:20:19 AKDT
Magnitude 3.5, 14 miles NW of Ninilchik, October 18 14:02:33 AKDT
This report was compiled by R. Wilkes
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.