WEEK SEISMICITY REPORT FOR AUGUST 29, 2022 TO SEPTEMBER 4, 2022
During the week of August 29, 2022, the Alaska Earthquake Center reported 802 earthquakes within the state. The largest earthquake was magnitude 4.7 that occurred on September 1 at 18:45:31 AKST (September 2, 02:45:31 UTC), 24 miles S of Adak.
All other events greater than 3.5 occurred along the subduction zone except for a M4.2 40 miles N of Valdez, and a M3.7 139 miles NW of Point Hope. Areas of ongoing seismicity include the Kaktovic, offshore Kodiak, and Simeonof-Chignik zones. There were 14 icequakes recorded in Prince William Sound, Yahtse Glacier, Wrangell St. Elias, and Icy Bay. Three events were reported as felt.
NOTABLE EVENTS IN DESCENDING ORDER OF MAGNITUDE
Magnitude 4.7, 24 miles S of Adak, September 1 18:45:31 AKST
Magnitude 4.5, 140 miles S of Akhiok, August 30 10:18:09 AKST
Magnitude 4.5, 139 miles SE of Chignik, August 30 10:23:49 AKST
Magnitude 4.4, 39 miles S of Perryville, August 29 13:32:35 AKST
Magnitude 4.2, 40 miles N of Valdez, August 29 01:41:24 AKST
Magnitude 4.1, 50 miles W of Amchitka, September 3 00:24:17 AKST
Magnitude 3.9, 10 miles NE of Semisopochnoi Island, August 30 21:29:41 AKST
Magnitude 3.9, 22 miles N of False Pass, September 2 21:26:21 AKST
Magnitude 3.8, 26 miles S of Adak, September 1 18:56:22 AKST
Magnitude 3.7, 139 miles NW of Point Hope, August 30 07:44:58 AKST
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.