WEEK SEISMICITY REPORT FOR SEPTEMBER 11, 2023 TO SEPTEMBER 17, 2023
During the week of September 11, 2023, the Alaska Earthquake Center reported 834 earthquakes within the state. The largest earthquake was magnitude 5.0 that occurred on September 12 at 15:17:35 AKDT (September 12, 23:17:35 UTC), 38 miles S of Adak.
Other significant events include a magnitude 3.8 earthquake that occurred 35 miles NW of Burwash Landing on September 12, 2023 22:46:43 AKDT which had 9 aftershocks, ranging in magnitude between 1.2 and 2.4.
Last week's elevated activity in the Brooks' Range has decreased, with only 9 events this week.
There were 14 icequakes recorded near Prince William Sound region and Yakutat Bay, and 3 landslides recorded in Denali, two of which were near Peters Dome.
No event was reported as felt.
NOTABLE EVENTS IN DESCENDING ORDER OF MAGNITUDE
Magnitude 5.0, 38 miles S of Adak, September 12 15:17:35 AKDT
Magnitude 4.9, 48 miles SE of Westdahl Peak, September 12 13:48:57 AKDT
Magnitude 4.7, 120 miles SE of Chignik, September 11 21:23:16 AKDT
Magnitude 4.4, 4 miles SW of Augustine Volcano, September 14 14:35:06 AKDT
Magnitude 3.8, 41 miles SE of Mt. Cleveland, September 16 15:59:20 AKDT
Magnitude 3.8, 35 miles NW of Burwash Landing, September 12 22:46:44 AKDT
Magnitude 3.5, 44 miles SW of Mt. Gareloi, September 14 14:55:37 AKDT
Magnitude 3.4, 120 miles SE of Chignik, September 12 02:23:21 AKDT
Magnitude 3.4, 25 miles E of Atka, September 12 13:12:24 AKDT
Magnitude 3.3, 30 miles S of Akhiok, September 15 01:07:41 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.