WEEK SEISMICITY REPORT FOR AUGUST 8, 2022 TO AUGUST 14, 2022

During the week of August 8, 2022, the Alaska Earthquake Center reported 797 earthquakes within the state. The largest earthquake was magnitude 5.2 that occurred on August 14 at 06:43:39 AKST (August 14, 14:43:39 UTC), 6 miles S of Segula Peak. 

All other events greater than M 3.5 occurred along the subduction zone, except for a M4.2 140miles W of Little Diomede and M3.8 4miles NE of Iliamna Volcano.  Areas of ongoing seismicity include the Purcell Mountains swarm, Kaktovic, offshore Kodiak, and Simeonof-Chignik zones.  There were 18 icequakes recorded near Prince William Sound, Icy bay, Wright Glacier and Mt. Ogden.  2 events were reported as felt.

NOTABLE EVENTS IN DESCENDING ORDER OF MAGNITUDE


Magnitude 5.2, 6 miles S of Segula Peak, August 14 06:43:39 AKST
Magnitude 4.6, 33 miles S of Chagulak Island, August 9 13:21:10 AKST
Magnitude 4.3, 6 miles SE of Semisopochnoi Island, August 7 19:57:23 AKST
Magnitude 4.2, 140 miles W of Little Diomede, August 7 18:01:48 AKST
Magnitude 3.8, 50 miles S of Unalaska, August 8 09:02:03 AKST
Magnitude 3.8, 4 miles NE of Iliamna Volcano, August 13 09:38:33 AKST
Magnitude 3.7, 13 miles S of Little Sitkin Pass, August 12 10:02:19 AKST
Magnitude 3.6, 122 miles SE of Unalaska, August 12 03:43:46 AKST
Magnitude 3.4, 5 miles S of Salcha, August 7 23:29:21 AKST
Magnitude 3.4, 3 miles W of Kasilof, August 14 10:08:47 AKST

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.