WEEK SEISMICITY REPORT FOR AUGUST 5, 2024 TO AUGUST 11, 2024
During the week of August 5, 2024, the Alaska Earthquake Center reported 658 earthquakes within the state. The largest earthquake was magnitude 4.0 that occurred on August 8 at 12:50:52 AKDT (August 8, 20:50:52 UTC), 14 miles SW of Segula Peak.
Another event, a magnitude 3.1, occurred 20 miles SE of Minto on August 9, 2024 at 13:16:38 AKDT. This earthquake had 14 aftershocks throughout August 9. The mainshock was recorded as felt.
Swarm activity in Seward Peninsula was recorded with 12 events during this week.
We also observed an increase in the swarm activity E of Atka again this week, with 18 events ranging from magnitude 1.9-3.3.
There were 10 icequakes recorded in the Prince William Sound, Icy Bay, Yakutat Bay, and Mt. Spurr.
Two events were reported as felt this week.
NOTABLE EVENTS IN DESCENDING ORDER OF MAGNITUDE
Magnitude 4.0, 14 miles SW of Segula Peak, August 8 12:50:52 AKDT
Magnitude 3.9, 197 miles SW of Port Alexander, August 5 13:47:55 AKDT
Magnitude 3.9, 91 miles S of Akhiok, August 9 23:23:52 AKDT
Magnitude 3.7, 31 miles S of Mt. Sergief, August 8 07:17:01 AKDT
Magnitude 3.6, 131 miles SE of Amukta Pass, August 7 04:07:29 AKDT
Magnitude 3.5, 39 miles NE of Ouzinkie, August 9 09:05:26 AKDT
Magnitude 3.4, 17 miles E of Mt. Recheshnoi, August 6 12:53:35 AKDT
Magnitude 3.3, 85 miles S of Westdahl Peak, August 11 11:37:27 AKDT
Magnitude 3.3, 25 miles S of Yunaska Island, August 11 15:59:47 AKDT
Magnitude 3.3, 18 miles W of Mt. Gareloi, August 9 08:28:08 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.