Weekly Seismicity Report For August 12, 2019 to August 18, 2019

During the week of August 12, 2019, the Alaska Earthquake Center reported 936 earthquakes within the state. The largest earthquake was magnitude 4.6 that occurred on August 13 at 17:08:30 AKST (August 14, 01:08:30 UTC), 57 miles W of Elfin Cove. There were 5 events felt this week. Notable earthquakes this week are the magnitude 4.6 near Elfin Cove on August 13 with a series of aftershocks, as well as an interesting event 32 miles SW of Takotna in the Kuskokwim Mountains. The Purcell Mountains swarm is still ongoing, though slightly less active, and the eastern Brooks Range swarm activity has increased.

Notable Events in Descending Order of Magnitude

Magnitude 4.6, 57 miles W of Elfin Cove, August 13 15:08:30 AKST
Magnitude 3.9, 57 miles SE of King Cove, August 17 10:33:45 AKST
Magnitude 3.7, 43 miles S of Tanaga Volcano, August 15 07:52:54 AKST
Magnitude 3.5, 57 miles SE of Nikolski, August 12 07:25:45 AKST
Magnitude 3.4, 9 miles W of Karluk, August 13 04:00:22 AKST
Magnitude 3.4, 39 miles E of Sutton, August 16 04:53:25 AKST
Magnitude 3.4, 44 miles SE of Akutan, August 12 15:57:29 AKST
Magnitude 3.3, 132 miles SE of Mt. Recheshnoi, August 11 15:44:44 AKST
Magnitude 3.3, 91 miles SE of Chignik, August 15 01:57:29 AKST
Magnitude 3.3, 68 miles SE of Yakutat, August 12 17:22:29 AKST

This report was compiled by M. Braun.

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 authroized or unauthorized use.

For more information on earthquakes and seismology, contact the AEC at (907)-474-7320.