Monthly Seismicity Report For February 1, 2020 to February 29, 2020

During the month of February 2020, the Alaska Earthquake Center reported 3,434 earthquakes within the state. The largest earthquake was magnitude 5.3 that occurred on February 4 at 13:17:45 AKST (February 4, 22:17:45 UTC), 7 miles S of Davidof Island. 9 events were felt this month. The Purcell Mountain swarm continues to show quite a bit of activity this month along with a small swarm on the Seward Peninsula near Shishmaref. We are also continuing to see aftershocks near Great Sitkin and Offshore Kodiak. 

Notable Events in Descending Order of Magnitude

Magnitude 5.3, 7 miles S of Davidof Island, February 4 14:17:46 AKST
Magnitude 5.2, 60 miles S of Mt. Gareloi, February 21 02:20:17 AKST
Magnitude 5.0, 57 miles S of Atka Pass, February 13 07:26:26 AKST
Magnitude 4.9, 12 miles SE of Mt. Ugashik, February 17 01:18:06 AKST
Magnitude 4.6, 46 miles S of Kiska Volcano, February 13 06:07:38 AKST
Magnitude 4.6, 49 miles S of Tanaga Volcano, February 16 19:33:15 AKST
Magnitude 4.5, 21 miles NW of Kaguyak Crater, February 12 06:16:05 AKST
Magnitude 4.5, 54 miles S of Atka Pass, February 12 22:53:31 AKST
Magnitude 4.3, 15 miles NE of Redoubt Volcano, February 2 20:49:09 AKST
Magnitude 4.2, 60 miles S of Mt. Gareloi, February 21 02:24:34 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.