Weekly Seismicity Report For July 13, 2020 to July 19, 2020

During the week of July 13, 2020, the Alaska Earthquake Center reported 905 earthquakes within the state. The largest earthquake was magnitude 5.1 that occurred on July 15 at 00:59:53 AKST (July 15, 08:59:53 UTC), 6 miles SE of Bobrof Island. 2 events were felt this week. There was an unusual magnitude 4.2 event on the western section of the Denali fault as well as some interesting events happening near Mt. Ogden. These events tend to be seasonal, occurring usually in the summer months possibly related to glacial activity.

Notable Events in Descending Order of Magnitude

Magnitude 5.1, 6 miles SE of Bobrof Island, July 15 00:59:54 AKST
Magnitude 4.2, 57 miles N of Lime Village, July 18 16:35:27 AKST
Magnitude 4.2, 53 miles S of Unalaska, July 17 18:27:02 AKST
Magnitude 3.9, 24 miles SW of Amchitka, July 12 23:48:10 AKST
Magnitude 3.9, 8 miles SE of Iliamna Volcano, July 17 10:06:42 AKST
Magnitude 3.6, 24 miles S of Adak, July 16 08:07:40 AKST
Magnitude 3.5, 37 miles S of Bobrof Island, July 17 13:38:25 AKST
Magnitude 3.3, 39 miles S of Yunaska Island, July 15 13:01:03 AKST
Magnitude 3.3, 33 miles E of Talkeetna, July 18 16:36:24 AKST
Magnitude 3.3, 61 miles W of Elfin Cove, July 14 11:17:34 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.