Monthly Seismicity Report For January 1, 2019 to January 31, 2019

During the month of January 2019, the Alaska Earthquake Center reported 4,264 earthquakes within the state. The largest earthquake was magnitude 5.9 that occurred on January 5 at 09:47:11 AKST (January 5, 18:47:11 UTC), 49 miles S of Tanaga Volcano. 19 earthquakes were felt this month, 12 of which were aftershocks of the M7.0 November 30, 2018 Anchorage earthquake. Earthquakes of note include the M5.1 earthquake, 38 miles NW of Tanana on January 5th. This earthquake was felt widely in Fairbanks and as far away as Huslia, Ruby, and Healy. Also, there is ongoing activity offshore of Kodiak and near Kaktovik. 

Notable Events in Descending Order of Magnitude

Magnitude 5.9, 49 miles S of Tanaga Volcano, January 5 09:47:12 AKST
Magnitude 5.2, 8 miles NW of Novarupta, January 21 19:43:20 AKST
Magnitude 5.1, 47 miles S of Tanaga Volcano, January 5 22:25:41 AKST
Magnitude 5.1, 38 miles NW of Tanana, January 5 18:45:34 AKST
Magnitude 5.0, 8 miles NW of Anchorage, January 13 07:45:55 AKST
Magnitude 5.0, 6 miles N of Anchorage, December 31 18:03:31 AKST
Magnitude 4.9, 34 miles N of Port Lions, January 1 21:48:44 AKST
Magnitude 4.9, 48 miles SW of Kaktovik, January 13 15:41:19 AKST
Magnitude 4.6, 40 miles S of Herbert Island, January 13 23:42:58 AKST
Magnitude 4.6, 15 miles W of Chugiak, January 10 17:33:38 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.