During the month of January 2023, the Alaska Earthquake Center reported 4014 earthquakes within the state. The largest earthquake was magnitude 5.1 that occurred on January 26 at 07:41:40 AKST (January 26, 16:41:40 UTC), 124 miles S of Seguam Island, Andreanof Islands. 

The most notable event was the M4.5 earthquake 9 miles SW of Hatcher Pass on January 16th, at 8:43am AKST. It was  felt in Anchorage and surrounding communities, and 790 felt reports were submitted on this event. 

We also recorded 130 volcano-tectonic earthquakes, 40 suspected quarry blasts, 54 ice quakes, and 1 event of unknown origin. 

We continue to monitor seismic activity within Anchorage, offshore Kodiak, Simeonof-Chignik, Kaktovik aftershock zones as well as crustal seismic activity in the Brooks Range, Seward Peninsula and Bering Strait. 

12 earthquakes were reported as felt in January 2023.


Magnitude 5.1, 124 miles S of Seguam Island, January 26 07:41:40 AKST
Magnitude 5.0, 123 miles SE of Perryville, January 10 10:42:03 AKST
Magnitude 4.8, 28 miles NE of Uliaga Island, January 21 18:27:43 AKST
Magnitude 4.8, 85 miles SE of Akutan, January 8 01:22:40 AKST
Magnitude 4.8, 27 miles NE of Icy Bay, January 10 22:00:48 AKST
Magnitude 4.8, 91 miles SE of Westdahl Peak, January 19 02:45:12 AKST
Magnitude 4.6, 73 miles SW of Buldir Is, January 4 02:06:17 AKST
Magnitude 4.5, 18 miles W of Karluk, January 25 06:13:36 AKST
Magnitude 4.5, 62 miles NW of Burwash Landing, January 30 00:02:45 AKST
Magnitude 4.5, 9 miles SW of Hatcher Pass, January 16 08:43:28 AKST

This report was compiled by N Kozyreva.

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.