WEEK SEISMICITY REPORT FOR JANUARY 27, 2025 TO FEBRUARY 2, 2025
During the week of January 27, 2025, the Alaska Earthquake Center reported 686 earthquakes within the state. The largest earthquake was magnitude 5.2 that occurred on January 29 at 19:40:08 AKST (January 30, 04:40:08 UTC), 8 miles W of Takotna. This main shock was reported as felt in MC Grath, Nikolai, Shageluk, Crooked Creek, Kaltag, and surrounding areas. There were 36 aftershocks recorded following this event, ranging from 1.2 to 3.3 in magnitude this week.
Two more felt events in this week:
A magnitude 3.9 earthquake that occurred 39 miles E of Healy on January 29, 2025 10:44:04 AKST was reported as felt in Healy, Fairbanks, North Pole, Eielson AFB and Fort Wainwright.
A magnitude 3.0 earthquake that occurred 4 miles W of Haines on January 27, 2025 15:19:39 AKST was reported as felt in Haines, Skagway and Juneau.
Activity at Mt. Spurr declines this week, with just two events recorded.
In addition to tectonic activity, three ice quakes and three mining blasts were also recorded.
NOTABLE EVENTS IN DESCENDING ORDER OF MAGNITUDE
Magnitude 5.2, 8 miles W of Takotna, January 29 19:40:08 AKST
Magnitude 4.4, 4 miles SW of Davidof Island, January 29 19:53:11 AKST
Magnitude 4.4, 51 miles SE of Okmok Caldera, February 1 03:15:49 AKST
Magnitude 4.3, 41 miles SE of Yunaska Island, January 28 14:57:33 AKST
Magnitude 4.2, 46 miles SE of Mt. Cleveland, January 28 02:25:25 AKST
Magnitude 4.2, 61 miles S of Isanotski Peaks, January 29 07:19:05 AKST
Magnitude 3.9, 39 miles E of Healy, January 29 10:44:04 AKST
Magnitude 3.9, 39 miles S of Herbert Island, January 31 16:52:46 AKST
Magnitude 3.8, 45 miles S of Yunaska Island, January 31 22:01:33 AKST
Magnitude 3.7, 58 miles SE of Atka, January 29 05:08:53 AKST
This report was compiled by Ayumi Bakken
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.