Alaska earthquakes

M2.3 earthquake 12 km NW of Glennallen, Alaska

A magnitude 2.3 earthquake struck 12 km NW of Glennallen, Alaska on Sun, Apr 25, 2021, 1:39 AM AKDT (09:39 UTC), 13 km (8 mi) below the surface.

A larger quake followed: M2.9 Southern Alaska. This one was a foreshock.

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Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude: 2.3 (ml), micro
Local time: Sun, Apr 25, 2021, 1:39 AM AKDT
UTC: 2021-04-25 09:39:37 UTC
Depth: 13.3 km (8.3 mi), shallow
Epicenter: 62.184° N, 145.713° W
Region: Alaska
Tsunami flag: No
Status: Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Stations used: 88

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 30 in the 60 days after this one and 13 in the 30 days before it.

After

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0215ace93f (also filed as us6000e4li). Read Sun, Sep 27, 2026, 4:07 AM UTC.