Alaska earthquakes

M3.1 earthquake 55 km SSW of Nanwalek, Alaska

A magnitude 3.1 earthquake struck 55 km SSW of Nanwalek, Alaska on Sun, Nov 21, 2021, 2:42 AM AKST (11:42 UTC), 51 km (31 mi) below the surface.

A larger quake followed: M4.6 71 km NNE of Aleneva, Alaska. This one was a foreshock.

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

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The earthquake

Magnitude: 3.1 (ml), minor
Local time: Sun, Nov 21, 2021, 2:42 AM AKST
UTC: 2021-11-21 11:42:48 UTC
Depth: 50.5 km (31.4 mi), shallow
Epicenter: 58.877° N, 152.202° 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: 159

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: at least 200 in the 60 days after this one and 92 in the 30 days before it.

After

The first 60 of at least 200.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021exognxk (also filed as us7000fvy4). Read Tue, Sep 29, 2026, 1:41 AM UTC.