Alaska earthquakes

M3.2 earthquake 218 km SE of Chiniak, Alaska

A magnitude 3.2 earthquake struck 218 km SE of Chiniak, Alaska on Tue, Feb 23, 2021, 8:44 AM AKST (17:44 UTC), 21 km (13 mi) below the surface.

A larger quake followed: M4.1 259 km SE of Chiniak, 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: 3.2 (ml), minor
Local time: Tue, Feb 23, 2021, 8:44 AM AKST
UTC: 2021-02-23 17:44:44 UTC
Depth: 21.2 km (13.2 mi), shallow
Epicenter: 56.197° N, 149.788° 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.

Location uncertainty: About 9.0 km horizontally, 11.2 km in depth
Magnitude uncertainty: ±0.06
Depth from: From location
Station coverage gap: 212°, poorly surrounded by stations
Stations used: 39

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 37 in the 60 days after this one and 15 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000di5d (also filed as ak0212hlen36). Read Fri, Sep 25, 2026, 2:35 PM UTC.