Alaska earthquakes

M3.2 earthquake 240 km SE of Chiniak, Alaska

A magnitude 3.2 earthquake struck 240 km SE of Chiniak, Alaska on Sun, Nov 28, 2021, 1:40 PM AKST (22:40 UTC), 24 km (15 mi) below the surface.

A larger quake followed: M3.7 258 km ESE 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: Sun, Nov 28, 2021, 1:40 PM AKST
UTC: 2021-11-28 22:40:37 UTC
Depth: 23.8 km (14.8 mi), shallow
Epicenter: 56.036° N, 149.586° 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 7.7 km horizontally, 9.2 km in depth
Magnitude uncertainty: ±0.06
Depth from: From location
Station coverage gap: 199°, poorly surrounded by stations
Stations used: 77

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 21 in the 60 days after this one and 10 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000fxu2 (also filed as ak021f9freli). Read Wed, Sep 23, 2026, 6:26 PM UTC.