Alaska earthquakes

M3.0 earthquake 114 km E of Chignik, Alaska

A magnitude 3.0 earthquake struck 114 km E of Chignik, Alaska on Mon, Oct 11, 2021, 1:30 AM AKDT (09:30 UTC), 65 km (40 mi) below the surface.

A larger quake followed: M3.6 113 km E of Chignik, Alaska. This one was a foreshock.

Naknek forecast More in Alaska

Map

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

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The earthquake

Magnitude: 3.0 (ml), minor
Local time: Mon, Oct 11, 2021, 1:30 AM AKDT
UTC: 2021-10-11 09:30:52 UTC
Depth: 65.0 km (40.4 mi), shallow
Epicenter: 56.410° N, 156.568° W
Region: Alaska
Felt reports: 1
Tsunami flag: No
Status: Reviewed by a seismologist

Did you feel it?

1 person reported to the USGS what they felt; the strongest reported shaking was II, weak shaking.

How well it is located

Reviewed by a seismologist.

Stations used: 92

Nearest places

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

Naknek, AlaskaPopulation 544. Forecast259 kmS

Nearby

Within 100 km, magnitude 1.5 and up: 188 in the 60 days after this one and 11 in the 30 days before it.

After

The first 60 of 188.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021d1u606z (also filed as us6000fuwb). Read Wed, Sep 23, 2026, 4:51 AM UTC.