Alaska earthquakes

M2.4 earthquake 117 km E of Chignik, Alaska

A magnitude 2.4 earthquake struck 117 km E of Chignik, Alaska on Mon, Oct 11, 2021, 1:56 AM AKDT (09:56 UTC), 72 km (45 mi) below the surface.

A larger quake followed: M2.5 114 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: 2.4 (ml), micro
Local time: Mon, Oct 11, 2021, 1:56 AM AKDT
UTC: 2021-10-11 09:56:40 UTC
Depth: 72.2 km (44.9 mi), intermediate-depth
Epicenter: 56.353° N, 156.502° 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: 36

Nearest places

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

Naknek, AlaskaPopulation 544. Forecast266 kmS

Nearby

Within 100 km, magnitude 1.5 and up: 180 in the 60 days after this one and 19 in the 30 days before it.

After

The first 60 of 180.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021d1ubjwx (also filed as us6000g9vk). Read Tue, Sep 22, 2026, 11:24 PM UTC.