Alaska earthquakes

M2.8 earthquake 119 km E of Chignik, Alaska

A magnitude 2.8 earthquake struck 119 km E of Chignik, Alaska on Tue, Oct 12, 2021, 4:23 PM AKDT (00:23 UTC), 73 km (46 mi) below the surface.

A larger quake followed: M2.9 137 km ESE 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: 2.8 (ml), micro
Local time: Tue, Oct 12, 2021, 4:23 PM AKDT
UTC: 2021-10-13 00:23:50 UTC
Depth: 73.3 km (45.5 mi), intermediate-depth
Epicenter: 56.371° N, 156.484° 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: 64

Nearest places

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

Naknek, AlaskaPopulation 544. Forecast264 kmS

Nearby

Within 100 km, magnitude 1.5 and up: 129 in the 60 days after this one and 70 in the 30 days before it.

After

The first 60 of 129.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021d4zu9bh (also filed as us6000g9um). Read Wed, Sep 23, 2026, 2:22 PM UTC.