Alaska earthquakes

M2.3 earthquake 82 km S of Kokhanok, Alaska

A magnitude 2.3 earthquake struck 82 km S of Kokhanok, Alaska on Tue, Dec 21, 2021, 3:43 AM AKST (12:43 UTC), 126 km (79 mi) below the surface.

A larger quake followed: M3.7 21 km SSE of Kokhanok, Alaska. This one was a foreshock.

Naknek forecastMore in Alaska

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

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The earthquake

Magnitude
2.3 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2021-12-21 12:43:55 UTC
Depth
126.4 km (78.5 mi), intermediate-depth
Epicenter
58.701° N, 154.869° 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
91

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 104 in the 60 days after this one and 43 in the 30 days before it.

After

The first 60 of 104.

Before

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021gbb6qnb. Read Fri, Oct 2, 2026, 12:48 AM UTC.