Alaska earthquakes

M2.3 earthquake 55 km S of Kokhanok, Alaska

A magnitude 2.3 earthquake struck 55 km S of Kokhanok, Alaska on Thu, Oct 21, 2021, 5:06 AM AKDT (13:06 UTC), 130 km (81 mi) below the surface.

A larger quake followed: M3.5 81 km SW of Nanwalek, 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: 2.3 (ml), micro
Local time: Thu, Oct 21, 2021, 5:06 AM AKDT
UTC: 2021-10-21 13:06:58 UTC
Depth: 130.2 km (80.9 mi), intermediate-depth
Epicenter: 58.946° N, 154.613° 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: 74

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 95 in the 60 days after this one and 61 in the 30 days before it.

After

The first 60 of 95.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021difs2uz (also filed as us6000fwey). Read Tue, Sep 29, 2026, 5:01 AM UTC.