Alaska earthquakes

M2.5 earthquake 56 km SE of Kokhanok, Alaska

A magnitude 2.5 earthquake struck 56 km SE of Kokhanok, Alaska on Sat, Sep 11, 2021, 11:22 PM AKDT (07:22 UTC), 113 km (70 mi) below the surface.

A larger quake followed: M3.8 92 km SSE of Igiugig, Alaska. This one was a foreshock.

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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: 2.5 (ml), micro
Local time: Sat, Sep 11, 2021, 11:22 PM AKDT
UTC: 2021-09-12 07:22:04 UTC
Depth: 112.7 km (70.0 mi), intermediate-depth
Epicenter: 59.077° N, 154.075° 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: 130

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: at least 199 in the 60 days after this one and 101 in the 30 days before it.

After

The first 60 of at least 199.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021bpuc971 (also filed as us7000fah5). Read Sun, Sep 27, 2026, 5:23 AM UTC.