Alaska earthquakes

M2.5 earthquake 20 km N of Karluk, Alaska

A magnitude 2.5 earthquake struck 20 km N of Karluk, Alaska on Sun, Oct 24, 2021, 3:02 AM AKDT (11:02 UTC), 37 km (23 mi) below the surface.

A larger quake followed: M3.1 100 km N of Karluk, Alaska. This one was a foreshock.

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Map

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: Sun, Oct 24, 2021, 3:02 AM AKDT
UTC: 2021-10-24 11:02:11 UTC
Depth: 36.9 km (22.9 mi), shallow
Epicenter: 57.749° N, 154.448° 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: 31

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 113 in the 60 days after this one and 58 in the 30 days before it.

After

The first 60 of 113.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021dnd6ans (also filed as us6000g9nl). Read Wed, Sep 23, 2026, 8:13 AM UTC.