Alaska earthquakes

M3.3 earthquake 226 km SSW of Akhiok, Alaska

A magnitude 3.3 earthquake struck 226 km SSW of Akhiok, Alaska on Sun, Oct 24, 2021, 6:22 AM AKDT (14:22 UTC), 4 km (3 mi) below the surface.

A larger quake followed: M3.9 190 km SSW of Akhiok, Alaska. This one was a foreshock.

Map

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The earthquake

Magnitude: 3.3 (ml), minor
Local time: Sun, Oct 24, 2021, 6:22 AM AKDT
UTC: 2021-10-24 14:22:27 UTC
Depth: 4.1 km (2.5 mi), shallow
Epicenter: 54.983° N, 155.133° 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: 42

Nearby

Within 100 km, magnitude 1.5 and up: 17 in the 60 days after this one and 9 in the 30 days before it.

After

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021dnf2x1b (also filed as us6000g9np). Read Tue, Sep 22, 2026, 8:59 PM UTC.