Alaska earthquakes

M3.1 earthquake 75 km N of Chickaloon, Alaska

A magnitude 3.1 earthquake struck 75 km N of Chickaloon, Alaska on Mon, May 31, 2021, 12:43 AM AKDT (08:43 UTC), 45 km (28 mi) below the surface.

A larger quake followed: M4.6 75 km N of Chickaloon, Alaska. This one was a foreshock.

Susitna North 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: 3.1 (ml), minor
Local time: Mon, May 31, 2021, 12:43 AM AKDT
UTC: 2021-05-31 08:43:54 UTC
Depth: 44.5 km (27.7 mi), shallow
Epicenter: 62.469° N, 148.257° W
Region: Alaska
Felt reports: 1
Tsunami flag: No
Status: Reviewed by a seismologist

Did you feel it?

1 person reported to the USGS what they felt; the strongest reported shaking was II, weak shaking.

How well it is located

Reviewed by a seismologist.

Stations used: 170

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 109 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 ak0216xv67ct (also filed as us6000eg7p). Read Sun, Sep 27, 2026, 4:53 AM UTC.