Alaska earthquakes

M3.1 earthquake 116 km E of Chignik, Alaska

A magnitude 3.1 earthquake struck 116 km E of Chignik, Alaska on Mon, Feb 20, 2023, 10:48 PM AKST (07:48 UTC), 27 km (17 mi) below the surface.

A larger quake followed: M3.4 41 km ESE of Chignik, Alaska. This one was a foreshock.

Sand Point 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, Feb 20, 2023, 10:48 PM AKST
UTC: 2023-02-21 07:48:14 UTC
Depth: 27.0 km (16.8 mi), shallow
Epicenter: 56.291° N, 156.526° 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: 142

Nearest places

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

Sand Point, AlaskaPopulation 1,064. Forecast270 kmENE

Nearby

Within 100 km, magnitude 1.5 and up: 94 in the 60 days after this one and 31 in the 30 days before it.

After

The first 60 of 94.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0232e4eeen (also filed as us6000jqi5). Read Wed, Sep 30, 2026, 4:13 PM UTC.