Alaska earthquakes

M2.5 earthquake 74 km ESE of Chignik, Alaska

A magnitude 2.5 earthquake struck 74 km ESE of Chignik, Alaska on Sun, Oct 31, 2021, 4:43 PM AKDT (00:43 UTC), 12 km (7 mi) below the surface.

A larger quake followed: M3.5 99 km E 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: 2.5 (ml), micro
Local time: Sun, Oct 31, 2021, 4:43 PM AKDT
UTC: 2021-11-01 00:43:21 UTC
Depth: 11.9 km (7.4 mi), shallow
Epicenter: 56.005° N, 157.328° 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: 45

Nearest places

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

Sand Point, AlaskaPopulation 1,064. Forecast212 kmENE

Nearby

Within 100 km, magnitude 1.5 and up: 90 in the 60 days after this one and 109 in the 30 days before it.

After

The first 60 of 90.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021e0f64fb (also filed as us6000ga5u). Read Wed, Sep 23, 2026, 2:44 AM UTC.