Alaska earthquakes

M2.5 earthquake 151 km SE of Chignik, Alaska

A magnitude 2.5 earthquake struck 151 km SE of Chignik, Alaska on Sat, Nov 20, 2021, 9:33 PM AKST (06:33 UTC), 22 km (14 mi) below the surface.

A larger quake followed: M2.7 151 km SE of Perryville, 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: Sat, Nov 20, 2021, 9:33 PM AKST
UTC: 2021-11-21 06:33:55 UTC
Depth: 22.0 km (13.7 mi), shallow
Epicenter: 55.230° N, 156.899° 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: 21

Nearest places

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

Sand Point, AlaskaPopulation 1,064. Forecast228 kmE

Nearby

Within 100 km, magnitude 1.5 and up: 41 in the 60 days after this one and 27 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 ak021exlfl07 (also filed as us6000ge88). Read Wed, Sep 23, 2026, 3:50 AM UTC.