Alaska earthquakes

M3.0 earthquake 122 km SE of Chignik, Alaska

A magnitude 3.0 earthquake struck 122 km SE of Chignik, Alaska on Wed, Oct 20, 2021, 6:32 AM AKDT (14:32 UTC), 9 km (5 mi) below the surface.

A larger quake followed: M3.4 115 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: 3.0 (ml), minor
Local time: Wed, Oct 20, 2021, 6:32 AM AKDT
UTC: 2021-10-20 14:32:21 UTC
Depth: 8.7 km (5.4 mi), shallow
Epicenter: 55.605° N, 156.873° 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: 77

Nearest places

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

Sand Point, AlaskaPopulation 1,064. Forecast231 kmE

Nearby

Within 100 km, magnitude 1.5 and up: 98 in the 60 days after this one and 101 in the 30 days before it.

After

The first 60 of 98.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021dgszo1c (also filed as us6000gcag). Read Wed, Sep 23, 2026, 5:19 AM UTC.