Alaska earthquakes

M3.5 earthquake 99 km E of Chignik, Alaska

A magnitude 3.5 earthquake struck 99 km E of Chignik, Alaska on Wed, Nov 3, 2021, 10:51 PM AKDT (06:51 UTC), 55 km (34 mi) below the surface.

A larger quake followed: M4.5 151 km SSW of Akhiok, 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: 3.5 (ml), minor
Local time: Wed, Nov 3, 2021, 10:51 PM AKDT
UTC: 2021-11-04 06:51:41 UTC
Depth: 54.5 km (33.9 mi), shallow
Epicenter: 56.198° N, 156.804° 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: 97

Nearest places

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

Sand Point, AlaskaPopulation 1,064. Forecast250 kmENE

Nearby

Within 100 km, magnitude 1.5 and up: 80 in the 60 days after this one and 119 in the 30 days before it.

After

The first 60 of 80.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021e5heifi (also filed as us7000frcc). Read Wed, Sep 23, 2026, 5:16 AM UTC.