Alaska earthquakes

M2.8 earthquake 111 km E of Chignik, Alaska

A magnitude 2.8 earthquake struck 111 km E of Chignik, Alaska on Sun, Oct 17, 2021, 5:34 PM AKDT (01:34 UTC), 30 km (19 mi) below the surface.

A larger quake followed: M3.4 150 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: 2.8 (ml), micro
Local time: Sun, Oct 17, 2021, 5:34 PM AKDT
UTC: 2021-10-18 01:34:49 UTC
Depth: 30.1 km (18.7 mi), shallow
Epicenter: 56.279° N, 156.608° W
Region: Alaska
Felt reports: 1
Tsunami flag: No
Status: Reviewed by a seismologist

Did you feel it?

1 person reported to the USGS what they felt; the strongest reported shaking was II, weak shaking.

How well it is located

Reviewed by a seismologist.

Stations used: 43

Nearest places

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

Sand Point, AlaskaPopulation 1,064. Forecast265 kmENE

Nearby

Within 100 km, magnitude 1.5 and up: 105 in the 60 days after this one and 94 in the 30 days before it.

After

The first 60 of 105.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021dda6tc6 (also filed as us6000fvj0). Read Wed, Sep 23, 2026, 7:24 AM UTC.