Alaska earthquakes

M3.3 earthquake 143 km SE of Perryville, Alaska

A magnitude 3.3 earthquake struck 143 km SE of Perryville, Alaska on Sat, Aug 14, 2021, 6:55 AM AKDT (14:55 UTC), 14 km (9 mi) below the surface.

A larger quake followed: M5.6 181 km SE 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: 3.3 (ml), minor
Local time: Sat, Aug 14, 2021, 6:55 AM AKDT
UTC: 2021-08-14 14:55:02 UTC
Depth: 14.3 km (8.9 mi), shallow
Epicenter: 55.007° N, 157.531° 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.

How well it is located

Reviewed by a seismologist.

Stations used: 75

Nearest places

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

Sand Point, AlaskaPopulation 1,064. Forecast192 kmE

Nearby

Within 100 km, magnitude 1.5 and up: at least 199 in the 60 days after this one and at least 200 in the 30 days before it.

After

The first 60 of at least 199.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021ae04b00 (also filed as us6000f66w). Read Sat, Sep 26, 2026, 8:55 PM UTC.