Alaska earthquakes

M2.9 earthquake 94 km S of Perryville, Alaska

A magnitude 2.9 earthquake struck 94 km S of Perryville, Alaska on Wed, Sep 22, 2021, 8:33 PM AKDT (04:33 UTC), 25 km (16 mi) below the surface.

A larger quake followed: M3.3 106 km SSE of Sand Point, 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: 2.9 (ml), micro
Local time: Wed, Sep 22, 2021, 8:33 PM AKDT
UTC: 2021-09-23 04:33:16 UTC
Depth: 24.9 km (15.5 mi), shallow
Epicenter: 55.065° N, 159.008° 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.

Location uncertainty: About 3.9 km horizontally, 12.4 km in depth
Magnitude uncertainty: ±0.12
Depth from: From location
Station coverage gap: 206°, poorly surrounded by stations
Stations used: 46

Nearest places

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

Sand Point, AlaskaPopulation 1,064. Forecast99 kmESE

Nearby

Within 100 km, magnitude 1.5 and up: 173 in the 60 days after this one and 26 in the 30 days before it.

After

The first 60 of 173.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000fvsq (also filed as ak021c7zj5n8). Read Wed, Sep 23, 2026, 8:12 AM UTC.