Alaska earthquakes

M2.9 earthquake 114 km SSE of Perryville, Alaska

A magnitude 2.9 earthquake struck 114 km SSE of Perryville, Alaska on Wed, Sep 22, 2021, 1:40 PM AKDT (21:40 UTC), 19 km (12 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.

Open the live map with earthquakes

The earthquake

Magnitude: 2.9 (ml), micro
Local time: Wed, Sep 22, 2021, 1:40 PM AKDT
UTC: 2021-09-22 21:40:03 UTC
Depth: 18.7 km (11.6 mi), shallow
Epicenter: 54.925° N, 158.611° 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, 7.5 km in depth
Magnitude uncertainty: ±0.07
Depth from: From location
Station coverage gap: 200°, poorly surrounded by stations
Stations used: 37

Nearest places

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

Sand Point, AlaskaPopulation 1,064. Forecast129 kmESE

Nearby

Within 100 km, magnitude 1.5 and up: 166 in the 60 days after this one and 33 in the 30 days before it.

After

The first 60 of 166.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000fvp2 (also filed as ak021c6m5np7). Read Wed, Sep 23, 2026, 6:24 AM UTC.