Alaska earthquakes

M3.3 earthquake 205 km SE of Perryville, Alaska

A magnitude 3.3 earthquake struck 205 km SE of Perryville, Alaska on Wed, Sep 29, 2021, 3:31 AM AKDT (11:31 UTC), 9 km (6 mi) below the surface.

A larger quake followed: M3.9 201 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.

Open the live map with earthquakes

The earthquake

Magnitude: 3.3 (ml), minor
Local time: Wed, Sep 29, 2021, 3:31 AM AKDT
UTC: 2021-09-29 11:31:06 UTC
Depth: 9.0 km (5.6 mi), shallow
Epicenter: 54.655° N, 156.774° 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: 82

Nearest places

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

Sand Point, AlaskaPopulation 1,064. Forecast249 kmESE

Nearby

Within 100 km, magnitude 1.5 and up: 37 in the 60 days after this one and 45 in the 30 days before it.

After

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021ci0wubo (also filed as us6000fq3s). Read Tue, Sep 22, 2026, 9:15 PM UTC.