Alaska earthquakes

M2.8 earthquake 290 km SE of Chiniak, Alaska

A magnitude 2.8 earthquake struck 290 km SE of Chiniak, Alaska on Sun, Sep 26, 2021, 9:04 PM AKDT (05:04 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M3.0 295 km SE of Chiniak, Alaska. This one was a foreshock.

Anchorage 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, Sep 26, 2021, 9:04 PM AKDT
UTC: 2021-09-27 05:04:41 UTC
Depth: 10.0 km (6.2 mi), shallow
Epicenter: 55.934° N, 148.633° 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 11.4 km horizontally, 2.0 km in depth
Magnitude uncertainty: ±0.07
Depth from: Operator assigned
Station coverage gap: 300°, poorly surrounded by stations
Stations used: 32

Nearest places

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

Anchorage, AlaskaPopulation 289,600. Forecast592 kmS

Nearby

Within 100 km, magnitude 1.5 and up: 22 in the 60 days after this one and 17 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 us6000fxml (also filed as ak021cem3tye). Read Wed, Sep 23, 2026, 8:42 PM UTC.