Alaska earthquakes

M2.7 earthquake 25 km ENE of Cold Bay, Alaska

A magnitude 2.7 earthquake struck 25 km ENE of Cold Bay, Alaska on Wed, Sep 1, 2021, 1:45 AM AKDT (09:45 UTC), 124 km (77 mi) below the surface.

A larger quake followed: M3.0 76 km SE of King Cove, Alaska. This one was a foreshock.

King Cove 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: 2.7 (ml), micro
Local time: Wed, Sep 1, 2021, 1:45 AM AKDT
UTC: 2021-09-01 09:45:52 UTC
Depth: 124.4 km (77.3 mi), intermediate-depth
Epicenter: 55.313° N, 162.383° 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 3.7 km horizontally, 4.0 km in depth
Magnitude uncertainty: ±0.07
Depth from: From location
Station coverage gap: 102°
Stations used: 61

Nearest places

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

King Cove, AlaskaPopulation 1,009. Forecast28 kmN

Nearby

Within 100 km, magnitude 1.5 and up: 21 in the 60 days after this one and 25 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 us7000fbm4 (also filed as ak021b7orcat). Read Wed, Sep 23, 2026, 2:15 PM UTC.