Alaska earthquakes

M2.6 earthquake 245 km W of Adak, Alaska

A magnitude 2.6 earthquake struck 245 km W of Adak, Alaska on Tue, Sep 7, 2021, 12:32 PM GMT+12 (00:32 UTC), 174 km (108 mi) below the surface.

A larger quake followed: M5.1 Rat Islands, Aleutian Islands, Alaska. This one was a foreshock.

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The earthquake

Magnitude: 2.6 (ml), micro
Local time: Tue, Sep 7, 2021, 12:32 PM GMT+12
UTC: 2021-09-07 00:32:31 UTC
Depth: 174.0 km (108.1 mi), intermediate-depth
Epicenter: 51.954° N, 179.806° E
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 8.2 km horizontally, 2.8 km in depth
Magnitude uncertainty: ±0.10
Depth from: From location
Station coverage gap: 158°
Stations used: 22

Nearby

Within 100 km, magnitude 1.5 and up: 86 in the 60 days after this one and 74 in the 30 days before it.

After

The first 60 of 86.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000fqkh (also filed as ak021bhgjo21). Read Thu, Sep 24, 2026, 10:19 AM UTC.