Alaska earthquakes

M3.1 earthquake 264 km W of Adak, Alaska

A magnitude 3.1 earthquake struck 264 km W of Adak, Alaska on Sat, Aug 27, 2022, 2:28 AM GMT+12 (14:28 UTC), 64 km (40 mi) below the surface.

A larger quake followed: M5.0 Rat Islands, Aleutian Islands, Alaska. This one was a foreshock.

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude: 3.1 (ml), minor
Local time: Sat, Aug 27, 2022, 2:28 AM GMT+12
UTC: 2022-08-26 14:28:17 UTC
Depth: 63.6 km (39.5 mi), shallow
Epicenter: 51.503° N, 179.581° 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 11.7 km horizontally, 23.0 km in depth
Magnitude uncertainty: ±0.09
Depth from: From location
Station coverage gap: 148°
Stations used: 22

Nearby

Within 100 km, magnitude 1.5 and up: 121 in the 60 days after this one and 80 in the 30 days before it.

After

The first 60 of 121.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000ir7j (also filed as ak022axuepf8). Read Tue, Sep 29, 2026, 11:34 PM UTC.