Alaska earthquakes

M3.8 earthquake 249 km W of Adak, Alaska

A magnitude 3.8 earthquake struck 249 km W of Adak, Alaska on Tue, May 10, 2022, 2:50 AM GMT+12 (14:50 UTC), 93 km (58 mi) below the surface.

A larger quake followed: M4.5 Rat Islands, Aleutian Islands, Alaska. This one was a foreshock.

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The earthquake

Magnitude: 3.8 (mb), minor
Local time: Tue, May 10, 2022, 2:50 AM GMT+12
UTC: 2022-05-09 14:50:50 UTC
Depth: 93.0 km (57.8 mi), intermediate-depth
Epicenter: 51.823° N, 179.751° 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 5.5 km horizontally, 3.7 km in depth
Magnitude uncertainty: ±0.14
Depth from: From location
Station coverage gap: 114°
Stations used: 36

Nearby

Within 100 km, magnitude 1.5 and up: at least 200 in the 60 days after this one and 102 in the 30 days before it.

After

The first 60 of at least 200.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000hlhx (also filed as ak0225xkynym). Read Tue, Sep 29, 2026, 10:13 PM UTC.