Alaska earthquakes

M2.8 earthquake 299 km W of Adak, Alaska

A magnitude 2.8 earthquake struck 299 km W of Adak, Alaska on Tue, Apr 11, 2023, 5:36 AM GMT+12 (17:36 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M5.7 Rat Islands, Aleutian Islands, Alaska. This one was a foreshock.

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The earthquake

Magnitude: 2.8 (ml), micro
Local time: Tue, Apr 11, 2023, 5:36 AM GMT+12
UTC: 2023-04-10 17:36:50 UTC
Depth: 10.0 km (6.2 mi), shallow
Epicenter: 51.752° N, 179.029° 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 1.2 km horizontally, 1.9 km in depth
Magnitude uncertainty: ±0.10
Depth from: Operator assigned
Station coverage gap: 146°
Stations used: 11

Nearby

Within 100 km, magnitude 1.5 and up: 93 in the 60 days after this one and 34 in the 30 days before it.

After

The first 60 of 93.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000k3c3 (also filed as ak0234lo2wcy). Read Wed, Sep 30, 2026, 2:02 PM UTC.