Alaska earthquakes

M2.5 earthquake 236 km WSW of Adak, Alaska

A magnitude 2.5 earthquake struck 236 km WSW of Adak, Alaska on Fri, Apr 1, 2022, 2:54 AM HADT (11:54 UTC), 55 km (34 mi) below the surface.

A larger quake followed: M5.7 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.

Open the live map with earthquakes

The earthquake

Magnitude: 2.5 (ml), micro
Local time: Fri, Apr 1, 2022, 2:54 AM HADT
UTC: 2022-04-01 11:54:57 UTC
Depth: 54.9 km (34.1 mi), shallow
Epicenter: 51.324° N, 179.928° 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 5.2 km horizontally, 9.3 km in depth
Magnitude uncertainty: ±0.10
Depth from: From location
Station coverage gap: 203°, poorly surrounded by stations
Stations used: 22

Nearby

Within 100 km, magnitude 1.5 and up: at least 199 in the 60 days after this one and 64 in the 30 days before it.

After

The first 60 of at least 199.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000hlmb (also filed as ak02246os54o). Read Tue, Sep 29, 2026, 3:58 AM UTC.