Alaska earthquakes

M3.0 earthquake 50 km ENE of Adak, Alaska

A magnitude 3.0 earthquake struck 50 km ENE of Adak, Alaska on Fri, Feb 18, 2022, 10:13 AM HAST (20:13 UTC), 156 km (97 mi) below the surface.

A larger quake followed: M4.2 14 km SW of Adak, Alaska. This one was a foreshock.

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The earthquake

Magnitude: 3.0 (ml), minor
Local time: Fri, Feb 18, 2022, 10:13 AM HAST
UTC: 2022-02-18 20:13:48 UTC
Depth: 156.0 km (96.9 mi), intermediate-depth
Epicenter: 52.112° N, 176.008° 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 16.6 km horizontally, 1.7 km in depth
Magnitude uncertainty: ±0.10
Depth from: From location
Station coverage gap: 165°
Stations used: 36

Nearby

Within 100 km, magnitude 1.5 and up: at least 199 in the 60 days after this one and 79 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 us6000h4vs (also filed as ak02229dbkf0). Read Sun, Sep 27, 2026, 2:10 AM UTC.