Alaska earthquakes

M2.5 earthquake 21 km W of Adak, Alaska

A magnitude 2.5 earthquake struck 21 km W of Adak, Alaska on Thu, Dec 8, 2022, 4:23 PM HAST (02:23 UTC), 94 km (58 mi) below the surface.

A larger quake followed: M4.2 63 km WSW of Adak, 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: Thu, Dec 8, 2022, 4:23 PM HAST
UTC: 2022-12-09 02:23:33 UTC
Depth: 93.9 km (58.4 mi), intermediate-depth
Epicenter: 51.843° N, 176.936° 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 9.0 km horizontally, 1.7 km in depth
Magnitude uncertainty: ±0.13
Depth from: From location
Station coverage gap: 173°
Stations used: 14

Nearby

Within 100 km, magnitude 1.5 and up: at least 200 in the 60 days after this one and at least 200 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 us6000jazw (also filed as ak022franwn9). Read Wed, Sep 30, 2026, 10:40 PM UTC.