Alaska earthquakes

M2.5 earthquake 31 km WNW of Adak, Alaska

A magnitude 2.5 earthquake struck 31 km WNW of Adak, Alaska on Sat, Sep 10, 2022, 12:16 AM HADT (09:16 UTC), 125 km (78 mi) below the surface.

A larger quake followed: M5.1 57 km SE of Adak, Alaska. This one was a foreshock.

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude: 2.5 (ml), micro
Local time: Sat, Sep 10, 2022, 12:16 AM HADT
UTC: 2022-09-10 09:16:29 UTC
Depth: 125.4 km (77.9 mi), intermediate-depth
Epicenter: 51.941° N, 177.085° 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 9.7 km horizontally, 3.3 km in depth
Magnitude uncertainty: ±0.13
Depth from: From location
Station coverage gap: 172°
Stations used: 13

Nearby

Within 100 km, magnitude 1.5 and up: 185 in the 60 days after this one and 119 in the 30 days before it.

After

The first 60 of 185.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000iir7 (also filed as ak022bmkf6ia). Read Tue, Sep 29, 2026, 10:41 PM UTC.