Alaska earthquakes

M2.8 earthquake 54 km WSW of Atka, Alaska

A magnitude 2.8 earthquake struck 54 km WSW of Atka, Alaska on Tue, Jul 26, 2022, 11:00 PM HADT (08:00 UTC), 88 km (55 mi) below the surface.

A larger quake followed: M4.2 83 km SSE of Atka, Alaska. This one was a foreshock.

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

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The earthquake

Magnitude: 2.8 (ml), micro
Local time: Tue, Jul 26, 2022, 11:00 PM HADT
UTC: 2022-07-27 08:00:52 UTC
Depth: 88.4 km (54.9 mi), intermediate-depth
Epicenter: 51.925° N, 174.865° 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 7.6 km horizontally, 18.3 km in depth
Magnitude uncertainty: ±0.13
Depth from: From location
Station coverage gap: 212°, poorly surrounded by stations
Stations used: 11

Nearby

Within 100 km, magnitude 1.5 and up: 163 in the 60 days after this one and 167 in the 30 days before it.

After

The first 60 of 163.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000iil5 (also filed as ak0229k4jrmo). Read Wed, Sep 30, 2026, 11:08 PM UTC.