Alaska earthquakes

M3.2 earthquake 83 km SSW of Unalaska, Alaska

A magnitude 3.2 earthquake struck 83 km SSW of Unalaska, Alaska on Wed, Jul 26, 2023, 2:45 PM AKDT (22:45 UTC), 35 km (22 mi) below the surface.

A larger quake followed: M4.5 93 km S of Unalaska, Alaska. This one was a foreshock.

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Map

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

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The earthquake

Magnitude
3.2 (ml), minor
Local time
UTC
2023-07-26 22:45:53 UTC
Depth
35.0 km (21.7 mi), shallow
Epicenter
53.145° N, 166.830° 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 2.5 km horizontally, 2.0 km in depth
Magnitude uncertainty
±0.12
Depth from
Operator assigned
Station coverage gap
205°, poorly surrounded by stations
Stations used
21

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 149 in the 60 days after this one and 85 in the 30 days before it.

After

The first 60 of 149.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000ky06 (also filed as ak0239ipm4wk). Read Tue, Sep 29, 2026, 11:28 PM UTC.