Alaska earthquakes

M3.0 earthquake 255 km ESE of Chiniak, Alaska

A magnitude 3.0 earthquake struck 255 km ESE of Chiniak, Alaska on Sun, Aug 10, 2025, 6:11 AM AKDT (14:11 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M3.2 249 km ESE of Chiniak, 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: 3.0 (ml), minor
Local time: Sun, Aug 10, 2025, 6:11 AM AKDT
UTC: 2025-08-10 14:11:52 UTC
Depth: 10.0 km (6.2 mi), shallow
Epicenter: 56.497° N, 148.599° 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 7.9 km horizontally, 2.0 km in depth
Magnitude uncertainty: ±0.06
Depth from: Operator assigned
Station coverage gap: 200°, poorly surrounded by stations
Stations used: 23

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 8 in the 60 days after this one and 7 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000r0f9 (also filed as ak025a7dplbw). Read Tue, Sep 29, 2026, 5:33 PM UTC.