Alaska earthquakes

M3.3 earthquake 256 km SE of Chiniak, Alaska

A magnitude 3.3 earthquake struck 256 km SE of Chiniak, Alaska on Sat, Jan 25, 2020, 12:07 AM AKST (09:07 UTC), 22 km (13 mi) below the surface.

A larger quake followed: M5.2 250 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: 3.3 (ml), minor
Local time: Sat, Jan 25, 2020, 12:07 AM AKST
UTC: 2020-01-25 09:07:12 UTC
Depth: 21.7 km (13.5 mi), shallow
Epicenter: 56.090° N, 149.125° 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 7.4 km horizontally, 10.1 km in depth
Magnitude uncertainty: ±0.05
Depth from: From location
Station coverage gap: 185°, poorly surrounded by stations
Stations used: 88

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 46 in the 60 days after this one and 18 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us70007lp7 (also filed as ak02015hucfn). Read Sun, Sep 27, 2026, 1:52 AM UTC.