Alaska earthquakes

M3.1 earthquake 248 km SE of Chiniak, Alaska

A magnitude 3.1 earthquake struck 248 km SE of Chiniak, Alaska on Sun, May 3, 2020, 12:11 AM AKDT (08:11 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M3.7 229 km SE 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: 3.1 (ml), minor
Local time: Sun, May 3, 2020, 12:11 AM AKDT
UTC: 2020-05-03 08:11:31 UTC
Depth: 10.0 km (6.2 mi), shallow
Epicenter: 56.087° N, 149.303° 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: ±0.05
Depth from: Operator assigned
Station coverage gap: 207°, poorly surrounded by stations
Stations used: 89

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 48 in the 60 days after this one and 25 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us700099ea (also filed as ak0205p7gxfz). Read Thu, Sep 24, 2026, 3:38 PM UTC.