Alaska earthquakes

M3.2 earthquake 240 km SE of Chiniak, Alaska

A magnitude 3.2 earthquake struck 240 km SE of Chiniak, Alaska on Mon, May 28, 2018, 7:57 PM AKDT (03:57 UTC), 21 km (13 mi) below the surface.

A larger quake followed: M4.2 250 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: 3.2 (ml), minor
Local time: Mon, May 28, 2018, 7:57 PM AKDT
UTC: 2018-05-29 03:57:40 UTC
Depth: 21.1 km (13.1 mi), shallow
Epicenter: 56.383° N, 149.034° 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 7.7 km horizontally, 9.8 km in depth
Magnitude uncertainty: ±0.05
Depth from: From location
Station coverage gap: 180°
Stations used: 87

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 200 in the 60 days after this one and 0 in the 30 days before it.

After

The first 60 of 200.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us1000ej57 (also filed as ak19684431, aacse0186uh7bn2, ak0186uh7bn2). Read Mon, Sep 21, 2026, 8:23 PM UTC.