Alaska earthquakes

M2.9 earthquake 242 km ESE of Chiniak, Alaska

A magnitude 2.9 earthquake struck 242 km ESE of Chiniak, Alaska on Sun, May 6, 2018, 4:59 PM AKDT (00:59 UTC), 20 km (13 mi) below the surface.

A larger quake followed: M3.2 199 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: 2.9 (ml), micro
Local time: Sun, May 6, 2018, 4:59 PM AKDT
UTC: 2018-05-07 00:59:51 UTC
Depth: 20.5 km (12.7 mi), shallow
Epicenter: 56.591° N, 148.752° 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 8.1 km horizontally, 11.0 km in depth
Magnitude uncertainty: ±0.06
Depth from: From location
Station coverage gap: 228°, poorly surrounded by stations
Stations used: 30

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 us1000e2hi (also filed as ak0185u1lu80, ak19428003). Read Tue, Sep 22, 2026, 5:28 AM UTC.