Alaska earthquakes

M2.7 earthquake 235 km SE of Chiniak, Alaska

A magnitude 2.7 earthquake struck 235 km SE of Chiniak, Alaska on Wed, Mar 14, 2018, 4:31 PM AKDT (00:31 UTC), 12 km (7 mi) below the surface.

A larger quake followed: M2.9 262 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: 2.7 (ml), micro
Local time: Wed, Mar 14, 2018, 4:31 PM AKDT
UTC: 2018-03-15 00:31:38 UTC
Depth: 11.5 km (7.2 mi), shallow
Epicenter: 55.898° N, 150.021° 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 6.9 km horizontally, 8.6 km in depth
Magnitude uncertainty: ±0.08
Depth from: From location
Station coverage gap: 216°, poorly surrounded by stations
Stations used: 27

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 us1000d78p (also filed as ak0183edyf2p, ak18723616). Read Tue, Sep 22, 2026, 3:15 AM UTC.