Alaska earthquakes

M2.7 earthquake 219 km SE of Chiniak, Alaska

A magnitude 2.7 earthquake struck 219 km SE of Chiniak, Alaska on Tue, Mar 13, 2018, 1:36 PM AKDT (21:36 UTC), 29 km (18 mi) below the surface.

A larger quake followed: M2.9 231 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: Tue, Mar 13, 2018, 1:36 PM AKDT
UTC: 2018-03-13 21:36:10 UTC
Depth: 28.6 km (17.8 mi), shallow
Epicenter: 56.007° N, 150.184° 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 9.0 km horizontally, 13.6 km in depth
Magnitude uncertainty: ±0.07
Depth from: From location
Station coverage gap: 213°, poorly surrounded by stations
Stations used: 43

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 us1000d5ip (also filed as ak0183bfetzu, ak18701297). Read Tue, Sep 22, 2026, 8:06 PM UTC.