Alaska earthquakes

M2.7 earthquake 257 km SE of Chiniak, Alaska

A magnitude 2.7 earthquake struck 257 km SE of Chiniak, Alaska on Sat, Jan 27, 2018, 5:14 PM AKST (02:14 UTC), 7 km (5 mi) below the surface.

A larger quake followed: M5.1 233 km SE of Chiniak, Alaska. This one was a foreshock.

Womens Bay forecast More in Alaska

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: Sat, Jan 27, 2018, 5:14 PM AKST
UTC: 2018-01-28 02:14:22 UTC
Depth: 7.5 km (4.6 mi), shallow
Epicenter: 55.715° N, 149.869° 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 10.8 km horizontally, 10.0 km in depth
Magnitude uncertainty: ±0.09
Depth from: From location
Station coverage gap: 297°, poorly surrounded by stations
Stations used: 16

Nearest places

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

Womens Bay, AlaskaPopulation 719. Forecast278 kmSE

Nearby

Within 100 km, magnitude 1.5 and up: at least 202 in the 60 days after this one and at least 200 in the 30 days before it.

After

The first 60 of at least 202.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us1000ch5y (also filed as ak0181acbne3, ak18360067). Read Mon, Sep 28, 2026, 8:27 PM UTC.