Alaska earthquakes

M2.7 earthquake 231 km SE of Chiniak, Alaska

A magnitude 2.7 earthquake struck 231 km SE of Chiniak, Alaska on Sat, Apr 14, 2018, 10:51 PM AKDT (06:51 UTC), 21 km (13 mi) below the surface.

A larger quake followed: M5.5 276 km ESE 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: Sat, Apr 14, 2018, 10:51 PM AKDT
UTC: 2018-04-15 06:51:50 UTC
Depth: 21.1 km (13.1 mi), shallow
Epicenter: 56.232° N, 149.429° 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 9.1 km horizontally, 12.1 km in depth
Magnitude uncertainty: ±0.06
Depth from: From location
Station coverage gap: 258°, poorly surrounded by stations
Stations used: 28

Nearest places

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

Nearby

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

After

The first 60 of at least 200.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us1000dner (also filed as ak19242867, ak0184trb333). Read Fri, Sep 25, 2026, 11:51 PM UTC.