Alaska earthquakes

M2.7 earthquake 221 km SE of Chiniak, Alaska

A magnitude 2.7 earthquake struck 221 km SE of Chiniak, Alaska on Thu, Apr 26, 2018, 9:16 AM AKDT (17:16 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M2.9 228 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: Thu, Apr 26, 2018, 9:16 AM AKDT
UTC: 2018-04-26 17:16:25 UTC
Depth: 10.0 km (6.2 mi), shallow
Epicenter: 56.090° N, 149.952° 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 4.2 km horizontally, 2.0 km in depth
Magnitude uncertainty: ±0.07
Depth from: Operator assigned
Station coverage gap: 197°, poorly surrounded by stations
Stations used: 38

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 us1000dv41 (also filed as ak0185c4k48c, ak19296668). Read Tue, Sep 22, 2026, 2:57 AM UTC.