Alaska earthquakes

M2.8 earthquake 267 km ESE of Chiniak, Alaska

A magnitude 2.8 earthquake struck 267 km ESE of Chiniak, Alaska on Sat, Apr 14, 2018, 11:29 AM AKDT (19:29 UTC), 22 km (14 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: 2.8 (ml), micro
Local time: Sat, Apr 14, 2018, 11:29 AM AKDT
UTC: 2018-04-14 19:29:16 UTC
Depth: 22.2 km (13.8 mi), shallow
Epicenter: 56.346° N, 148.536° 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, 10.8 km in depth
Magnitude uncertainty: ±0.06
Depth from: From location
Station coverage gap: 205°, poorly surrounded by stations
Stations used: 51

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 us1000dnqu (also filed as ak19244236, ak0184sbdl2w). Read Sat, Sep 26, 2026, 6:32 AM UTC.