Alaska earthquakes

M2.8 earthquake 263 km ESE of Chiniak, Alaska

A magnitude 2.8 earthquake struck 263 km ESE of Chiniak, Alaska on Tue, May 15, 2018, 11:11 AM AKDT (19:11 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M2.9 240 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: 2.8 (ml), micro
Local time: Tue, May 15, 2018, 11:11 AM AKDT
UTC: 2018-05-15 19:11:28 UTC
Depth: 10.0 km (6.2 mi), shallow
Epicenter: 56.511° N, 148.434° 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 6.3 km horizontally, 2.0 km in depth
Magnitude uncertainty: ±0.05
Depth from: Operator assigned
Station coverage gap: 217°, poorly surrounded by stations
Stations used: 50

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 us1000e9gp (also filed as ak01867kxihs, ak19642291, aacse01867kxihs). Read Wed, Sep 23, 2026, 8:38 AM UTC.