Alaska earthquakes

M3.6 earthquake 295 km ESE of Chiniak, Alaska

A magnitude 3.6 earthquake struck 295 km ESE of Chiniak, Alaska on Fri, Apr 27, 2018, 4:14 PM AKDT (00:14 UTC), 21 km (13 mi) below the surface.

A larger quake followed: M4.0 261 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: 3.6 (ml), minor
Local time: Fri, Apr 27, 2018, 4:14 PM AKDT
UTC: 2018-04-28 00:14:29 UTC
Depth: 21.1 km (13.1 mi), shallow
Epicenter: 56.348° N, 148.003° 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 7.7 km horizontally, 10.1 km in depth
Magnitude uncertainty: ±0.04
Depth from: From location
Station coverage gap: 190°, poorly surrounded by stations
Stations used: 143

Nearest places

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

Anchorage, AlaskaPopulation 289,600. Forecast552 kmSSE

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 us1000dtqw (also filed as ak0185f5i0sw, ak19292631). Read Tue, Sep 22, 2026, 10:55 AM UTC.