Alaska earthquakes

M3.6 earthquake 292 km ESE of Chiniak, Alaska

A magnitude 3.6 earthquake struck 292 km ESE of Chiniak, Alaska on Sat, May 12, 2018, 4:30 PM AKDT (00:30 UTC), 17 km (10 mi) below the surface.

A larger quake followed: M4.1 266 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 (mb), minor
Local time: Sat, May 12, 2018, 4:30 PM AKDT
UTC: 2018-05-13 00:30:52 UTC
Depth: 16.8 km (10.4 mi), shallow
Epicenter: 56.591° N, 147.830° 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 7.1 km horizontally, 7.1 km in depth
Magnitude uncertainty: ±0.35
Depth from: From location
Station coverage gap: 168°
Stations used: 106

Nearest places

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

Anchorage, AlaskaPopulation 289,600. Forecast528 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 us1000e3v6 (also filed as ak01863ynpki, ak19474597). Read Tue, Sep 22, 2026, 2:50 PM UTC.