Alaska earthquakes

M3.1 earthquake 238 km SE of Chiniak, Alaska

A magnitude 3.1 earthquake struck 238 km SE of Chiniak, Alaska on Tue, Oct 30, 2018, 6:26 AM AKDT (14:26 UTC), 23 km (14 mi) below the surface.

A larger quake followed: M3.4 238 km SE of Chiniak, Alaska. This one was a foreshock.

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Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude: 3.1 (ml), minor
Local time: Tue, Oct 30, 2018, 6:26 AM AKDT
UTC: 2018-10-30 14:26:50 UTC
Depth: 22.8 km (14.2 mi), shallow
Epicenter: 56.416° N, 149.021° 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 7.8 km horizontally, 10.4 km in depth
Magnitude uncertainty: ±0.04
Depth from: From location
Station coverage gap: 187°, poorly surrounded by stations
Stations used: 98

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 188 in the 60 days after this one and 11 in the 30 days before it.

After

The first 60 of 188.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us2000i48e (also filed as ak20304889, aacse018dxcbwvv, ak018dxcbwvv). Read Tue, Sep 22, 2026, 3:51 AM UTC.