Alaska earthquakes

M3.0 earthquake 234 km SE of Chiniak, Alaska

A magnitude 3.0 earthquake struck 234 km SE of Chiniak, Alaska on Tue, Oct 30, 2018, 4:58 PM AKDT (00:58 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M3.2 269 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: 3.0 (ml), minor
Local time: Tue, Oct 30, 2018, 4:58 PM AKDT
UTC: 2018-10-31 00:58:06 UTC
Depth: 10.0 km (6.2 mi), shallow
Epicenter: 55.952° N, 149.907° 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 8.5 km horizontally, 2.0 km in depth
Magnitude uncertainty: ±0.06
Depth from: Operator assigned
Station coverage gap: 215°, poorly surrounded by stations
Stations used: 65

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 171 in the 60 days after this one and 28 in the 30 days before it.

After

The first 60 of 171.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us1000hq3e (also filed as ak20305803, ak018dyrpyku, aacse018dyrpyku). Read Tue, Sep 22, 2026, 7:47 PM UTC.