Alaska earthquakes

M2.9 earthquake 251 km SE of Chiniak, Alaska

A magnitude 2.9 earthquake struck 251 km SE of Chiniak, Alaska on Wed, Oct 24, 2018, 6:37 AM AKDT (14:37 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M3.2 221 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: 2.9 (ml), micro
Local time: Wed, Oct 24, 2018, 6:37 AM AKDT
UTC: 2018-10-24 14:37:12 UTC
Depth: 9.9 km (6.1 mi), shallow
Epicenter: 55.867° N, 149.668° 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 11.0 km horizontally, 9.3 km in depth
Magnitude uncertainty: ±0.07
Depth from: From location
Station coverage gap: 247°, poorly surrounded by stations
Stations used: 28

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 us2000i4zd (also filed as ak20307301, ak018dnf643a, aacse018dnf643a). Read Tue, Sep 22, 2026, 3:00 PM UTC.