Alaska earthquakes

M2.9 earthquake 230 km SE of Chiniak, Alaska

A magnitude 2.9 earthquake struck 230 km SE of Chiniak, Alaska on Mon, Oct 29, 2018, 11:09 PM AKDT (07:09 UTC), 22 km (14 mi) below the surface.

A larger quake followed: M3.1 255 km ESE 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: 2.9 (ml), micro
Local time: Mon, Oct 29, 2018, 11:09 PM AKDT
UTC: 2018-10-30 07:09:59 UTC
Depth: 22.5 km (14.0 mi), shallow
Epicenter: 56.344° N, 149.286° 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 8.7 km horizontally, 10.2 km in depth
Magnitude uncertainty: ±0.07
Depth from: From location
Station coverage gap: 221°, poorly surrounded by stations
Stations used: 36

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 189 in the 60 days after this one and 10 in the 30 days before it.

After

The first 60 of 189.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us1000hp49 (also filed as ak20335118, aacse018dx82c21, ak018dx82c21). Read Tue, Sep 22, 2026, 7:17 AM UTC.