Alaska earthquakes

M3.7 earthquake 212 km SE of Chiniak, Alaska

A magnitude 3.7 earthquake struck 212 km SE of Chiniak, Alaska on Thu, Nov 8, 2018, 9:17 AM AKST (18:17 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M3.8 268 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: 3.7 (ml), minor
Local time: Thu, Nov 8, 2018, 9:17 AM AKST
UTC: 2018-11-08 18:17:02 UTC
Depth: 10.0 km (6.2 mi), shallow
Epicenter: 56.124° N, 150.103° 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, 2.0 km in depth
Magnitude uncertainty: ±0.05
Depth from: Operator assigned
Station coverage gap: 223°, poorly surrounded by stations
Stations used: 73

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 169 in the 60 days after this one and 30 in the 30 days before it.

After

The first 60 of 169.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us1000hpbi (also filed as ak20335871, ak018ecahqi8, aacse018ecahqi8). Read Tue, Sep 22, 2026, 7:04 AM UTC.