Alaska earthquakes

M3.6 earthquake 208 km SE of Chiniak, Alaska

A magnitude 3.6 earthquake struck 208 km SE of Chiniak, Alaska on Tue, Dec 10, 2019, 1:50 PM AKST (22:50 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M5.1 270 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: 3.6 (ml), minor
Local time: Tue, Dec 10, 2019, 1:50 PM AKST
UTC: 2019-12-10 22:50:38 UTC
Depth: 10.0 km (6.2 mi), shallow
Epicenter: 56.155° N, 150.125° 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 4.7 km horizontally, 2.0 km in depth
Magnitude uncertainty: ±0.04
Depth from: Operator assigned
Station coverage gap: 226°, poorly surrounded by stations
Stations used: 47

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 39 in the 60 days after this one and 18 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us60006q00 (also filed as ak019fta9pt4). Read Sun, Sep 27, 2026, 1:18 PM UTC.