Alaska earthquakes

M3.5 earthquake 273 km SE of Chiniak, Alaska

A magnitude 3.5 earthquake struck 273 km SE of Chiniak, Alaska on Sat, Oct 12, 2019, 9:00 PM AKDT (05:00 UTC), 21 km (13 mi) below the surface.

A larger quake followed: M4.6 239 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: 3.5 (ml), minor
Local time: Sat, Oct 12, 2019, 9:00 PM AKDT
UTC: 2019-10-13 05:00:33 UTC
Depth: 21.4 km (13.3 mi), shallow
Epicenter: 56.176° N, 148.629° 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 8.0 km horizontally, 10.1 km in depth
Magnitude uncertainty: ±0.05
Depth from: From location
Station coverage gap: 192°, poorly surrounded by stations
Stations used: 113

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 56 in the 60 days after this one and 22 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us70005ty5 (also filed as ak019d52ohsc). Read Sun, Sep 27, 2026, 6:07 PM UTC.