Alaska earthquakes

M3.3 earthquake 269 km SE of Chiniak, Alaska

A magnitude 3.3 earthquake struck 269 km SE of Chiniak, Alaska on Fri, Oct 11, 2019, 8:26 PM AKDT (04:26 UTC), 10 km (6 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: 3.3 (ml), minor
Local time: Fri, Oct 11, 2019, 8:26 PM AKDT
UTC: 2019-10-12 04:26:02 UTC
Depth: 10.0 km (6.2 mi), shallow
Epicenter: 56.243° N, 148.633° 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 9.5 km horizontally, 2.0 km in depth
Magnitude uncertainty: ±0.06
Depth from: Operator assigned
Station coverage gap: 263°, poorly surrounded by stations
Stations used: 26

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 59 in the 60 days after this one and 19 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us700063uz (also filed as ak019d3ep88j). Read Mon, Sep 28, 2026, 3:44 PM UTC.