Alaska earthquakes

M3.3 earthquake 248 km SE of Chiniak, Alaska

A magnitude 3.3 earthquake struck 248 km SE of Chiniak, Alaska on Thu, Jul 4, 2019, 7:56 PM AKDT (03:56 UTC), 20 km (13 mi) below the surface.

A larger quake followed: M3.9 255 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: 3.3 (ml), minor
Local time: Thu, Jul 4, 2019, 7:56 PM AKDT
UTC: 2019-07-05 03:56:55 UTC
Depth: 20.4 km (12.7 mi), shallow
Epicenter: 56.383° N, 148.875° 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 7.2 km horizontally, 8.4 km in depth
Magnitude uncertainty: ±0.04
Depth from: From location
Station coverage gap: 188°, poorly surrounded by stations
Stations used: 93

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 131 in the 60 days after this one and 68 in the 30 days before it.

After

The first 60 of 131.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us70004ap0 (also filed as aacse0198jo2z13, ak0198jo2z13). Read Wed, Sep 23, 2026, 7:21 PM UTC.