Alaska earthquakes

M3.3 earthquake 288 km SE of Chiniak, Alaska

A magnitude 3.3 earthquake struck 288 km SE of Chiniak, Alaska on Thu, Jul 4, 2019, 2:46 AM AKDT (10:46 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M4.4 259 km ESE of Chiniak, Alaska. This one was a foreshock.

Map

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The earthquake

Magnitude: 3.3 (ml), minor
Local time: Thu, Jul 4, 2019, 2:46 AM AKDT
UTC: 2019-07-04 10:46:56 UTC
Depth: 9.9 km (6.1 mi), shallow
Epicenter: 55.660° N, 149.190° 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 8.4 km horizontally, 7.8 km in depth
Magnitude uncertainty: ±0.05
Depth from: From location
Station coverage gap: 208°, poorly surrounded by stations
Stations used: 43

Nearby

Within 100 km, magnitude 1.5 and up: 135 in the 60 days after this one and 67 in the 30 days before it.

After

The first 60 of 135.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us700049v4 (also filed as aacse0198i4nntq, ak0198i4nntq). Read Sun, Sep 27, 2026, 2:55 PM UTC.