Alaska earthquakes

M4.2 earthquake 258 km SE of Chiniak, Alaska

A magnitude 4.2 earthquake struck 258 km SE of Chiniak, Alaska on Sun, Mar 3, 2019, 5:38 AM AKST (14:38 UTC), 15 km (9 mi) below the surface.

A larger quake followed: M4.8 232 km SE 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: 4.2 (mb), light
Local time: Sun, Mar 3, 2019, 5:38 AM AKST
UTC: 2019-03-03 14:38:08 UTC
Depth: 15.0 km (9.3 mi), shallow
Epicenter: 56.304° N, 148.768° W
Region: Alaska
Felt reports: 1
Tsunami flag: No
Status: Reviewed by a seismologist

Did you feel it?

1 person reported to the USGS what they felt; the strongest reported shaking was II, weak shaking.

How well it is located

Reviewed by a seismologist.

Location uncertainty: About 7.5 km horizontally, 5.2 km in depth
Magnitude uncertainty: ±0.12
Depth from: From location
Station coverage gap: 149°
Stations used: 35

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 186 in the 60 days after this one and 13 in the 30 days before it.

After

The first 60 of 186.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us1000ja4x (also filed as aacse0192urvqqg, ak0192urvqqg). Read Tue, Sep 22, 2026, 9:16 PM UTC.