Alaska earthquakes

M4.2 earthquake 256 km ESE of Chiniak, Alaska

A magnitude 4.2 earthquake struck 256 km ESE of Chiniak, Alaska on Thu, Jun 6, 2019, 5:24 PM AKDT (01:24 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.

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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
4.2 (mb), light
Local time
UTC
2019-06-07 01:24:58 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
56.455° N, 148.627° 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 4.7 km horizontally, 2.0 km in depth
Magnitude uncertainty
±0.23
Depth from
Operator assigned
Station coverage gap
155°
Stations used
43

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 147 in the 60 days after this one and 71 in the 30 days before it.

After

The first 60 of 147.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us70003wjb (also filed as aacse01979bnnvj, ak01979bnnvj). Read Tue, Sep 29, 2026, 2:36 AM UTC.