Alaska earthquakes

M3.6 earthquake 2 km WNW of Ninilchik, Alaska

A magnitude 3.6 earthquake struck 2 km WNW of Ninilchik, Alaska on Tue, May 4, 2021, 4:23 PM AKDT (00:23 UTC), 47 km (29 mi) below the surface.

A larger quake followed: M3.7 50 km WNW of Nanwalek, Alaska. This one was a foreshock.

Ninilchik forecast More in Alaska

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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: 3.6 (ml), minor
Local time: Tue, May 4, 2021, 4:23 PM AKDT
UTC: 2021-05-05 00:23:39 UTC
Depth: 46.8 km (29.1 mi), shallow
Epicenter: 60.055° N, 151.706° W
Region: Alaska
Felt reports: 10
Tsunami flag: No
Status: Reviewed by a seismologist

Did you feel it?

10 people reported to the USGS what they felt; the strongest reported shaking was III, weak shaking.

How well it is located

Reviewed by a seismologist.

Stations used: 116

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 200 in the 60 days after this one and 0 in the 30 days before it.

After

The first 60 of 200.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0215qqbe5w (also filed as us7000e075). Read Thu, Sep 24, 2026, 8:59 AM UTC.