Alaska earthquakes

M1.6 earthquake 22 km NW of Ninilchik, Alaska

A magnitude 1.6 earthquake struck 22 km NW of Ninilchik, Alaska on Sat, Nov 20, 2021, 11:18 PM AKST (08:18 UTC), 78 km (49 mi) below the surface.

A larger quake followed: M1.9 33 km E of Pedro Bay, Alaska. This one was a foreshock.

Ninilchik forecastMore 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
1.6 (ml), micro
Local time
UTC
2021-11-21 08:18:09 UTC
Depth
78.2 km (48.6 mi), intermediate-depth
Epicenter
60.172° N, 151.984° 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.

Stations used
45

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 ak021exmj5ar. Read Wed, Sep 23, 2026, 2:36 PM UTC.