Alaska earthquakes

M3.2 earthquake 169 km WSW of Nikolski, Alaska

A magnitude 3.2 earthquake struck 169 km WSW of Nikolski, Alaska on Sun, Aug 21, 2022, 3:38 PM HADT (00:38 UTC), 79 km (49 mi) below the surface.

A larger quake followed: M4.8 135 km SW of Nikolski, Alaska. This one was a foreshock.

Map

Where this earthquake was located, with the others nearby. Select one for its page.

Open the live map with earthquakes

The earthquake

Magnitude: 3.2 (ml), minor
Local time: Sun, Aug 21, 2022, 3:38 PM HADT
UTC: 2022-08-22 00:38:17 UTC
Depth: 78.8 km (49.0 mi), intermediate-depth
Epicenter: 52.232° N, 171.069° 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 9.4 km horizontally, 23.7 km in depth
Magnitude uncertainty: ±0.10
Depth from: From location
Station coverage gap: 206°, poorly surrounded by stations
Stations used: 14

Nearby

Within 100 km, magnitude 1.5 and up: 19 in the 60 days after this one and 18 in the 30 days before it.

After

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000ips8 (also filed as ak022aqzze27). Read Wed, Sep 30, 2026, 11:34 AM UTC.