M2.4 earthquake 264 km SE of Perryville, Alaska

A magnitude 2.4 earthquake struck 264 km SE of Perryville, Alaska on Fri, Aug 6, 2021, 4:38 PM AKDT (00:38 UTC), 61 km (38 mi) below the surface.

A larger quake followed: M5.1 200 km SE of Chignik, Alaska. This one was a foreshock.

Map

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

No one has reported feeling this quake to the USGS.

Reviewed by a seismologist.

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

Within 100 km, magnitude 1.5 and up: 40 in the 60 days after this one and 35 in the 30 days before it.

From the USGS Earthquake Hazards Program and its partner networks, event ak021a26x89v. Read Mon, Sep 28, 2026, 11:06 AM UTC.