M2.1 earthquake 120 km SSE of Ugashik, Alaska

A magnitude 2.1 earthquake struck 120 km SSE of Ugashik, Alaska on Tue, Oct 12, 2021, 12:30 PM AKDT (20:30 UTC), 72 km (45 mi) below the surface.

A larger quake followed: M2.2 114 km E 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: 132 in the 60 days after this one and 67 in the 30 days before it.

The first 60 of 132.

From the USGS Earthquake Hazards Program and its partner networks, event ak021d3o92fj. Read Tue, Sep 22, 2026, 8:36 PM UTC.