M1.8 earthquake 80 km ESE of Akutan, Alaska

A magnitude 1.8 earthquake struck 80 km ESE of Akutan, Alaska on Tue, Sep 7, 2021, 1:34 PM AKDT (21:34 UTC), 47 km (29 mi) below the surface.

A larger quake followed: M1.9 Unimak Island region, 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: 133 in the 60 days after this one and 66 in the 30 days before it.

The first 60 of 133.

From the USGS Earthquake Hazards Program and its partner networks, event ak021bht29oe. Read Wed, Sep 23, 2026, 4:45 AM UTC.