M1.7 earthquake 19 km ESE of Clam Gulch, Alaska

A magnitude 1.7 earthquake struck 19 km ESE of Clam Gulch, Alaska on Wed, Mar 10, 2021, 2:38 PM AKST (23:38 UTC), 55 km (34 mi) below the surface.

A larger quake followed: M3.6 2 km WNW of Ninilchik, 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: at least 201 in the 60 days after this one and 156 in the 30 days before it.

The first 60 of at least 201.

From the USGS Earthquake Hazards Program and its partner networks, event ak02136i05bu. Read Wed, Sep 30, 2026, 1:42 AM UTC.