M1.7 earthquake 24 km S of Halibut Cove, Alaska

A magnitude 1.7 earthquake struck 24 km S of Halibut Cove, Alaska on Fri, Mar 12, 2021, 8:31 PM AKST (05:31 UTC), 39 km (24 mi) below the surface.

A larger quake followed: M3.8 41 km WNW of Nanwalek, 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: 152 in the 60 days after this one and 117 in the 30 days before it.

The first 60 of 152.

From the USGS Earthquake Hazards Program and its partner networks, event ak0213b5uvxh. Read Thu, Oct 1, 2026, 12:58 AM UTC.