M3.2 earthquake 67 km S of Shungnak, Alaska

A magnitude 3.2 earthquake struck 67 km S of Shungnak, Alaska on Mon, Dec 6, 2021, 11:21 PM AKST (08:21 UTC), 9 km (6 mi) below the surface.

Map

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

Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.

Mag.	Scale	Computed by	Notes
3.2	ML, local (Richter)	Alaska Earthquake Center	Preferred · Preliminary
3.4	ML, local (Richter)	USGS National Earthquake Information Center	Reviewed · ±0.035 · 106 stations

The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.

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: 18 in the 60 days after this one and 9 in the 30 days before it.

From the USGS Earthquake Hazards Program and its partner networks, event ak021fo35c0q (also filed as us6000g9zd). Read Mon, Oct 5, 2026, 2:31 PM UTC.