M3.2 earthquake 22 km SSE of King Salmon, Alaska

A magnitude 3.2 earthquake struck 22 km SSE of King Salmon, Alaska on Sat, Nov 20, 2021, 9:23 AM AKST (18:23 UTC), 192 km (119 mi) below the surface.

A larger quake followed: M4.3 62 km SE of King Salmon, Alaska. This one was a foreshock.

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
3.0	ML, local (Richter)	USGS National Earthquake Information Center	Reviewed · ±0.115 · 10 stations

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: 41 in the 60 days after this one and 13 in the 30 days before it.

From the USGS Earthquake Hazards Program and its partner networks, event ak021ew4z74t (also filed as us7000fvsu). Read Sat, Oct 3, 2026, 3:08 AM UTC.