M4.0 earthquake 19 km WSW of Salcha, Alaska

A magnitude 4.0 earthquake struck 19 km WSW of Salcha, Alaska on Thu, Nov 17, 2022, 1:34 PM AKST (22:34 UTC), 15 km (9 mi) below the surface.

A larger quake followed: M4.4 44 km SSW of South Van Horn, 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
4.0	Mwr, regional moment	Alaska Earthquake Center	Preferred · Preliminary
4.0	Mwr, regional moment	USGS National Earthquake Information Center	Reviewed · ±0.025 · 151 stations

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

277 people reported to the USGS what they felt; the strongest reported shaking was IV, light shaking.

How the rock slipped, from the moment tensor, and the USGS estimate of landslides and liquefaction.

Reviewed by a seismologist.

Distance and direction from each place to the epicenter, with its forecast.

Within 100 km, magnitude 1.5 and up: 46 in the 60 days after this one and 11 in the 30 days before it.

From the USGS Earthquake Hazards Program and its partner networks, event ak022er8tbc2 (also filed as us7000iqk1). Read Sat, Oct 3, 2026, 6:47 AM UTC.