M3.0 earthquake 36 km WNW of Valdez, Alaska

A magnitude 3.0 earthquake struck 36 km WNW of Valdez, Alaska on Tue, Aug 30, 2022, 2:28 AM AKDT (10:28 UTC), 20 km (12 mi) below the surface.

A larger quake followed: M4.8 Southern 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
3.0	ML, local (Richter)	Alaska Earthquake Center	Preferred · Preliminary
3.2	ML, local (Richter)	USGS National Earthquake Information Center	Reviewed · ±0.027 · 174 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: 103 in the 60 days after this one and 57 in the 30 days before it.

The first 60 of 103.

From the USGS Earthquake Hazards Program and its partner networks, event ak022b4e6fsg (also filed as us7000i3n1). Read Sat, Oct 3, 2026, 6:00 PM UTC.