M2.7 earthquake 48 km NW of Valdez, Alaska

A magnitude 2.7 earthquake struck 48 km NW of Valdez, Alaska on Sun, Jul 4, 2021, 11:43 PM AKDT (07:43 UTC), 19 km (12 mi) below the surface.

A larger quake followed: M3.7 18 km ENE of Tatitlek, 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
2.7	ML, local (Richter)	Alaska Earthquake Center	Preferred · Preliminary
2.9	ML, local (Richter)	USGS National Earthquake Information Center	Reviewed · ±0.027 · 182 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: 79 in the 60 days after this one and 45 in the 30 days before it.

The first 60 of 79.

From the USGS Earthquake Hazards Program and its partner networks, event ak0218jqdxd7 (also filed as us7000eit7). Read Fri, Oct 2, 2026, 2:14 AM UTC.