M3.5 earthquake 129 km SE of McCarthy, Alaska

A magnitude 3.5 earthquake struck 129 km SE of McCarthy, Alaska on Thu, Mar 8, 1979, 12:04 AM GMT-9 (09:04 UTC), 3 km (2 mi) below the surface.

A larger quake followed: M3.9 108 km NW of Yakutat, Alaska. This one was a foreshock.

Map

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

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: 72 in the 60 days after this one and 75 in the 30 days before it.

The first 60 of 72.

From the USGS Earthquake Hazards Program and its partner networks, event usp0000z7a. Read Tue, Sep 22, 2026, 3:10 AM UTC.