M3.9 earthquake 191 km WSW of Yakutat, Alaska

A magnitude 3.9 earthquake struck 191 km WSW of Yakutat, Alaska on Mon, Nov 30, 1987, 3:14 PM AKST (00:14 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M4.2 246 km SW 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: 90 in the 60 days after this one and 70 in the 30 days before it.

The first 60 of 90.

From the USGS Earthquake Hazards Program and its partner networks, event usp0003arn. Read Tue, Sep 22, 2026, 9:13 AM UTC.