M3.5 earthquake 257 km SW of Yakutat, Alaska

A magnitude 3.5 earthquake struck 257 km SW of Yakutat, Alaska on Mon, Nov 30, 1987, 11:22 PM AKST (08:22 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M3.8 183 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: 78 in the 60 days after this one and 84 in the 30 days before it.

The first 60 of 78.

From the USGS Earthquake Hazards Program and its partner networks, event usp0003asu. Read Tue, Sep 22, 2026, 10:27 AM UTC.