M3.3 earthquake 246 km SSE of Cordova, Alaska

A magnitude 3.3 earthquake struck 246 km SSE of Cordova, Alaska on Tue, Nov 17, 1987, 6:51 AM AKST (15:51 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M3.6 242 km WSW 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: 132 in the 60 days after this one and 14 in the 30 days before it.

The first 60 of 132.

From the USGS Earthquake Hazards Program and its partner networks, event usp0003a71. Read Tue, Sep 22, 2026, 8:58 AM UTC.