M2.8 earthquake 21km NE of Trona, CA

A magnitude 2.8 earthquake struck 21km NE of Trona, CA on Fri, Nov 13, 1987, 11:56 PM PST (07:56 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M2.8 42km ENE of Trona, CA. 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: 105 in the 60 days after this one and 56 in the 30 days before it.

The first 60 of 105.

From the USGS Earthquake Hazards Program and its partner networks, event ci735043. Read Tue, Sep 22, 2026, 11:23 AM UTC.