M2.4 earthquake 15km WSW of Tecate, B.C., MX

A magnitude 2.4 earthquake struck 15km WSW of Tecate, B.C., MX on Fri, Aug 4, 1978, 1:15 PM PDT (20:15 UTC), 2 km (1 mi) below the surface.

A larger quake followed: M4.0 4km NE of Primo Tapia, B.C., MX. 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: 70 in the 60 days after this one and 23 in the 30 days before it.

The first 60 of 70.

From the USGS Earthquake Hazards Program and its partner networks, event ci10011710. Read Mon, Sep 28, 2026, 10:50 PM UTC.