Magnitude-4.1 Earthquake near Palomar Observatory

A moderate earthquake struck early Monday in a remote area of the Cleveland National Forest in northern San Diego County.
The U.S. Geological Survey says the magnitude-4.1 quake struck at 4:35 a.m. about 10 miles north of the Palomar Observatory and about 20 miles east of the Riverside County community of Temecula.

The observatory operated by the California Institute of Technology in Pasadena was closed when the quake struck.

Caltech seismologist Anthony Guarino says the quake was felt from San Diego to Palm Desert.