3.9-magnitude earthquake strikes Riverside County 4 miles northwest of Murrieta

( earthquaketrack.com )

A 3.9 magnitude earthquake struck Tuesday in the Riverside County area.

The U.S. Geological Survey (USGS) says the quake was reported at 1:21 p.m. about a mile east of Wildomar and about 4 miles northwest of Murrieta.

Related: Seismologist Dr. Lucy Jones on preparing for earthquakes

It was recorded at a depth of about 8.8 miles.

According to the USGS "Did You Feel It?" map, the quake was felt as far north as San Bernardino and as far northwest as Los Angeles.

There were no immediate reports of damage. While there are many variables involved, geologists say damage does not usually occur until the earthquake magnitude reaches somewhere above 4 or 5.

USGS provides information about earthquakes by state and preparedness information, including helpful information for those in California.