A magnitude-3.9 earthquake struck the Morongo Valley area shortly before 10 a.m. on Wednesday, the U.S. Geological Survey reported.
The temblor, which was initially reported to be a 4.1, was centered in the San Bernardino Mountains, about 10 miles northwest of Morongo Valley and 11 miles southeast of Big Bear City, USGS reported.
It struck at a depth of 6 miles.
Weak-to-light shaking was felt as far away as northern San Diego County and the California-Arizona border, according to USGS.
There were no initial reports of any damages or injuries.
The area where the earthquake struck is located about 90 miles east of Los Angeles.