Update: 4.5 earthquake shakes Los Angeles

An earthquake occurred 85 miles east of Los Angeles on Wednesday morning. The U.S. Geological Survey originally said the quake was a 4.8 magnitude, but it was subsequently downgraded to a 4.5.

A KNBC reporter described the quake as a "slow rumble."

The quake was centered about 2 miles north of Banning, California, and began at 6:42 a.m. local time. Banning is a city of 29,000 people in Riverside County.

A Riverside County sheriff's dispatcher in the region says it was felt but there were no immediate calls about damage or injury.

—The Associated Press contributed to this report.