A magnitude-4.5 earthquake struck the Greater Los Angeles area, the U.S. Geological Survey said in an e-mailed statement.

The epicenter of the temblor, which hit today just before 1 a.m. local time, was 45 kilometers (28 miles) northwest of Los Angeles Civic Center and seven kilometers north-northwest of Chatsworth, said the USGS, which measures seismological events.

The quake was felt by people across Los Angeles County, the Associated Press reported. Residents in the Los Angeles area were awakened and some items were knocked off shelves and walls, AP said.

There were no immediate reports of injuries or major damage, AP said, citing Los Angeles Fire Department spokesman Brian Humphrey.