A magnitude 4.2 earthquake hit San Bernardino County early Tuesday, sending shudders across the region, authorities said.

The quake occurred at 1:53 a.m. and was centered about three miles north of Wrightwood, a remote community about 80 miles northwest of Los Angeles, the U.S. Geological Survey said on its Web site.

The quake was strong enough to wake people as far away as the north Los Angeles suburb of Glendale.

Bonnie Curtis, a dispatch supervisor with the San Bernardino County Fire Department, said there were no immediate reports of damage or injuries.