4.2 magnitude earthquake strikes off Northern California coast

RIO DELL, Calif. -- A preliminary-magnitude 4.2 earthquake struck just off the coast of Northern California on Monday morning, according to the U.S. Geological Survey.

RELATED: Bay Area Earthquake Tracker

The quake, whose epicenter was located 37 miles south of Eureka, occurred at 10:33 a.m. Pacific Standard Time, the USGS said.

There were no immediate reports of injuries or damage.