A magnitude-4.0 earthquake rattled parts of Southern California early Sunday morning.  The quake near Ontario was reported ...
A 4.0 earthquake hit near Ontario, CA, felt across the region with minor aftershocks; no significant damage reported.
ONTARIO, Calif. (KABC) -- A magnitude 4.0 earthquake rattled the Ontario area Sunday morning, jolting some residents awake.
A magnitude 3.1 earthquake was reported less than a mile south of Ontario International Airport early Wednesday afternoon, ...
More than a dozen aftershocks followed a 3.9-magnitude earthquake that struck the Inland ... had an epicenter about three miles southwest of Ontario, according to the U.S. Geological Survey.