A magnitude 3.5 earthquake was reported Tuesday at 4:54 p.m. in Rialto, according to the U.S. Geological Survey.

A 3.5-magnitude temblor hit some 3.7 miles north-northwest of Rialto and about 4 miles north-northeast of Fontana. The depth ...

Earthquakes rattled the nation's two largest metropolitan areas Tuesday, sending a jolt across population centers of tens of ...