USGS reports five earthquakes on the morning of July 31 in the Rialto area, ranging from 2.5 to 4.3 in magnitude.

The Rialto Fire Department reported that a series of small earthquakes shook the northwestern portion of the city Thursday ...

Multiple earthquakes rattled parts of San Bernardino and Riverside counties Thursday morning, according to the U.S.

A preliminary magnitude-4.3 earthquake and smaller quakes in the San Bernardino area produced shaking Thursday morning that was felt over widespread parts of Southern California. The quake, reported ...

A 4.3-magnitude earthquake struck the Inland Empire Thursday morning, according to the U.S. Geological Survey.

A preliminary 4.4-magnitude earthquake struck Southern California Thursday morning, according to the U.S. Geological Survey.

Several small earthquakes rattled residents across San Bernardino and Riverside counties in Southern California on Thursday ...

A magnitude 4.4 earthquake hit Southern California on Thursday morning, according to the U.S. Geological Society.

A series of earthquakes struck San Bernardino County Thursday, with the strongest south of Cal State San Bernardino.

LOS ANGELES — A magnitude 4.3 earthquake rumbled through Muscoy in San Bernardino County on Thursday morning, triggering ...

The quakes come just a day after a massive magnitude 8.8 earthquake struck in Russia, prompting tsunami warnings along the ...