Multiple earthquakes shook Southern California hours after a tremor was felt on the East Coast on Aug. 5, according to data ...

Multiple earthquakes shook Southern California hours after a tremor was felt on the East Coast on Aug. 5, according to data from the U.S. Geological Survey. One quake hit Rialto, California, in the ...

The quakes struck near Rialto, Ontario and Lytle Creek in San Bernardino County, producing weak to light shaking, according ...

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

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

A light, 4.3-magnitude earthquake struck in Southern California on Thursday, according to the United States Geological Survey ...

A swarm of earthquakes, including one with a magnitude of 4.3, shook San Bernardino County on Thursday morning. According to the U.S. Geological Survey, the quake struck at 9:32 a.m. The ...

If you experience an earthquake, Sarah Minson, a research geophysicist with the USGS’s Earthquake Science Center in Mountain View, California, advises not to run.

A 3.1-magnitude earthquake shook the San Francisco Bay Area in California, the U.S. Geological Survey reported. The nearly ...

A 4.3-magnitude earthquake shook parts of Southern California, the U.S. Geological Survey reported. The about 3-mile deep ...

In California, where the next “Big One” is an always-looming threat, some lessons learned from the 1925 Santa Barbara quake resonate even 100 years later, experts say.