What's clear from the study is that while California's next "Big One" may share some characteristics of previously documented ...

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

A magnitude 3.7 earthquake near Lytle Creek jolted awake residents across San Bernardino County, the latest in a string of ...

Several small earthquakes hit the Inland Empire early Wednesday morning, but there were no reports of damage. Ontario saw two ...

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

A magnitude 3.5 earthquake struck Rialto late Tuesday afternoon, according to the U.S. Geological Survey. The temblor, at ...

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

A 3.5-magnitude earthquake struck near Fontana, California, on August 5, 2025. Here's what caused it, how common earthquakes are in the region, and a look at Fontana’s seismic history.

RIALTO, Calif. (KABC) -- A 3.5-magnitude earthquake struck near the Fontana area and rattled other parts of the Inland Empire Tuesday afternoon, according to the U.S. Geological Survey.

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

A magnitude 3.5 earthquake struck in San Bernardino County on Tuesday afternoon, causing shaking felt as far as Los Angeles ...