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

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

Did you feel it? A 3.5 magnitude earthquake struck the Rialto area in San Bernardino County on Tuesday. The quake was ...

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

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

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

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.

ONTARIO, Calif. (KABC) -- At least two earthquakes rattled San Bernardino County overnight, according to the U.S. Geological Survey. A 3.5-magnitude quake hit the Ontario area just after 1 a.m.

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

A total of four earthquakes rocked the Inland Empire overnight, meaning the region experienced five quakes across a 13-hour ...

Two earthquakes, a 3.5-magnitude in Ontario and a 3.7-magnitude in Lytle Creek, shook San Bernardino County overnight.