Some earthquakes are followed by a larger earthquake, in which case the first quake would then be called a foreshock. For ...

RIVERSIDE COUNTY, Calif. - An earthquake rocked Riverside County on Friday morning, according to the U.S. Geological Survey. The USGS said a preliminary 3.6-magnitude earthquake occurred at 9:43 a.m.

A magnitude-2.7 earthquake was reported Friday morning in the San Bernardino County community of Rialto. The quake was centered just north of Rialto and Fontana. Shaking was reported at about 9:30 a.m ...

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

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

Southern California experienced a shake this morning as a preliminary 4.3 magnitude earthquake hit California’s Inland Empire ...

A preliminary 3.6-magnitude earthquake struck near Idyllwild at 9:43 a.m. on Friday, according to the U.S. Geological Survey ...

A preliminary 4.4-magnitude earthquake struck near the Fontana and Rialto areas in San Bernardino County in California on Thursday.

Los Angeles Mayor Karen Bass said on X that the earthquake was felt in the Los Angeles area. She added that the Los Angeles Fire Department "has activated to conduct its routine survey of the city to ...

When earthquakes happen, California's MyShake app detects it and sends an alert to users. It's the nation's first statewide earthquake early warning system.

Earthquakes’ sudden, rapid shaking can cause fires, tsunamis, landslides or avalanches. They can happen anywhere, but they’re ...

A new report studied a massive earthquake that ruptured in the southeast Asian country of Myanmar on March 28 — on a fault ...