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 ...

The quake off the waters off the coast of Russia's Kamchatka peninsula was also among the world's 10 largest earthquakes ...

Series of earthquakes struck San Bernardino and Riverside counties, with a 4.3 tremor felt across Southern California.

A preliminary 4.3-magnitude earthquake struck around 9:30 a.m. north of Fontana. It was followed by at least one aftershock in the same area, currently reported as a 3.1-magnitude quake. PREVIOUS ...

Whenever a major earthquake strikes, the following question tends to come up: Is that sort of quake possible in the Bay Area?

RIVERSIDE COUNTY, Calif. - A pair of earthquakes - both preliminary 3.1 magnitude - struck Riverside County on Monday, ...

BLYTHEVILLE, Ark. (KFVS) - A magnitude 3.2 earthquake was recorded near Blytheville, Arkansas on Friday morning, August 1.

A powerful magnitude 8.6 earthquake struck off Russia's Far Eastern Kamchatka Peninsula on Wednesday, sparking tsunami warnings, prompting evacuations and causing some damage, officials said. "Today's ...

Eyewitness video captured tsunami waves flooding the small Russian town of Severo-Kurilsk on Wednesday morning.