That was later followed by a 3.9 earthquake at 10:34 a.m., with its center about 4.4 miles southeast of Ontario and 4.7 miles northwest of Jurupa Valley in Riverside County.

A 3.8 magnitude earthquake hit in Southern California near San Bernardino County Thursday night, according to the United States Geological Survey.. The quake hit just outside of Ontario, about six ...

A magnitude 4 earthquake rattled Southern California before dawn Sunday morning — the strongest in a series of modest earthquakes to strike near the Ontario International Airport in the last month.

A magnitude 3.0 earthquake was reported Saturday afternoon at 3:49 p.m. Pacific time in Ontario, according to the U.S. Geological Survey. The earthquake occurred two miles from Rancho Cucamonga ...

Thursday night’s 3.8 magnitude earthquake was centered near the Ontario International Airport, according to geologists. The U.S. Geological Survey recorded the temblor at 11:38 p.m. about 2 ...

After another smaller quake, 3.9-magnitude earthquake strikes near Ontario 05:58. More than a dozen aftershocks followed a 3.9-magnitude earthquake that struck the Inland Empire Saturday — a ...

A preliminary 4.0-magnitude earthquake struck near Ontario this morning, according to the U.S. Geological Survey. The quake hit at 3:51 a.m. Sunday with an epicenter of 2.8 miles northwest of Ontario.

Two small earthquakes occurred near Ontario Saturday morning. At 10:05 a.m., a magnitude 3.5 earthquake struck 3.1 miles southeast of the city, followed by a 3.9 magnitude quake at 10:34 a.m. that ...

A 4.0-magnitude earthquake near Ontario shook parts of Southern California on Sunday morning, Oct. 6, the U.S Geological Survey reported. The quake, at 3:51 a.m., was centered at 4.3 miles ...

Two small earthquakes occurred near Ontario Saturday morning. At 10:05 a.m., a magnitude 3.5 earthquake struck 3.1 miles southeast of the city, followed by a 3.9 magnitude quake at 10:34 a.m. that ...