An earthquake happened about 10:30 a.m. Sunday Eastern time just over the U.S.-Canadian border, the U.S. Geological Survey agency says.

Two earthquakes with magnitudes 3.5 and 3.9 rattled the Inland Empire on Saturday. The United States Geological Survey reported the first temblor occurred at 10:05 a.m. in Ontario. The quick jolt ...

A 3.5-magnitude earthquake struck near Ontario this afternoon, according to the U.S. Geological Survey (USGS). The quake hit at 12:56 p.m. with an epicenter 1.24 miles southeast of Ontario. USGS ...

Ontario International Airport as seen from a passenger plane approaching Los Angeles International Airport. Photo by Robert Alexander/Getty Images Two small earthquakes have hit near Ontario, ...

A pair of modest earthquakes rattled Southern California on Saturday morning, with epicenters in Ontario. The earthquakes, of magnitudes 3.5 and 3.9, occurred within about a half hour of each other.

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.

Weak to light shaking was reported in Ontario, Rancho Cucamonga, Fontana, Upland, Riverside and other areas. Smaller quakes, ranging in magnitude from 1.0 to 1.8, were reported within an hour of the ...

Parts of Ontario, Canada, felt the ground sway and walls rattle Tuesday night, Jan. 27, from a magnitude 3.7 earthquake, centered about an hour east of Michigan. At 10:59 p.m. ET Tuesday, Jan. 27, the ...

A magnitude 3.5 earthquake rattled a swath of Southern California on Tuesday, causing light or weak shaking to be felt across the Inland Empire, as well as parts of Los Angeles and Orange counties.

The earthquakes, with epicenters in Ontario, occurred within about a half hour of each other. (U.S. Geological Survey) A pair of modest earthquakes rattled Southern California on Saturday morning, ...