HUMBOLDT COUNTY, CA - A preliminary 3.1 magnitude quake was registered close to Petrolia on Monday around midday, according to the U.S. Geological Survey. The tremor shook at 11:31 a.m., with its ...

CONTRA COSTA COUNTY, CA - the U.S. Geological Survey reported that a preliminary 2.0 magnitude quake occurred near San Ramon at midday on Sunday. The tremor struck at 11:40 a.m., with its epicenter ...

LAKE COUNTY, CA - According to the U.S. Geological Survey, a preliminary 2.2 magnitude quake occurred close to Nice Tuesday night. The tremor struck at 10:11 p.m., with its epicenter located ...

MARIPOSA COUNTY, CA - Saturday morning, a preliminary 2.4 magnitude quake was reported close to Mariposa, according to the U.S. Geological Survey. A tremor struck the area at 5:32 a.m. The ...

A preliminary 2.6 magnitude quake was detected near Petrolia Thursday afternoon, according to the U.S. Geological Survey. The tremor shook the area at 3:56 p.m. It occurred at a depth of 11 miles with ...

Two earthquakes struck off the Oregon coast on Tuesday, rattling communities along the Pacific Northwest shoreline. The first temblor registered a magnitude of 5.4 and occurred about 100 miles west of ...

KERN COUNTY, CA - A preliminary 2.9 magnitude quake was registered close to Johannesburg around midday Sunday, according to the U.S. Geological Survey. At 11:15 a.m., the region was rattled by a ...

GREENEVILLE, Tenn. — An earthquake was reported near Greeneville Friday morning. The quake was 1.9 magnitude, according to the United States Geological Survey. It said the earthquake was reported ...

Up to 98 percent of the energy of an earthquake goes into flash heating rocks, not shaking the ground, new research shows. The finding could help yield better earthquake forecasts The shaking produced ...

An earthquake with a magnitude of 4.3 rocked the San Francisco Bay Area early Monday, waking up many people, with more 24,000 saying they felt it, according to the United States Geological Survey.The ...

PORTLAND, Ore. (KOIN) – A small cluster of earthquakes have been recorded off the Oregon Coast since Monday, with three more recorded early Tuesday afternoon after the first quakes were reported ...