MONTEREY COUNTY, CA - A preliminary 2.2 magnitude quake was recorded close to San Ardo Saturday morning, the U.S. Geological ...

SAN DIEGO COUNTY, CA - Friday afternoon, a preliminary 2.3 magnitude quake was registered close to Borrego Springs, according ...

A future mega-earthquake in the Pacific Northwest could lead to the "Big One" along the San Andreas fault in California-or ...

California was shaken early Thursday as a series of earthquakes struck in quick succession, raising concern in the seismically active region. The US Geological Survey (USGS) reported six tremors ...

SONOMA COUNTY, CA - According to the U.S. Geological Survey, a 2.6 magnitude quake rattled close to The Geysers Tuesday night. At 10:54 p.m., the region was shaken by a tremor. The earthquake struck ...

Yellowstone is moving, but there's another supervolcano that is also showing signs that it's active in the U.S. It's cooling ...

ALAMEDA COUNTY, CA - According to the U.S. Geological Survey, a 4.3 magnitude quake rattled close to Berkeley Monday morning. The tremor jolted at 2:56 a.m., with its epicenter situated roughly 1 mile ...

HUMBOLDT COUNTY, CA - Wednesday night, a 2.7 magnitude quake was recorded close to Petrolia, according to the U.S. Geological Survey. At 10:43 p.m. (9:43 p.m. local time), the region was rattled by a ...

SONOMA COUNTY, CA - the U.S. Geological Survey reported that a preliminary 2.2 magnitude quake struck near The Geysers Sunday afternoon. The tremor, which shook the area at 3:15 p.m., was centered ...

SAN BENITO COUNTY, CA - A preliminary 2.2 magnitude quake was registered close to Pinnacles Monday morning, according to the U.S. Geological Survey. A tremor struck the area at 10:02 a.m. The ...