STANISLAUS COUNTY, CA - According to the U.S. Geological Survey, a preliminary 2.5 magnitude quake occurred close to ...

Paleoseismology uses sand dikes to date ancient earthquakes, crucial for improving building safety and mitigation strategies.

— James Webb, Mineral Point, Wis. A Chuck DeMets, professor of geophysics at the University of Wisconsin-Madison: Most earthquakes occur when a geological fault, a fracture within the Earth’s crust, ...

Experts worldwide agree that the "drop, cover and hold on" safety procedure is the best way to protect oneself from falling ...

LOS ANGELES COUNTY, CA - Sunday morning, a 2.1 magnitude quake was recorded close to Los Angeles, according to the U.S. Geological Survey.

MARIPOSA COUNTY, CA - A 2.8 magnitude quake was recorded near Mariposa Saturday afternoon, according to the U.S. Geological Survey. At 2:28 p.m., the region was shaken by a tremor. The earthquake ...