The ground beneath your feet is rarely as still as it seems. The United States sits atop a restless tectonic landscape, and ...

SAN FRANCISCO, Calif. - The United States' most volatile fault line is overdue for an earthquake, and if one occurs, it could be catastrophic for one of California's most populated regions. The San ...

While analyzing strong-motion data close to fault lines, a group of researchers at Kyoto University noticed something unexpected: a negative phase in the waveforms, a pattern that did not conform to ...

A major Hayward fault quake could shake some Bay Area communities harder than expected because of the ground beneath them, new federal simulations show.

NAPA, Calif. (KGO) -- Bigger and stronger than first thought. Scientists uncover new findings about the fault line that caused the 6.0 earthquake in Napa nearly a decade ago. The earthquake in 2014 ...

A 5.1 magnitude earthquake centered near San Jose on Tuesday occurred along the Calaveras Fault, not the most active fault in the Bay Area. It was the strongest quake along that fault line since a 5.4 ...

A huge earthquake fault line has been found underneath Auckland, New Zealand's largest city. The fault line, just south of ...

The Mangatangi Fault, named after a nearby river of the same name, was discovered by geologists from the University of ...

A fault line running alongside the Hunua Ranges in South Auckland is now identified as active and has the potential to cause a major earthquake with serious consequences, University of Auckland ...