Countless seismic faults just as dangerous as the one that triggered Monday's San Simeon earthquake are suspected to be lurking throughout the Bay Area. Scientists have known about some of these ...

Seismic hazard maps issued by the state may underestimate the quake risk in Orange County and should be reevaluated in light of evidence that significant faults are hidden underground, according to ...

As PG&E’s aging Diablo Canyon nuclear power plant is up for a 20-year federal license renewal, one scientist cites new GPS data to suggest there’s a looming seismic threat from an active thrust fault ...

The violent earthquake that struck western India yesterday was born from ponderous but powerful forces deep underground that move entire continents. In many ways, the quake was similar to the deadly ...

An aerial view of the La Cañada Flintridge foothills shows dust and dirt thrown into the air following a magnitude 5.9 earthquake from Oct. 1, 1987. (George Rose / Getty Images) Monday's magnitude 4.4 ...

Recent earthquakes that have shaken California may be a result of a Southern California fault line considered even more dangerous than the San Andreas fault. Los Angeles was rattled by a 4.4 magnitude ...

Scientists citing new research say an earthquake fault along the Los Angeles coast, previously believed to be dormant, is active and could cause a destructive 6.4 magnitude earthquake if it ruptured.

Conjugate sets of normal faults formed in the Quaternary fan sediments lying near the top of footwall rocks of the Ramgarh Thrust are analysed. These faults are recognized on left hillslope of Kosi ...

Findings from a recently published paper led by Smithsonian senior scientist emeritus Thomas R. Watters reveal evidence that the south polar region of Earth’s moon has experienced the effects of the ...