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 ...

Add Yahoo as a preferred source to see more of our stories on Google. The magnitude 4.4 earthquake that rattled Los Angeles on Monday was centered within one of the region's most potentially ...

Add Yahoo as a preferred source to see more of our stories on Google. An aerial view of the La Cañada Flintridge foothills shows dust and dirt thrown into the air following a magnitude 5.9 earthquake ...

Southern California was recently rattled by several small earthquakes. They produced minor shaking but nonetheless left psychological aftershocks in a region whose seismic vulnerabilities are matched ...

The 4.4 magnitude earthquake that was felt in many Southern California cities Monday fell on the Puente Hills Thrust Fault System, which is potentially the most destructive in the region. Millions of ...

A 4.4-magnitude earthquake near Highland Park on Monday, Aug. 12, brought back vivid memories for many in the L.A. area. As the shaking rippled through the region on Monday – and after a flurry of ...

Monday's magnitude 4.4 earthquake centered four miles northeast of downtown Los Angeles was modest but packed quite a jolt. Although no major damage was reported, experts say the temblor was in the ...

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 ...

In earthquake country, the meandering paths of quake faults easily get seared into memory in the same way as a California freeway map. An earthquake fault is a fracture in the ground between two ...