Last Monday, April 14, an earthquake caught many people’s attention in Southern California. It was centered near the town of Julian about 35 miles inland from San Diego and triggered the USGS ...

Accidental landing of a research vessel in the San Andreas zone revealed the repeating patterns tribuldite in its core.

For generations, scientists believed that the West Coast’s two great earthquake engines — the Cascadia subduction zone and ...

A section of the San Andreas fault where earthquakes occur regularly may give off a distinct signal before it trembles to life, new research finds. The signal hints at the opening and closing of ...

Samples from the seafloor reveal evidence of several earthquakes along the West Coast’s two major fault zones happening in ...

The tiny Juan de Fuca plate is largely responsible for the volcanoes that dot the Pacific Northwest of the United States. The plates make up Earth's outer shell, called the lithosphere. (This includes ...

Remote sections along California’s massive San Andreas Fault, where large earthquakes regularly occur, may be primed to shake again any day now, according to a new study. The area around Parkfield in ...

A cluster of precariously balanced rocks in California hold secret clues to future earthquakes near Los Angeles. When you purchase through links on our site, we may earn an affiliate commission.

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." The southern section of California’s San Andreas fault hasn’t experienced a major earthquake in 300 years ...

The Parkfield section of the San Andreas fault is sending mixed messages before a time of expected increased seismic risk. When you purchase through links on our site, we may earn an affiliate ...