A new kind of earthquake has been detected in western Canada, one that shakes the ground slower and longer than typical seismic events. These earthquakes, recorded during hydraulic fracturing for oil ...

At the Seismological Society of America's Annual Meeting, researchers posed a seemingly simple question: how wide are faults? Using data compiled from single earthquakes across the world, Christie ...

Add Yahoo as a preferred source to see more of our stories on Google. Tracy Turner, owner of the Wynola Junction, looks over pictures that fell from shelves when an earthquake hit Monday in Julian.

The five largest continental transform earthquakes since 2000 all originated on a branch of the main fault—and two researchers predict that the next great earthquake of this type will also get its ...

South Carolina is bisected by a number of fault lines that cause those temblors. Those formations are the lingering scars 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 ...

Add Yahoo as a preferred source to see more of our stories on Google. Aftermath of the 1906 San Francisco earthquake, looking down California Street. (The Chronicle 1906) Scientists are warning that ...

Below California’s famed beaches, mountains and metropolitan areas lies a sinister web of earthquake faults — some so infamous that their names are burned into the state’s collective consciousness.

A new type of seismic threat is gaining attention among geologists—and it could have serious implications for California. Known as “supershear” earthquakes, these rare but devastating quakes travel ...

Tracy Turner, owner of the Wynola Junction, looks over pictures that fell from shelves when an earthquake hit Monday in Julian. (Denis Poroy / Associated Press) Below California's famed beaches, ...