Could the grand canyon hide evidence of ancient earthquakes? The post Could the Grand Canyon Hide Evidence of Ancient ...

While not a household name like the San Andreas, the Elsinore fault is part of a larger seismic zone that experts fear and ...

Earthquakes are among the deadliest of natural global threats to society, responsible for the majority of disaster-related ...

In this type of fault, the block of rock above the fault plane, known as the hanging wall, moves downward relative to the block below, called the footwall. Normal faults are typically found at ...

The 5.2-magnitude earthquake on Monday shook the ground and nerves in San Diego, but some scientists were already scanning the ocean floor for tremors.

The temblor was detected near Julian, California. There were no immediate reports of major damage or injuries.

DUBLIN, Calif. (KGO) -- From Napa to Santa Cruz, many Bay Area residents say they felt the big jolt of a 3.9 earthquake on the Calaveras fault in the East Bay. It struck at 7:46 p.m. Monday night ...

After an earthquake shook Southern California this week, Ian Schwartz looks at Arizona's seismic history. And it includes one devastating quake.

After an earthquake shook Southern California this week, Ian Schwartz looks at Arizona's seismic history. And it includes one devastating quake. The Yavapai County Sheriff’s Office said 2-year ...