Earthquakes

And oil and gas extraction are to blame.

Thursday's temblor alarmed an eagle family on Santa Cruz Island.

Some people in Los Angeles knew about today's earthquake before it even hit.

A 5.3-magnitude earthquake struck 38 miles off the coast of California Thursday afternoon, rattling Los Angeles.

This haunting film reel was lost for 100 years. Soon, the world will see its contents.

The devastation of the 1906 San Francisco earthquake is revealed through this long-lost footage discovered at a California flea market.

A swarm of 200 earthquakes hit Yellowstone National Park, but seismologists still aren't sure what that means.

California has a 93 percent chance of a magnitude-7 or greater earthquake occurring by 2045. Early warning systems, now in development, could limit casualties and damage.

A 7.9-magnitude earthquake struck off Kodiak, Alaska, this morning. A tsunami warning is in effect for parts of Alaska and British Columbia, Canada.

A magnitude-4.4 earthquake just hit Delaware Bay, Delaware, surprising people in The First State, a place typically unaccustomed to tremblers.