A 5.3-magnitude earthquake struck 38 miles off the coast of California Thursday afternoon, rattling Los Angeles.
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.
The slowdown in Earth's rotation could trigger more earthquakes next year, new research suggests.
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