Radioactive materials are found naturally in the Earth. But even so, saying an area is radioactive can conjure up images of ...
A moderately strong, 5.0-magnitude earthquake struck in Texas on Friday, according to the United States Geological Survey.
A minor, 3.5-magnitude earthquake struck in Southern California on Saturday, according to the United States Geological Survey ...
An earthquake with a preliminary magnitude of 3.5 rattled the L.A. metropolitan area early Saturday just hours after a 3.8-magnitude quake shook the Malibu area shortly before midnight Friday.