The six-mile-wide asteroid punched a one-way ticket toward extinction for all non-avian dinosaurs. Some 66 million years ...

After a powerful quake shook the Caribbean Sea southwest of the Cayman Islands, some islands urge people to move inland in case of a tsunami.

The National Weather Service said, "There is no tsunami danger for the U.S. east coast, the Gulf of Mexico states, or the eastern coast of Canada." Earthquakes of this size are often notorious for ...