The National Weather Service flash flood warning criteria in Charleston is changing. Learn about Base, Considerable and Catastrophic flash flood warnings.

Tsunami warnings have been issued in several countries after an 8.8-magnitude earthquake struck off the coast of Russia, with ...

A powerful earthquake that struck off the coast of Russia has generated tsunami warnings and advisories for a broad section of the Pacific, including Alaska, Hawaii and the U.S. West Coast. | Here's w ...

Hawaii residents have been evacuated from homes in coastal areas due to fears of a tsunami, while there is also concern for locations such as San Francisco in the US ...