Google’s Android Earthquake Alerts program is a globe-spanning earthquake early-warning system that uses billions of phone ...

Spectacular drone footage captured the Sundhnúkur volcanic fissure erupting in southwest Iceland on Wednesday. A river-like flow of lava illuminated the landscape after a massive 1.5-mile fissure ...

A flash flood emergency is the rarest and most dire flooding alert that can be issued by the National Weather Service. Knowing what to do could save your life.