Towering walls of water traveling at the speed of a jetliner, with coastal communities from Japan and Hawaii to South America and the U.S. West Coast in their path. That was the frightening ...

A new study finds that a megatsunami in Alaska pushed water more than 1,500 feet up the sides of a fjord near Juneau. Researchers say more monitoring is needed to prevent future catastrophes.

An engineering professor outside of Alaska has created a simulation and video game that can help people understand the scale ...

A new study finds that a megatsunami in Alaska pushed water more than 1,500 feet up the sides of a fjord near Juneau.