It’s a daunting challenge with the highest possible stakes should an offshore earthquake unleash a wall of incoming seawater.

Landslides, earthquakes, and subduction faults could generate 1,000-foot mega-tsunamis, wiping coastal communities off the ...

A tsunami originating from a landslide set off seismic waves that were detected across the world. The phenomenon, which ...

Distant-source tsunami: More than 350 people could die or be injured along the Southern California coast if people wait to ...