New research reveals that the highest tsunamis in history were caused by sudden landslides, not earthquakes, leaving ...

Megatsunamis are not only much larger than your average tsunami, they also form under different conditions. Good news: they're extremely rare. Bad news: they might not be for long. Hosted by: Hank ...

Tsunamis are large, powerful waves caused by the displacement of water in an ocean or a large lake. They are sometimes referred to as tidal waves, although they have nothing to do with the tides. In ...