Tsunamis are a series of massive waves that ripple out from the earthquake, volcanic eruption, landslide or underwater detonation that caused them. These huge waves can travel thousands of miles across ocean basins. While out at sea, wave heights are small, but as a tsunami approaches shore, the rise of the continental slope means water levels are shallower, and the wave begins to narrow and become higher. Read below for the latest news on tsunamis and tsunami research.
While war and automobiles kill more people than nature, find out what natural disasters top scientists' worry lists.
The deadly tsunami that washed over the southwest Pacific islands of Samoa and Tonga last September may have been triggered by not just one but two giant earthquakes
The volcanic explosion that obliterated much of the island that might have inspired the legend of Atlantis.
Even before the first warning was issued, it was too late for the inhabitants of the island American Samoa.