Even before the first warning was issued, it was too late for the inhabitants of the island American Samoa.
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.
Long-lasting, but imperceptible tremors are caused by the slow slipping of tectonic plates and could be a warning of future mega quakes, a new study finds.
Residents of Japan have fled the coast twice in the past two months. Both times the tsunamis were minor. Why does one earthquake generate huge waves while another does not?
VIDEO: A new computer simulation recreates a catastrophic tsunami that spawned waves up to 130 feet tall.
New software coupled with data from the Global Positioning System (GPS) could quickly determine whether a large earthquake will generate an ocean-wide tsunami.
The Kingdom of Tonga is an archipelago nation located in the South Pacific Ocean, about a third of the way between New Zealand and Hawaii, east of Fiji.
Around midnight on January 27, 1700, a mysterious tsunami stole through several villages on the eastern coast of Japan. Three centuries later, its cause is finally found.