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Tsunami - Wikipedia

A tsunami (Japanese: 津波) (/ (t) suːˈnɑːmi, (t) sʊˈ -/ (t)soo-NAH-mee, (t)suu- pronounced [tsɯnami]) is a series of waves in a water body caused by the displacement of a large volume of water, generally in an ocean or a large lake..

Tsunami Facts and Information - National Geographic

A tsunami is a series of ocean waves that sends surges of water, sometimes reaching heights of over 100 feet (30.5 meters), onto land. These walls of water can cause widespread destruction when....

Tsunami | Definition & Facts | Britannica

Tsunami, (Japanese: “harbour wave”) also called seismic sea wave or tidal wave, catastrophic ocean wave, usually caused by a submarine earthquake, an underwater or coastal landslide, or a volcanic eruption. The term tidal wave is frequently used for such a wave, but it is a misnomer, for the wave has no connection with the tides..

U.S. Tsunami Warning Centers

Your official U.S. government weather forecasts, warnings, meteorological products for forecasting the weather, tsunami hazards, and information about seismology..

What is a tsunami? - National Ocean Service

A tsunami is a series of waves caused by earthquakes or undersea volcanic eruptions. On September 29, 2009, a tsunami caused substantial damage and loss of life in American Samoa, Samoa, and Tonga. The tsunami was generated by a large earthquake in the Southern Pacific Ocean..

What are Tsunamis? - USGS

Tsunami waves are unlike typical ocean waves generated by wind and storms, and most tsunamis do not "break" like the curling, wind-generated waves popular with surfers. Tsunamis typically consist of multiple waves that rush ashore like a fast-rising tide with powerful currents..