Tsunami Wave Warning Signs

Tsunami is a Japanese word signifying a large sea wave that forms at the bottom of the ocean. "Tsu" stands for harbor and "nami" means wave. The many waves which comprise a tsunami are called a wave train.

  1. Identification

    • Tsunamis form when an earthquake deep under the ocean causes massive amounts of water to be displaced.

    Significance

    • Tsunamis begin far out in the ocean but move onto land after traveling up to 5,000 miles in the water. They can be up to 60 miles long.

    Considerations

    • Rivers and streams which meet the ocean are vulnerable to tsunamis. It's best to stay away from these places until the danger has passed.

    Warning

    • Earthquakes are nature's way of informing the population of a possible pending tsunami. Another sign is a rapid rise and fall of the ocean or of river water.

    Misconceptions

    • Many people believe that tsunamis are tidal waves, but they are not the same thing. Technically, a tidal wave is a regularly occurring rise of water caused by the Earth's rotation.

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