Tsunamis are giant, powerful waves most often caused by earthquakes beneath the ocean floor. Their incredible power can destroy entire communities, then drag the debris out to sea. This video shows what causes tsunamis and the importance of evacuating any area under a tsunami alert.
An enormous tsunami makes its way to the streets of New York City, causing havoc and destruction. While cinematic, this scene can be used to show the damage that can result from a natural disaster such as a tsunami.