Tuesday, June 19, 2007

What is a tsuami?

This is my basic anwser for what is a tsunami. I will add on to it.

A tsunami is a series of waves or a wave train created when a body of water, an ocean or sea, is rapidly displaced on a massive scale. The disturbance vertically displaces the water column. Earthquakes, landslides, volcanic eruptions, explosions and meteorites can generate tsunamis.

A tsunami has a very small wave height offshore and a very long wavelength that can stretch for hundreds of kilometres. But when the tsunami comes to shore it can get quite large vertically. Tsunamis can go unnoticed by boats at sea because a tsunami passing through feels like going over a hump. Boats do not recognize it because a tsunami is not tall at the sea but is very long and wide.

These giant waves can travel for thousands of miles across the sea and still create a lethal energy that destroys people, wildlife, landscapes and even powerful enough to destroy buildings.

A tsunami is like when you throw a stone into a pond. Little ripples spread away from where the stone hit. A tsunami is like this because large waves spread from where the occurrence happened but the tsunamis are much, much larger.