what is the main characteristics of tsunami??< interesting fact included>?

Question

Pls reply if u know as i really couldnt find anything about that and i need it for my project......

Answer 1

HIPPO5215, the best thing for you to do is just type tsunami and search, and you may end up getting tons of information on the subject.

For ready reference, I provide here some basic information about tsunami. I hope you will find it useful:

The word tsunami (pronounced soo-NAH-mee) is Japanese, and it means ‘harbour wave’.
A tsunami is a huge volume of moving seawater and has nothing to do with tides although it is sometimes mistakenly called a tidal wave.
These giant waves can travel for thousands of miles across the sea and still create a lethal energy that destroys buildings, trees, wildlife and people.
If you throw a stone in a pond it will create a series of ripples. A tsunami is just like those ripples but the disturbance that sets them moving is much greater than a small stone. It can trigger an undersea earthquake, landslide or volcanic eruption. The most frequent tsunami-maker is the buckling of the seafloor caused by an undersea earthquake. Large volumes of seawater are displaced creating a tsunami.
Where do these undersea earthquakes occur?
The earth is made up of several pieces of hard rock that fit together a bit like a jigsaw. These are called tectonic plates, and they move very slowly. Oceanic plates are denser/heavier than continental plates and so they slide under the continental plates. Where this happens it is called a subduction zone. There are subduction zones off Chile, Nicaragua, Mexico and Indonesia. These areas are prone to earthquakes, which happen when the plates suddenly move against each other.
What other things could create a tsunami?
Sometimes when an ocean island collapse it causes a huge displacement of water which can also create a tsunami. Very rarely, a tsunami can be created by a giant meteor hitting the ocean!
Scientists found traces that a huge meteor rock collided with the Earth 3.5 billion years ago and landed in the ocean which may have created a giant tsunami that drastically changed coastlines and wiped out almost all life on land.
In deep water tsunami waves can reach speeds of 500mph, almost fast enough to keep pace with a jet airplane. The waves spread out with hundreds of miles between wave crests that may be just a few feet high.
In deep water, the waves spread out with hundreds of miles between wave crests that may be just a few feet high.
A tsunami wave also extends thousands of feet deep into the ocean.
As a tsunami reaches the shore it gradually slows down and increases in height.

Good luck with your project.
Cheers!