1. Tsunami. The meaning and characteristics of the tsunami.Tsunami (tsunami) means the wave, which moves in the ocean at high speed, and the power of violence can moves at a long distance. When moving into the coastal area will cause a large waves, called the giant waves causing enormous damage to life. And property of the people who live along the coast. This type of wave is different from the ordinary wave caused by wind blowing over the surface of water in the sea, the word tsunami from Japanese translator. Big Wave Bay dock (harbour waves), however due to the coastal areas of Japan. A Bay dock in the Pacific Ocean. Often the threat of this type of wave is often called the name so. Later this name is applied widely and is generally understood by their government. ราชบัณฑิตยส locations have definitions Committee of tsunami. " Is the language that the tsunami.Important characteristics of tsunami is a wave moving in the ocean waves that consists of a set length. The distances between each wave crest. From 100 to 200 kilometers, and the period is the wave motion of wave crest, but children from 10 minutes to 1 hour. Can move at high speed from the informed and to more than 80 kilometers per hour. And moves in a far distance hundreds or thousands of kilometers. If there is any land block in the sea, while moving in the deep zone. The height ของคลื่น only 30 cm to 1 meter. But when in the shallow water near the coast, will increase the height and more violent, respectively. Until may resemble a water wall large sweep approach the coast. If the coast Bay is narrow. Or are shaped like inside the cone filed by then. The wave may increase the height of up to 30 meters, water mass of a wave swept to the shore. Against buildings located in sight. If the building is a short structured not strong, will be destroyed until the Rae.
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