Tsunami

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Tsunami is long and high waves generated by a powerful impact on the entire water column in the ocean or other body of water.

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The most common causes of : An undersea earthquake is the displacement of the bottom vertically. One part is lifted up, the other down, it generates a series of waves . Landslide tsunami of this kind occurs often .They cause an earthquake, and creates waves. Volcanic eruptions during heavy volcanic explosions formed not only the wave of the explosion, but the water also fills the space of the erupted material, resulting in an wavelengths.

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Tsunami dangerous : During the tsunami - comes the whole water column, from the bottom to the surface. At the same time on the beach when the tsunami splashes water volume, a thousand times larger than storm surges. The speed of tsunami waves, even near the shore than the speed of wind waves. When the storm excitement grows slowly, people usually have time to move to a safe distance before the arrival of large waves. Tsunami comes suddenly. The destruction of the tsunami may increase in the harbor - where the wind waves are attenuated, and therefore, residential buildings can stand on the shore. The lack of basic knowledge among the population about the possible danger. For example, during the 2004 tsunami, when the sea receded from the coast, many residents remained on the beach - out of curiosity or a desire to collect not had time to leave the fish.

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Top 3 of the largest tsunami in history : In 1960, the strongest earthquake occurred and caused a major tsunami vysata it composes 25 meters. The tsunami claimed 6,000 people 3 In 2011, there was the tsunami in Japan, the height of 11-40 meters, caused by an earthquake of 9 points. It destroyed 142,000 buildings, 25,000 residents were killed, in addition, it has destroyed the Fukushima power plant, caused by the radiation of 320 kilometers 2 The biggest tsunami occurred in 2004 in the Indian Ocean tsunami height of 30 meters, it has claimed the lives of 240,000 people, underwater earthquake estimated at 9.3 points. Most affected countries: Indonesia, Thailand, India and Sri Lanka 1

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Thank you for attention! By Volkov A. and Bariev R.