Tsunami in japan

                                                               Tsunami in Japan

A tsunami  is a series of huge waves that occur as the result of a violent underwater disturbance, such as an earthquake or volcanoc eruption. The waves travel in all directions from the epicenter of the disturbance. The waves may travel in the open sea as fast as 450 miles per hour. As they travel in the open ocean, tsunami waves are generally not particularly large hence the difficulty in detecting the approach of a tsunami. But as these powerful waves approach shallow waters along the coast, their velocity is slowed and they consequently grow to a great height before smashing into the shore. They can grow as high as 100 feet; the Indian Ocean tsunami generated waves reaching 30 feet. 

Japan was hit by a 9.0 magnitude earthcuate on march 11,2011. The giant waves deluged cities and rural areas alike, sweeping away cars,homea,buildings,a train and boats, leaving a path of death and devastationin its wake. The pacific tsunami warming center issued warnings for Russia, Taiwan, Hawaii, Indonesia, the Marshall islands, papua new guinea, australia, and the west coast the U.S., mexico, central america and south america. According to the official toll, the disasters left 15,839 dead injured,and 3,642 missing. Cooling systems in one of the reactors at the Fucushima Daiichi nuclear power station in the fukushima prefecture on the east coast of Japan fialed shortly after the aEarthquake, causing a nuclear crisis. On april 12, Japan raised its assessment of the situation at the Fukushima Daiichi nuclear power plant to level 7, the worst raiting on the international scale, putting the disaster on par with the 1986 Chernoby explosion.