Tsunami warning system
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Tsunami warning system

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    Tsunami warning system Tsunami warning system Presentation Transcript

    • How the  Indian Ocean Tsunami warning system works  s1180044 Masatoshi Igarashi
    • Index● Introduction● Background● How the system works● How to inform● How to analyze● Conclusion 
    • IntroductionIn 2004, a big tsunami happened in the IndianOcean. This tsunami killed about 230,000 people.This presentation will say about this tsunami andtsunami warning system in order to establish it inthe India. 
    • BackgroundThe Pacific Tsunami Warning Center (PTWC) haswarned   countries facing to the Pacific Ocean tothe danger of tsunami for more than 40 years. Itwas considered that necessity of early tsunamiwarning system since the tsunami in the India in2004.
    • How the system works When the earthquake happened at close the IndianOcean, its data is sent to The Pacific TsunamiWarning Center (PTWC) in Japan and Hawaii. Theirtwo PTWC have to predict that size of the tsunamiand time of arriving the tsunami as soon aspossible. And their information is shared each Asiancountries.
    • How to inform Government agency of nation need to inform topeople. Warning to people is told by a variety ofmethods. For example, as a digital method, radio,TV, SMS, email and so on. As an analog method,megaphone, bell, loud voice and so on. 
    • How to analyzeFirst, decision of earthquake time, location andsize. Second, Decision of the direction and size inbottom of the sea. Third, The process of thetsunami is simulated based on the bottom of thesea features data.The time of analyzing tsunami takes about 15 to 20minutes, It depends on the place and state of theearthquake.
    • ConclusionI think that we need to share the system andconvey information efficiently in order to establishearlier tsunami warning system.