急求有关海啸知识的英文介绍
TsunamiisaJapanesewordthatmeansseawave.AtsunamiisahugeseawavethatformsmainlyinthePacificOceanarea.Peopledieandpropertyisdestroyedwhenatsunamihitsland.Whatcausesthesedangerousseawaves?Sometimes,tsunamisarecausedwhenearthquakestakeplaceunderwater.Then,waterbeginstomoveupanddownfromthetopoftheoceanrightdowntothebottom.Wavesbegintoform,andeachwaveiscalledatsunami.
Atsunamiislessthanonemeterhighandcanmoveatspeedsofalmost800kilometersperhourwhileitisfaroutintheocean.Butthetsunamirisesmuchhigherandmovesmoreslowlyasitcomesclosertoland.
Theweatherbureuwarnspeopleoverradioandtelevisionstationswhenatsunamiisheadingforland.Thesewarningshavehelpedsavemanylives.
其他相关资料:http://www.chinaview.cn/ydyhx/eng.htm
你可以从百度上查tsunami(海啸),会有更多资料。
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