Deutsch-Chinesische Enzyklopädie, 德汉百科

       
German — Chinese
Catalog Disaster relief

海啸

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  1.什么是海啸

    海啸是一种具有强大破坏力、灾难性的海浪,通常由震源在海底下50千米以内、里氏震级6.5以上的海底地震引起。水下或沿岸山崩以及火山爆发也可能引起海啸。在一次震动之后,震荡波在海面上以不断扩大的圆圈,传播到很远的距离。

    海啸在外海时由于水深,波浪起伏较小,不易引起注意,但到达岸边浅水区时,巨大的能量使波浪骤然升高,形成内含极大能量,高达十几米甚至数十米的“水墙”,冲上陆地后所向披靡,往往造成对生命和财产的严重摧残。

    海啸发生有两种形式:一是滨海、岛屿或海湾的海水反常退潮或河流没水,而后海水突然席卷而来、冲向陆地;二是海水陡涨,突然形成几十米高的水墙,伴随隆隆巨响涌向滨海陆地,而后海水又骤然退去。

(Quelle:www.gov.cn/ztzl/yjzn/content_559153.htm) 

 

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美國國際開發總署 美国国际开发署

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美国地质调查局/美国地质勘探局

 

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水下摄影机/Underwater camera
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水下机器人/under water robot
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火山爆发
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森林火灾/山火/Forest fire
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世界紧急救援组织
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全球标准化地震网
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奥地利气象与地球物理中央研究院/Central Institution for Meteorology and Geodynamics

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紧急响应协调中心/Emergency Response Coordination Centre, ERCC
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