Essay on tsunamis need information

On 15 June 1896 the Sanriku coast was struck by a devastating tsunami with a maximum wave height of m, which caused more than 22,000 deaths. The residents of the coastal towns and villages were taken completely by surprise because the tsunami had only been preceded by a relatively weak shock. The magnitude of the tsunami has been estimated as M t = while the earthquake shaking only indicated a magnitude of M s =. This discrepancy in magnitude requires more than just a slow rupture velocity. Modelling of tsunami generation that takes into account additional uplift associated with deformation of the softer sediments of the accretionary wedge caused by horizontal movement of the 'backstop' in the overriding plate has successfully explained the discrepancy, estimating a magnitude of M w =–. [6]

Essay on tsunamis need information

essay on tsunamis need information

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essay on tsunamis need informationessay on tsunamis need informationessay on tsunamis need informationessay on tsunamis need information