首都直下地震災害の曝露指標の算出とその地域的特性に関する研究

概要

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Tokyo Metropolitan Earthquake will cause enormous damages because of highly accumulated exposures. And it will induce significant loss of social and economic activities because of the concentrated functions of government and economy. To take a general view of the disaster, this paper calcurates the exposures to natural conditions, such as estimated seismic intensity, and illustrates their characteristics of distribution. This paper also counts the exposure of critical infrastructures to recognize their centralization. As a result, 25 million people were estimated to exist in the area where seismic intensity will be lower 6 and over. Systems of power, railroad, public health were concentrative to the area of seismic intensity upper 6. Suffered area was classified into several areas according to exposures.