地域活動力を用いた地震危険度評価に関する研究 : その2 経済活動力を用いた東京湾岸域の地震危険度評価

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We have in our preceding paper proposed the basic concept of Regional Vitality as an index for evaluation of earthquake risk potential and also the technical method of evaluation of Economic Vitality, presenting a case study on the evaluation of the damage done by the 1995 Hyogoken-Nambu Earthquake in the Hanshin region and vicinity. In the present paper, we try to build on the outcome of the preceding one and verify the general validity of the Economic Vitality evaluation method for other regions in Japan as well. In particular, we propose to make a seismic risk assessment for Tokyo Bay region pursuant,to the evaluation method. Specifically, we intend to show that we can evaluate a seismic risk by sizing up a possible decline in the Economic Vitality index from the normal level when an earthquake strikes. We finally try to compare our own seismic risk assessment with an earlier similar assessment made by Tokyo Metropolis pursuant to a conventional evaluation method, thereby testifying to the unique effectiveness of the evaluation index of ours.
2002-01-30