コンビニエンス・ストアを対象としたアンケート震度調査の試み : 1994年10月4日北海道東方沖地震を例題として

概要

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In this paper, we carried out questionnaire survey of estimating seismic intensity during Hokkaido-Toho-Oki Earthquake at late night, October 4, 1994. After making some modification to original questionnaire forms proposed by Ohta et al., we distributed 64 sets to the convenience store's owners located in Kushiro and Nemuro regions of Hokkaido by mail and received 46 sets in return. As this kind of store is usually located at the ground floor and open until late night or 24 hours a day, the seismic intensity for the late night earthquake seems to be evaluated accurately. This is why we chose convenience stores for our questionnaire. Through conventional process, we estimated the seismic intensity for the area and compared our results with those in previous studies. We confirmed that our approach will be useful to obtain the seismic intensity in the sense of reference points for seismic microzonation.
1995-12-30