地震静穏地域に発生した震度4の地震に対する住民の反応 (その2):震度と驚き・恐さおよび行動との関係 Behaviors of the Inhabitants Faced with a Strong Seismic Motion in an Inert Area Seismically (Part 2):Astonishment, Fearfulness and Action in Relation to Seismic Intensities

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Abstract

It gives us one of the fundamental informations for the counterplan of earthquake disaster prevention to survey how inhabitants faced with strong earthquake motions behave differently, in the regions of high and low seismicities. This study is done by questionnaire about the matter mentioned above. The survey region with low seismicity is the area effected by strong motions of the earthquake (May 30, 1984, <i>M</i>: 5.6) which occurred in the southwestern part of Hyogo Prefecture. The surveys in the cases of Ohita earthquake (April 21, 1975, <i>M</i>: 6.4) and Off Miyagi Earthquake (June 12, 1978, <i>M</i>: 7.4) were already done by OMOTE and MITSuNAMI (1976) and OMOTE <i>et</i> <i>al</i>. (1980), for the regions of high seismicities, respectively. The findings of their papers are referred to the present paper to compare their findings with the results of the current questionnaire. The results are as follows: Responding to JMA intensity scale 5, one hundred percents of the inhabitants in the region of low seismicity act involuntarily and instinctively, while onle 10% of those in the region of high seismicity do so. The findings suggest that the inhabitants in the region of low seismicity are apt to cause secondary disasters such as panic, fire and the like, at lower seismic intensity than those in the region of high seismicity.

Journal

  • Zisin (Journal of the Seismological Society of Japan. 2nd ser.)

    Zisin (Journal of the Seismological Society of Japan. 2nd ser.) 43(2), 189-198, 1990

    SEISMOLOGICAL SOCIETY OF JAPAN

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