Consciousness of Disaster Risk and Tsunami Evacuation among Local Residents for an Expected Nankai Trough Earthquake and Tsunami

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  • 南海トラフの巨大地震・津波を想定した防災意識と避難行動に関する住民意識調査
  • ナンカイ トラフ ノ キョダイジシン ・ ツナミ オ ソウテイ シタ ボウサイ イシキ ト ヒナン コウドウ ニ カンスル ジュウミン イシキ チョウサ

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Abstract

<p>The 2011 Great East Japan Earthquake forced a reevaluation of the effectiveness of disaster management facilities and strategies in coastal communities where damage due to an earthquake and resulting tsunami from the Nankai Trough can be expected. Specific areas for reevaluation include (1) individual-level topics in disaster risk management, such as the use of motor vehicles to evacuate, (2) the safety of existing shelters, which came into question after government reappraisals, and (3) low tsunami evacuation rates in areas at high risk of tsunami damage, despite mandatory evacuation notices issued at the time of the Great East Japan Earthquake. This study discusses the impact of these factors on the consciousness of residents in a community where we performed action research, mainly on tsunami disaster management before 2011. Results of a questionnaire survey indicate that Okitsu residents have similar problems regarding tsunami evacuation as those revealed in the devastated areas of the Tohoku region. To promote disaster consciousness and improve tsunami evacuation rates, we suggest a new approach to evacuation drills called the single-person drill. This drill changes a community practice into an individual activity that we hope will make more residents involved in disaster risk management, and ultimately contribute to their successful tsunami evacuation.</p>

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