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Tsunami evacuation behavior of coastal residents in Kochi Prefecture during the 2014 Iyonada Earthquake

Author

Listed:
  • Yingying Sun

    (Sichuan University-The Hong Kong Polytechnic University)

  • Fuko Nakai

    (Kyoto University)

  • Katsuya Yamori

    (Kyoto University)

  • Michinori Hatayama

    (Kyoto University)

Abstract

The 2014 Iyonada Earthquake, which occurred at 02:06 JST on 14 March, measured 6.2 on the Richter scale and originated in the Seto Inland Sea of Japan. To elucidate tsunami evacuation behavior, we examined two coastal communities in Kochi Prefecture, Okitsu and Mangyo, where residents evacuated to high ground in anticipation of a tsunami. In the event of a Nankai megathrust earthquake and tsunami, it is expected that a huge tsunami will be generated and these communities will be severely damaged. Before the Iyonada Earthquake, we had previously collected data about tsunami preparedness and evacuation plans from the residents of these communities, and after the earthquake, we conducted in-depth interviews and questionnaire surveys with the residents regarding the actual evacuation behaviors that they took. This enabled us to compare evacuation plans with evacuation behaviors. Results indicate that many residents responded quickly to the earthquake, either by immediately evacuating to emergency shelters on high ground or by preparing themselves for evacuation. Additionally, the earthquake revealed great differences between the prior evacuation plans and the actual situation of residents’ evacuation, such as specific triggers that significantly led residents to evacuate and the use of vehicles in evacuation.

Suggested Citation

  • Yingying Sun & Fuko Nakai & Katsuya Yamori & Michinori Hatayama, 2017. "Tsunami evacuation behavior of coastal residents in Kochi Prefecture during the 2014 Iyonada Earthquake," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 85(1), pages 283-299, January.
    • Handle: RePEc:spr:nathaz:v:85:y:2017:i:1:d:10.1007_s11069-016-2562-z
    DOI: 10.1007/s11069-016-2562-z
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    Cited by:

    1. Azin Fathianpour & Suzanne Wilkinson & Mostafa Babaeian Jelodar & Barry Evans, 2023. "Reducing the vulnerability of tourists to tsunami: challenges for decision-makers," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 118(2), pages 1315-1339, September.
    2. Yingying Sun & Ziqiang Han, 2018. "Climate Change Risk Perception in Taiwan: Correlation with Individual and Societal Factors," IJERPH, MDPI, vol. 15(1), pages 1-12, January.
    3. Dingde Xu & Wenfeng Zhou & Xin Deng & Zhixing Ma & Zhuolin Yong & Cheng Qin, 2020. "Information credibility, disaster risk perception and evacuation willingness of rural households in China," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 103(3), pages 2865-2882, September.
    4. Jiayan Chen & Jia Yu & Jiahong Wen & Chuanrong Zhang & Zhan’e Yin & Jianping Wu & Shenjun Yao, 2019. "Pre-evacuation Time Estimation Based Emergency Evacuation Simulation in Urban Residential Communities," IJERPH, MDPI, vol. 16(23), pages 1-25, November.

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