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JDR Vol.20 No.3 pp. 342-357
(2025)
doi: 10.20965/jdr.2025.p0342

Paper:

Study on the Process of Behavioral Change of Local Residents in Preparation for a Large-Scale Eruption of Sakurajima

Ken Sugo*1, Masamitsu Onishi*1,† ORCID Icon, Yoshiyuki Yama*2, Masato Iguchi*3 ORCID Icon, Genta Nakano*4 ORCID Icon, Kensuke Takenouchi*5 ORCID Icon, Katsuya Yamori*4 ORCID Icon, and Hiroshi Shimamoto*6 ORCID Icon

*1Department of Urban Management, Graduate School of Engineering, Kyoto University
Kyotodaigaku-Katsura, Nishikyo-ku, Kyoto, Kyoto 615-8540, Japan

Corresponding author

*2Institute of Disaster Area Revitalization, Regrowth and Governance, Kwansei Gakuin University
Nishinomiya, Japan

*3Crisis Management Department, Kagoshima City Office
Kagoshima, Japan

*4Disaster Prevention Research Institute, Kyoto University
Uji, Japan

*5Faculty of Engineering and Design, Kagawa University
Takamatsu, Japan

*6Department of Civil and Environmental Engineering, University of Miyazaki
Miyazaki, Japan

Received:
January 22, 2025
Accepted:
March 24, 2025
Published:
June 1, 2025
Keywords:
large-scale eruption, massive fall of pumice and volcanic ash, implementation gap, workshop design, behavioral change
Abstract

We have been working for about three years on collaborative activities between experts and residents aimed at enhancing disaster preparedness against the risk event of the massive fall of pumice and volcanic ash due to a large-scale eruption in Kagoshima City, which is expected to occur within the next few decades due to a major eruption of Sakurajima Volcano. In this study, we identified the behavioral changes of residents observed through collaborative activities undertaken by experts and residents over a long period, using ethnography and individual interviews, and discussed the mechanisms of these changes based on the framework of the theory of planned behavior. As a result, while the specific behaviors arising from collaborative activities were diverse, the behavioral changes could be broadly categorized into two types: “preparing” behaviors that are self-contained and “speaking” behaviors that involve engaging with others. Furthermore, among the survey participants who experienced changes in both “preparing” and “speaking” behaviors, a higher proportion reflected on experiences that stirred emotions such as “gratitude” and “anxiety” as turning points.

Local residents observing the Sakurajima pumice deposit trench

Local residents observing the Sakurajima pumice deposit trench

Cite this article as:
K. Sugo, M. Onishi, Y. Yama, M. Iguchi, G. Nakano, K. Takenouchi, K. Yamori, and H. Shimamoto, “Study on the Process of Behavioral Change of Local Residents in Preparation for a Large-Scale Eruption of Sakurajima,” J. Disaster Res., Vol.20 No.3, pp. 342-357, 2025.
Data files:
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Last updated on Jun. 12, 2025