Mitigation Systems by Hazard Maps, Mitigation Plans, and Risk Analyses Regarding Volcanic Disasters in Japan
Yoichi Nakamura*, Kazuyoshi Fukushima*, Xinghai Jin*,
Motoo Ukawa** Teruko Sato**, and Yayoi Hotta**
*Dept of Earth Sciences, Utsunomiya University, 350 Mine, Utsunomiya, Tochigi 321-8505, Japan
**National Research Institute for Earth Science and Disaster Prevention (NIED),3-1 Tennoudai, Tsukuba, Ibaraki 305-0006, Japan
More than 60 volcanic hazard maps have been published on 38 of Japan’s 108 active volcanoes. Two maps were published before 1990, 17 after the 1991 eruptions of Unzen, and 19 after the 2000 eruptions of Usuzan and Miyakejima. Large eruptions greatly increase concern over volcanic hazards. The earlier academic maps themselves have changed from being specialist-oriented to being designed to be more easily understood with volcanic terms clearly explained. This is especially true of revised maps. The 1961 Disaster Countermeasures Basic Act directs that local disaster management plans be promoted by local governments, but only 5 of the local governments in the 25 prefectures neighboring on active volcanoes have set up established specific volcano-oriented antidisaster programs. Others mention volcanic disaster measures in the context of general or storm and flood disaster measures, and another six make no mention of particular measures for volcanic disasters. This lack of concern is somewhat understandably related to budget policies, but real-time hazard maps with probability tree algorithms for forecasting volcanic events are needed to manage potential volcanic disasters effectively. For this purpose, volcanic disaster measures with volcanic risk, or threat analyses assessments must be completed, but no local governments have yet conducted assessments of volcanic risk analyses. Whatever and however complex the reasons, local governments should, cooperating with volcanologists and supported by local residents, take action before an eruption next occurs.
Motoo Ukawa Teruko Sato, and Yayoi Hotta, “Mitigation Systems by Hazard Maps, Mitigation Plans, and Risk Analyses Regarding Volcanic Disasters in Japan,” J. Disaster Res., Vol.3, No.4, pp. 297-304, 2008.
-  D. Shimozuru, “Volcano — For Disaster Mitigations,” Asakura Publishing Company, Tokyo, 252pp, 2000 (in Japanese).
-  National Land Agency, “Guide for Making Manual of Disaster Maps of Volcanic Hazard,” Japan, National Land Agency, 153pp, 1992 (in Japanese).
-  Y. Nakamura and S. Aramaki, “Picture-related database of published volcanic hazard maps in Japan,” Abstract of International Workshop on Strategy of Volcanic Disaster Mitigation, National Research Institute for Earth Science and Disaster Prevention, Japan, 2003.
-  K. Uhira, “Revised Definition and Classification of Active Volcanoes in Japan, based on their Past Activities,” Volcanological Division, Seismology and Volcanology Department, Japan Meteorological Agency, pp. 1-6, 2003 (in Japanese).
-  Y. Nakamura, “An Assessment of Review on Volcanic Hazard Maps of Japan with a Database System,” Volcanic Hazard Maps of Japan, Chikyu, 27, pp. 18-20, 2005 (in Japanese).
-  Y. Nakamura, S. Aramaki, T. Sato, Y. Hotta, and M. Ukawa, “Volcanic Hazard Maps of Japan (with 2 DVD),” Technical Note of the National Research Institute for Earth Science and Disaster Prevention, Japan, 292, pp. 1-20, 2006 (in Japanese).
-  T. Sato, Y. Hotta, M. Ukawa, Y. Nakamura, and S. Aramaki, “Hyperbase of Volcanic Hazard Maps in Japan,” Cites on Volcano Conf., Abstract vol.22-P-11, 2007.
-  Disaster Information Laboratory, Disaster Prevention System Reserch Center, National Research Institute for Earth Science and Disaster Prevention, Japan,“Volcanic Hazard Maps of Japan with additional edition DVD3,” Reference material to the Technical Note of the National Research Institute for Earth Science and Disaster Prevention, Japan, 292, pp. 1-8, 2007.
-  Y. Nakamura, K. Fukushima, X. Jin, M. Ukawa, and T. Sato, “An Assessment of Japanese Mitigation Systems on Volcanic Disasters: A Review of Hazard Maps, Mitigation Programs, and Risk Analyses,” Cites on Volcano Conf., Abstract Vol.22-O-11, 2007.
-  K. Ikeuchi and T. Yokota, “Volcanic Disaster Prevention Countermeasures in Terms of Evacuation Systems at Eruptions and Related Phenomena,” Cites on Volcano Conference, Abstract Vol.21a-O-10, 2007.
-  Cabinet Office, “Disaster Management in Japan,” Disaster Management, Cabinet Office, The Government of Japan, 315pp, 2007 (in Japanese with English translation).
-  Cabinet Office, “White Paper on A Disaster Prevention, 2007 version,” Disaster Management, Cabinet Office, The Government of Japan, 315pp, 2007 (in Japanese).
-  W. P. Aspinall, “Structured elicitation of expert judgment for probabilistic hazard and risk assessment in volcanic eruptions,” in: Mader, H. M. Coles, S. G. Connor, C. B, and L. J. Connro, ed. “Statistics in Volcanology,” Special Publications of IAVCEI 1, Geological Society, London, pp. 16-30, 2006.
-  D. Johnston and K. Ronan, “Risk education and intervention,” In: Sigurdsson, H. Houghton, B. McNutt, S. R, and J. Stix, eds, “Encyclopedia of Volcanoes (in Encyclopedia of Volcanoes),” Academic Press, UK, pp. 1229-1240, 2000.
-  J. W. Ewert, M. Guffanti, and T. L. Murray, “An Assessment of Volcanic Threat and Monitoring Capabilities in the United States: Framework for a National Volcano Early Warning System,” USGS OPEN-FILE REPORT 2005-1164, U.S. Geological Survey, USA, 2005.
-  T. I. Tilling, “Volcanic hazards and their mitigation: Progress and problems,” Rev. Geophys. 27(2), pp. 237-269, 1989.
-  S. Aramaki, “Last 30 Years of Volcanic Hazard Mitigation in Japan, ” Abstract Volume, Cites on Volcano 5 Conference, Shimabara, Japan. CL2, p1, 2007.
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