Japan Geoscience Union Meeting 2015

Presentation information


Symbol S (Solid Earth Sciences) » S-VC Volcanology

[S-VC48] Mitigation of Volcanic disaster - Basic and applied research

Sun. May 24, 2015 9:00 AM - 10:45 AM A05 (APA HOTEL&RESORT TOKYO BAY MAKUHARI)

Convener:*Kazutaka Mannen(Hot Springs Research Institute of Kanagawa Prefecture), Shinji Takarada(Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology), Eisuke Fujita(National research Instituite for Earth science and Disaster prevention, Volcanic research department), Hisashi Sasaki(Asia Air Survey Co., Ltd.), Chair:Hisashi Sasaki(Asia Air Survey Co., Ltd.), Shinji Takarada(Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology)

10:15 AM - 10:30 AM

[SVC48-06] Evaluation of volcanic disaster risk: the cooperation between lava flow simulator and building database

*Eisuke FUJITA1, Hiroshi KANASUGI2, Ryosuke SHIBASKI2 (1.NIED, 2.CSIS, University of Tokyo)

Keywords:volcanic disaster, risk evaluation, lava flow simulation, building database, exposure, vulnerability

Volcanic disaster is caused by the various volcanic phenomena, affecting some damages around neighbors. For the evaluation of volcanic disaster, the eruption event tree
(Newhall and Hoblitt, 2002) is widely applied and we judge the forthcoming phenomena from several possibilities at the event tree nodes. Each node of the event tree is defined as: node 1: unrest, 2: origin, 3: outcome, 4: magnitude, 5: phenomena, 6: sectors, 7: distance, 8: exposure and 9: vulnerability. For nodes 1 ? 7, the evaluation is based on volcanology, but for nodes 8 and 9, social factors are incorporated For the area in risk of the volcanic disasters, we made a time- and space dependent model of population, real estates, transportation infrastructures, and production bases, and evaluate its temporal evolution. Our volcanic disaster risk management system applied the RDBMS (Relational DataBase Management System). LavaSIM, lava flow simulator is used for volcanic hazard evaluation. In addition, for the evaluation of exposures and vulnerabilities, we used the data developed by CSIS, the University of Tokyo. The new system enables quick evaluation of volcanic disaster by comparing lava flow and building data by use of the comparison in RDBMS, and expresses the results in GIS. In near future, people flow data is also incorporated into system as the data of exposures and vulnerabilities.