*Masayuki MURASE¹, Fumiaki KIMATA², Rikio MIYAJIMA², Hitoshi, Y. MORI³, Yoshiko YAMANAKA⁴, Shinichiro HORIKAWA⁴, Kenjiro MATSUHIRO⁴, Takahiro OHKURA⁵, Shin YOSHIKAWA⁵, Hiroyuki INOUE⁵, Taketoshi MISHIMA⁵, Tadaomi SONODA⁶, Takeshi MATSUSHIMA⁷, Kazunari UCHIDA⁷ (1.Department of Geosystem, College of Humanities and Sciences, NIHON University, 2.Tono Research Institute of Earthquake Science, Association, 3.Institute of Seismology and Volcanology, Faculty of Science, Hokkaido University, 4.Graduate School of Encironmental Studies, University of NAGOYA, 5.Aso Volcanological Laboratory, Institute for Geothermal Sciences, Graduate School of Science, Kyoto, 6.Sakurajima Volcano Research Center, Disaster Prevention Research Institute, Kyoto University, 7.Institute of Seismology and Volcanology, Faculty of Sciences, Kyushu University)