11:15 AM - 11:30 AM
*Takashi Hirose1, Takeshi Nishimura1, Hisashi Nakahara1, Kimiko Taguchi1, Haruhisa Nakamichi2, Kentaro Emoto3, Satoru Hamanaka3 (1.Graduate School of Science, Tohoku University, 2.Sakurajima Volcano Research Center, Disaster Prevention Research Institute, Kyoto University, 3.Kyushu University)