3:45 PM - 4:00 PM
*Shuhei Abe1, Yasuo Yabe1, Takatoshi Ito2, Masao Nakatani3, Gerhard Hofmann4, Hiroshi Ogasawara5 (1.Graduate School of Science and faculty of Science , Tohoku University, 2.Institute of Fluid Science, Tohoku University, 3.Earthquake Research Institute, the University of Tokyo, 4.ANGLO GOLD ASHANTI, 5.Faculty of Science and Engineering, Ritsumeikan University)