9:45 AM - 10:00 AM
*Itoko Tamura1, Kiyohide Mizuno2, Masayuki Utsunomiya2, Terumasa Nakajima2, Haruo Yamazaki1 (1.Department of Geography,Graduate School of Science,Tokyo Metropolitan University, 2.Research Institute of Geology and Geoinformation, Geological Survey of Japan, AIST)