6:15 PM - 7:30 PM
*Akinobu MIYAKOSHI1, Takeshi HAYASHI2, Masafumi KAWAI3, Shinichi KAWASHIMA3, Kuniki KOKUBUN3, Hideki HAMAMOTO4, Shoichi HACHINOHE4 (1.Geological Survey of Japan, AIST, 2.Faculty of Education and Human Studies, Akita University, 3.Civil Engineering Support and Training Center, Tokyo Metropolitan Government, 4.Center for Environmental Science in Saitama)