3:45 PM - 4:00 PM
*Hidekazu YOSHIDA1, Keiji KOJIMA2, Yuzo OONISHI3, Osamu TOCHIYAMA4, Makoto NISHIGAKI5, Hiroyuki TOSAKA6, Kozo SUGIHARA7, Nobuhisa OGATA7 (1.Nagoya University, 2.Geospace Labo, 3.Kansai University, 4.Nuclear Safety Research Association, 5.Okayama University, 6.University of Tokyo, 7.Japan Atomic Energy Agency)