*Kiyoyuki Shigeno¹, Futoshi Nanayama^2,5, Kazuaki Watanabe², Masayuki Ishii³, Keita Fukatsu⁴ (1.Meiji consultant co.,Ltd., 2. Geological Survey of Japan, AIST, 3.Ishii Professional Engineer Office, 4.Notsuke Peninsula Nature Center, 5.CWMD,Kumamoto Univ.)