Naoki Iwata Editor

Ömer Aydan, University of the Ryukyus, Okinawa, Japan,

Takashi Ito, Tohoku University, Sendai, Japan

Takafumi Seiki, Utsunomiya University, Japan,

Katsumi Kamemura, Fukada Geological Institute, Tokyo, Japan

Naoki Iwata, Chuden Engineering Consultants Co., Ltd., Hiroshima, Japan