Fig. 3From: Report on the 15th international symposium on geo-disaster reduction, 25–30 august 2017, Oki Islands - Matsue - Kyoto, JapanOpening speech presented by (a) Prof. Yasunao Hattori, (b) Prof. Masakatsu Miyajima, (c) Mr. Soichiro YasukawaBack to article page