2005 Volume 13 Pages 289-291
Surveys were performed on disasters caused by Indian Ocean tsunami which occurred in December 26, 2004. Surveys were done in Sri Lanka and in Indonesia. Cooperative works with professors of domestic universities, who graduated from Japanese universities were the core of the survey works. From the survey results, varieties of disaster mechanisms were found. Local natural conditions and social conditions give big influences on the mechanism. In order to promote an appropriate post tsunami rehabilitation and environmental restoration process, cooperative works with local professors and engineers are essential.