Landslide occurrences and recurrence intervals of heavy rainfalls in Japan

Hitoshi Saito1,2, Taro Uchida3, Hiroshi Matsuyama2 and Oliver Korup4, (1)Kanto Gakuin University, Yokohama, Japan, (2)Tokyo Metropolitan University, Hachioji, Japan, (3)University of Tsukuba, Tsukuba, Japan, (4)University of Potsdam, Potsdam, Germany