Seismological observation in outer-rise of the Japan Trench toward exploring interaction between megathrust and incoming plate

Shuichi Kodaira1, Yasuyuki Nakamura2, Gou Fujie3, Seiichi Miura4, Koichiro Obana3 and Narumi Takahashi3, (1)Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokohama, Japan, (2)R&D Center for Earthquake and Tsunami, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokohama, Japan, (3)R&D Center for Earthquake and Tsunami, Japan Agency for Marine-Earth Science and Technology, Yokohama, Japan, (4)Japan Agency for Marine-Earth Science and Technology, R&D Center for Earthquake and Tsunami, Yokohama, Japan