Roles of Hydrothermal Circulation in Heat Flow at the Seafloor and Decreases in the Remaining Amount of Magnetization of the Northeast Japan Subduction Zone

Dongwoo Han1, Changyeol Lee1 and Yong Hee Park2, (1)Yonsei University, Department of Earth System Sciences, Seoul, South Korea, (2)Kangwon National University, Chuncheon, South Korea