An arcuate structural anomaly at the boundary between the rupture zone of the 1944 Nankai earthquake and the area with slow earthquakes off eastern Shikoku Island

Yasuyuki Nakamura1, Gou Fujie1, Kazuya Shiraishi1, Shuichi Kodaira1 and Gaku Kimura2, (1)Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokohama, Japan, (2)JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan