Inversion of Longer Period OBS Waveforms for P Structures in the Oceanic Lithosphere and Asthenosphere

Nozomu Takeuchi1, Hitoshi Kawakatsu1, Hajime Shiobara1, Takehi Isse1, Hiroko Sugioka2, Aki Ito3 and Hisashi Utada1, (1)Earthquake Research Institute, The University of Tokyo, Tokyo, Japan, (2)Kobe University, Hyogo, Japan, (3)JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan