Upper mantle structures beneath the South Pacific superswell region using broadband data from ocean floor and islands

Takehi Isse1, Hiroko Sugioka2, Aki Ito3, Hajime Shiobara4, Dominique Reymond5 and Daisuke Suetsugu3, (1)Earthquake Research Institute, The University of Tokyo, Tokyo, Japan, (2)Kobe University, Graduate School of Science, Kobe, Japan, (3)JAMSTEC, Yokosuka, Japan, (4)University of Tokyo, Bunkyo-ku, Japan, (5)Laboratoire de Géophysique Tahiti, CEA/LDG, Papeete, French Polynesia