Waveform anomaly caused by strong attenuation in the crust and upper mantle in the Okinawa Trough region

Simanchal Padhy1, Takashi Furumura2 and Takuto Maeda2, (1)CSIR-National Geophysical Research Institute, Hyderabad, Seismology, Hyderabad, India, (2)ERI, The University of Tokyo, Tokyo, Japan