13:45 〜 14:00 [SIT22-01] S-velocity structure of the mantle transition zone beneath the Northwestern Pacific inferred from waveform inversion and its geophysical interpretation *山谷 里奈1、Borgeaud Anselme1、河合 研志1、Ballmer Maxim2 (1.東京大学理学系研究科地球惑星科学専攻、2.チューリッヒ工科大学)