Subslab heterogeneity and geodynamics of Japan subduction zone

Dear readers, A file named "JAPAN_P_TOMOG.csv" contains crust and upper mantle P-wave tompgraphy beneath Japan subduction zone. The data format is as follows: 1st column: longitude (deg) 2nd column: latitude (deg) 3rd column: depth (km) 4th column: dVp (%) 5th column: Ray hit count 6th column: layer number (1: upper crust, 2: lower crust, 3: mantle above the Pacific (PAC) slab, 4: mantle within the PAC slab, 5: mantle beneath the PAC slab) FORMAT: (3(f9.2, a3), f9.2, a3, f9.0, a3, f3.0) These values are obtained by interpolation from the values at surrounding 3-D grid nodes (A-grid and B-grid) used for tomographic inversion. We hope it is useful to you. Kind wishes, Motoya Suzuki, Dapeng Zhao, & Genti ToyokuniTohoku University, JapanE-mail: [e-mail] Reference:Suzuki, M., Zhao, D., & Toyokuni, G. (2025). Subslab heterogeneity and geodynamics of Japan subduction zone Journal of Geophysical Research: Solid Earth, in submission.