Data files for 'Tan et al., (2022). Seismogenesis of the 2021 Mw 7.1 earthquake sequence near the northeastern Japan revealed by double-difference seismic tomography'

catalog.dat : the selected earthquake phase data (originated from Hi-net, https://www.hinet.bosai.go.jp/?LANG=en) station.dat : the seismic station coordinates MOD : the initial velocity models (including the grid nodes, Vp & Vp/Vs) relocation.dat : the earthquake relocations by the DD tomography Vp_model.dat, Vs_model.dat, VpVs_model.dat : the inverted 3D velocity models by DD tomography (having exactly the same layout as MOD)catalog.dat：筛选后的地震震相数据（源自Hi-net，来源网址：https://www.hinet.bosai.go.jp/?LANG=en） station.dat：地震台站坐标数据 MOD：初始速度模型（包含网格节点、纵波速度（Vp）与Vp/Vs比值） relocation.dat：通过双差层析成像（DD tomography）得到的地震重定位结果 Vp_model.dat、Vs_model.dat、VpVs_model.dat：通过双差层析成像（DD tomography）反演得到的纵波速度（Vp）三维模型、横波速度（Vs）三维模型及Vp/Vs比值三维模型，三者与MOD的布局完全一致