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)