Fig. 7
Vertical cross sections of the (left) JMA hypocenters and (right) relocated hypocenters using the catalog-derived differential time data. a E–W vertical cross sections. b N–S vertical cross sections. Purple arrows denote distinct seismicity dipping northwestward. Profile locations are shown on the inset map. E–W profiles are spaced at a 0.05° (~ 5.5 km) interval, and N–S profiles are spaced at a 0.07° (~ 6.3 km) interval. The earthquakes in each profile do not appear in the adjacent profiles