Fig. 4From: Evaluation for hypocenter estimation error in the southwestern Kuril trench using Japan and Russia joint seismic dataHypocenter locations using observed travel time data. a Hypocenters determined from the Japan–Russia joint network (red circles) and from the Japan network only (end of line). b Comparison of hypocenters from the Japan–Russia joint network data (red circle) and USGS PDE catalog (U.S. Geological Survey, 2017). (end of line)Back to article page