Fig. 2From: High-resolution three-dimensional azimuthal velocity anisotropy of S-waves in southern-central Japan, based on ambient noise tomographyRaypaths coverage derived from the inversion model at four frequencies: a 1.0Â Hz, b 0.125Â Hz. Black and red triangles represent the locations of permanent and temporary seismic stations, respectively. Blue lines represent the ray pathsBack to article page