Fig. 7From: Identification of a nascent tectonic boundary in the San-in area, southwest Japan, using a 3D S-wave velocity structure obtained by ambient noise surface wave tomographyRay-path coverage for two selected periods of Rayleigh waves (a and c) and Love waves (b and d). In each panel, frequency is shown above the upper left corner. Inverted black triangles indicate seismic stations, and blue lines indicate ray pathsBack to article page