Fig. 8From: 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 tomographyCheckerboard resolution test for Rayleigh waves (a, c, e, and g) and Love waves (b, d, f, and h). Depth is shown above the upper left corner of each panel. The anomaly size was ~ 0.2° (a–d) and ~ 0.1° (e–h), and the velocity anomaly amplitude was ~ 10%Back to article page