Fig. 8
From: S-wave attenuation structure beneath the northern Izu–Bonin arc
Vertical cross sections of seismic structures along the volcanic front (A–A′ in the inserted map). a Parameter κ of random inhomogeneities (Takahashi et al. 2011), b Q −1 at 8–16 Hz (this study), and c P- and S-waves velocity perturbation (Obana et al. 2010). Triangles in (a) and (b) are the Quaternary volcanoes. Dots and black lines in (c) represent the hypocenters within 20 km of the cross section and the top of the subducting Pacific plate, respectively