Fig. 19
From: Seismic imaging of slab metamorphism and genesis of intermediate-depth intraslab earthquakes
Seismic velocity structure along the lower seismic plane under central Tohoku. Shown are across-arc vertical cross-sections of a P-wave velocity (Vp), b S-wave velocity (Vs), and c Vp/Vs ratio under central Tohoku. P-wave velocity, S-wave velocity, and Vp/Vs ratio along the line in the inset map are shown by the color scale at the right of each figure. Black dots are earthquakes. (After Zhang et al. 2004)