Figure 7

(a) Pure group velocity dispersion calculated at geographic grid cell P1 (57°E and 28°N; referred in Fig. 5a) and P2 (56.5°E and 27.6°N; referred in Fig. 5a). (b) 1D shear velocity profile at P1 (black) and P2 (gray). The synthetic predicted dispersion curves are depicted by dashed lines in (a).