Fig. 4

(a–c) Topographic images of some of the visited sites (GE3D15,16,17. Produced by Google Earth (version 10.49.0.0 online); https://earth.google.com/web/. (d) Locations of sites on the shake-map from Fig. 1.
(a–c) Topographic images of some of the visited sites (GE3D15,16,17. Produced by Google Earth (version 10.49.0.0 online); https://earth.google.com/web/. (d) Locations of sites on the shake-map from Fig. 1.