Fig. 7

a Same as Fig. 6a but for an interface with a dip angle of 5° toward the y-direction. The label d′ indicates the distance from the station to the dipping interface. b Same as Fig. 6b but for the model in Fig. 7a. c The y–z cross-sections of Figs. 6a and 7a. Labels d and d′ indicate the distance from station to interface. d Red and black lines indicate travel times of S reflection as a function of rotation angle for Figs. 6b and 7b, respectively