Fig. 3.

(a) ΔCFF calculated for the slip distribution with the center of slip distant from the trench (Fig. 1(a)). The colors of the focal mechanisms indicate the ΔCFF values. The larger of the ΔCFF values for the two nodal planes is shown. (b) ΔCFF calculated for the slip distribution with the center of slip close to the trench (Fig. 1(b)). The lines C–D and E–F indicate the locations of ΔCFF profiles shown in Fig. 4.