Figure 16. Time progression of the Landers rupture for the combined data model given at intervals of 1 sec as labeled. The contour interval is 0.5 m. For reference, a rupture velocity roset is given with arrows. Lines indicate selected regions of fairly constant rupture velocity. From top to bottom, these lines represent 3.6, 1.0, 1.4, 4.0, and 2.1 km/sec, respectively, as labeled.