Bulletin of the Seismological Society of America; February 2006; v. 96; no. 1;
p. 1-10; DOI: 10.1785/0120050036
© Seismological Society of America
Click on image to view larger version.

Figure 3. Ray-Born synthetics for the collisional zone model in
Figure 1. The source
P wave is incident at 20° from the vertical. The scattering
is incorporated by using point scatterers embedded in a two-layer velocity
structure. The modeled phases include the direct ps, and the
surface-reflected pPs, pSp, pSs, and pPp
phases. The seismograms have been laterally shifted to correct for the incident
angle. The direct P phase would arrive at time zero but has been muted
out.