Fig. 6. Schematic of the SJFZ trifurcation area.
Three main right-lateral strike-slip faults are near vertical in the upper 10 km and dip roughly 70° below this depth. In the top 5 km, there is a broad damage zone associated with the ongoing regional deformation. Between the CL and BR faults, there is a seismically active damage zone at depth consisting of interlaced normal and strike-slip faults. The damage zone produces most of the earthquakes in the region and appears to terminate roughly halfway between CL and BR.