The detailed pattern of the surface displacement suggests ductile deformation

Drs. Otsuki and Yang conducted a detailed survery of surface displacement along the fault, using markers for the slip vectors. I show the map of the displacement vectors by them below (by the courtesy of Dr. K. Otsuki).

The distribution of the total displacement, slip direction and vertical displacement (Otsuki and Yang, 2000).

Based on this, there are several locations with anomalous slip directions, indicated by the red arrows in the figure, i.e., W or SW, aside from the athletic field in Guangfuxincun. The results by Dr. Yuichi Sugiyama, Geol. Survey of Japan, supplement this. They found 10 locations with anomalous slips, in addition to the above (Sugiyama, personal comm., 2000). The overall distribution of the fault slips looks as if they are directed in various ways, but having a tendency to be directed perpendicular to the local fault trend. This may be explained by the liquid like behavior of the sediment pused by the deeper seismic faulting, producing surface ruptures in various ways.