Fig. 1: Improvements in constraining subsurface coupling using earthquake focal mechanisms.
From: 3D architecture and complex behavior along the simple central San Andreas fault
Schematic comparison of data and assumptions used in a previous geodetic inversion studies11,12,13,15 and b this study relying on the spatial distribution of earthquakes and slip directions from focal mechanisms. Dark red areas denote locked patches and light red areas denote creeping areas. Modeled fault c creep rate and d creep direction around a locked patch. Yellow stars and beachballs denote earthquake locations and focal mechanisms, respectively. Black and blue beachballs are on-fault and off-fault earthquakes, respectively. Red arrows show the assumed fault slip direction. Black thin lines in (d) denote local creep directions on the NE side of the fault.
