Average Velocity
The integrated Sentinel-1 InSAR and GNSS time-series reveal a complex time-averaged velocity field (Fig. 2, 3) over the entire San Andreas fault system. The most prominent feature is the large-scale tectonic motion between the two plates with sharp transitions at creeping strike-slip faults and broader transitions at more deeply-locked faults. Superimposed on this tectonic pattern are numerous nontectonic deformations mostly related to hydrological and hydrothermal processes. These non-tectonic features are highlighted in the semi-vertical component (Fig. 2d). Our velocity maps are available as kmz files (http://topex.ucsd.edu/gmtsar/tar/San_Andreas_Xu_et_al.kmz ) so that the user can examine in detail the correlations between vertical deformation and natural and man-made surface features (See Supplementary Text S1 and Movie S1 for much more details).