This work was supported by grants from the Department of Energy and the USGS-NEHRP external program. SAR data are copyrighted by the European Space Agency and were obtained via the WInSAR consortium.

Figure 2.39: PS-InSAR evidence for creep on the Rodgers Creek fault. (a) Regional surface velocity field. Solid lines show mapped active faults. Dashed box shows location of (b). [SR: Santa Rosa, RP: Rohnert Park, CT: Cotati, NP: Napa, SF: San Francisco, OK: Oakland, SPB: San Pablo Bay] (b) Detail of velocities in the Santa Rosa area. Note change in color palette. Locations of 15 km-long fault-perpendicular profiles are shown. White triangle indicates location of alignment array RC1. (c) Profiles of PS-InSAR data across the Rodgers Creek fault near Santa Rosa. Red points signify PS velocity measurements within 2.5 km of the profile line; error bars indicate $1\sigma$ uncertainties. Black dashed line indicates the best average linear fit to velocities from a range of windows either side of the fault. Gray box indicates the approximate location of the fault.
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