Hayward Fault USGS-SFSU Afterslip Site 27.81 km-39th Ave. creep rate (mm/yr) movement (mm) std. dev. # of years year date simple average linear regression 0.0 1974.274 10-Apr-74 52.0 0.3 14.084 1988.358 10-May-88 3.7 58.6 0.9 18.343 1992.617 13-Aug-92 3.2 75.2 0.9 19.701 1993.975 22-Dec-93 3.8 68.1 1.2 20.310 1994.584 1-Aug-94 3.4 78.0 0.6 21.362 1995.636 20-Aug-95 3.7 80.0 0.7 22.357 1996.631 18-Aug-96 3.6 84.6 1.1 23.353 1997.627 17-Aug-97 3.6 89.9 0.4 24.389 1998.663 30-Aug-98 3.7 93.4 0.3 25.386 1999.660 29-Aug-99 3.7 98.4 0.8 26.589 2000.863 11-Nov-00 3.7 102.0 0.6 27.544 2001.818 26-Oct-01 3.7 105.1 0.9 28.560 2002.834 1-Nov-02 3.7 108.5 0.7 29.521 2003.795 18-Oct-03 3.7 114.0 0.9 30.518 2004.792 16-Oct-04 3.7 118.4 0.9 31.495 2005.769 8-Oct-05 3.8 126.3 0.6 32.533 2006.807 22-Oct-06 3.9 3.84 ± 0.11