1. San Andreas Big Bend A geometric feature Restraining the relative plate motion Nature’s solution Impacts include:  patterns of faults, seismicity  Rupture propagation  Possibility of multi-fault ruptures  …

2. Garlock Fault (King et al, 1985)

3. Garlock Fault (King et al, 1985)

4. Big Bend Evolution (Dolan et al, 2007)

5. Reference King, G., Nábělek, J., 1985, Role of Fault Bends in the Initiation and Termination of Earthquake Rupture Asperity and Barriers, Science, Vol. 228, No. 4702, pp. 984-987 Dolan, J., Bowman, D., Sammis, C., 2007, Long- range and long-term fault interactions in Southern California, Geology, v. 35 no. 9 p. 855-858 Li, Q., Liu, M., 2006, Geometrical impact of the San Andreas Fault on stress and seismicity in California, Geophysical Research Letters, Vol 33, L08302