Analysis of Global Positioning Systems Data from the San Bernardino Mountains

Event Center A & B

The San Andreas Fault and smaller surrounding faults in the San Bernardino Section were tested with Global Positioning Systems (GPS) to calculate the relative movement of the benchmarks; the displacement of the benchmarks were measured in mm/yr. There were 540,801 combinations of slip tested on 15 faults. Evaluation of the models used the ?² equation to assess the deviation of the model from the site velocities. The three models combined the best-fit slip rate, slowest and fastest San Andreas Fault values; the numbers were 9 mm/yr, 0 mm/yr, and 18 mm/yr with a fixed locking depth between the three models.