Stations whose post-seismic velocities may have been perturbed by the Landers earthquake are allowed to have different secular velocities before and after the earthquake. All together the network has about 400 stations covering most of the major faults in southern California, with their horizontal station velocity uncertainties Fig. Preliminary result of the velocity map 3.0, each arrow starts from station location and points to its motion direction. The red vectors are station velocities which probably have been affected significantly by post-Landers deformation. The blue ones are otherwise.
Stars show the epicentral locations of earthquakes whose coseismic effects are modeled.
Maximum horizontal shear strain rates in southern California, derived from the velocity solution.