| a. CASA geodetic data at one standard error compared to elastic half space models. A convergence rate of 58 mm/a was determined by repeat measurements of the Galapagos site GALA. Shortening is modeled as 6 mm/a distributed as 3mm/a on an east dipping InterAndean fault (IAF) and 3 mm/a on a generalized west dipping thrust (OF) in the Oriente Basin. The IAF dips at about 20 degrees to the east and is assumed locked from 0-10 km depth (Lavenu et al., 1995). The modelled eastern thrust fault dips at 30 degrees to the west and is locked from 0-20 km depth. Aseismic slip refers to that percentage of the slip accommodated aseismically at the subduction zone.
b. Fault model for cross section B-B'.
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