This poster presents the computational implementation of the South Island Velocity Model (SIVM) Version 1, constructed for use in physics-based ground motion simulation. A planned integration of the SIVM within the Unified Community Velocity Model (UCVM) framework is presented which will allow researchers to generate velocity models for use in ground motion simulations using standardized approaches. The SIVM allows any fault rupture located in the South Island to be simulated. Figure 4 illustrates the results of ground motion simulations for three rupture scenarios of the Alpine Fault.