Visualization of Earthquake Simulation Data

We present various techniques to visualize timevarying, 3D earthquake modeling datasets. We use RIVA (Remote Interactive Visualization and Analysis) to visualize the surface deformation as a synthetic interferogram overlaid on top of a high resolution LandSAT image and digital terrain. We use ParVox (PARallel VOXel Renderer) to visualize the simulated normal stress and shear stress along the Northridge fault and the Landers faults after an earthquake. We use MSLT (Multi-Surface Light Table) to visualize the simulated stress and slip on the fault surfaces underneath the terrain. The data we visualized was generated from two earthquake models, GeoFEST and Virtual California. GeoFEST is a 3D finite element simulation modeling solid stress and strain. Virtual California is a Monte Carlo code that generates simulated earthquakes on an arbitrary fault surface mesh. Both models were developed under the QuakeSIM project sponsored by ESTO/CT.