SC²S Colloquium - September 7, 2015

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Date: September 7, 2015
Room: 02.07.023
Time: 3:00 pm, s.t.

Johannes Klicpera : Fault Parameterization and Rough Fault Earthquake Simulations in SeisSol

For a precise earthquake simulation the interaction between the rupture process and seismic waves is crucial. However, a dynamic rupture simulation requires many additional parameters, the choice of which is crucial for its outcome. To facilitate this parameterization, a new input method for fault parameters in SeisSol is developed in the first part of this thesis. It uses geometric shapes to provide an intuitive syntax and is compatible with SPECFEM3D. The method can furthermore define the stress field in fault-local coordinates. The procedure is then evaluated using the Southern California Earthquake Center benchmark TPV10 and a sinusoidal fault. To investigate the impact of fault roughness parameters, this method is then used for the development of a tool for fully automatic rough fault model and mesh generation and simulation. The roughness profile is created using self-affine fractals. The tool is then evaluated by creating and simulating two rough faults.