Verification of an ADER-DG method for complex dynamic rupture problems

Pelties, C.; Gabriel, A.-A.; Ampuero, J.-P.

We present results of thorough benchmarking of an arbitrary high-order derivative discontinuous Galerkin (ADER-DG) method on unstructured meshes for advanced earthquake dynamic rupture problems. We verify the method by comparison to well-established numerical methods in a series of verification exercises, including dipping and branching fault geometries, heterogeneous initial conditions, bimaterial interfaces and several rate-and-state friction laws. We show that the combination of meshing flexibility and high-order accuracy of the ADER-DG method makes it a competitive tool to study earthquake dynamics in geometrically complicated setups.

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Pelties, C. / Gabriel, A.-A. / Ampuero, J.-P.: Verification of an ADER-DG method for complex dynamic rupture problems. 2014. Copernicus Publications.

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