Articles | Volume 7, issue 3
Geosci. Model Dev., 7, 847–866, 2014
Geosci. Model Dev., 7, 847–866, 2014

Development and technical paper 13 May 2014

Development and technical paper | 13 May 2014

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

C. Pelties1, A.-A. Gabriel1, and J.-P. Ampuero2 C. Pelties et al.
  • 1Department of Earth and Environmental Sciences, Geophysics, Ludwig-Maximilians-Universität, München, Germany
  • 2Seismological Laboratory, California Institute of Technology, Pasadena, California, USA

Abstract. 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.