Computational Elastic Wave Propagation: Advances in Global and Regional Seismology

Gilbert Brietzke (), Heiner Igel, Gunnar Jahnke, Markus Treml, Michael Ewald, Haijiang Wang, Alain Cochard and Guoquan Wang
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Gilbert Brietzke: Ludwig-Maximilians-Universität München, Department für Geo- und Umweltwissenschaften, Sektion Geophysik
Heiner Igel: Ludwig-Maximilians-Universität München, Department für Geo- und Umweltwissenschaften, Sektion Geophysik
Gunnar Jahnke: Ludwig-Maximilians-Universität München, Department für Geo- und Umweltwissenschaften, Sektion Geophysik
Markus Treml: Ludwig-Maximilians-Universität München, Department für Geo- und Umweltwissenschaften, Sektion Geophysik
Michael Ewald: Ludwig-Maximilians-Universität München, Department für Geo- und Umweltwissenschaften, Sektion Geophysik
Haijiang Wang: Ludwig-Maximilians-Universität München, Department für Geo- und Umweltwissenschaften, Sektion Geophysik
Alain Cochard: Ludwig-Maximilians-Universität München, Department für Geo- und Umweltwissenschaften, Sektion Geophysik
Guoquan Wang: Ludwig-Maximilians-Universität München, Department für Geo- und Umweltwissenschaften, Sektion Geophysik

A chapter in High Performance Computing in Science and Engineering, Munich 2004, 2005, pp 445-458 from Springer

Abstract: Abstract We report advances in simulating wave propagation in the Earth's interior in 2D and 3D using several numerical methods. For the Earth's deep interior simulations are carried out on a global scale using axi-symmetric models and 3D spherical sections. In addition, we calculate earthquake scenarios on a regional scale for prediction of ground motion (e.g. peak motion amplitude, shaking duration), taking into account amplification effects of low velocity zones in active faults and basin structures, topography effects, shear wave splitting effects due to anisotropy and attenuation due to visco-elasticity. These predictions may be useful for risk evaluation and civil engineering purposes. We further simulate earthquake sources as dynamic fault ruptures in the context of typical fault-zone velocity structures and material interfaces. As observations of earthquake-induced ground rotations are becoming available we investigate systematically the effects of 3D heterogeneity on rotational motions.

Keywords: Ground Motion; Material Interface; Earthquake Scenario; Seismic Wave Propagation; Elastic Wave Propagation (search for similar items in EconPapers)
Date: 2005
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Persistent link: https://EconPapers.repec.org/RePEc:spr:sprchp:978-3-540-26657-0_43

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DOI: 10.1007/3-540-26657-7_43

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