Articles | Volume 15, issue 6
Geosci. Model Dev., 15, 2489–2503, 2022
Geosci. Model Dev., 15, 2489–2503, 2022
Development and technical paper
25 Mar 2022
Development and technical paper | 25 Mar 2022

A global, spherical finite-element model for post-seismic deformation using Abaqus

Grace A. Nield et al.

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Cited articles

Agata, R., Barbot, S. D., Fujita, K., Hyodo, M., Iinuma, T., Nakata, R., Ichimura, T., and Hori, T.: Rapid mantle flow with power-law creep explains deformation after the 2011 Tohoku mega-quake, Nat. Commun., 10, 1385,, 2019. 
Broerse, D. B. T., Vermeersen, L. L. A., Riva, R. E. M., and van der Wal, W.: Ocean contribution to co-seismic crustal deformation and geoid anomalies: Application to the 2004 December 26 Sumatra–Andaman earthquake, Earth Planet. Sci. Lett., 305, 341–349,, 2011. 
Dziewonski, A. M. and Anderson, D. L.: Preliminary Reference Earth Model, Phys. Earth Planet. In., 25, 297–356, 1981. 
Freed, A. M., Burgmann, R., Calais, E., and Freymueller, J.: Stress-dependent power-law flow in the upper mantle following the 2002 Denali, Alaska, earthquake, Earth Planet. Sc. Lett., 252, 481–489,, 2006. 
Freed, A. M., Hirth, G., and Behn, M. D.: Using short-term postseismic displacements to infer the ambient deformation conditions of the upper mantle, J. Geophys. Res.-Sol. Earth, 117, B01409,, 2012. 
Short summary
We present a finite-element model of post-seismic solid Earth deformation built in the software package Abaqus for the purpose of calculating post-seismic deformation in the far field of major earthquakes. The model is benchmarked against an existing open-source post-seismic model demonstrating good agreement. The advantage over existing models is the potential for simple modification to include 3-D Earth structure, non-linear rheologies and alternative or multiple sources of stress change.