3D acoustic-elastic coupling with gravity: the dynamics of the 2018 Palu, Sulawesi earthquake and tsunami

  title={3D acoustic-elastic coupling with gravity: the dynamics of the 2018 Palu, Sulawesi earthquake and tsunami},
  author={Lukas Krenz and Carsten Uphoff and Thomas Ulrich and Alice‐Agnes Gabriel and Lauren S. Abrahams and Eric M. Dunham and Michael Bader},
  journal={Proceedings of the International Conference for High Performance Computing, Networking, Storage and Analysis},
  • Lukas Krenz, C. Uphoff, +4 authors M. Bader
  • Published 13 July 2021
  • Computer Science, Physics
  • Proceedings of the International Conference for High Performance Computing, Networking, Storage and Analysis
We present a highly scalable 3D fully-coupled Earth & ocean model of earthquake rupture and tsunami generation and perform the first fully coupled simulation of an actual earthquake-tsunami event and a 3D benchmark problem of tsunami generation by a megathrust dynamic earthquake rupture. Multi-petascale simulations, with excellent performance demonstrated on three different platforms, allow high-resolution forward modeling. Our largest mesh has ≈261 billion degrees of freedom, resolving at… 

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