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

@article{Krenz20213DAC,
  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},
  year={2021}
}
  • 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… Expand

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References

SHOWING 1-10 OF 94 REFERENCES
Elastic-Acoustic Coupling for 3D Tsunamigenic Earthquake Simulations with ADER-DG on Unstructured Tetrahedral Meshes
To enable physics-based 3D simulations of tsunami genesis due to earthquakes, we extend the open-source seismic wave propagation solver SeisSol (seissol.org) to scenarios which couple seismic wavesExpand
High-order finite difference modeling of tsunami generation in a compressible ocean from offshore earthquakes
To study the full seismic, ocean acoustic, and tsunami wavefields generated by subduction zone earthquakes, we have developed a provably stable and accurate finite difference method that couples anExpand
3D Linked Subduction, Dynamic Rupture, Tsunami, and Inundation Modeling: Dynamic Effects of Supershear and Tsunami Earthquakes, Hypocenter Location, and Shallow Fault Slip
Physics-based dynamic rupture models capture the variability of earthquake slip in space and time and can account for the structural complexity inherent to subduction zones. Here we link tsunamiExpand
Seismic‐ and Tsunami‐Wave Propagation of the 2011 Off the Pacific Coast of Tohoku Earthquake as Inferred from the Tsunami‐Coupled Finite‐Difference Simulation
Abstract The 2011 Tohoku earthquake ( M  9.0) caused significant hazards including strong ground motion, coseismic ground deformation, and tsunamis. For a deeper understanding of these phenomena, weExpand
Extreme scale multi-physics simulations of the tsunamigenic 2004 sumatra megathrust earthquake
TLDR
This paper presents a high-resolution simulation of the 2004 Sumatra-Andaman earthquake, including non-linear frictional failure on a megathrustsplay fault system, and establishes a novel clustered local-time-stepping scheme for dynamic rupture. Expand
Constraining shallow slip and tsunami excitation in megathrust ruptures using seismic and ocean acoustic waves recorded on ocean-bottom sensor networks
Abstract Great earthquakes along subduction-zone plate boundaries, like the 2011 magnitude 9.0 Tohoku-Oki, Japan, event, deform the seafloor to generate massive tsunamis. Tsunami wave heights nearExpand
Regional-Scale 3D Ground-Motion Simulations of Mw 7 Earthquakes on the Hayward Fault, Northern California Resolving Frequencies 0–10 Hz and Including Site-Response Corrections
Large earthquake ground-motion simulations in 3D Earth models provide constraints on site-specific shaking intensities but have suffered from limited frequency resolution and ignored site responseExpand
Should tsunami simulations include a nonzero initial horizontal velocity?
Tsunami propagation in the open ocean is most commonly modeled by solving the shallow water wave equations. These equations require initial conditions on sea surface height and depth-averagedExpand
Anatomy of strike-slip fault tsunami genesis
TLDR
It is demonstrated that ground motions due to strike-slip earthquakes can contribute to the generation of large tsunamis, under rather generic conditions, and it is concluded that near-source tsunami hazards and risk from strike-Slip faulting need to be re-evaluated. Expand
Synthesizing sea surface height change including seismic waves and tsunami using a dynamic rupture scenario of anticipated Nankai trough earthquakes
Abstract The development of offshore observation technology will provide researchers with tsunami records from within an earthquake focal area, but this will create new problems. Because seismicExpand
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