Linked and fully coupled 3D earthquake dynamic  rupture and tsunami modeling for the Húsavík–Flatey  Fault Zone in North Iceland

Kutschera, Fabian; Gabriel, Alice-Agnes; Wirp, Sara Aniko; Li, Bo; Ulrich, Thomas; Abril, Claudia; Halldórsson, Benedikt

doi:https://doi.org/10.5194/se-15-251-2024

Articles | Volume 15, issue 2

https://doi.org/10.5194/se-15-251-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

(D)rifting into the future: the relevance of rifts and divergent...

https://doi.org/10.5194/se-15-251-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 15, issue 2

Research article

|

14 Feb 2024

Research article |

| 14 Feb 2024

Linked and fully coupled 3D earthquake dynamic rupture and tsunami modeling for the Húsavík–Flatey Fault Zone in North Iceland

Fabian Kutschera, Alice-Agnes Gabriel, Sara Aniko Wirp, Bo Li, Thomas Ulrich, Claudia Abril, and Benedikt Halldórsson

Data sets

HFFZ_supplement: Supplementary files for HFFZ earthquake-tsunami modeling (v1.0.1) Fabian Kutschera et al. https://doi.org/10.5281/zenodo.8360914

Model code and software

SeisSol The SeisSol Team https://github.com/SeisSol/SeisSol

samoa The sam(oa)² Team https://gitlab.lrz.de/samoa/samoa

Video supplement

HFFZ_supplement: Supplementary files for HFFZ earthquake-tsunami modeling (v1.0.1) Fabian Kutschera et al. https://doi.org/10.5281/zenodo.8360914

Short summary

We present a suite of realistic 3D dynamic rupture earthquake–tsunami scenarios for the Húsavík–Flatey Fault Zone in North Iceland and compare one-way linked and fully coupled modeling workflows on two fault system geometries. We find that our dynamic rupture simulation on a less segmented strike-slip fault system causes local tsunami wave heights (crest to trough) of up to ~ 0.9 m due to the large shallow fault slip (~ 8 m), rake rotation (± 20°), and coseismic vertical displacements (± 1 m).