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

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Cited articles

Abercrombie, R. E. and Ekström, G.: Earthquake slip on oceanic transform faults, Nature, 410, 74–77,, 2001. a
Abrahams, L. S., Krenz, L., Dunham, E. M., Gabriel, A.-A., and Saito, T.: Comparison of methods for coupled earthquake and tsunami modelling, Geophys. J. Int., 234, 404–426,, 2023. a, b, c, d, e, f, g
Abril, C., Gudmundsson, O., and the SIL seismological group: Relocating earthquakes with empirical traveltimes, Geophys. J. Int., 214, 2098–2114,, 2018. a, b, c, d
Abril, C., Gudmundsson, O., and Tryggvason, A.: Earthquake Relocation in the Tjörnes Fracture Zone, in: Proceedings of the Northquake 2019 workshop, edited by: Jónsson, S., et al., Húsavík Academic Centre, Húsavík, 21–24 May 2019, 37–40, ISBN 978-9935-405-58-6, (last access: 20 January 2024), 2019. a, b, c, d
Abril, C., Tryggvason, A., Gudmundsson, and Steffen, R.: Local Earthquake Tomography in the Tjörnes Fracture Zone (North Iceland), J. Geophys. Res.-Sol. Ea., 126, e2020JB020212,, 2021. a
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).