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3D numerical modeling of landslide-generated tsunamis around a conical island

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Abstract

This paper presents numerical computations of tsunamis generated by landslides falling along the flank of a conical island. The model used is the fully three-dimensional commercial code FLOW-3D, based on the VOF technique for the treatment of the free surface. The model results are compared against available experimental data that allow validation of the model, evaluation of its accuracy, and estimation of the computational costs. The main conclusion of this research is that the model is applicable at reasonable costs for a few accurate simulations that may be used for preparing precomputed inundation maps of coasts prone to the risk of tsunamis inundation.

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Acknowledgements

This work was funded by the Italian Ministry of Research (MIUR) under the research project ”Development and validation of hydraulic and geologic tools for supporting a Tsunami Early Warning System. Implementation to the Stromboli (Eolie) landslide case” (PRIN-2007).

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Authors and Affiliations

  1. DSIC, University of Roma Tre, Via V. Volterra, 62, 00146, Rome, Italy

    F. Montagna & G. Bellotti

  2. DISAT-LIAM, University of L’Aquila, P.le Pontieri, 1, Monteluco di Roio, 67040, L’Aquila, Italy

    M. Di Risio

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  1. F. Montagna
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  2. G. Bellotti
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  3. M. Di Risio
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Correspondence to F. Montagna.

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Montagna, F., Bellotti, G. & Di Risio, M. 3D numerical modeling of landslide-generated tsunamis around a conical island. Nat Hazards 58, 591–608 (2011). https://doi.org/10.1007/s11069-010-9689-0

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  • DOI: https://doi.org/10.1007/s11069-010-9689-0

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