Modeling Tsunamis Generated by Submarine Landslides at Stromboli Volcano (Aeolian Islands, Italy): A Numerical Benchmark Study

Non-hydrostatic models, particularly when coupled with multilayer approaches and GPU acceleration, provide the most accurate and computationally efficient simulations of tsunami generation and propagation from submarine landslides at Stromboli Volcano. This benchmark study reveals that while hydrostatic models can approximate maximum runup near the source, they overestimate wave crest amplitude compared to non-hydrostatic models, especially in proximal areas critical for early-warning systems. The research highlights the sensitivity of waveform characterization to landslide modeling, emphasizing the need for precise source descriptions. These findings advance tsunami hazard assessment and early-warning capabilities in active volcanic contexts like Stromboli.

Esposti Ongaro, T., de’ Michieli Vitturi, M., Cerminara, M., Fornaciai, A., Nannipieri, L., Favalli, M., Calusi, B., Macías, J., Castro, M. J., Ortega, S., González-Vida, J. M., & Escalante, C. (2021). Modeling Tsunamis Generated by Submarine Landslides at Stromboli Volcano (Aeolian Islands, Italy): A Numerical Benchmark Study. Frontiers in Earth Science, 9. https://doi.org/10.3389/feart.2021.628652