Natural Hazards and Earth System Sciences
Natural Hazards and Earth System Sciences
NHESS
Articles | Volume 26, issue 8
Articles | Volume 26, issue 8
https://doi.org/10.5194/nhess-26-3597-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/nhess-26-3597-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 26, issue 8
Research article
 | 
04 Aug 2026
Research article |  | 04 Aug 2026

Basin-scale geometric focusing: a probabilistic-geometric framework for global tsunami exposure assessment and the 2025 Kamchatka Peninsula tsunami

Ali Abdolali, Michael-Angelo Y.-H. Lam, Usama Kadri, Matt Malej, Maxim Filimonov, and Fengyan Shi

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Short summary
This study introduces a hybrid tsunami risk method that fuses probabilistic hazard assessment with ray tracing to enable rapid global mapping. Using historical tsunamigenic earthquake statistics, it identifies how bathymetry focuses wave energy into convergence hotspots. Validated with the 2025 M8.8 Kamchatka and 2011 M9.0 Tohoku events, high-fidelity Boussinesq outputs showed strong observational skill, offering a robust basis for quick hazard evaluation and coastal resilience planning.
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