Articles | Volume 25, issue 6
https://doi.org/10.5194/nhess-25-1881-2025
https://doi.org/10.5194/nhess-25-1881-2025
Research article
 | 
06 Jun 2025
Research article |  | 06 Jun 2025

Lesser Antilles seismotectonic zoning model for seismic hazard assessment

Océane Foix, Stéphane Mazzotti, Hervé Jomard, Didier Bertil, and the Lesser Antilles Working Group

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Cited articles

Aitken, T., Mann, P., Escalona, A., and Christeson, G. L.: Evolution of the Grenada and Tobago basins and implications for arc migration, Mar. Petrol. Geol., 28, 235–258, https://doi.org/10.1016/j.marpetgeo.2009.10.003, 2011. 
Allen, R., Collier, J., Henstock, T., Stewart, A., and Goes, S.: A new tectonic model for the Lesser Antilles: Evidence for a buried arc in the eastern Caribbean, European Geophysical Research Abstracts, Vol 21, EGU2019-7944, 2019. 
Allen, R. W., Collier, J. S., Henstock, T. J., and The VoiLA Consortium: The role of crustal accretion variations in determining slab hydration at an Atlantic subduction zone, J. Geophys. Res.-Solid Earth, 127, e2022JB024349, https://doi.org/10.1029/2022JB024349, 2022. 
Avital, M., Kamai, R., Davis, M., and Dor, O.: The effect of alternative seismotectonic models on PSHA results – a sensitivity study for two sites in Israel, Nat. Hazards Earth Syst. Sci., 18, 499–514, https://doi.org/10.5194/nhess-18-499-2018, 2018. 
Baker, J. W., Bradley, B. A., and Stafford, P. J.: Seismic hazard and risk analysis, Cambridge University Press, https://doi.org/10.1017/9781108425056, 2021. 
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By analyzing historical and instrumental seismic data, fault knowledge, and geodetic measurements, we provide a new understanding of seismic hazard in the Lesser Antilles via seismotectonic zoning. We propose new models that can have a significant impact on seismic hazard assessment, such as the inclusion of mantle wedge seismicity, the inclusion of volcanic seismicity, and a complete revision of the subduction interface zoning.
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