Soutenance de thèse de Exneyder Andres Montoya Araque

Doctorant de l'équipe OMEIR, sous la direction de Fernando Lopez-Caballero et de Silvana Montoya-Noguera

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Performance-based seismic landslide hazard assessment: Numerical frameworks for regional and local-scale applications

This thesis develops and implements computational frameworks that couple ground motions, whether recorded or physics-based simulated, with permanent slope displacement analyses to perform performance-based seismic landslide hazard assessment. It comprises (i) an open-source tool for computing Newmark displacements at regional scale, (ii) the use of a spectral-element-based simulation code for seismic wave propagation, integrated into an SEM-Newmark framework validated against the 2019 Mesetas earthquake, and (iii) a probabilistic hazard approach based on fragility curves that incorporates uncertainties in both triggering and conditioning factors. Taken together, these tools enhance the understanding of seismic landslide hazard and provide a scientific basis for risk mitigation, land-use planning, and the design of early-warning systems.

Stefania SICA, Rapporteuse & Examinatrice, Associate Professor, University of Sannio (Italy)
Etienne BERTRAND, Rapporteur & Examinateur, Professor, Directeur de recherche, Université Gustave Eiffel (France)
Jean-Francois SEMBLAT, Examinateur, Professor, ENSTA-Paris (France)
Karim TARBALI, Examinateur, Maître de Conférences, CentraleSupélec, Université Paris-Saclay (France)
Nicolás GUARÍN ZAPATA, Examinateur, Assistant Professor, Universidad EAFIT (Colombia)
César Augusto HIDALGO MONTOYA, Examinateur, Professor, Universidad de Medellín (Colombia)