Articles | Volume 26, issue 5
https://doi.org/10.5194/nhess-26-2437-2026
https://doi.org/10.5194/nhess-26-2437-2026
Research article
 | 
01 Jun 2026
Research article |  | 01 Jun 2026

A single framework for assessing flash flood and landslide susceptibility: an application to the Mediterranean Liguria region, Italy

Alessia Riveros, Chamidu Gunaratne, Mario Martinelli, and Frederiek Christianne Sperna Weiland

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Cited articles

Adnan, M. S. G., White, C., Perugini, E., Jensen, E. H., Barnie, T., Castillo, N., Arosio, M., Tubaldi, E., Roberts, M. J., Gaetani, M., Cha, Y., Weiland, F. S., Martinelli, M., and Douglas, J.: A comprehensive framework for quantifying diverse multi-hazard interactions, ESS Open Archive, https://doi.org/10.22541/essoar.174526074.45009802/v2, 8 May 2025. 
Agenzia regionale per la protezione dell'ambiente ligure: Rapporti di eventi significativi, Agenzia regionale per la protezione dell'ambiente ligure, Genova, Agenzia regionale per la protezione dell’ambiente ligure (ARPAL) https://www.arpal.liguria.it/tematiche/meteo/pubblicazioni-bis/rapporti-di-eventi-significativi.html (last access: 26 May 2025), 2024. 
Agrillo, G. and Bonati, V.: Atlante climatico della Liguria, ARPAL, https://www.arpal.liguria.it/contenuti_statici/clima/atlante/Atlante_climatico_della_Liguria.pdf (last access: 26 May 2025), 2013. 
Ahmed, M., Tanyas, H., Huser, R., Dahal, A., Titti, G., Borgatti, L., Francioni, M., and Lombardo, L.: Dynamic rainfall-induced landslide susceptibility: A step towards a unified forecasting system, Int. J. Appl. Earth Obs., 125, 103593, https://doi.org/10.1016/j.jag.2023.103593, 2023. 
Alarifi, S. S., Abdelkareem, M., Abdalla, F., and Alotaibi, M.: Flash Flood Hazard Mapping Using Remote Sensing and GIS Techniques in Southwestern Saudi Arabia, Sustainability, 14, 14145, https://doi.org/10.3390/su142114145, 2022. 
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Short summary
Flash floods and landslides have caused severe economic damages and loss of life, especially in mountainous regions e.g. Liguria. We created susceptibility maps to both hazards based on past recorded events and open-data such as slopes and altitude. We found a similar high predisposition to both hazards along the coast. Outside the coastal area, river valleys and urban areas (or upper river courses) exhibited high susceptibility only to flash floods (or landslides).
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