Articles | Volume 25, issue 9
https://doi.org/10.5194/nhess-25-3641-2025
https://doi.org/10.5194/nhess-25-3641-2025
Research article
 | 
26 Sep 2025
Research article |  | 26 Sep 2025

Hillslope torrential hazard cascades in tropical mountains

Maria Isabel Arango-Carmona, Paul Voit, Marcel Hürlimann, Edier Aristizábal, and Oliver Korup

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Cited articles

Amarasinghe, M. P., Kulathilaka, S. A. S., Robert, D. J., Zhou, A., and Jayathissa, H. A. G.: Risk assessment and management of rainfall – induced landslides in tropical regions: a review, Nat. Hazards, 120, https://doi.org/10.1007/s11069-023-06277-3, 2023. 
Arango-Carmona, M. I., Aristizábal, E., and Gómez, F.: Morphometrical analysis of torrential flows-prone catchments in tropical and mountainous terrain of the Colombian Andes by machine learning techniques, Nat. Hazards, 105, https://doi.org/10.1007/s11069-020-04346-5, 2021. 
Aristizábal, E., Arango-Carmona, M. I., and García Lopez, I. K.: Definición y clasificación de las avenidas torrenciales y su impacto en los Andes colombianos, Cuadernos de Geografia: Revista Colombiana de Geografia, 29, 242–258, https://doi.org/10.15446/rcdg.v29n1.72612, 2020. 
ASF DAAC: ALOS PALSAR High Resolution Radiometric Terrain Corrected Product [data set], NASA Alaska Satellite Facility Distributed Active Archive Center, https://doi.org/10.5067/Z97HFCNKR6VA, 2014. 
Bai, H., Feng, W., Yi, X., Fang, H., Wu, Y., Deng, P., Dai, H., and Hu, R.: Group-occurring landslides and debris flows caused by the continuous heavy rainfall in June 2019 in Mibei Village, Longchuan County, Guangdong Province, China, Nat. Hazards, 108, 3181–3201, https://doi.org/10.1007/s11069-021-04819-1, 2021. 
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Short summary
We studied 22 cascading landslide and torrential events in tropical mountains to understand how rainfall, slopes, and soil types interact to trigger them. We found that extreme rainfall alone is not always the cause and long wet periods and sediment type also play a role. Our findings can help improve warning systems and reduce disaster risks in vulnerable regions.
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