Articles | Volume 18, issue 8
Nat. Hazards Earth Syst. Sci., 18, 2111–2125, 2018
Nat. Hazards Earth Syst. Sci., 18, 2111–2125, 2018

Research article 08 Aug 2018

Research article | 08 Aug 2018

Development of fragility curves for road bridges exposed to volcanic lahars

Joaquín Dagá et al.

Related subject area

Risk Assessment, Mitigation and Adaptation Strategies, Socioeconomic and Management Aspects
Comparing an insurer's perspective on building damages with modelled damages from pan-European winter windstorm event sets: a case study from Zurich, Switzerland
Christoph Welker, Thomas Röösli, and David N. Bresch
Nat. Hazards Earth Syst. Sci., 21, 279–299,,, 2021
Short summary
Probabilistic characterisation of coastal storm-induced risks using Bayesian networks
Marc Sanuy and Jose A. Jiménez
Nat. Hazards Earth Syst. Sci., 21, 219–238,,, 2021
A glimpse into the future of exposure and vulnerabilities in cities? Modelling of residential location choice of urban population with random forest
Sebastian Scheuer, Dagmar Haase, Annegret Haase, Manuel Wolff, and Thilo Wellmann
Nat. Hazards Earth Syst. Sci., 21, 203–217,,, 2021
Short summary
Invited perspectives: Building sustainable and resilient communities – recommended actions for natural hazard scientists
Joel C. Gill, Faith E. Taylor, Melanie J. Duncan, Solmaz Mohadjer, Mirianna Budimir, Hassan Mdala, and Vera Bukachi
Nat. Hazards Earth Syst. Sci., 21, 187–202,,, 2021
Short summary
Design of parametric risk transfer solutions for volcanic eruptions: an application to Japanese volcanoes
Delioma Oramas-Dorta, Giulio Tirabassi, Guillermo Franco, and Christina Magill
Nat. Hazards Earth Syst. Sci., 21, 99–113,,, 2021
Short summary

Cited articles

AASHTO: American Association of State Highway and Transportation Officials: LRFD bridge design specifications, AASHTO, Washington D.C., USA, 2012. 
Arneson, L., Zevenbergen, L., Lagasse, P., and Clopper, P.: Evaluating scour at bridges: Hydraulic Engineering Circular No. 18, Federal Highway Administration Publications, Washington D.C., USA, 2012. 
Blong, R. J.: Volcanic hazards: a sourcebook on the effects of eruptions, Academic Press, Sidney, Australia, 1984. 
Bono, L.: Modelación de los lahares del Volcán Villarrica en el sector de Pucón, Región de la Araucanía, Memoria de Título, Universidad de Chile, Santiago, Chile, 2014. 
Breusers, H., Nicollet, G., and Shen, H.: Local scour around cylindrical piers, J. Hydraul. Res., 15, 211–252, 1977. 
Short summary
One of the main volcanic processes affecting road bridges are lahars, which are flows of water and volcanic material running down the slopes of a volcano. In this paper, bridge failure models due to lahars are proposed and, based on these, fragility curves are developed. Fragility curves are parameterized by maximum likelihood estimation, assuming a cumulative log-normal distribution. Bridge failure models are empirically evaluated using data of 15 bridges that were affected by lahars.
Final-revised paper