Articles | Volume 23, issue 9
https://doi.org/10.5194/nhess-23-3147-2023
https://doi.org/10.5194/nhess-23-3147-2023
Research article
 | 
28 Sep 2023
Research article |  | 28 Sep 2023

Lava flow hazard modeling during the 2021 Fagradalsfjall eruption, Iceland: applications of MrLavaLoba

Gro B. M. Pedersen, Melissa A. Pfeffer, Sara Barsotti, Simone Tarquini, Mattia de'Michieli Vitturi, Bergrún A. Óladóttir, and Ragnar Heiðar Þrastarson

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Revised manuscript accepted for NHESS
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Cited articles

Adams, B. M., Bohnhoff, W. J., Dalbey, K. R., Ebeida, M. S., Eddy, J. P., Eldred, M. S., Hooper, R. W., Hough, P. D., Hu, K. T., Jakeman, J. D., Khalil, M., Maupin, K. A., Monschke, J. A., Ridgway, E. M., Rushdi, A. A., Seidl, D. T., Stephens, J. A., Swiler, L. P., and Winokur, J. G.: Dakota, A Multilevel Parallel Object-Oriented Framework for Design Optimization, Parameter Estimation, Uncertainty Quantification, and Sensitivity Analysis: Version 6.15 User's Manual, Sandia Technical Report SAND2020-12495, Sandia National Laboratories, 2021. 
Andrésdóttir, Þ. B.: Eldfjallavá á Reykjanesi, Thesis, University of Iceland, Háskólaprent, Reykjavík, 2016. 
Andrésdóttir, Þ. B.: Volcanic hazard and risk assessment at Reykjanes, vulnerability of infrastructure, Thesis, University of Iceland, Háskólaprent, Reykjavík, 2018. 
Barberi, F. and Villari, L.: Volcano monitoring and civil protection problems during the 1991–1993 Etna eruption, Acta Vulcanol., 4, 157–165, 1994. 
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Short summary
The lava eruption at Fagradalsfjall in 2021 was the most visited eruption in Iceland, with thousands of visitors per day for 6 months. To address the short- and long-term danger of lava inundating infrastructure and hiking paths, we used the lava flow model MrLavaLoba before and during the eruption. These simulations helped communicate lava hazards to stakeholders and can be used as a case study for lava hazard assessment for future eruptions in the area, which are likely to be more destructive.
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