Articles | Volume 25, issue 3
https://doi.org/10.5194/nhess-25-1229-2025
https://doi.org/10.5194/nhess-25-1229-2025
Research article
 | 
31 Mar 2025
Research article |  | 31 Mar 2025

Topographic controls on landslide mobility: modeling hurricane-induced landslide runout and debris-flow inundation in Puerto Rico

Dianne L. Brien, Mark E. Reid, Collin Cronkite-Ratcliff, and Jonathan P. Perkins

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Cited articles

Barnhart, K. R., Jones, R. P., George, D. L., McArdell, B. W., Rengers, F. K., Staley, D. M., and Kean, J. W.: Multi-model comparison of computed debris flow runout for the 9 January 2018 Montecito, California post-wildfire event, J. Geophys. Res.-Earth Surf., 126, e2021JF006245, https://doi.org/10.1029/2021JF006245, 2021. 
Baum, R. L.: Slabs3D – A Fortran 95 program for analyzing potential shallow landslides in a digital landscape, U.S. Geological Survey software release, https://doi.org/10.5066/P9G4I8IU, 2023. 
Baum, R. L., Savage, W. Z., and Godt, J. W.: TRIGRS – A Fortran program for transient rainfall infiltration and grid-based regional slope-stability analysis, version 2.0, U.S. Geological Survey Open-File Report, 2008-1159, 75 p., https://doi.org/10.3133/ofr20081159, 2008. 
Baum, R. L., Cerovski-Darriau, C., Schulz, W. H., Bessette-Kirton, E. K., Coe, J. A., Smith, J. B., and Smoczyk, G. M.: Variability of Hurricane Maria debris-flow source areas in Puerto Rico – Implications for hazard assessment, American Geophysical Union Fall Meeting abstract #NH14A-02, https://agu.confex.com/agu/fm18/meetingapp.cgi/Paper/412740 (last access: 10 August 2023), 2018. 
Baum, R. L., Bedinger, E. C., and Tello, M. J.: REGOLITH – A Fortran 95 program for estimating soil mantle thickness in a digital landscape for landslide and debris-flow hazard assessment, U.S. Geological Survey software release, https://doi.org/10.5066/P9U2RDWJ, 2021. 
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Short summary
Landslide runout zones are the areas downslope or downstream of landslide initiation. People often live and work in these areas, leading to property damage and deaths. Landslide runout may occur on hillslopes or in channels, requiring different modeling approaches. We develop methods to identify potential runout zones and apply these methods to identify susceptible areas for three municipalities in Puerto Rico.
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