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

Data sets

Hurricane Maria's Most Mobile (MMM) landslides in nine study areas in the Lares, Naranjito and Utuado Municipalities, Puerto Rico D. L. Brien et al. https://doi.org/10.5066/P9NJ8MSP

2018 USGS Puerto Rico -- Virgin Islands LiDAR U.S. Geological Survey https://apps.nationalmap.gov/lidar-explorer

Map data from landslides triggered by Hurricane Maria in four study areas of Puerto Rico E. K. Bessette-Kirton et al. https://doi.org/10.5066/P9OW4SLX

Map data from landslides triggered by Hurricane Maria in a section of Naranjito, Puerto Rico K. W. Baxstrom et al. https://doi.org/10.5066/P9GBGA4I

Map data from landslides triggered by Hurricane Maria in the greater karst region of northwest Puerto Rico K. W. Baxstrom et al. https://doi.org/10.5066/P9YYU7W1

Map data from landslides triggered by Hurricane Maria in three study areas in the Lares Municipality, Puerto Rico M. M. Einbund et al. https://doi.org/10.5066/P9EASZZ7

Map data from landslides triggered by Hurricane Maria in four study areas in the Utuado Municipality, Puerto Rico M. M. Einbund et al. https://doi.org/10.5066/P9ZNUR1P

Model code and software

Grfin Tools - Software package and runtime documentation for users, version 1.0 C. Cronkite-Ratcliff et al. https://doi.org/10.5066/P9NVKFE2

Grfin Tools – User guide and methods for modeling landslide runout and debris-flow growth and inundation M. E. Reid et al. https://doi.org/10.3133/tm14-A3

REGOLITH -- A Fortran 95 program for estimating soil mantle thickness in a digital landscape for landslide and debris-flow hazard assessment R. L. Baum et al. https://doi.org/10.5066/P9U2RDWJ

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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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