Articles | Volume 24, issue 5
https://doi.org/10.5194/nhess-24-1579-2024
https://doi.org/10.5194/nhess-24-1579-2024
Research article
 | 
06 May 2024
Research article |  | 06 May 2024

Assessing locations susceptible to shallow landslide initiation during prolonged intense rainfall in the Lares, Utuado, and Naranjito municipalities of Puerto Rico

Rex L. Baum, Dianne L. Brien, Mark E. Reid, William H. Schulz, and Matthew J. Tello

Data sets

Engineering soil classification and geotechnical measurements in Lares, Naranjito, and Utuado, Puerto Rico Rex L. Baum and A. C. Lewis https://doi.org/10.5066/P9UXTQ4B

Model input and output data covering Lares Municipio, Utuado Municipio, and Naranjito Municipio, Puerto Rico, for landslide initiation susceptibility assessment after Hurricane Maria Rex L. Baum et al. https://doi.org/10.5066/P9C1U0LP

Field observations of landslides and related materials following Hurricane Maria, Puerto Rico W. H. Schulz, E. K. Jensen, C. R. Cerovski-Darriau, R. L. Baum, M. A. Thomas, and J. A. Coe https://doi.org/10.5066/P9T9KZ6T

Map of slope-failure locations in Puerto Rico after Hurricane María K. S. Hughes et al. https://doi.org/10.5066/P9BVMD74

Map data showing concentration of landslides caused by hurricane María in Puerto Rico E. K. Bessette-Kirton et al. https://doi.org/10.5066/F7JD4VRF

Map data from landslides triggered by Hurricane María 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 María 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 María in four 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 María 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

Slabs3D - A Fortran 95 program for analyzing potential shallow landslides in a digital landscape Rex L. Baum https://doi.org/10.5066/P9G4I8IU

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

Serial and parallel versions of the Transient Rainfall Infiltration and Grid-Based Regional Slope-Stability Model (TRIGRS, version 2.1) M. Alvioli and Rex L. Baum https://doi.org/10.5066/F7M044QS

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Short summary
We mapped potential for heavy rainfall to cause landslides in part of the central mountains of Puerto Rico using new tools for estimating soil depth and quasi-3D slope stability. Potential ground-failure locations correlate well with the spatial density of landslides from Hurricane Maria. The smooth boundaries of the very high and high ground-failure susceptibility zones enclose 75 % and 90 %, respectively, of observed landslides. The maps can help mitigate ground-failure hazards.
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