Report: viii, 91 pages 2 Sheets: 49.11 x 33.86 inches Application Sites Companion Files: Data Release Map depicting susceptibility to landslides triggered by intense rainfall, Puerto Rico Hughes, K.S., and Schulz, W.H., 2020, Map depicting susceptibility to landslides triggered by intense rainfall, Puerto Rico: U.S. Additionally, the map does not portray locations where landslide material may travel after mobilization, and which may be at extreme risk nor does it necessarily portray where landslides may occur during earthquakes or mass wasting triggered by prolonged, relatively low-intensity rainfall. The susceptibility map is intended to assist in planning future development, mitigation measures, and post-event emergency response however, it is not a substitute for site-specific, slope-stability assessments performed by licensed geologists and engineers. The Extremely High susceptibility classification represents the most vulnerable 1 percent of the island, whereas Very High, High, Moderate, and Low classifications cover 9, 20, 30, and 40 percent of the island, respectively. The model output raster pixel values were binned into 100 equal-area quantiles and then classified into Low, Moderate, High, Very High, and Extremely High classes of susceptibility. The final data product (plate 1) is a statistically viable representation of where landslides are likely to initiate during or soon after intense rainfall, with a robust receiver operating characteristic area-under-curve value of 0.87. Datasets utilized in the model included a complete-island landslide inventory created from imagery obtained after Hurricanes Irma and MarГa impacted the island during September 2017, slope inclination, land-surface curvature, soil type, geologic terrane, mean annual precipitation, land use, soil moisture, and distance to roadways and streams. In this study, a high-resolution (5 meters), high-intensity rainfall-induced landslide susceptibility model was produced using the frequency-ratio method. Puerto RicoвЂ™s geographic position and rugged topography render millions of residents vulnerable to widespread landslide events. One of the main triggers of mass wasting on the island is the high-intensity rainfall that is associated with tropical atmospheric systems. Centuries of agricultural and urban modification of the landscape have perturbed many already unstable hillsides on the tropical island. Landslides in Puerto Rico range from nuisances to deadly events. USGS data release- Geographic Information System Layer of a Map Depicting Susceptibility to Landslides Triggered by Intense Rainfall, Puerto RicoДirector, Geologic Hazards Science Center.USGS data release- Results from frequency-ratio analyses of soil classification and land use related to landslide locations in Puerto Rico following Hurricane Maria.Mapa de Susceptibilidad a Deslizamientos de Tierra Desencadenados por PrecipitaciГіn Intensa en Puerto Rico, georreferenciado (Geotiff).Map Depicting Susceptibility to Landslides Triggered by Intense Rainfall, Puerto Rico, Geo-referenced (Geotiff).Landslide susceptibility map as a Google Earth file.Mapa de susceptibilidad a deslizamientos de tierra visor web interactivo.Landslide susceptibility map interactive web viewer.GuГa sobre deslizamientos de tierra para residentes de Puerto Rico.Landslide Guide for Residents of Puerto Rico.Mapa de Susceptibilidad a Deslizamientos de Tierra Desencadenados por PrecipitaciГіn Intensa en Puerto Rico, georreferenciado.Mapa de Susceptibilidad a Deslizamientos de Tierra Desencadenados por PrecipitaciГіn Intensa en Puerto Rico.Map Depicting Susceptibility to Landslides Triggered by Intense Rainfall, Puerto Rico, Geo-referenced.Map Depicting Susceptibility to Landslides Triggered by Intense Rainfall, Puerto Rico.

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