Map Depicting Susceptibility to Landslides Triggered by Intense Rainfall, Puerto Rico [open pdf - 51MB]
From the Executive Summary: "Puerto Rico is vulnerable to landsliding. This report summarizes creation of a new high-resolution model of rainfall-induced landslide susceptibility for the main island. The main island of Puerto Rico was classified at 5-meter pixel scale into categories of Low, Moderate, High, Very High, or Extremely High susceptibility to landsliding during and soon after intense rainfall, such as is produced during tropical cyclones. The map data can be downloaded as georeferenced files in multiple formats by the public or government agencies and used in a geographic information system platform. The model is intended for use in planning, development, and emergency management. The map highlights areas susceptible to landsliding that may warrant further site-specific evaluation by licensed professionals. This map product highlights an important collaboration between the U.S. Geological Survey and the Department of Geology at the University of Puerto Rico at Mayagüez that materialized after the destructive Hurricanes Irma and María in September 2017. An inventory of more than 70,000 mass wasting sites triggered by Hurricane María represents one of the initial products of this partnership and was an essential dataset in the modeling effort described in the report."
Open-File Report 2020-1022
U.S. Geological Survey: https://www.usgs.gov/