Airborne Magnetic and Radiometric Survey over Puerto Rico and the Surrounding Islands and Shelf, 2023-2024
This data release provides digital flight-line and gridded data for a high-resolution airborne magnetic and radiometric survey over Puerto Rico, the islands of Vieques and Culebra, and the surrounding shelf. The survey was acquired through funding from the USGS Earth Mapping Resource Initiative (Earth MRI), the USGS Coastal and Marine Resources and Hazards Program, and the USGS Earthquake Hazards Program with goals of to improve our understanding of the fundamental geologic framework of the region with applications to evaluating natural resources and geologic hazards.
Data for this survey were acquired and processed by Terraquest under contract to Dewberry and the USGS. The survey was flown in two periods, from March 2023 to May 2023 and December 2024 to March 2025 using a fixed-wing airplane. A total of 70,031 linear kilometers of data were collected. Pre-planned traverse flight lines were flown in an N-S direction with 250-m line spacing and E-W tie-lines with 2500-m line spacing except in two areas over deeper water, where the traverse flight lines were flown with a 500-m line spacing. The nominal flight height was 120 meters (m) above ground, with areas having higher population densities flown at a nominal height of 330 m above ground for safety reasons. The area over El Yunque National Forest was flown with a nominal height of 330 m so not to disturb wildlife below. Following acquisition, Terraquest also performed post-processing of the data and delivered the final databases, grids, and images. Details regarding the flights and data processing are described in the contractor report provided in this release.
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Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | public |
| bureauCode |
[ "010:12" ] |
| contactPoint |
{ "fn": "Anjana K. Shah", "@type": "vcard:Contact", "hasEmail": "mailto:ashah@usgs.gov" } |
| description | This data release provides digital flight-line and gridded data for a high-resolution airborne magnetic and radiometric survey over Puerto Rico, the islands of Vieques and Culebra, and the surrounding shelf. The survey was acquired through funding from the USGS Earth Mapping Resource Initiative (Earth MRI), the USGS Coastal and Marine Resources and Hazards Program, and the USGS Earthquake Hazards Program with goals of to improve our understanding of the fundamental geologic framework of the region with applications to evaluating natural resources and geologic hazards. Data for this survey were acquired and processed by Terraquest under contract to Dewberry and the USGS. The survey was flown in two periods, from March 2023 to May 2023 and December 2024 to March 2025 using a fixed-wing airplane. A total of 70,031 linear kilometers of data were collected. Pre-planned traverse flight lines were flown in an N-S direction with 250-m line spacing and E-W tie-lines with 2500-m line spacing except in two areas over deeper water, where the traverse flight lines were flown with a 500-m line spacing. The nominal flight height was 120 meters (m) above ground, with areas having higher population densities flown at a nominal height of 330 m above ground for safety reasons. The area over El Yunque National Forest was flown with a nominal height of 330 m so not to disturb wildlife below. Following acquisition, Terraquest also performed post-processing of the data and delivered the final databases, grids, and images. Details regarding the flights and data processing are described in the contractor report provided in this release. |
| distribution |
[ { "@type": "dcat:Distribution", "title": "Digital Data", "format": "XML", "accessURL": "https://doi.org/10.5066/P13XHP2X", "mediaType": "application/http", "description": "Landing page for access to the data" }, { "@type": "dcat:Distribution", "title": "Original Metadata", "format": "XML", "mediaType": "text/xml", "description": "The metadata original format", "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.68475b2ad4be024da9d8747d.xml" } ] |
| identifier | http://datainventory.doi.gov/id/dataset/USGS_68475b2ad4be024da9d8747d |
| keyword |
[ "Adjuntas Municipality", "Aeromagnetic survey", "Aguada Municipality", "Aguadilla Municipality", "Aguas Buenas Municipality", "Aibonito Municipality", "Airborne geophysical survey", "Anasco Municipality", "Arecibo Municipality", "Arroyo Municipality", "Association of State Geologists", "Barceloneta Municipality", "Barranquitas Municipality", "Bayamon Municipality", "Cabo Rojo Municipality", "Caguas Municipality", "Camuy Municipality", "Canovanas Municipality", "Carolina Municipality", "Catano Municipality", "Cayey Municipality", "Ceiba Municipality", "Ciales Municipality", "Cidra Municipality", "Coamo Municipality", "Comerio Municipality", "Corozal Municipality", "Culebra Municipality", "Dorado Municipality", "Earth Mapping Resources Initiative", "EarthMRI", "Economic Geology", "Fajardo Municipality", "Florida Municipality", "GGGSC", "Geology, Geophysics, and Geochemistry Science Center", "Geophysics", "Geospatial datasets", "Guanica Municipality", "Guayama Municipality", "Guayanilla Municipality", "Guaynabo Municipality", "Gurabo Municipality", "Hatillo Municipality", "Hormigueros Municipality", "Humacao Municipality", "Isabela Municipality", "Jayuya Municipality", "Juana Diaz Municipality", "Juncos Municipality", "Lajas Municipality", "Lares Municipality", "Las Marias Municipality", "Las Piedras Municipality", "Loiza Municipality", "Luquillo Municipality", "MRP", "Magnetic field (earth)", "Manati Municipality", "Maricao Municipality", "Maunabo Municipality", "Mayaguez Municipality", "Mineral Resources", "Mineral Resources Program", "Moca Municipality", "Morovis Municipality", "Naguabo Municipality", "Naranjito Municipality", "National Cooperative Geologic Mapping Program", "Orocovis Municipality", "Patillas Municipality", "Penuelas Municipality", "Ponce Municipality", "Potassium", "Puerto Rico", "Quebradillas Municipality", "Rincon Municipality", "Rio Grande Municipality", "Sabana Grande Municipality", "Salinas Municipality", "San German Municipality", "San Juan Municipality", "San Lorenzo Municipality", "San Sebastian Municipality", "Santa Isabel Municipality", "Sedimentology", "Structural Geology", "Thorium", "Toa Alta Municipality", "Toa Baja Municipality", "Trujillo Alto Municipality", "U.S. Geological Survey", "USA", "USGS", "USGS:68475b2ad4be024da9d8747d", "United States", "United States of America", "Uranium", "Utuado Municipality", "Vega Alta Municipality", "Vega Baja Municipality", "Vieques Municipality", "Villalba Municipality", "Yabucoa Municipality", "Yauco Municipality", "geoscientificInformation" ] |
| modified | 2026-01-07T00:00:00Z |
| publisher |
{ "name": "U.S. Geological Survey", "@type": "org:Organization" } |
| spatial | 67.446793, 17.780757, 66.099417, 18.594723 |
| theme |
[ "geospatial" ] |
| title | Airborne Magnetic and Radiometric Survey over Puerto Rico and the Surrounding Islands and Shelf, 2023-2024 |
