Components of the USGS National Crustal Model (ver. 2.0, September 2025)
Seismic hazard assessments depend on an accurate prediction of ground motion, which in turn depends on a base knowledge of three-dimensional variations in density, seismic velocity, and attenuation. The datasets here are components of a National Crustal Model that couples geologic characteristics and geophysical parameters using a physical theoretical foundation combined with measured data for calibration. The model is intended to be internally consistent and seamless on a national scale; care is also taken to maximize consistency with existing regional models. An initial version of the model components are defined for the western U.S. on a 1-km grid. While the current focus of this effort is on improving estimates of site response in seismic hazard analysis, this model can benefit other fields of research.
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Complete Metadata
| accessLevel | public |
|---|---|
| bureauCode |
[
"010:12"
]
|
| contactPoint |
{
"fn": "Oliver S. Boyd",
"@type": "vcard:Contact",
"hasEmail": "mailto:olboyd@usgs.gov"
}
|
| description | Seismic hazard assessments depend on an accurate prediction of ground motion, which in turn depends on a base knowledge of three-dimensional variations in density, seismic velocity, and attenuation. The datasets here are components of a National Crustal Model that couples geologic characteristics and geophysical parameters using a physical theoretical foundation combined with measured data for calibration. The model is intended to be internally consistent and seamless on a national scale; care is also taken to maximize consistency with existing regional models. An initial version of the model components are defined for the western U.S. on a 1-km grid. While the current focus of this effort is on improving estimates of site response in seismic hazard analysis, this model can benefit other fields of research. |
| distribution |
[
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"accessURL": "https://doi.org/10.5066/P9T96Q67",
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"title": "Original Metadata",
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|
| identifier | http://datainventory.doi.gov/id/dataset/USGS_5b046c6ce4b0d8682b96353a |
| keyword |
[
"Arizona",
"CGGSC",
"California",
"Colorado",
"Earthquake Hazards",
"GHSC",
"Geologic Hazards Science Center",
"Geology, Geophysics, and Geochemistry Science Center",
"Idaho",
"Kansas",
"Montana",
"National Crustal Model",
"Nebraska",
"Nevada",
"New Mexico",
"North Dakota",
"Oklahoma",
"Oregon",
"South Dakota",
"Texas",
"USGS:5b046c6ce4b0d8682b96353a",
"Washington",
"Western United States",
"Wyoming",
"basement",
"basins",
"depth to basement",
"earthquake response",
"earthquakes",
"geoscientificInformation",
"gravity",
"hazards",
"regional study",
"sediments",
"three-dimensional mapping",
"unconsolidated sediments"
]
|
| modified | 2025-09-03T00:00:00Z |
| publisher |
{
"name": "U.S. Geological Survey",
"@type": "org:Organization"
}
|
| spatial | -124.7100, 21.6900, -99.4800, 49.0000 |
| theme |
[
"geospatial"
]
|
| title | Components of the USGS National Crustal Model (ver. 2.0, September 2025) |
