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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.
Complete Metadata
| @id | http://datainventory.doi.gov/id/dataset/023253c0a9ed840ee1de0ba04c9fb6d0 |
|---|---|
| bureauCode |
[ "010:12" ] |
| identifier | USGS:5b046c6ce4b0d8682b96353a |
| spatial | -124.71,21.69,-99.48,49.0 |
| theme |
[ "geospatial" ] |
