Components of the USGS National Crustal Model (ver. 2.0, September 2025)
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.
Resources
| Name |
Format |
Description |
Link |
|
55 |
The metadata original format |
https://data.usgs.gov/datacatalog/metadata/USGS.5b046c6ce4b0d8682b96353a.xml |
|
55 |
Landing page for access to the data |
https://doi.org/10.5066/P9T96Q67 |
Tags
- western-united-states
- montana
- cggsc
- earthquake-hazards
- colorado
- earthquakes
- geology-geophysics-and-geochemistry-science-center
- idaho
- wyoming
- south-dakota
- ghsc
- three-dimensional-mapping
- geologic-hazards-science-center
- basins
- gravity
- kansas
- texas
- unconsolidated-sediments
- geoscientificinformation
- depth-to-basement
- california
- usgs-5b046c6ce4b0d8682b96353a
- basement
- arizona
- washington
- national-crustal-model
- sediments
- earthquake-response
- hazards
- oklahoma
- north-dakota
- new-mexico
- oregon
- nevada
- nebraska
- regional-study