Pacific Northwest Liquefaction Hazard Simulations

This dataset contains a suite of 85 regional scenario earthquake simulations across Washington and Oregon for which the liquefaction hazard was assessed geospatially (i.e., at 90-meter resolution for the affected region) using the geospatial liquefaction model of Sanger et al. (2025). This geospatial liquefaction model is designed to predict manifestation of earthquake-induced soil liquefaction at the ground surface through geospatial surrogate models of three standard-of-practice geotechnical models: the liquefaction potential index (LPI); a modified LPI, termed LPIISH; and the liquefaction severity number (LSN).

The results of each scenario earthquake are organized in a folder, which includes maps of the results, reference data, and a corresponding ArcGIS Map package. Additional information about the scenario earthquakes and file delivery structure are provided in the README file of this project. Interested users are referred to the journal publication provided in the project description for details regarding model development, performance, and use:

Sanger, M.D., Geyin, M., & Maurer, B.W. (2025). Mechanics-informed machine learning for geospatial modeling of soil liquefaction: global and national surrogate models for simulation and near-real-time response. ASCE Journal of Geotechnical and Geoenvironmental Engineering. In Press.