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Panel review of Ground Motion Characterization Model in 2023 NSHM

December 11, 2023

The 2023 National Seismic Hazard Model (NSHM; Petersen et al., 2023) has two major components – a seismic source characterization (SSC) model and a ground motion characterization (GMC) model. The US Geological Survey (USGS) established separate panels to review and provide input on these two models. Both panels are advisory, meaning that they provide input on technical issues for consideration by the USGS NSHM team, but they do not have decision making authority. Here, we report on the activities and recommendations of the Ground Motion Characterization Panel, made up of the authors of this review. Final modeling decisions are presented in separate USGS documents, including Petersen et al., (2023) and Moschetti et al., (2023). Where modeling decisions depart from our recommendations, the rationale is explained in those publications.

Publication Year 2023
Title Panel review of Ground Motion Characterization Model in 2023 NSHM
Authors Jonathan P. Stewart, Norman A. Abrahamson, Gail M. Atkinson, John G. Anderson, Kenneth W. Campbell, Chris H. Cramer, Michael Kolaj, Grace Alexandra Parker
Publication Type Report
Publication Subtype Other Government Series
Index ID 70250482
Record Source USGS Publications Warehouse
USGS Organization Earthquake Science Center