Geodetic deformation model results and corrections for use in U.S. National Seismic Hazard Model 2023

This page houses model results used in the U.S. National Seismic Hazard Model, 2023. We include results from four geodetic deformation models (Pollitz, Zeng, Shen, Evans), post-seismic relaxation ("ghost transient") calculation (Hearn), and creep calculation (Johnson/Murray). Geologic deformation model results are available in Hatem et al. (2022a).

An overview of all model procedures and comparisons is available at:
Pollitz, F.F., E. L. Evans, E. H. Field, A. E. Hatem, E. H. Hearn, K. M. Johnson, J. R. Murray, P. M. Powers, Z.-K. Shen, C. Wespestad, and Y. Zeng (2022). Western U.S. Deformation models for the 2023 update to the U.S. National Seismic Hazard Model, Seismol. Res. Lett. doi: 10.1785/0220220143

Individual, model and method specific manuscripts are:
Evans, E. L. (2022). A dense block model representing western continental United States deformation for the 2023 update to the National Seismic Hazard Model, Seismol. Res. Lett. doi: 10.1785/0220220141

Hearn, E. H. (2022). "Ghost transient" corrections to the southern California GPS velocity field from San Andreas Fault seismic cycle models, Seismol. Res. Lett. doi: 10.1785/0220220156

Johnson, K. M., J. R. Murray, and C. Wespestad, Creep rate models for the 2023 US National Seismic Hazard Model: Physically constrained inversions for the distribution of creep on California faults, Seismol. Res. Lett. doi: 10.1785/0220220186

Pollitz, F.F. (2022). Viscoelastic fault-based model of crustal deformation for the 2023 update to the US National Seismic Hazard Model, Seismol. Res. Lett. doi: 10.1785/0220220137

Shen, Z.-K. and P. Bird (2022). Neokinema deformation model for the 2023 update to the US National Seismic Hazard Model, Seismol. Res. Lett. doi: 10.1785/0220220179

Zeng, Y. (2022). Fault-Based Crustal Deformation Model with Deep Driven Dislocation Sources for the 2023 Update to the US National Seismic Hazard Model, Seismol. Res. Lett. doi: 10.1785/0220220209

Geologic deformation model results available at:
Hatem, A.E., Reitman, N.G., Briggs, R.W., Gold, R.D., Thompson Jobe, J.A., and Burgette, R.J., 2022a, Western U.S. geologic deformation model for use in the U.S. National Seismic Hazard Model 2023, version 1.0: U.S. Geological Survey data release, http://doi.org/10.5066/P9W63WOZ

The deformation model results on this page rely on the following input data:
Hatem, A.E., Collett, C.M., Briggs, R.W., Gold, R.D., Angster, S.J., Powers, P.M., Field, E.H., Anderson, M., Ben-Horin, J.Y., Dawson, T., DeLong, S., DuRoss, C., Thompson Jobe, J., Kleber, E., Knudsen, K.L., Koehler, R., Koning, D., Lifton, Z., Madin, I., Mauch, J., Morgan, M., Pearthree, P., Pollitz, F., Scharer, K., Sherrod, B., Stickney, M., Wittke, S., and Zachariasen, J., 2022b, Earthquake geology inputs for the U.S. National Seismic Hazard Model (NSHM) 2023 (western US) (ver. 2.0, February 2022): U.S. Geological Survey data release, https://doi.org/10.5066/P9AU713N.

Johnson, K., Murray, J.R., and Wespestad, C.E., 2022, Creep rate models for California faults in the 2023 US National Seismic Hazard Model: U.S. Geological Survey data release, https://doi.org/10.5066/P94YGVWQ.

Zeng, Y., 2022, 2023 NSHM western United States GPS velocities: U.S. Geological Survey data release, https://doi.org/10.5066/P9MXY6RC.