The National Seismic Hazard Model Project prepares updated maps, data, tools, and documentation for the 50 states and territories of the United States. Archived project activities and resources are available.
NSHM Region | Publication Date | Archive |
| 50-State | 2023 | Project Plan |
| 50-State | 2023 | Project Status Update |
| American Samoa | 2012 | Project Status Update |
| Guam & CNMI | 2012 | Project Status Update |
| Puerto Rico & USVI | 2003 | Project Status Update |
| Overseas Studies: Afghanistan, Haiti, India, South America, & SE Asia | 2004, 2007, & 2010 | Project Status Update |
2025 USGS National Seismic Hazard Model for Puerto Rico and the U.S. Virgin Islands: Overview of model and hazard results 2025 USGS National Seismic Hazard Model for Puerto Rico and the U.S. Virgin Islands: Overview of model and hazard results
The U.S. Geological Survey recently updated the National Seismic Hazard Model (NSHM) for Puerto Rico and the U.S. Virgin Islands (PRVI). The first version of the PRVI NSHM was released in 2003, and therefore this 2025 update includes over 20 years of new geologic, geophysical, and engineering data, methods, and models. Updates follow similar efforts performed in the recent 2023 50-state...
Authors
Allison M. Shumway, Kevin Ross Milner, Peter M. Powers, Morgan P. Moschetti, Jason M. Altekruse, Julie A. Herrick, Andrea L. Llenos, Kyle B. Withers, Edward H. Field, Brad T. Aagaard, Richard W. Briggs, Alexandra Elise Hatem, Kirstie Lafon Haynie, Andrew J. Michael, Jessica A. Thompson Jobe, Kishor S. Jaiswal, Brandon S. Clayton, Nico Luco, Mark D. Petersen, Sanaz Rezaeian, Thomas L. Pratt, Yuehua Zeng
Filter Total Items: 15
Seismic hazard in Hawaii: High rate of large earthquakes and probabilistics ground-motion maps Seismic hazard in Hawaii: High rate of large earthquakes and probabilistics ground-motion maps
The seismic hazard and earthquake occurrence rates in Hawaii are locally as high as that near the most hazardous faults elsewhere in the United States. We have generated maps of peak ground acceleration (PGA) and spectral acceleration (SA) (at 0.2, 0.3 and 1.0 sec, 5% critical damping) at 2% and 10% exceedance probabilities in 50 years. The highest hazard is on the south side of Hawaii...
Authors
F. W. Klein, A.D. Frankel, C.S. Mueller, R. L. Wesson, P. G. Okubo
Seismic-hazard maps for the conterminous United States Seismic-hazard maps for the conterminous United States
No abstract available.
Authors
Arthur D. Frankel, C. Mueller, T. Barnhard, D. Perkins, E. V. Leyendecker, N. Dickman, S. Hanson, M. Hopper
Hazard maps help save lives and property Hazard maps help save lives and property
No abstract available.
Authors
William M. Brown, David M. Perkins, Edgar V. Leyendecker, Arthur D. Frankel, James W. Hendley, Peter H. Stauffer
USGS Earthquake Hazard Toolbox: nshmp-apps USGS Earthquake Hazard Toolbox: nshmp-apps
NSHM Hazard Tool, a suite of web tools for the NSHMP.
The National Seismic Hazard Model Project prepares updated maps, data, tools, and documentation for the 50 states and territories of the United States. Archived project activities and resources are available.
NSHM Region | Publication Date | Archive |
| 50-State | 2023 | Project Plan |
| 50-State | 2023 | Project Status Update |
| American Samoa | 2012 | Project Status Update |
| Guam & CNMI | 2012 | Project Status Update |
| Puerto Rico & USVI | 2003 | Project Status Update |
| Overseas Studies: Afghanistan, Haiti, India, South America, & SE Asia | 2004, 2007, & 2010 | Project Status Update |
2025 USGS National Seismic Hazard Model for Puerto Rico and the U.S. Virgin Islands: Overview of model and hazard results 2025 USGS National Seismic Hazard Model for Puerto Rico and the U.S. Virgin Islands: Overview of model and hazard results
The U.S. Geological Survey recently updated the National Seismic Hazard Model (NSHM) for Puerto Rico and the U.S. Virgin Islands (PRVI). The first version of the PRVI NSHM was released in 2003, and therefore this 2025 update includes over 20 years of new geologic, geophysical, and engineering data, methods, and models. Updates follow similar efforts performed in the recent 2023 50-state...
Authors
Allison M. Shumway, Kevin Ross Milner, Peter M. Powers, Morgan P. Moschetti, Jason M. Altekruse, Julie A. Herrick, Andrea L. Llenos, Kyle B. Withers, Edward H. Field, Brad T. Aagaard, Richard W. Briggs, Alexandra Elise Hatem, Kirstie Lafon Haynie, Andrew J. Michael, Jessica A. Thompson Jobe, Kishor S. Jaiswal, Brandon S. Clayton, Nico Luco, Mark D. Petersen, Sanaz Rezaeian, Thomas L. Pratt, Yuehua Zeng
Filter Total Items: 15
Seismic hazard in Hawaii: High rate of large earthquakes and probabilistics ground-motion maps Seismic hazard in Hawaii: High rate of large earthquakes and probabilistics ground-motion maps
The seismic hazard and earthquake occurrence rates in Hawaii are locally as high as that near the most hazardous faults elsewhere in the United States. We have generated maps of peak ground acceleration (PGA) and spectral acceleration (SA) (at 0.2, 0.3 and 1.0 sec, 5% critical damping) at 2% and 10% exceedance probabilities in 50 years. The highest hazard is on the south side of Hawaii...
Authors
F. W. Klein, A.D. Frankel, C.S. Mueller, R. L. Wesson, P. G. Okubo
Seismic-hazard maps for the conterminous United States Seismic-hazard maps for the conterminous United States
No abstract available.
Authors
Arthur D. Frankel, C. Mueller, T. Barnhard, D. Perkins, E. V. Leyendecker, N. Dickman, S. Hanson, M. Hopper
Hazard maps help save lives and property Hazard maps help save lives and property
No abstract available.
Authors
William M. Brown, David M. Perkins, Edgar V. Leyendecker, Arthur D. Frankel, James W. Hendley, Peter H. Stauffer
USGS Earthquake Hazard Toolbox: nshmp-apps USGS Earthquake Hazard Toolbox: nshmp-apps
NSHM Hazard Tool, a suite of web tools for the NSHMP.