Nadine G Reitman, PhD
As an earthquake geologist, I use numerical modeling, field observations, and remote sensing to investigate the earthquake history and behavior of active faults, as well as how earthquake history is recorded in the landscape.
Professional Experience
Research Geologist, USGS, 2020-Present
Geologist, USGS, 2014-2016
Physical Science Technician, Denali National Park, 2010, 2011, 2013
Education and Certifications
PhD, University of Colorado Boulder, 2016-2020
MS, University of Colorado Boulder, 2011-2013
BA, Vassar College, 2006-2010
Science and Products
Filter Total Items: 15
Earthquake geology inputs for the National Seismic Hazard Model (NSHM) 2025 (Puerto Rico and U.S. Virgin Islands), version 1.0 Earthquake geology inputs for the National Seismic Hazard Model (NSHM) 2025 (Puerto Rico and U.S. Virgin Islands), version 1.0
This Data Release contains preliminary versions of three related geologic input databases for the Puerto Rico and U.S. Virgin Islands (PRVI) region (62°–70° W and 16°–21° N) of the United States: 1) A fault sections database (“NSHM2025_FaultSections_PRVI_v1’”), which depicts the geometry of faults capable of hosting independent earthquakes, 2) a fault-zone polygon database ("NSHM2025...
Quaternary fault mapping of the Zapata and Blanca sections of the Sangre de Cristo fault zone from high-resolution 3DEP topography Quaternary fault mapping of the Zapata and Blanca sections of the Sangre de Cristo fault zone from high-resolution 3DEP topography
This data release contains a dataset that depicts fault scarps along the Zapata and Blanca sections of the Sangre de Cristo fault zone located in the San Luis basin of southern Colorado. The Zapata and Blanca sections extend from the Great Sand Dunes National Park and Preserve to the Blanca Peak massif and are differentiated by a sharp change in fault zone orientation from north-south to...
UAV imagery and digital elevation data for the debris slide in Chaos Canyon, 28 June 2022, Rocky Mountain National Park, Colorado. UAV imagery and digital elevation data for the debris slide in Chaos Canyon, 28 June 2022, Rocky Mountain National Park, Colorado.
This dataset contains a point cloud (HalletPeak_PointCloud.las), digital elevation model (HalletPeak_DEM.tif), and orthoimagery (HalletPeak_Ortho.tif) of a debris slide originating on the southeast flank of Hallett Peak and sliding into Upper Chaos Canyon in Rocky Mountain National Park, Colorado, USA. The slide occurred on 28 June 2022, and imagery was obtained on 15 July 2022. These...
Fault Rupture Mapping of the 6 February 2023 Kahramanmaraş, Türkiye, Earthquake Sequence from Satellite Data (ver. 1.1, February 2024) Fault Rupture Mapping of the 6 February 2023 Kahramanmaraş, Türkiye, Earthquake Sequence from Satellite Data (ver. 1.1, February 2024)
This data release contains two datasets that depict fault rupture on the East Anatolian and Çardak faults resulting from the Mw7.8 and Mw7.5 earthquakes in Turkey (Türkiye). It contains two additional datasets that describe satellite imagery coverage and observation gaps. The 6 February 2023 earthquake sequence caused >500 km of combined surface rupture on the primarily left-lateral...
Western U.S. geologic deformation model for use in the U.S. National Seismic Hazard Model 2023, version 1.0 Western U.S. geologic deformation model for use in the U.S. National Seismic Hazard Model 2023, version 1.0
The U.S. National Seismic Hazard Model (NSHM) relies on deformation models to assign slip rates along active faults used in the earthquake rupture forecast. Here, we present the geologic deformation model results in tabular form. We provide model outputs in multiple file formats, as well as the polygons used in analyses throughout the geologic deformation model process.The data presented...
Strike-slip in transtension: Complex crustal architecture of the Warm Springs Valley fault zone, northern Walker Lane Strike-slip in transtension: Complex crustal architecture of the Warm Springs Valley fault zone, northern Walker Lane
This data release contains field data for two P-wave seismic reflection profiles acquired across the Warm Springs Valley fault zone, part of the Northern Walker Lane, NV. The dataset consists of high-resolution seismic reflection field records in .segy format, shot coordinates in .csv format, and observers? logs in .pdf format. The high-resolution seismic profiles are approximately 4 km...
Filter Total Items: 25
Rapid surface rupture mapping from satellite data: The 2023 Kahramanmaraş, Turkey (Türkiye), earthquake sequence Rapid surface rupture mapping from satellite data: The 2023 Kahramanmaraş, Turkey (Türkiye), earthquake sequence
The 6 February 2023 Kahramanmaraş, Turkey (Türkiye), earthquake sequence produced > 500 km of surface rupture primarily on the left‐lateral East Anatolian (~345 km) and Çardak (~175 km) faults. Constraining the length and magnitude of surface displacement on the causative faults is critical for loss estimates, recovery efforts, rapid identification of impacted infrastructure, and fault
Authors
Nadine Reitman, Richard Briggs, William Barnhart, Alexandra Hatem, Jessica Jobe, Christopher DuRoss, Ryan Gold, John Mejstrik, Camille Collett, Richard Koehler, Sinan Akciz
Rapid characterization of the February 2023 Kahramanmaraş, Turkey, earthquake sequence Rapid characterization of the February 2023 Kahramanmaraş, Turkey, earthquake sequence
The 6 February 2023 Mw 7.8 Pazarcık and subsequent Mw 7.5 Elbistan earthquakes generated strong ground shaking that resulted in catastrophic human and economic loss across south‐central Türkiye and northwest Syria. The rapid characterization of the earthquakes, including their location, size, fault geometries, and slip kinematics, is critical to estimate the impact of significant seismic...
Authors
Dara Goldberg, Tuncay Taymaz, Nadine Reitman, Alexandra Hatem, Seda Yolsal-Cevikbilen, William Barnhart, Tahir Irmak, David Wald, Taylan Ocalan, William Yeck, Berkan Ozkan, Jessica Jobe, David Shelly, Eric Thompson, Christopher DuRoss, Paul Earle, Richard Briggs, Harley Benz, Ceyhun Erman, Ali Dogan, Cemali Altuntas
Climatic influence on the expression of strike-slip faulting Climatic influence on the expression of strike-slip faulting
Earthquakes on strike-slip faults are preserved in the geomorphic record by offset landforms that span a range of displacements, from small offsets created in the most recent earthquake (MRE) to large offsets that record cumulative slip from multiple prior events. An exponential decay in the number of large cumulative offsets has been observed on many faults, and a leading hypothesis is...
Authors
Nadine Reitman, Yann Klinger, Richard Briggs, Ryan Gold
Revised earthquake geology inputs for the central and eastern United States and southeast Canada for the 2023 National Seismic Hazard Model Revised earthquake geology inputs for the central and eastern United States and southeast Canada for the 2023 National Seismic Hazard Model
It has been nearly a decade since updates to seismic and fault sources in the central and eastern United States (CEUS) were last assessed for the 2012 Central and Eastern United States Seismic Source Characterization for nuclear facilities (CEUS-SSCn) and 2014 United States Geological Survey National Seismic Hazard Model (NSHM) for the conterminous U.S. In advance of the 2023 NSHM update...
Authors
Jessica Jobe, Alexandra Hatem, Ryan Gold, Christopher DuRoss, Nadine Reitman, Richard Briggs, Camille Collett
Western U.S. geologic deformation model for use in the U.S. National Seismic Hazard Model 2023 Western U.S. geologic deformation model for use in the U.S. National Seismic Hazard Model 2023
Fault geometry and slip rates are key input data for geologic deformation models, which are a fundamental component of probabilistic seismic hazard analyses (PSHAs). However, geologic sources for PSHA have traditionally been limited to faults with field‐based slip rate constraints, which results in underrepresentation of known, but partially characterized, active faults. Here, we...
Authors
Alexandra Hatem, Nadine Reitman, Richard Briggs, Ryan Gold, Jessica Jobe, Reed J. Burgette
How similar was the 1983 Mw 6.9 Borah Peak earthquake rupture to its surface-faulting predecessors along the northern Lost River fault zone (Idaho, USA)? How similar was the 1983 Mw 6.9 Borah Peak earthquake rupture to its surface-faulting predecessors along the northern Lost River fault zone (Idaho, USA)?
We excavated trenches at two paleoseismic sites bounding a trans-basin bedrock ridge (the Willow Creek Hills) along the northern Lost River fault zone to explore the uniqueness of the 1983 Mw 6.9 Borah Peak earthquake compared to its prehistoric predecessors. At the Sheep Creek site on the southernmost Warm Springs section, two earthquakes occurred at 9.8−14.0 ka (95% confidence) and 6.5...
Authors
Christopher DuRoss, Richard Briggs, Ryan Gold, Alexandra Hatem, Austin Elliott, Jaime Delano, Ivan Medina-Cascales, Harrison J. Gray, Shannon Mahan, Sylvia Nicovich, Zachery Lifton, Emily Kleber, Greg McDonald, Adam Hiscock, Mike Bunds, Nadine Reitman
Non-USGS Publications**
Reitman, N.G. and P. Molnar (2021) Strain and velocity across the Great Basin derived from 15-ka fault slip rates: Implications for continuous deformation and seismic hazards in the Walker Lane, California-Nevada, USA. Tectonics. doi: 10.1029/2020TC006389
Reitman, N.G. and P. Molnar (2020) Input parameters, output data, and script to calculate strain and velocity from fault source parameters. [Data set]. Zenodo. https://doi.org/10.5281/zenodo.3895334
Reitman, N.G., K.J. Mueller, G.E. Tucker, R.D. Gold, R.W. Briggs, and K.R. Barnhart. (2019) Numerical model code and input files to run landscape evolution models with strike-slip faulting and measure channel offsets. [Data set]. Zenodo. http://doi.org/10.5281/zenodo.3374026
Litchfield, N.J., K.J. Clark, U.A. Cochran, J. Mountjoy, C. Mueller, R. Morgenstern, K.R. Berryman, B.G. McFadgen, R. Steele, N.G. Reitman, J. Howarth, and P. Villamor. (2020) Unraveling complex coastal deformation mechanisms using marine terrace paleoseismology Puatai Beach and Pakarae River mouth, northern Hikurangi Margin, New Zealand. Bulletin of the Seismological Society of America. doi: 10.1785/0120190208
Reitman, N.G., Ge, S., and Mueller, K. (2014) Groundwater flow and its effect on salt dissolution in Gypsum Canyon watershed, Paradox Basin, southeast Utah, USA. Hydrogeology Journal, doi: 10.1007/s10040-014-1126-0.
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Science and Products
Filter Total Items: 15
Earthquake geology inputs for the National Seismic Hazard Model (NSHM) 2025 (Puerto Rico and U.S. Virgin Islands), version 1.0 Earthquake geology inputs for the National Seismic Hazard Model (NSHM) 2025 (Puerto Rico and U.S. Virgin Islands), version 1.0
This Data Release contains preliminary versions of three related geologic input databases for the Puerto Rico and U.S. Virgin Islands (PRVI) region (62°–70° W and 16°–21° N) of the United States: 1) A fault sections database (“NSHM2025_FaultSections_PRVI_v1’”), which depicts the geometry of faults capable of hosting independent earthquakes, 2) a fault-zone polygon database ("NSHM2025...
Quaternary fault mapping of the Zapata and Blanca sections of the Sangre de Cristo fault zone from high-resolution 3DEP topography Quaternary fault mapping of the Zapata and Blanca sections of the Sangre de Cristo fault zone from high-resolution 3DEP topography
This data release contains a dataset that depicts fault scarps along the Zapata and Blanca sections of the Sangre de Cristo fault zone located in the San Luis basin of southern Colorado. The Zapata and Blanca sections extend from the Great Sand Dunes National Park and Preserve to the Blanca Peak massif and are differentiated by a sharp change in fault zone orientation from north-south to...
UAV imagery and digital elevation data for the debris slide in Chaos Canyon, 28 June 2022, Rocky Mountain National Park, Colorado. UAV imagery and digital elevation data for the debris slide in Chaos Canyon, 28 June 2022, Rocky Mountain National Park, Colorado.
This dataset contains a point cloud (HalletPeak_PointCloud.las), digital elevation model (HalletPeak_DEM.tif), and orthoimagery (HalletPeak_Ortho.tif) of a debris slide originating on the southeast flank of Hallett Peak and sliding into Upper Chaos Canyon in Rocky Mountain National Park, Colorado, USA. The slide occurred on 28 June 2022, and imagery was obtained on 15 July 2022. These...
Fault Rupture Mapping of the 6 February 2023 Kahramanmaraş, Türkiye, Earthquake Sequence from Satellite Data (ver. 1.1, February 2024) Fault Rupture Mapping of the 6 February 2023 Kahramanmaraş, Türkiye, Earthquake Sequence from Satellite Data (ver. 1.1, February 2024)
This data release contains two datasets that depict fault rupture on the East Anatolian and Çardak faults resulting from the Mw7.8 and Mw7.5 earthquakes in Turkey (Türkiye). It contains two additional datasets that describe satellite imagery coverage and observation gaps. The 6 February 2023 earthquake sequence caused >500 km of combined surface rupture on the primarily left-lateral...
Western U.S. geologic deformation model for use in the U.S. National Seismic Hazard Model 2023, version 1.0 Western U.S. geologic deformation model for use in the U.S. National Seismic Hazard Model 2023, version 1.0
The U.S. National Seismic Hazard Model (NSHM) relies on deformation models to assign slip rates along active faults used in the earthquake rupture forecast. Here, we present the geologic deformation model results in tabular form. We provide model outputs in multiple file formats, as well as the polygons used in analyses throughout the geologic deformation model process.The data presented...
Strike-slip in transtension: Complex crustal architecture of the Warm Springs Valley fault zone, northern Walker Lane Strike-slip in transtension: Complex crustal architecture of the Warm Springs Valley fault zone, northern Walker Lane
This data release contains field data for two P-wave seismic reflection profiles acquired across the Warm Springs Valley fault zone, part of the Northern Walker Lane, NV. The dataset consists of high-resolution seismic reflection field records in .segy format, shot coordinates in .csv format, and observers? logs in .pdf format. The high-resolution seismic profiles are approximately 4 km...
Filter Total Items: 25
Rapid surface rupture mapping from satellite data: The 2023 Kahramanmaraş, Turkey (Türkiye), earthquake sequence Rapid surface rupture mapping from satellite data: The 2023 Kahramanmaraş, Turkey (Türkiye), earthquake sequence
The 6 February 2023 Kahramanmaraş, Turkey (Türkiye), earthquake sequence produced > 500 km of surface rupture primarily on the left‐lateral East Anatolian (~345 km) and Çardak (~175 km) faults. Constraining the length and magnitude of surface displacement on the causative faults is critical for loss estimates, recovery efforts, rapid identification of impacted infrastructure, and fault
Authors
Nadine Reitman, Richard Briggs, William Barnhart, Alexandra Hatem, Jessica Jobe, Christopher DuRoss, Ryan Gold, John Mejstrik, Camille Collett, Richard Koehler, Sinan Akciz
Rapid characterization of the February 2023 Kahramanmaraş, Turkey, earthquake sequence Rapid characterization of the February 2023 Kahramanmaraş, Turkey, earthquake sequence
The 6 February 2023 Mw 7.8 Pazarcık and subsequent Mw 7.5 Elbistan earthquakes generated strong ground shaking that resulted in catastrophic human and economic loss across south‐central Türkiye and northwest Syria. The rapid characterization of the earthquakes, including their location, size, fault geometries, and slip kinematics, is critical to estimate the impact of significant seismic...
Authors
Dara Goldberg, Tuncay Taymaz, Nadine Reitman, Alexandra Hatem, Seda Yolsal-Cevikbilen, William Barnhart, Tahir Irmak, David Wald, Taylan Ocalan, William Yeck, Berkan Ozkan, Jessica Jobe, David Shelly, Eric Thompson, Christopher DuRoss, Paul Earle, Richard Briggs, Harley Benz, Ceyhun Erman, Ali Dogan, Cemali Altuntas
Climatic influence on the expression of strike-slip faulting Climatic influence on the expression of strike-slip faulting
Earthquakes on strike-slip faults are preserved in the geomorphic record by offset landforms that span a range of displacements, from small offsets created in the most recent earthquake (MRE) to large offsets that record cumulative slip from multiple prior events. An exponential decay in the number of large cumulative offsets has been observed on many faults, and a leading hypothesis is...
Authors
Nadine Reitman, Yann Klinger, Richard Briggs, Ryan Gold
Revised earthquake geology inputs for the central and eastern United States and southeast Canada for the 2023 National Seismic Hazard Model Revised earthquake geology inputs for the central and eastern United States and southeast Canada for the 2023 National Seismic Hazard Model
It has been nearly a decade since updates to seismic and fault sources in the central and eastern United States (CEUS) were last assessed for the 2012 Central and Eastern United States Seismic Source Characterization for nuclear facilities (CEUS-SSCn) and 2014 United States Geological Survey National Seismic Hazard Model (NSHM) for the conterminous U.S. In advance of the 2023 NSHM update...
Authors
Jessica Jobe, Alexandra Hatem, Ryan Gold, Christopher DuRoss, Nadine Reitman, Richard Briggs, Camille Collett
Western U.S. geologic deformation model for use in the U.S. National Seismic Hazard Model 2023 Western U.S. geologic deformation model for use in the U.S. National Seismic Hazard Model 2023
Fault geometry and slip rates are key input data for geologic deformation models, which are a fundamental component of probabilistic seismic hazard analyses (PSHAs). However, geologic sources for PSHA have traditionally been limited to faults with field‐based slip rate constraints, which results in underrepresentation of known, but partially characterized, active faults. Here, we...
Authors
Alexandra Hatem, Nadine Reitman, Richard Briggs, Ryan Gold, Jessica Jobe, Reed J. Burgette
How similar was the 1983 Mw 6.9 Borah Peak earthquake rupture to its surface-faulting predecessors along the northern Lost River fault zone (Idaho, USA)? How similar was the 1983 Mw 6.9 Borah Peak earthquake rupture to its surface-faulting predecessors along the northern Lost River fault zone (Idaho, USA)?
We excavated trenches at two paleoseismic sites bounding a trans-basin bedrock ridge (the Willow Creek Hills) along the northern Lost River fault zone to explore the uniqueness of the 1983 Mw 6.9 Borah Peak earthquake compared to its prehistoric predecessors. At the Sheep Creek site on the southernmost Warm Springs section, two earthquakes occurred at 9.8−14.0 ka (95% confidence) and 6.5...
Authors
Christopher DuRoss, Richard Briggs, Ryan Gold, Alexandra Hatem, Austin Elliott, Jaime Delano, Ivan Medina-Cascales, Harrison J. Gray, Shannon Mahan, Sylvia Nicovich, Zachery Lifton, Emily Kleber, Greg McDonald, Adam Hiscock, Mike Bunds, Nadine Reitman
Non-USGS Publications**
Reitman, N.G. and P. Molnar (2021) Strain and velocity across the Great Basin derived from 15-ka fault slip rates: Implications for continuous deformation and seismic hazards in the Walker Lane, California-Nevada, USA. Tectonics. doi: 10.1029/2020TC006389
Reitman, N.G. and P. Molnar (2020) Input parameters, output data, and script to calculate strain and velocity from fault source parameters. [Data set]. Zenodo. https://doi.org/10.5281/zenodo.3895334
Reitman, N.G., K.J. Mueller, G.E. Tucker, R.D. Gold, R.W. Briggs, and K.R. Barnhart. (2019) Numerical model code and input files to run landscape evolution models with strike-slip faulting and measure channel offsets. [Data set]. Zenodo. http://doi.org/10.5281/zenodo.3374026
Litchfield, N.J., K.J. Clark, U.A. Cochran, J. Mountjoy, C. Mueller, R. Morgenstern, K.R. Berryman, B.G. McFadgen, R. Steele, N.G. Reitman, J. Howarth, and P. Villamor. (2020) Unraveling complex coastal deformation mechanisms using marine terrace paleoseismology Puatai Beach and Pakarae River mouth, northern Hikurangi Margin, New Zealand. Bulletin of the Seismological Society of America. doi: 10.1785/0120190208
Reitman, N.G., Ge, S., and Mueller, K. (2014) Groundwater flow and its effect on salt dissolution in Gypsum Canyon watershed, Paradox Basin, southeast Utah, USA. Hydrogeology Journal, doi: 10.1007/s10040-014-1126-0.
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.