Peter M Powers, PhD
I am a research and development geophysicist specializing in probabilisitic seismic hazard analysis.
Science and Products
Filter Total Items: 13
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Ground motions from induced earthquakes in Oklahoma and Kansas Ground motions from induced earthquakes in Oklahoma and Kansas
Improved predictions of earthquake ground motions are critical to advancing seismic hazard analyses and earthquake response. The high seismicity rate from 2009 to 2016 in Oklahoma and Kansas provides an extensive data set for examining the ground motions from these events. We evaluate the ability of three suites of ground‐motion prediction equations (GMPEs)—appropriate for modeling...
Authors
Morgan Moschetti, Eric Thompson, Peter Powers, Susan Hoover, Daniel McNamara
Additional period and site class maps for the 2014 National Seismic Hazard Model for the conterminous United States Additional period and site class maps for the 2014 National Seismic Hazard Model for the conterminous United States
The 2014 update of the U.S. Geological Survey (USGS) National Seismic Hazard Model (NSHM) for the conterminous United States (2014 NSHM; Petersen and others, 2014, 2015) included probabilistic ground motion maps for 2 percent and 10 percent probabilities of exceedance in 50 years, derived from seismic hazard curves for peak ground acceleration (PGA) and 0.2 and 1.0 second spectral...
Authors
Allison Shumway, Mark Petersen, Peter Powers, Sanaz Rezaeian
The science, engineering applications, and policy implications of simulation-based PSHA The science, engineering applications, and policy implications of simulation-based PSHA
We summarize scientific methods for developing probabilistic seismic hazard assessments from 3-D earthquake ground motion simulations, describe current use of simulated ground motions for engineering applications, and discuss on-going efforts to incorporate these effects in the U.S. national seismic hazard model. The 3-D simulations provide important, additional information about...
Authors
Morgan Moschetti, Sandra Chang, C.B Crouse, Arthur Frankel, Robert Graves, H Puangnak, Nico Luco, Christine Goulet, Sanaz Rezaeian, Allison Shumway, Peter Powers, Mark Petersen, Scott Callaghan, T.H. Jordan, Kevin Milner
2018 one‐year seismic hazard forecast for the central and eastern United States from induced and natural earthquakes 2018 one‐year seismic hazard forecast for the central and eastern United States from induced and natural earthquakes
This article describes the U.S. Geological Survey (USGS) 2018 one‐year probabilistic seismic hazard forecast for the central and eastern United States from induced and natural earthquakes. For consistency, the updated 2018 forecast is developed using the same probabilistic seismicity‐based methodology as applied in the two previous forecasts. Rates of earthquakes across the United States...
Authors
Mark Petersen, Charles Mueller, Morgan Moschetti, Susan Hoover, Kenneth Rukstales, Daniel McNamara, Robert A. Williams, Allison Shumway, Peter Powers, Paul Earle, Andrea Llenos, Andrew Michael, Justin Rubinstein, Jack Norbeck, Elizabeth Cochran
A synoptic view of the Third Uniform California Earthquake Rupture Forecast (UCERF3) A synoptic view of the Third Uniform California Earthquake Rupture Forecast (UCERF3)
Probabilistic forecasting of earthquake‐producing fault ruptures informs all major decisions aimed at reducing seismic risk and improving earthquake resilience. Earthquake forecasting models rely on two scales of hazard evolution: long‐term (decades to centuries) probabilities of fault rupture, constrained by stress renewal statistics, and short‐term (hours to years) probabilities of...
Authors
Edward H. Field, Thomas Jordan, Morgan Page, Kevin Milner, Bruce E. Shaw, Timothy Dawson, Glenn Biasi, Thomas Parsons, Jeanne Hardebeck, Andrew Michael, Ray Weldon, Peter Powers, Kaj Johnson, Yuehua Zeng, Peter Bird, Karen Felzer, Nicholas van der Elst, Christopher Madden, Ramon Arrowsmith, Maximillan Werner, Wayne Thatcher
Seismic source characterization for the 2014 update of the U.S. National Seismic Hazard Model Seismic source characterization for the 2014 update of the U.S. National Seismic Hazard Model
We present the updated seismic source characterization (SSC) for the 2014 update of the National Seismic Hazard Model (NSHM) for the conterminous United States. Construction of the seismic source models employs the methodology that was developed for the 1996 NSHM but includes new and updated data, data types, source models, and source parameters that reflect the current state of...
Authors
Morgan Moschetti, Peter Powers, Mark Petersen, Oliver Boyd, Rui Chen, Edward Field, Arthur Frankel, Kathleen Haller, Stephen Harmsen, Charles Mueller, Russell Wheeler, Yuehua Zeng
The 2014 United States National Seismic Hazard Model The 2014 United States National Seismic Hazard Model
New seismic hazard maps have been developed for the conterminous United States using the latest data, models, and methods available for assessing earthquake hazard. The hazard models incorporate new information on earthquake rupture behavior observed in recent earthquakes; fault studies that use both geologic and geodetic strain rate data; earthquake catalogs through 2012 that include...
Authors
Mark Petersen, Morgan Moschetti, Peter Powers, Charles Mueller, Kathleen Haller, Arthur Frankel, Yuehua Zeng, Sanaz Rezaeian, Stephen Harmsen, Oliver Boyd, Edward H. Field, Rui Chen, Kenneth Rukstales, Nico Luco, Russell Wheeler, Robert Williams, Anna Olsen
The 2014 update to the National Seismic Hazard Model in California The 2014 update to the National Seismic Hazard Model in California
The 2014 update to the U. S. Geological Survey National Seismic Hazard Model in California introduces a new earthquake rate model and new ground motion models (GMMs) that give rise to numerous changes to seismic hazard throughout the state. The updated earthquake rate model is the third version of the Uniform California Earthquake Rupture Forecast (UCERF3), wherein the rates of all...
Authors
Peter Powers, Edward Field
Long‐term time‐dependent probabilities for the third Uniform California Earthquake Rupture Forecast (UCERF3) Long‐term time‐dependent probabilities for the third Uniform California Earthquake Rupture Forecast (UCERF3)
The 2014 Working Group on California Earthquake Probabilities (WGCEP 2014) presents time-dependent earthquake probabilities for the third Uniform California Earthquake Rupture Forecast (UCERF3). Building on the UCERF3 time-independent model, published previously, renewal models are utilized to represent elastic-rebound-implied probabilities. A new methodology has been developed that...
Authors
Edward H. Field, Glenn Biasi, Peter Bird, Timothy Dawson, Karen Felzer, David Jackson, Kaj Johnson, Thomas Jordan, Christopher Madden, Andrew Michael, Kevin Milner, Morgan Page, Thomas Parsons, Peter Powers, Bruce E. Shaw, Wayne Thatcher, Ray Weldon, Yuehua Zeng
Implementation of NGA-West2 ground motion models in the 2014 U.S. National Seismic Hazard Maps Implementation of NGA-West2 ground motion models in the 2014 U.S. National Seismic Hazard Maps
The U.S. National Seismic Hazard Maps (NSHMs) have been an important component of seismic design regulations in the United States for the past several decades. These maps present earthquake ground shaking intensities at specified probabilities of being exceeded over a 50-year time period. The previous version of the NSHMs was developed in 2008; during 2012 and 2013, scientists at the U.S
Authors
Sanaz Rezaeian, Mark Petersen, Morgan Moschetti, Peter Powers, Stephen C. Harmsen, Arthur Frankel
Documentation for the 2014 update of the United States national seismic hazard maps Documentation for the 2014 update of the United States national seismic hazard maps
The national seismic hazard maps for the conterminous United States have been updated to account for new methods, models, and data that have been obtained since the 2008 maps were released (Petersen and others, 2008). The input models are improved from those implemented in 2008 by using new ground motion models that have incorporated about twice as many earthquake strong ground shaking...
Authors
Mark Petersen, Morgan Moschetti, Peter Powers, Charles Mueller, Kathleen M. Haller, Arthur Frankel, Yuehua Zeng, Sanaz Rezaeian, Stephen C. Harmsen, Oliver Boyd, Edward H. Field, Rui Chen, Kenneth Rukstales, Nico Luco, Russell Wheeler, Robert A. Williams, Anna Olsen
The UCERF3 grand inversion: Solving for the long‐term rate of ruptures in a fault system The UCERF3 grand inversion: Solving for the long‐term rate of ruptures in a fault system
We present implementation details, testing, and results from a new inversion‐based methodology, known colloquially as the “grand inversion,” developed for the Uniform California Earthquake Rupture Forecast (UCERF3). We employ a parallel simulated annealing algorithm to solve for the long‐term rate of all ruptures that extend through the seismogenic thickness on major mapped faults in...
Authors
Morgan Page, Edward Field, Kevin Milner, Peter Powers
New USGS map shows where damaging earthquakes are most likely to occur in US New USGS map shows where damaging earthquakes are most likely to occur in US
USGS scientists and our partners recently revealed the latest National Seismic Hazard Model, showing that nearly 75% of the United States could experience a damaging earthquake, emphasizing seismic hazards span a significant part of the country.
Science and Products
Filter Total Items: 13
No Result Found
Filter Total Items: 38
Ground motions from induced earthquakes in Oklahoma and Kansas Ground motions from induced earthquakes in Oklahoma and Kansas
Improved predictions of earthquake ground motions are critical to advancing seismic hazard analyses and earthquake response. The high seismicity rate from 2009 to 2016 in Oklahoma and Kansas provides an extensive data set for examining the ground motions from these events. We evaluate the ability of three suites of ground‐motion prediction equations (GMPEs)—appropriate for modeling...
Authors
Morgan Moschetti, Eric Thompson, Peter Powers, Susan Hoover, Daniel McNamara
Additional period and site class maps for the 2014 National Seismic Hazard Model for the conterminous United States Additional period and site class maps for the 2014 National Seismic Hazard Model for the conterminous United States
The 2014 update of the U.S. Geological Survey (USGS) National Seismic Hazard Model (NSHM) for the conterminous United States (2014 NSHM; Petersen and others, 2014, 2015) included probabilistic ground motion maps for 2 percent and 10 percent probabilities of exceedance in 50 years, derived from seismic hazard curves for peak ground acceleration (PGA) and 0.2 and 1.0 second spectral...
Authors
Allison Shumway, Mark Petersen, Peter Powers, Sanaz Rezaeian
The science, engineering applications, and policy implications of simulation-based PSHA The science, engineering applications, and policy implications of simulation-based PSHA
We summarize scientific methods for developing probabilistic seismic hazard assessments from 3-D earthquake ground motion simulations, describe current use of simulated ground motions for engineering applications, and discuss on-going efforts to incorporate these effects in the U.S. national seismic hazard model. The 3-D simulations provide important, additional information about...
Authors
Morgan Moschetti, Sandra Chang, C.B Crouse, Arthur Frankel, Robert Graves, H Puangnak, Nico Luco, Christine Goulet, Sanaz Rezaeian, Allison Shumway, Peter Powers, Mark Petersen, Scott Callaghan, T.H. Jordan, Kevin Milner
2018 one‐year seismic hazard forecast for the central and eastern United States from induced and natural earthquakes 2018 one‐year seismic hazard forecast for the central and eastern United States from induced and natural earthquakes
This article describes the U.S. Geological Survey (USGS) 2018 one‐year probabilistic seismic hazard forecast for the central and eastern United States from induced and natural earthquakes. For consistency, the updated 2018 forecast is developed using the same probabilistic seismicity‐based methodology as applied in the two previous forecasts. Rates of earthquakes across the United States...
Authors
Mark Petersen, Charles Mueller, Morgan Moschetti, Susan Hoover, Kenneth Rukstales, Daniel McNamara, Robert A. Williams, Allison Shumway, Peter Powers, Paul Earle, Andrea Llenos, Andrew Michael, Justin Rubinstein, Jack Norbeck, Elizabeth Cochran
A synoptic view of the Third Uniform California Earthquake Rupture Forecast (UCERF3) A synoptic view of the Third Uniform California Earthquake Rupture Forecast (UCERF3)
Probabilistic forecasting of earthquake‐producing fault ruptures informs all major decisions aimed at reducing seismic risk and improving earthquake resilience. Earthquake forecasting models rely on two scales of hazard evolution: long‐term (decades to centuries) probabilities of fault rupture, constrained by stress renewal statistics, and short‐term (hours to years) probabilities of...
Authors
Edward H. Field, Thomas Jordan, Morgan Page, Kevin Milner, Bruce E. Shaw, Timothy Dawson, Glenn Biasi, Thomas Parsons, Jeanne Hardebeck, Andrew Michael, Ray Weldon, Peter Powers, Kaj Johnson, Yuehua Zeng, Peter Bird, Karen Felzer, Nicholas van der Elst, Christopher Madden, Ramon Arrowsmith, Maximillan Werner, Wayne Thatcher
Seismic source characterization for the 2014 update of the U.S. National Seismic Hazard Model Seismic source characterization for the 2014 update of the U.S. National Seismic Hazard Model
We present the updated seismic source characterization (SSC) for the 2014 update of the National Seismic Hazard Model (NSHM) for the conterminous United States. Construction of the seismic source models employs the methodology that was developed for the 1996 NSHM but includes new and updated data, data types, source models, and source parameters that reflect the current state of...
Authors
Morgan Moschetti, Peter Powers, Mark Petersen, Oliver Boyd, Rui Chen, Edward Field, Arthur Frankel, Kathleen Haller, Stephen Harmsen, Charles Mueller, Russell Wheeler, Yuehua Zeng
The 2014 United States National Seismic Hazard Model The 2014 United States National Seismic Hazard Model
New seismic hazard maps have been developed for the conterminous United States using the latest data, models, and methods available for assessing earthquake hazard. The hazard models incorporate new information on earthquake rupture behavior observed in recent earthquakes; fault studies that use both geologic and geodetic strain rate data; earthquake catalogs through 2012 that include...
Authors
Mark Petersen, Morgan Moschetti, Peter Powers, Charles Mueller, Kathleen Haller, Arthur Frankel, Yuehua Zeng, Sanaz Rezaeian, Stephen Harmsen, Oliver Boyd, Edward H. Field, Rui Chen, Kenneth Rukstales, Nico Luco, Russell Wheeler, Robert Williams, Anna Olsen
The 2014 update to the National Seismic Hazard Model in California The 2014 update to the National Seismic Hazard Model in California
The 2014 update to the U. S. Geological Survey National Seismic Hazard Model in California introduces a new earthquake rate model and new ground motion models (GMMs) that give rise to numerous changes to seismic hazard throughout the state. The updated earthquake rate model is the third version of the Uniform California Earthquake Rupture Forecast (UCERF3), wherein the rates of all...
Authors
Peter Powers, Edward Field
Long‐term time‐dependent probabilities for the third Uniform California Earthquake Rupture Forecast (UCERF3) Long‐term time‐dependent probabilities for the third Uniform California Earthquake Rupture Forecast (UCERF3)
The 2014 Working Group on California Earthquake Probabilities (WGCEP 2014) presents time-dependent earthquake probabilities for the third Uniform California Earthquake Rupture Forecast (UCERF3). Building on the UCERF3 time-independent model, published previously, renewal models are utilized to represent elastic-rebound-implied probabilities. A new methodology has been developed that...
Authors
Edward H. Field, Glenn Biasi, Peter Bird, Timothy Dawson, Karen Felzer, David Jackson, Kaj Johnson, Thomas Jordan, Christopher Madden, Andrew Michael, Kevin Milner, Morgan Page, Thomas Parsons, Peter Powers, Bruce E. Shaw, Wayne Thatcher, Ray Weldon, Yuehua Zeng
Implementation of NGA-West2 ground motion models in the 2014 U.S. National Seismic Hazard Maps Implementation of NGA-West2 ground motion models in the 2014 U.S. National Seismic Hazard Maps
The U.S. National Seismic Hazard Maps (NSHMs) have been an important component of seismic design regulations in the United States for the past several decades. These maps present earthquake ground shaking intensities at specified probabilities of being exceeded over a 50-year time period. The previous version of the NSHMs was developed in 2008; during 2012 and 2013, scientists at the U.S
Authors
Sanaz Rezaeian, Mark Petersen, Morgan Moschetti, Peter Powers, Stephen C. Harmsen, Arthur Frankel
Documentation for the 2014 update of the United States national seismic hazard maps Documentation for the 2014 update of the United States national seismic hazard maps
The national seismic hazard maps for the conterminous United States have been updated to account for new methods, models, and data that have been obtained since the 2008 maps were released (Petersen and others, 2008). The input models are improved from those implemented in 2008 by using new ground motion models that have incorporated about twice as many earthquake strong ground shaking...
Authors
Mark Petersen, Morgan Moschetti, Peter Powers, Charles Mueller, Kathleen M. Haller, Arthur Frankel, Yuehua Zeng, Sanaz Rezaeian, Stephen C. Harmsen, Oliver Boyd, Edward H. Field, Rui Chen, Kenneth Rukstales, Nico Luco, Russell Wheeler, Robert A. Williams, Anna Olsen
The UCERF3 grand inversion: Solving for the long‐term rate of ruptures in a fault system The UCERF3 grand inversion: Solving for the long‐term rate of ruptures in a fault system
We present implementation details, testing, and results from a new inversion‐based methodology, known colloquially as the “grand inversion,” developed for the Uniform California Earthquake Rupture Forecast (UCERF3). We employ a parallel simulated annealing algorithm to solve for the long‐term rate of all ruptures that extend through the seismogenic thickness on major mapped faults in...
Authors
Morgan Page, Edward Field, Kevin Milner, Peter Powers
New USGS map shows where damaging earthquakes are most likely to occur in US New USGS map shows where damaging earthquakes are most likely to occur in US
USGS scientists and our partners recently revealed the latest National Seismic Hazard Model, showing that nearly 75% of the United States could experience a damaging earthquake, emphasizing seismic hazards span a significant part of the country.