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Peter M Powers, PhD

I am a research and development geophysicist specializing in probabilisitic seismic hazard analysis.

Science and Products

USGS science for a changing world logo

Operational Earthquake Forecasting – Implementing a Real-Time System for California

It is well know that every earthquake can spawn others (e.g., as aftershocks), and that such triggered events can be large and damaging, as recently demonstrated by L’Aquila, Italy and Christchurch, New Zealand earthquakes. In spite of being an explicit USGS strategic-action priority (http://pubs.usgs.gov/of/2012/1088; page 32), the USGS currently lacks an automated system with which to...
By
John Wesley Powell Center for Analysis and Synthesis
Operational Earthquake Forecasting – Implementing a Real-Time System for California

Operational Earthquake Forecasting – Implementing a Real-Time System for California

It is well know that every earthquake can spawn others (e.g., as aftershocks), and that such triggered events can be large and damaging, as recently demonstrated by L’Aquila, Italy and Christchurch, New Zealand earthquakes. In spite of being an explicit USGS strategic-action priority (http://pubs.usgs.gov/of/2012/1088; page 32), the USGS currently lacks an automated system with which to forecast
Learn More
Filter Total Items: 13

Data Release for the The 2023 Alaska National Seismic Hazard Model Data Release for the The 2023 Alaska National Seismic Hazard Model

The U.S. National Seismic Hazard Model (NSHM) for the state of Alaska was updated in 2023 as part of the 50-state NSHM update. The new model incorporates more than 15 years of additional science since the release of the previous model in 2007 and has been reviewed by a six-member review panel and a supplementary eight-member team of ground motion model developers. This time-independent
By
Geologic Hazards Science Center

Data Release for the 2023 U.S. 50-State National Seismic Hazard Model - Overview Data Release for the 2023 U.S. 50-State National Seismic Hazard Model - Overview

This data release contains data sets associated with the 2023 50-State National Seismic Hazard Model Update. The 2023 50-State National Seimsic Hazard Model (NSHM) Update includes an update to the NSHMs for the conterminous U.S (CONUS, last updated in 2018), Alaska (AK, last updated in 2007), and Hawaii (last updated in 2001). Data sets include inputs like seismicity catalogs used as...
By
Earthquake Hazards Program

Earthquake geology inputs for the U.S. National Seismic Hazard Model (NSHM) 2023 (western U.S.) (ver. 3.0, December 2023) Earthquake geology inputs for the U.S. National Seismic Hazard Model (NSHM) 2023 (western U.S.) (ver. 3.0, December 2023)

This Data Release contains version 3.0 of two related earthquake geology databases for use in the 2023 U.S. National Seismic Hazard Model. The databases are: 1) A fault sections database (“NSHM23_FSD_v3”), which depicts the geometry of faults capable of hosting independent earthquakes, and 2) an earthquake geology site information database (“NSHM23_EQGeoDB_v3”), which contains fault slip...
By
Geologic Hazards Science Center

nshmp-haz-v2 nshmp-haz-v2

U.S. Geological Survey (USGS) National Seismic Hazard Model Project (NSHMP) codes for performing probabilistic seismic hazard (PSHA) and related analyses. These codes are intended for use with seismic hazard models developed by the NSHMP for the U.S. and its territories. This project includes a variety of command line applications and web service classes and relies on the nshmp-lib...
By
Earthquake Hazards Program

nshm-hawaii-v2 nshm-hawaii-v2

National Seismic Hazard Model (NSHM) for the State of Hawaii. This model is intended for use with U.S. Geological Survey (USGS) hazard software nshmp-haz.
By
Earthquake Hazards Program

nshm-conus-v5 nshm-conus-v5

National Seismic Hazard Model (NSHM) for the conterminous U.S. This model is intended for use with U.S. Geological Survey (USGS) hazard software nshmp-haz. This model was last updated in 2018.
By
Earthquake Hazards Program

Seismic-hazard maps for the conterminous United States, 2014 Seismic-hazard maps for the conterminous United States, 2014

The maps presented here provide an update to the 2008 data contained in U.S Geological Survey Scientific Investigations Map 3195 (http://pubs.usgs.gov/sim/3195/).Probabilistic seismic-hazard maps were prepared for the conterminous United States for 2014 portraying peak horizontal acceleration and horizontal spectral response acceleration for 0.2- and 1.0-second periods with probabilities...
By
Natural Hazards Mission Area, Earthquake Hazards Program, Geologic Hazards Science Center
Filter Total Items: 38

Subduction zone earthquake catalog separation tool: Implementation in the USGS 2025 Puerto Rico and U.S. Virgin Islands National Seismic Hazard Model Subduction zone earthquake catalog separation tool: Implementation in the USGS 2025 Puerto Rico and U.S. Virgin Islands National Seismic Hazard Model

The U.S. Geological Survey (USGS) periodically releases updates to National Seismic Hazard Model (NSHM) for the United States and its territories leveraging current scientific knowledge and methodologies to guide public policy, building codes, and risk assessments regarding potential ground shaking due to earthquakes that may result in infrastructure damage. In subduction zones, there is...
Authors
Kirstie Lafon Haynie, Eric M. Thompson, Mike Hearne, Gavin P. Hayes, David R. Shelly, Allison Shumway, Andrea L. Llenos, Andrew J. Michael, Peter M. Powers
By
Natural Hazards Mission Area, Earthquake Hazards Program, Earthquake Science Center, Geologic Hazards Science Center

A scientific vision and roadmap for earthquake rupture forecast developments, a USGS perspective A scientific vision and roadmap for earthquake rupture forecast developments, a USGS perspective

We articulate a scientific vision and roadmap for the development of improved Earthquake Rupture Forecast models, which are one of the two main modeling components used in modern seismic hazard and risk analysis. One primary future objective is to provide fully time-dependent models that include both elastic rebound and spatiotemporal clustering nationwide, which is particularly...
Authors
Edward H. Field, Alexandra Elise Hatem, Bruce E. Shaw, Morgan T. Page, P. Martin Mai, Kevin Ross Milner, Andrea L. Llenos, Andrew J. Michael, Frederick Pollitz, Jessica Ann Thompson Jobe, Thomas E. Parsons, Olaf Zielke, David R. Shelly, Alice-Agnes Gabriel, Devin McPhillips, Richard W. Briggs, Elizabeth S. Cochran, Nico Luco, Mark D. Petersen, Peter M. Powers, Justin Rubinstein, Allison Shumway, Nicholas van der Elst, Yuehua Zeng, Christopher DuRoss, Jason M. Altekruse
By
Geologic Hazards Science Center

The 2023 Alaska National Seismic Hazard Model The 2023 Alaska National Seismic Hazard Model

US Geological Survey (USGS) National Seismic Hazard Models (NSHMs) are used extensively for seismic design regulations in the United States and earthquake scenario development, as well as risk assessment and mitigation for both buildings and infrastructure. This 2023 update of the long-term, time-independent Alaska NSHM includes substantial changes to both the earthquake rupture forecast...
Authors
Peter M. Powers, Jason M. Altekruse, Andrea L. Llenos, Andrew J. Michael, Kirstie Lafon Haynie, Peter J. Haeussler, Adrian Bender, Sanaz Rezaeian, Morgan P. Moschetti, James Andrew Smith, Richard W. Briggs, Robert Witter, Charles Mueller, Yuehua Zeng, Demi Leafar Girot, Julie A. Herrick, Allison Shumway, Mark D. Petersen
By
Geologic Hazards Science Center

Framework for implementing damping scaling factors in U.S. Geological Survey National Seismic Hazard Models Framework for implementing damping scaling factors in U.S. Geological Survey National Seismic Hazard Models

Traditionally, probabilistic seismic hazard analysis (PSHA) has focused on calculating ground motion hazard curves for elastic, 5%-damped pseudo spectral accelerations, Sa(T,5%), which are used as the basis for engineering design parameters and targets for ground motion selection and modification. However, structures and geotechnical systems can exhibit a wide range of damping ratios...
Authors
Andrew James Makdisi, Dallin Smith, Sanaz Rezaeian, Peter M. Powers, Kyle Withers
By
Geologic Hazards Science Center

The 2023 U.S. National Seismic Hazard Model: Subduction ground motion models The 2023 U.S. National Seismic Hazard Model: Subduction ground motion models

The US Geological Survey National Seismic Hazard Models (NSHMs) are used to calculate earthquake ground-shaking intensities for design and rehabilitation of structures in the United States. The most recent 2014 and 2018 versions of the NSHM for the conterminous United States included major updates to ground-motion models (GMMs) for active and stable crustal tectonic settings; however...
Authors
Sanaz Rezaeian, Peter M. Powers, Jason M. Altekruse, Sean Kamran Ahdi, Mark D. Petersen, Allison Shumway, Arthur D. Frankel, Erin A. Wirth, James Andrew Smith, Morgan P. Moschetti, Kyle Withers, Julie A. Herrick
By
Natural Hazards Mission Area, Earthquake Hazards Program, Earthquake Science Center, Geologic Hazards Science Center

Integration of rupture directivity models for the US National Seismic Hazard Model Integration of rupture directivity models for the US National Seismic Hazard Model

Several rupture directivity models (DMs) have been developed in recent years to describe the near-source spatial variations in ground motion amplitudes related to propagation of rupture along the fault. We recently organized an effort towards incorporating these directivity effects into the USGS National Seismic Hazard Model (NSHM), by first evaluating the community's work and potential...
Authors
Kyle Withers, Morgan P. Moschetti, Peter M. Powers, Mark D. Petersen, Robert Graves, Brad T. Aagaard, Annemarie S. Baltay Sundstrom, Nico Luco, Erin A. Wirth, Sanaz Rezaeian, Eric M. Thompson
By
Geologic Hazards Science Center

Unified Hazard Tool Unified Hazard Tool

Use this web application to obtain earthquake hazards data from the U.S. Hazard Model.
By
Natural Hazards Mission Area, Earthquake Hazards Program, Geologic Hazards Science Center

nshm-alaska-v2 nshm-alaska-v2

Software release of 2023 Alaska NSHM input files for use with nshmp-haz.
By
Geologic Hazards Science Center

nshm-hawaii-v2 nshm-hawaii-v2

National Seismic Hazard Model (NSHM) for the State of Hawaii. This model is intended for use with U.S. Geological Survey (USGS) hazard software nshmp-haz.
By
Natural Hazards Mission Area, Earthquake Hazards Program, Geologic Hazards Science Center

nshm-conus-v5 nshm-conus-v5

National Seismic Hazard Model (NSHM) for the conterminous U.S. This model is intended for use with U.S. Geological Survey (USGS) hazard software nshmp-haz. This model was last updated in 2018.
By
Natural Hazards Mission Area, Earthquake Hazards Program, Geologic Hazards Science Center

nshmp-haz-v2 nshmp-haz-v2

U.S. Geological Survey (USGS) National Seismic Hazard Model Project (NSHMP) codes for performing probabilistic seismic hazard (PSHA) and related analyses. These codes are intended for use with seismic hazard models developed by the NSHMP for the U.S. and its territories. This project includes a variety of command line applications and web service classes and relies on the nshmp-lib...
By
Natural Hazards Mission Area, Earthquake Hazards Program, Geologic Hazards Science Center, Supplemental Appropriations for Disaster Recovery Activities

nshmp-lib nshmp-lib

nshmp-lib is a USGS developed Java library that supports probabilistic seismic hazard (PSHA) and related analyses. This project includes all the code required to load, process and query USGS National Seismic Hazard Models (NSHMs). nshmp-lib is used by command line applications and web services found in the nshmp-haz project. See that project for running PSHA calculations.
By
Natural Hazards Mission Area, Earthquake Hazards Program, Geologic Hazards Science Center

nshm-fault-sections nshm-fault-sections

A repository of all geologic fault section data included in USGS National Seismic Hazard Models
By
Natural Hazards Mission Area, Earthquake Hazards Program, Geologic Hazards Science Center
Hazard map from the 2023 50-state update of the National Seismic Hazard Model Project

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.
By
Natural Hazards Mission Area, Earthquake Hazards Program, Earthquake Science Center, Geologic Hazards Science Center, Communications and Publishing
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...

Read Article
New USGS Model Shows Earthquake Hazard Probability for Hawaiian Islands

New USGS Model Shows Earthquake Hazard Probability for Hawaiian Islands

A new U.S. Geological Survey study indicates that the Hawaiian Islands, especially the Island of Hawaiʻi and neighboring islands with active volcanic...

Read Article
USGS provides update for the National Seismic Hazard Model

USGS provides update for the National Seismic Hazard Model

USGS experts recently released a study that incorporates the latest earthquake science findings into an update of the National Seismic Hazard Model...

Read Article

Science and Products

USGS science for a changing world logo

Operational Earthquake Forecasting – Implementing a Real-Time System for California

It is well know that every earthquake can spawn others (e.g., as aftershocks), and that such triggered events can be large and damaging, as recently demonstrated by L’Aquila, Italy and Christchurch, New Zealand earthquakes. In spite of being an explicit USGS strategic-action priority (http://pubs.usgs.gov/of/2012/1088; page 32), the USGS currently lacks an automated system with which to...
By
John Wesley Powell Center for Analysis and Synthesis
Operational Earthquake Forecasting – Implementing a Real-Time System for California

Operational Earthquake Forecasting – Implementing a Real-Time System for California

It is well know that every earthquake can spawn others (e.g., as aftershocks), and that such triggered events can be large and damaging, as recently demonstrated by L’Aquila, Italy and Christchurch, New Zealand earthquakes. In spite of being an explicit USGS strategic-action priority (http://pubs.usgs.gov/of/2012/1088; page 32), the USGS currently lacks an automated system with which to forecast
Learn More
Filter Total Items: 13

Data Release for the The 2023 Alaska National Seismic Hazard Model Data Release for the The 2023 Alaska National Seismic Hazard Model

The U.S. National Seismic Hazard Model (NSHM) for the state of Alaska was updated in 2023 as part of the 50-state NSHM update. The new model incorporates more than 15 years of additional science since the release of the previous model in 2007 and has been reviewed by a six-member review panel and a supplementary eight-member team of ground motion model developers. This time-independent
By
Geologic Hazards Science Center

Data Release for the 2023 U.S. 50-State National Seismic Hazard Model - Overview Data Release for the 2023 U.S. 50-State National Seismic Hazard Model - Overview

This data release contains data sets associated with the 2023 50-State National Seismic Hazard Model Update. The 2023 50-State National Seimsic Hazard Model (NSHM) Update includes an update to the NSHMs for the conterminous U.S (CONUS, last updated in 2018), Alaska (AK, last updated in 2007), and Hawaii (last updated in 2001). Data sets include inputs like seismicity catalogs used as...
By
Earthquake Hazards Program

Earthquake geology inputs for the U.S. National Seismic Hazard Model (NSHM) 2023 (western U.S.) (ver. 3.0, December 2023) Earthquake geology inputs for the U.S. National Seismic Hazard Model (NSHM) 2023 (western U.S.) (ver. 3.0, December 2023)

This Data Release contains version 3.0 of two related earthquake geology databases for use in the 2023 U.S. National Seismic Hazard Model. The databases are: 1) A fault sections database (“NSHM23_FSD_v3”), which depicts the geometry of faults capable of hosting independent earthquakes, and 2) an earthquake geology site information database (“NSHM23_EQGeoDB_v3”), which contains fault slip...
By
Geologic Hazards Science Center

nshmp-haz-v2 nshmp-haz-v2

U.S. Geological Survey (USGS) National Seismic Hazard Model Project (NSHMP) codes for performing probabilistic seismic hazard (PSHA) and related analyses. These codes are intended for use with seismic hazard models developed by the NSHMP for the U.S. and its territories. This project includes a variety of command line applications and web service classes and relies on the nshmp-lib...
By
Earthquake Hazards Program

nshm-hawaii-v2 nshm-hawaii-v2

National Seismic Hazard Model (NSHM) for the State of Hawaii. This model is intended for use with U.S. Geological Survey (USGS) hazard software nshmp-haz.
By
Earthquake Hazards Program

nshm-conus-v5 nshm-conus-v5

National Seismic Hazard Model (NSHM) for the conterminous U.S. This model is intended for use with U.S. Geological Survey (USGS) hazard software nshmp-haz. This model was last updated in 2018.
By
Earthquake Hazards Program

Seismic-hazard maps for the conterminous United States, 2014 Seismic-hazard maps for the conterminous United States, 2014

The maps presented here provide an update to the 2008 data contained in U.S Geological Survey Scientific Investigations Map 3195 (http://pubs.usgs.gov/sim/3195/).Probabilistic seismic-hazard maps were prepared for the conterminous United States for 2014 portraying peak horizontal acceleration and horizontal spectral response acceleration for 0.2- and 1.0-second periods with probabilities...
By
Natural Hazards Mission Area, Earthquake Hazards Program, Geologic Hazards Science Center
Filter Total Items: 38

Subduction zone earthquake catalog separation tool: Implementation in the USGS 2025 Puerto Rico and U.S. Virgin Islands National Seismic Hazard Model Subduction zone earthquake catalog separation tool: Implementation in the USGS 2025 Puerto Rico and U.S. Virgin Islands National Seismic Hazard Model

The U.S. Geological Survey (USGS) periodically releases updates to National Seismic Hazard Model (NSHM) for the United States and its territories leveraging current scientific knowledge and methodologies to guide public policy, building codes, and risk assessments regarding potential ground shaking due to earthquakes that may result in infrastructure damage. In subduction zones, there is...
Authors
Kirstie Lafon Haynie, Eric M. Thompson, Mike Hearne, Gavin P. Hayes, David R. Shelly, Allison Shumway, Andrea L. Llenos, Andrew J. Michael, Peter M. Powers
By
Natural Hazards Mission Area, Earthquake Hazards Program, Earthquake Science Center, Geologic Hazards Science Center

A scientific vision and roadmap for earthquake rupture forecast developments, a USGS perspective A scientific vision and roadmap for earthquake rupture forecast developments, a USGS perspective

We articulate a scientific vision and roadmap for the development of improved Earthquake Rupture Forecast models, which are one of the two main modeling components used in modern seismic hazard and risk analysis. One primary future objective is to provide fully time-dependent models that include both elastic rebound and spatiotemporal clustering nationwide, which is particularly...
Authors
Edward H. Field, Alexandra Elise Hatem, Bruce E. Shaw, Morgan T. Page, P. Martin Mai, Kevin Ross Milner, Andrea L. Llenos, Andrew J. Michael, Frederick Pollitz, Jessica Ann Thompson Jobe, Thomas E. Parsons, Olaf Zielke, David R. Shelly, Alice-Agnes Gabriel, Devin McPhillips, Richard W. Briggs, Elizabeth S. Cochran, Nico Luco, Mark D. Petersen, Peter M. Powers, Justin Rubinstein, Allison Shumway, Nicholas van der Elst, Yuehua Zeng, Christopher DuRoss, Jason M. Altekruse
By
Geologic Hazards Science Center

The 2023 Alaska National Seismic Hazard Model The 2023 Alaska National Seismic Hazard Model

US Geological Survey (USGS) National Seismic Hazard Models (NSHMs) are used extensively for seismic design regulations in the United States and earthquake scenario development, as well as risk assessment and mitigation for both buildings and infrastructure. This 2023 update of the long-term, time-independent Alaska NSHM includes substantial changes to both the earthquake rupture forecast...
Authors
Peter M. Powers, Jason M. Altekruse, Andrea L. Llenos, Andrew J. Michael, Kirstie Lafon Haynie, Peter J. Haeussler, Adrian Bender, Sanaz Rezaeian, Morgan P. Moschetti, James Andrew Smith, Richard W. Briggs, Robert Witter, Charles Mueller, Yuehua Zeng, Demi Leafar Girot, Julie A. Herrick, Allison Shumway, Mark D. Petersen
By
Geologic Hazards Science Center

Framework for implementing damping scaling factors in U.S. Geological Survey National Seismic Hazard Models Framework for implementing damping scaling factors in U.S. Geological Survey National Seismic Hazard Models

Traditionally, probabilistic seismic hazard analysis (PSHA) has focused on calculating ground motion hazard curves for elastic, 5%-damped pseudo spectral accelerations, Sa(T,5%), which are used as the basis for engineering design parameters and targets for ground motion selection and modification. However, structures and geotechnical systems can exhibit a wide range of damping ratios...
Authors
Andrew James Makdisi, Dallin Smith, Sanaz Rezaeian, Peter M. Powers, Kyle Withers
By
Geologic Hazards Science Center

The 2023 U.S. National Seismic Hazard Model: Subduction ground motion models The 2023 U.S. National Seismic Hazard Model: Subduction ground motion models

The US Geological Survey National Seismic Hazard Models (NSHMs) are used to calculate earthquake ground-shaking intensities for design and rehabilitation of structures in the United States. The most recent 2014 and 2018 versions of the NSHM for the conterminous United States included major updates to ground-motion models (GMMs) for active and stable crustal tectonic settings; however...
Authors
Sanaz Rezaeian, Peter M. Powers, Jason M. Altekruse, Sean Kamran Ahdi, Mark D. Petersen, Allison Shumway, Arthur D. Frankel, Erin A. Wirth, James Andrew Smith, Morgan P. Moschetti, Kyle Withers, Julie A. Herrick
By
Natural Hazards Mission Area, Earthquake Hazards Program, Earthquake Science Center, Geologic Hazards Science Center

Integration of rupture directivity models for the US National Seismic Hazard Model Integration of rupture directivity models for the US National Seismic Hazard Model

Several rupture directivity models (DMs) have been developed in recent years to describe the near-source spatial variations in ground motion amplitudes related to propagation of rupture along the fault. We recently organized an effort towards incorporating these directivity effects into the USGS National Seismic Hazard Model (NSHM), by first evaluating the community's work and potential...
Authors
Kyle Withers, Morgan P. Moschetti, Peter M. Powers, Mark D. Petersen, Robert Graves, Brad T. Aagaard, Annemarie S. Baltay Sundstrom, Nico Luco, Erin A. Wirth, Sanaz Rezaeian, Eric M. Thompson
By
Geologic Hazards Science Center

Unified Hazard Tool Unified Hazard Tool

Use this web application to obtain earthquake hazards data from the U.S. Hazard Model.
By
Natural Hazards Mission Area, Earthquake Hazards Program, Geologic Hazards Science Center

nshm-alaska-v2 nshm-alaska-v2

Software release of 2023 Alaska NSHM input files for use with nshmp-haz.
By
Geologic Hazards Science Center

nshm-hawaii-v2 nshm-hawaii-v2

National Seismic Hazard Model (NSHM) for the State of Hawaii. This model is intended for use with U.S. Geological Survey (USGS) hazard software nshmp-haz.
By
Natural Hazards Mission Area, Earthquake Hazards Program, Geologic Hazards Science Center

nshm-conus-v5 nshm-conus-v5

National Seismic Hazard Model (NSHM) for the conterminous U.S. This model is intended for use with U.S. Geological Survey (USGS) hazard software nshmp-haz. This model was last updated in 2018.
By
Natural Hazards Mission Area, Earthquake Hazards Program, Geologic Hazards Science Center

nshmp-haz-v2 nshmp-haz-v2

U.S. Geological Survey (USGS) National Seismic Hazard Model Project (NSHMP) codes for performing probabilistic seismic hazard (PSHA) and related analyses. These codes are intended for use with seismic hazard models developed by the NSHMP for the U.S. and its territories. This project includes a variety of command line applications and web service classes and relies on the nshmp-lib...
By
Natural Hazards Mission Area, Earthquake Hazards Program, Geologic Hazards Science Center, Supplemental Appropriations for Disaster Recovery Activities

nshmp-lib nshmp-lib

nshmp-lib is a USGS developed Java library that supports probabilistic seismic hazard (PSHA) and related analyses. This project includes all the code required to load, process and query USGS National Seismic Hazard Models (NSHMs). nshmp-lib is used by command line applications and web services found in the nshmp-haz project. See that project for running PSHA calculations.
By
Natural Hazards Mission Area, Earthquake Hazards Program, Geologic Hazards Science Center

nshm-fault-sections nshm-fault-sections

A repository of all geologic fault section data included in USGS National Seismic Hazard Models
By
Natural Hazards Mission Area, Earthquake Hazards Program, Geologic Hazards Science Center
Hazard map from the 2023 50-state update of the National Seismic Hazard Model Project

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.
By
Natural Hazards Mission Area, Earthquake Hazards Program, Earthquake Science Center, Geologic Hazards Science Center, Communications and Publishing
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...

Read Article
New USGS Model Shows Earthquake Hazard Probability for Hawaiian Islands

New USGS Model Shows Earthquake Hazard Probability for Hawaiian Islands

A new U.S. Geological Survey study indicates that the Hawaiian Islands, especially the Island of Hawaiʻi and neighboring islands with active volcanic...

Read Article
USGS provides update for the National Seismic Hazard Model

USGS provides update for the National Seismic Hazard Model

USGS experts recently released a study that incorporates the latest earthquake science findings into an update of the National Seismic Hazard Model...

Read Article
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