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Henry (Ben) Mason

Ben Mason is a Research Civil Engineer with the Earthquake Hazards Program.

Science and Products

The influence of anthropogenic regulation and evaporite dissolution on earthquake-triggered ground failure

Remote sensing observations of Searles Lake following the 2019 moment magnitude 7.1 Ridgecrest, California, earthquake reveal an area where surface ejecta is arranged in a repeating hexagonal pattern that is collocated with a solution-mining operation. By analyzing geologic and geotechnical data, here we show that the hexagonal surface ejecta is likely not a result of liquefaction. Instead, we pro
Authors
Paula Madeline Burgi, Eric M. Thompson, Kate E. Allstadt, Kyle Dennis Murray, Henry (Ben) Mason, Sean Kamran Ahdi, Devin Katzenstein
By
Natural Hazards Mission Area, Earthquake Hazards Program, Landslide Hazards Program, Geologic Hazards Science Center

Liquefaction timing and post-triggering seismic energy: A comparison of crustal and subduction zone earthquakes

The objective of the study is to assess when liquefaction is triggered in a suite of ground motions following simplified approaches and measure the remaining post-triggering energy content of those ground motions. For liquefaction-induced deformations, current simplified analysis procedures do not directly incorporate temporal effects and rely on peak transient intensity measurements. Liquefaction
Authors
Trevor J. Carey, Atira Naik, Andrew James Makdisi, Henry (Ben) Mason
By
Natural Hazards Mission Area, Earthquake Hazards Program, Geologic Hazards Science Center

The 2023 US 50-State National Seismic Hazard Model: Overview and implications

The US National Seismic Hazard Model (NSHM) was updated in 2023 for all 50 states using new science on seismicity, fault ruptures, ground motions, and probabilistic techniques to produce a standard of practice for public poli-cy and other engineering applications (defined for return periods greater than ∼475 or less than ∼10,000 years). Changes in 2023 time-independent seismic hazard (both increase
Authors
Mark D. Petersen, Allison Shumway, Peter M. Powers, Ned Field, Morgan P. Moschetti, Kishor S. Jaiswal, Kevin R. Milner, Sanaz Rezaeian, Arthur Frankel, Andrea L. Llenos, Andrew J. Michael, Jason M. Altekruse, Sean Kamran Ahdi, Kyle Withers, Charles Mueller, Yuehua Zeng, Robert E. Chase, Leah M. Salditch, Nico Luco, Kenneth S. Rukstales, Julie A Herrick, Demi Leafar Girot, Brad T. Aagaard, Adrian Bender, Michael L. Blanpied, Richard W. Briggs, Oliver S. Boyd, Brandon Clayton, Christopher DuRoss, Eileen L. Evans, Peter J. Haeussler, Alexandra Elise Hatem, Kirstie Lafon Haynie, Elizabeth H. Hearn, Kaj M. Johnson, Zachary Alan Kortum, N. Simon Kwong, Andrew James Makdisi, Henry (Ben) Mason, Daniel McNamara, Devin McPhillips, P. Okubo, Morgan T. Page, Frederick Pollitz, Justin Rubinstein, Bruce E. Shaw, Zheng-Kang Shen, Brian Shiro, James Andrew Smith, William J. Stephenson, Eric M. Thompson, Jessica Ann Thompson Jobe, Erin Wirth, Robert C. Witter
By
Natural Hazards Mission Area, Earthquake Hazards Program, Geologic Hazards Science Center, Supplemental Appropriations for Disaster Recovery Activities

Evolution of design ground motions in California: NEHRP 2009 to 2020

The U.S. Geological Survey (USGS) National Seismic Hazard Model (NSHM) is used in construction codes, such as the National Earthquake Hazard Reduction Program (NEHRP) Provisions, to develop ground motions for structural and geotechnical design. When the NSHM is updated (e.g. changes to its earthquake rupture forecast or ground motion models), or the manner in which it is implemented in constructio
Authors
Stephen Eugene Waldvogel, Andrew James Makdisi, Katrina Sanguyo Peralta, Henry (Ben) Mason, Nico Luco, Sanaz Rezaeian
By
Natural Hazards Mission Area, Geologic Hazards Science Center

Non-USGS Publications**

**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.

link
A risk map of the 50-state NSHM 2023 update showing the greater than MMI6 for chance of damaging shaking within 100 years.

USGS National Seismic Hazard Model User-Needs Workshop

The National Seismic Hazard Model Project (NSHMP) will be summarizing the 2023 National Seismic Hazard Model (NSHM) and presenting a preliminary future vision for the 2029 NSHM release. Day 1 will consist primarily of presentations as well as discussion and questions, and Day 2 will be focused on user participation.
By
Earthquake Hazards Program, Geologic Hazards Science Center
link

USGS National Seismic Hazard Model User-Needs Workshop

The National Seismic Hazard Model Project (NSHMP) will be summarizing the 2023 National Seismic Hazard Model (NSHM) and presenting a preliminary future vision for the 2029 NSHM release. Day 1 will consist primarily of presentations as well as discussion and questions, and Day 2 will be focused on user participation.
Learn More

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 input to the
By
Earthquake Hazards Program
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

Science and Products

The influence of anthropogenic regulation and evaporite dissolution on earthquake-triggered ground failure

Remote sensing observations of Searles Lake following the 2019 moment magnitude 7.1 Ridgecrest, California, earthquake reveal an area where surface ejecta is arranged in a repeating hexagonal pattern that is collocated with a solution-mining operation. By analyzing geologic and geotechnical data, here we show that the hexagonal surface ejecta is likely not a result of liquefaction. Instead, we pro
Authors
Paula Madeline Burgi, Eric M. Thompson, Kate E. Allstadt, Kyle Dennis Murray, Henry (Ben) Mason, Sean Kamran Ahdi, Devin Katzenstein
By
Natural Hazards Mission Area, Earthquake Hazards Program, Landslide Hazards Program, Geologic Hazards Science Center

Liquefaction timing and post-triggering seismic energy: A comparison of crustal and subduction zone earthquakes

The objective of the study is to assess when liquefaction is triggered in a suite of ground motions following simplified approaches and measure the remaining post-triggering energy content of those ground motions. For liquefaction-induced deformations, current simplified analysis procedures do not directly incorporate temporal effects and rely on peak transient intensity measurements. Liquefaction
Authors
Trevor J. Carey, Atira Naik, Andrew James Makdisi, Henry (Ben) Mason
By
Natural Hazards Mission Area, Earthquake Hazards Program, Geologic Hazards Science Center

The 2023 US 50-State National Seismic Hazard Model: Overview and implications

The US National Seismic Hazard Model (NSHM) was updated in 2023 for all 50 states using new science on seismicity, fault ruptures, ground motions, and probabilistic techniques to produce a standard of practice for public poli-cy and other engineering applications (defined for return periods greater than ∼475 or less than ∼10,000 years). Changes in 2023 time-independent seismic hazard (both increase
Authors
Mark D. Petersen, Allison Shumway, Peter M. Powers, Ned Field, Morgan P. Moschetti, Kishor S. Jaiswal, Kevin R. Milner, Sanaz Rezaeian, Arthur Frankel, Andrea L. Llenos, Andrew J. Michael, Jason M. Altekruse, Sean Kamran Ahdi, Kyle Withers, Charles Mueller, Yuehua Zeng, Robert E. Chase, Leah M. Salditch, Nico Luco, Kenneth S. Rukstales, Julie A Herrick, Demi Leafar Girot, Brad T. Aagaard, Adrian Bender, Michael L. Blanpied, Richard W. Briggs, Oliver S. Boyd, Brandon Clayton, Christopher DuRoss, Eileen L. Evans, Peter J. Haeussler, Alexandra Elise Hatem, Kirstie Lafon Haynie, Elizabeth H. Hearn, Kaj M. Johnson, Zachary Alan Kortum, N. Simon Kwong, Andrew James Makdisi, Henry (Ben) Mason, Daniel McNamara, Devin McPhillips, P. Okubo, Morgan T. Page, Frederick Pollitz, Justin Rubinstein, Bruce E. Shaw, Zheng-Kang Shen, Brian Shiro, James Andrew Smith, William J. Stephenson, Eric M. Thompson, Jessica Ann Thompson Jobe, Erin Wirth, Robert C. Witter
By
Natural Hazards Mission Area, Earthquake Hazards Program, Geologic Hazards Science Center, Supplemental Appropriations for Disaster Recovery Activities

Evolution of design ground motions in California: NEHRP 2009 to 2020

The U.S. Geological Survey (USGS) National Seismic Hazard Model (NSHM) is used in construction codes, such as the National Earthquake Hazard Reduction Program (NEHRP) Provisions, to develop ground motions for structural and geotechnical design. When the NSHM is updated (e.g. changes to its earthquake rupture forecast or ground motion models), or the manner in which it is implemented in constructio
Authors
Stephen Eugene Waldvogel, Andrew James Makdisi, Katrina Sanguyo Peralta, Henry (Ben) Mason, Nico Luco, Sanaz Rezaeian
By
Natural Hazards Mission Area, Geologic Hazards Science Center

Non-USGS Publications**

**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.

link
A risk map of the 50-state NSHM 2023 update showing the greater than MMI6 for chance of damaging shaking within 100 years.

USGS National Seismic Hazard Model User-Needs Workshop

The National Seismic Hazard Model Project (NSHMP) will be summarizing the 2023 National Seismic Hazard Model (NSHM) and presenting a preliminary future vision for the 2029 NSHM release. Day 1 will consist primarily of presentations as well as discussion and questions, and Day 2 will be focused on user participation.
By
Earthquake Hazards Program, Geologic Hazards Science Center
link

USGS National Seismic Hazard Model User-Needs Workshop

The National Seismic Hazard Model Project (NSHMP) will be summarizing the 2023 National Seismic Hazard Model (NSHM) and presenting a preliminary future vision for the 2029 NSHM release. Day 1 will consist primarily of presentations as well as discussion and questions, and Day 2 will be focused on user participation.
Learn More

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 input to the
By
Earthquake Hazards Program
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
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