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  1. 2020 Crustal Deformation Modeling Workshop Report

    27 Jul 2022 | Contributor(s): Brad Aagaard, Sylvain Barbot, Brittany Erickson, Matthew Knepley, Mark Simons, Charles Williams

    Workshop report

  2. PyLith

    27 Oct 2021 | Software: Download | Contributor(s): Brad Aagaard (primary-developer), Charles A. Williams (primary-developer), Matthew Knepley (primary-developer)

    PyLith is a finite-element code for dynamic and quasistatic simulations of crustal deformation, primarily earthquakes and volcanoes. Binary packages are available for macOS and Linux. Detailed installation instructions for the binary packages are in the PyLith manual.

  3. Relax

    26 Oct 2021 | Software: Download | Contributor(s): Sylvain Barbot (primary-developer)

    Relax implements a semi-analytic Fourier-domain solver and equivalent body forces to compute quasi-static relaxation of stress perturbation.It is not an acronym, it's a motto!The open-source program Relax evaluates the displacement and stress in a half space with gravity due to...

  4. Virtual Quake

    26 Oct 2021 | Software: Download | Contributor(s): John M. Wilson, Kasey W. Schultz, Eric M. Heiein, Michael K. Sacks, John B. Rundle

    Virtual Quake (formerly Virtual California) is a boundary element code that performs simulations of fault systems based on stress interactions between fault elements to understand long term statistical behavior.

  5. SELEN

    25 Oct 2021 | Software: Download | Contributor(s): Giorgio Spada (primary-developer), Daniele Melini (primary-developer)

    SELEN: a program for solving the "Sea Level Equation.The open source program SELEN solves numerically the so-called "Sea Level Equation" (SLE) for a spherical, layered, non-rotating Earth with Maxwell viscoelastic rheology. The SLE is an integral equation that was introduced in...

  6. LithoMop

    22 Oct 2021 | Software: Download | Contributor(s): Charles A. Williams (primary-developer)

    LithoMop is a finite element code for the solution of the visco-elastic/plastic deformation that was designed for lithospheric modeling problems.A newer version of LithoMop, called PyLith, has been released by CIG.

  7. Responsibilities of Working Groups

    12 Oct 2021 | Documents | Contributor(s): Executive Committee, Science Steering Committee

    Roles and responsibilities of Working Groups.Approved 24 August 2021.

  8. Responsibilities of the SSC

    12 Oct 2021 | Documents | Contributor(s): Executive Committee, Science Steering Commitee

    Roles and responsibilities of the Science Steering Committee.Approved 24 August 2021.

  9. Responsibilities of the EC

    12 Oct 2021 | Documents | Contributor(s): Executive Committee, Science Steering Committee

    Describes the roles and responsibilities of the Executive Committee.Approved 24 August 2021

  10. Regional Scale Earthquake Hazard and Structural Risk Simulations

    01 Apr 2021 | Workshops | Contributor(s): Mamun Miah

    Regional Scale Earthquake Hazard and Structural Risk Simulations. September 18-22, 2017. Mamun Miah. 

  11. FORCE11 Software Citation Principles

    01 Apr 2021 | Workshops | Contributor(s): Lorraine Hwang

    FORCE11 Software Citation Principles. September 18-22, 2017. Lorraine Hwang. 

  12. Towards Structural Imaging Using Scattering Artifacts Detected in Ambient Field Correlations

    01 Apr 2021 | Workshops | Contributor(s): Lise Retailleau, Gregory Beroza

    Towards Structural Imaging Using Scattering Artifacts Detected in Ambient Field Correlations. September 18-22, 2017. Lise Retailleau, Gregory Beroza. 

  13. Salvus: A flexible open-source package for waveform modelling and inversion from laboratory to global scales

    01 Apr 2021 | Workshops | Contributor(s): Lion Krischer, Michael Afanasiev, Christian Boehm, Martin van Driel, Andreas Fichtner

    Salvus: A flexible open-source package for waveform modelling and inversion from laboratory to global scales. September 18-22, 2017. Lion Krischer, Michael Afanasiev, Christian Boehm, Martin van Driel, Andreas Fichtner. 

  14. 3D Dynamic Rupture Simulations along Dipping Faults, with a focus on the Wasatch Fault Zone, Utah

    01 Apr 2021 | Workshops | Contributor(s): Kyle Withers, Morgan Moschetti

    3D Dynamic Rupture Simulations along Dipping Faults, with a focus on the Wasatch Fault Zone, Utah. September 18-22, 2017. Kyle Withers. 

  15. Amplification of seismic waves in Nenana basin, central Alaska

    01 Apr 2021 | Workshops | Contributor(s): Kyle Smith, Carl Tape

    Amplification of seismic waves in Nenana basin, central Alaska. September 18-22, 2017. Kyle Smith, Carl Tape. 

  16. CIG Bylaws 2018

    30 Mar 2021 | Documents | Contributor(s): Staff

    Bylaws of Computational Infrastructure for Geodynamics (CIG). As amended by the Electorate, June 30, 2018. 

  17. Preliminary analysis of seismic anisotropy changes associated the Kaikoura earthquakes in New Zealand

    26 Mar 2021 | Workshops | Contributor(s): Kenny Graham, Martha K. Savage, Richard Arnold

    Preliminary analysis of seismic anisotropy changes associated the Kaikoura earthquakes in New Zealand. September 18-22, 2017. Kenny Graham, Martha K. Savage, Richard Arnold. 

  18. Assessing variations in shear wave splitting measurement due to scattered waves using simulated waveforms

    26 Mar 2021 | Workshops | Contributor(s): Kenny Graham, Martha K. Savage, Richard Arnold

    Assessing variations in shear wave splitting measurement due to scattered waves using simulated waveforms. September 18-22, 2017. Kenny Graham, Martha K. Savage, Richard Arnold. 

  19. Thermokarst-On-Demand: Observations from a Controlled Permafrost Warming Experiment

    26 Mar 2021 | Workshops | Contributor(s): Nate Lindsey, Anna Wagner, Shan Dou, Ian Ekblaw, Art Gelvin, Stephanie Saari, Todd Wood, Alex Morales, Craig Ulrich, Barry Freifeld, Tom Daley, Jonathan Ajo-Franklin

    Thermokarst-On-Demand: Observations from a Controlled Permafrost Warming Experiment. September 18-22, 2017. Nate Lindsey, Anna Wagner, Shan Dou, Ian Ekblaw, Art Gelvin, Stephanie Saari, Todd Wood, Alex Morales, Craig Ulrich, Barry Freifeld, Tom Daley, Jonathan Ajo-Franklin. 

  20. The spatial sensitivity of teleseismic Sp converted waves

    26 Mar 2021 | Workshops | Contributor(s): Nicholas J. Mancinelli, Karen M. Fischer

    The spatial sensitivity of teleseismic Sp converted waves. September 18-22, 2017. Nicholas J. Mancinelli, Karen M. Fischer. 

  21. 3D Simulations of Earthquakes on Parallel Offset Faults with Homogeneous Stress Conditions

    26 Mar 2021 | Workshops | Contributor(s): Kayla A. Kroll, Keith B. Richards-Dinger, James H. Dieterich, David D. Oglesby

    3D Simulations of Earthquakes on Parallel Offset Faults with Homogeneous Stress Conditions. September 18-22, 2017. Kayla A. Kroll, Keith B. Richards-Dinger, James H. Dieterich, David D. Oglesby. 

  22. Coseismic and postseismic velocity changes caused by the 2016 Mw 6.5 Meinong, Taiwan, Earthquake using Ambient Seismic Noise

    26 Mar 2021 | Workshops | Contributor(s): Po-Chin Tseng, Ruey-Juin Rau, Tzu-Ying Huang, Yuan-Cheng Gung

    Coseismic and postseismic velocity changes caused by the 2016 Mw 6.5 Meinong, Taiwan, Earthquake using Ambient Seismic Noise. September 18-22, 2017. Po-Chin Tseng, Ruey-Juin Rau, Tzu-Ying Huang, Yuan-Cheng Gung. 

  23. Imaging the Alaskan subduction zone with joint inversion of ambient noise and teleseismic surface waves

    26 Mar 2021 | Workshops | Contributor(s): Robert Martin-Short, Richard Allen, Robert Porritt

    Imaging the Alaskan subduction zone with joint inversion of ambient noise and teleseismic surface waves. September 18-22, 2017. Robert Martin-Short, Richard Allen, Robert Porritt. 

  24. Seismo-Acoustic Analyses of the DPRK Underground Nuclear Tests for the Estimation of Source Depth

    26 Mar 2021 | Workshops | Contributor(s): Jelle Assink, G. Averbuch, Pieter Smets, Läslo Evers

    Seismo-Acoustic Analyses of the DPRK Underground Nuclear Tests for the Estimation of Source Depth. September 18-22, 2017. Jelle Assink, G. Averbuch, Pieter Smets, Läslo Evers. 

  25. Comparison of magmatic and amagmatic rift zone kinematics using full moment tensor inversions of regional earthquakes

    26 Mar 2021 | Workshops | Contributor(s): Sarah J. Oliva, C.J. Ebinger, D. Shillington, J. Albaric, A. Deschamps, D. Keir, C. Drooff

    Comparison of magmatic and amagmatic rift zone kinematics using full moment tensor inversions of regional earthquakes. September 18-22, 2017. Sarah J. Oliva, C.J. Ebinger, D. Shillington, J. Albaric, A. Deschamps, D. Keir, C. Drooff.

  26. Large-N array observations of injection-induced seismicity in northern Oklahoma: the LASSO experiment

    26 Mar 2021 | Workshops | Contributor(s): Sara L. Dougherty, Elizabeth S. Cochran, Rebecca M. Harrington

    Large-N array observations of injection-induced seismicity in northern Oklahoma: the LASSO experiment.September 18-22, 2017. Sara L. Dougherty, Elizabeth S. Cochran, and Rebecca M. Harrington. 

  27. Spatiotemporal Relationship between Shallow Slow Slip and Repeating Earthquakes in the Northern Hikurangi Subduction Margin, New Zealand

    26 Mar 2021 | Workshops | Contributor(s): Heather Shaddox, Susan Schwartz, Erin Todd, Anne Sheehan, Jefferson Yarce, Jenny Nakai

    Spatiotemporal Relationship between Shallow Slow Slip and Repeating Earthquakes in the Northern Hikurangi Subduction Margin, New Zealand. September 18-22, 2017. Heather R Shaddox, Susan Y Schwartz, Erin K Todd, Anne F Sheehan, Jefferson Yarce, Jenny S Nakai.

  28. Detecting and Characterizing Activity on Land and at Sea

    26 Mar 2021 | Workshops | Contributor(s): Gabrielle Tepp

    Detecting and Characterizing Activity on Land and at Sea. September 18-22, 2017. Gabrielle Tepp. 

  29. Improving infrasonic location estimates for underground nuclear explosions

    26 Mar 2021 | Workshops | Contributor(s): Fransiska Dannemann, Philip Blom, Junghyun Park, Omar Marcillo, Brian Stump, Il-Young Che

    Improving infrasonic location estimates for underground nuclear explosions. September 18-22, 2017. Fransiska K Dannemann, Philip Blom, Junghyun Park, Omar Marcillo, Brian Stump, Il-Young Che.

  30. Wavefield simulations of earthquakes in southern Alaska for tomographic inversion

    26 Mar 2021 | Workshops | Contributor(s): Vipul Silwal, Carl Tape

    Wavefield simulations of earthquakes in southern Alaska for tomographic inversion. September 18-22, 2017. Vipul Silwal. 

  31. Seismo-Acoustic Coupled Signals - Epicentral and Secondary Sources of Infrasound

    26 Mar 2021 | Workshops | Contributor(s): Shahar Shani-Kadmiel, Jelle D. Assink, Pieter S. M. Smets, Läslo G. Evers

    Seismo-Acoustic Coupled Signals - Epicentral and Secondary Sources of Infrasound. September 18-22, 2017. Shahar Shani-Kadmiel, Jelle D. Assink, Pieter S. M. Smets, Läslo G. Evers. 

  32. High-resolution seismic velocity structure of Makushin Volcano, Alaska

    26 Mar 2021 | Workshops | Contributor(s): Federica Lanza, Clifford Thurber, Ellen Syracuse, Abhijit Ghosh, John Power

    High-resolution seismic velocity structure of Makushin Volcano, Alaska. September 18-22, 2019. Federica Lanza, Clifford H. Thurber, Ellen M. Syracuse, Abhijit Ghosh, John Power.

  33. A Framework of Ground Truth Event Locations Across Iran from a Two Tiered Multi-Event Relocation Approach

    26 Mar 2021 | Workshops | Contributor(s): Ezgi Karasozen, Eric Bergman, Edwin Nissen

    A Framework of Ground Truth Event Locations Across Iran from a Two Tiered Multi-Event Relocation Approach. September 18-22, 2017. Ezgi Karasozen, Eric Bergman, Edwin Nissen.  

  34. Seismic anisotropy beneath eastern North America: laterally variable and layered?

    26 Mar 2021 | Workshops | Contributor(s): Xiaoran Chen, Yiran Li, Vadim Levin

    Seismic anisotropy beneath eastern North America: laterally variable and layered?. September 18-22, 2017. Xiaoran Chen. 

  35. Characteristics of Broadband Seismic Noise in Taiwan

    26 Mar 2021 | Workshops | Contributor(s): Ching-Wei Chen, Ruey-Juin Rau

    Characteristics of Broadband Seismic Noise in Taiwan. September 18-22, 2017. Ching-Wei Chen, Ruey-Juin Rau. 

  36. Upper crustal structure of Santorini Volcano and the surrounding region from dense, active source seismic data

    26 Mar 2021 | Workshops | Contributor(s): Ben Heath

    Upper crustal structure of Santorini Volcano and the surrounding region from dense, active source seismic data. September 18-22, 2017. Ben Heath. 

  37. Broadband 3D SW4 Simulations of an M 7.0 Hayward Fault Scenario Earthquake

    26 Mar 2021 | Workshops | Contributor(s): Arthur Rodgers, Anders Petersson, Arben Pitarka, Bjorn Sjogreen, David McCallen

    Broadband 3D SW4 Simulations of an M 7.0 Hayward Fault Scenario Earthquake. September 18-22, 2017. Artie Rogers, N. Anders Petersson, Arben Pitarka, and Bjorn Sjogreen, David B. McCallen. 

  38. Source Analysis of Underground Chemical Explosions from the Source Physics Experiment

    26 Mar 2021 | Workshops | Contributor(s): Andrea Chiang, Arben Pitarka, Sean Ford

    Source Analysis of Underground Chemical Explosions from the Source Physics Experiment. September 18-22, 2017. Andrea Chiang, Arben Pitarka, Sean Ford.

  39. Microseismic event relocation based on PageRank linkage at the Newberry Volcano Geothermal Site

    26 Mar 2021 | Workshops | Contributor(s): Ana Aguiar, Stephen Myers

    Microseismic event relocation based on PageRank linkage at the Newberry Volcano Geothermal Site. September 18-22, 2017. Ana C. Aguiar, Stephen C. Myers. 

  40. Global Full-Waveform Inversion: Towards Exascale Imaging of the Earth's Interior

    26 Mar 2021 | Workshops | Contributor(s): Ebru Bozdag

    Global Full-Waveform Inversion: Towards Exascale Imaging of the Earth's Interior. September 18-22, 2017. Ebru Bozdag. 

  41. Simulating seismic wave propagation with SW4

    26 Mar 2021 | Workshops | Contributor(s): Anders Petersson

    Simulating seismic wave propagation with SW4. September 18-22, 2017. N. Anders Petersson. 

  42. Fundamentals of numerical methods

    26 Mar 2021 | Workshops | Contributor(s): Carene Larmat

    Fundamentals of numerical methods. September 18-22, 2017. Carene Larmat. 

  43. CIG Business Meeting 2007 Presentations

    07 Feb 2021 | Documents | Contributor(s): Staff

    PDF presentations given at the CIG Business Meeting on December 11, 2007, in San Francisco during the annual AGU Meeting.

  44. CIG Business Meeting 2009 Presentations

    07 Feb 2021 | Documents | Contributor(s): Staff

    CIG Business Meeting 2009 Presentation.Movie Files and Other Supporting Material.Ehler.

  45. CIG Business Meeting 2008 Presentations

    07 Feb 2021 | Documents | Contributor(s): Staff

    CIG Business Meeting 2008 Presentations.December 16, 2008.CIG Business Meeting: The Future of CIG, presented by Marc Spiegelmann (Columbia), EC Chair.CIG-II, presented by Louise Kellogg (UC Davis), SSC Chair.

  46. SSC May 2008 Meeting Presentations

    07 Feb 2021 | Documents | Contributor(s): Staff

    Presentations from the SSC Meeting held at CIG on May 29-30, 2008.

  47. Expanding Computational Infrastructure: The First 5 Years of CIG

    07 Feb 2021 | Documents | Contributor(s): Staff

    Expanding Computational Infrastructure: The First 5 Years of CIG.Parts 1 & 2.

  48. 2013 CIG Strategic Plan & Annual Report

    07 Feb 2021 | Documents | Contributor(s): Staff

    2013-2014 Strategic Plan & Annual Report.June 2013.

  49. 2009 CIG Annual Report

    07 Feb 2021 | Documents | Contributor(s): Staff

    Annual Report:Aug. 31, 2009. 

  50. 2007 CIG Five-Year Strategic Plan

    07 Feb 2021 | Documents | Contributor(s): Staff

    Five-Year Strategic Plan: Sept. 1, 2007 to Aug. 31, 2012.