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  1. 2022 Mainshock and aftershock sequence simulations in a nonplanar fault network

    19 May 2022 | Webinars | Contributor(s): So Ozawa, Ryosuke Ando

    Aftershocks seem to be located along the trace of the mainshock fault; however, due to the location error, we do not know their exact location relative to the mainshock fault. Here, we hypothesize that most aftershocks occur on small subsidiary faults instead of the mainshock fault, and they...

  2. 2022 Poroelastic Implementation in PyLith: Gateway to Multiphysics

    13 May 2022 | Webinars | Contributor(s): Robert L Walker

    Thursday May 12, 2022 @ 2P PDT Poroelastic Implementation in PyLith: Gateway to Multiphysics Robert Walker, SUNY Buffalo PyLith, a community, open-source code (https://geodynamics.org/resources/pylith) for modeling quasi-static and dynamic crustal deformation with an emphasis on earthquake...

  3. Advancing Solid Earth System Science Through High-Performance Computing

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

    Advancing Solid Earth System Science Through High-Performance Computing.June 2014.

  4. 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.

  5. 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.

  6. CIG Business Meeting 2009 Presentations

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

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

  7. CIG ByLaws 2012

    29 Jan 2021 | Documents | Contributor(s): Staff

    By-Laws of Computational Infrastructure for Geodynamics (CIG).As amended by the Electorate, January 9, 2012.

  8. 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. 

  9. CIG II Proposal

    29 Jan 2021 | Documents | Contributor(s): Staff

    Geoinformatics:Facility Support:Computational Infrastructure for Geodynamics.July 8, 2009.

  10. CIG III Proposal

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

    Computational Infrastructure for Geodynamics 2016-2020. Submitted to NSF July 1, 2015.

  11. 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.

  12. Fault strength evolution during the seismic cycle: Insights from the laboratory

    10 Mar 2023 | Webinars | Contributor(s): John Bedford

    Geophysical evidence suggests that some faults are frictionally strong, in agreement with laboratory measurements of quasi-static frictional strength (μ ≈ 0.6-0.8) for many crustal materials; whereas others studies have found that some faults are weak when compared to laboratory friction...

  13. 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.

  14. 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. Use the PyLith...

  15. 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...

  16. 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

  17. 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.

  18. 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.

  19. 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...

  20. 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.

  21. The Path to Petascale Computing in Geodynamics

    29 Jan 2021 | Documents | Contributor(s): Staff

    The Path to Petascale Computing in Geodynamics. A report by the Science Steering Committee.Computational Infrastructure for Geodynamics (CIG). December 5, 2006.

  22. 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.