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  1. CIG ByLaws 2012

    29 Jan 2021 | Contributor(s): Staff

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

  2. CIG Bylaws 2018

    30 Mar 2021 | Contributor(s): Staff

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

  3. CIG II Proposal

    29 Jan 2021 | Contributor(s): Staff

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

  4. CIG III Proposal

    05 Feb 2021 | Contributor(s): Staff

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

  5. Constraints on slow slip events from geodetic observations

    02 Apr 2021 | Contributor(s): David Schmidt, Haiying Gao

    Constraints on slow slip events from geodetic observations. June 18-22, 2012. David Schmidt, Haiying Gao. 

  6. Crustal Deformation Modeling Tutorial: Overview of CUBIT

    02 Apr 2021 | Contributor(s): Brad Aagaard, Rowena Lohman, Charles Williams, Matthew Knepley

    Crustal Deformation Modeling Tutorial: Overview of CUBIT. June 18-22, 2012. Brad Aagaard, Rowena Lohman, Charles Williams, Matthew Knepley. 

  7. Crustal Deformation Modeling Tutorial: PyLith/CUBIT: 2-D subduction zone with coseismic and interseismic deformation

    02 Apr 2021 | Contributor(s): Brad Aagaard, Charles Williams, Matthew Knepley

    Crustal Deformation Modeling Tutorial: PyLith/CUBIT: 2-D subduction zone with coseismic and interseismic deformation. June 18-22, 2012. Brad Aagaard, Charles Williams, Matthew Knepley. 

  8. Crustal Deformation Modeling Tutorial: PyLith: Introduction to Dynamic Spontaneous Rupture

    02 Apr 2021 | Contributor(s): Brad Aagaard, Matthew Knepley, Charles Williams

    Crustal Deformation Modeling Tutorial: PyLith: Introduction to Dynamic Spontaneous Rupture. June 18-22, 2012. Brad Aagaard, Matthew Knepley, Charles Williams. 

  9. Crustal Deformation Modeling Tutorial: PyLith: Introduction to Fault Friction

    02 Apr 2021 | Contributor(s): Brad Aagaard, Matthew Knepley, Charles Williams

    Crustal Deformation Modeling Tutorial: PyLith: Introduction to Fault Friction. June 18-22, 2012. Brad Aagaard, Matthew Knepley, Charles Williams.

  10. Crustal Deformation Modeling Tutorial: PyLith: Modeling Afterslip with Friction

    02 Apr 2021 | Contributor(s): Brad Aagaard, Matthew Knepley, Charles Williams

    Crustal Deformation Modeling Tutorial: PyLith: Modeling Afterslip with Friction. June 18-22, 2012. Brad Aagaard, Matthew Knepley, Charles Williams. 

  11. Crust‐mantle interactions of the Escalante anomaly, Colorado Plateau

    02 Apr 2021 | Contributor(s): Jolante van Wijk

    Crust‐mantle interactions of the Escalante anomaly, Colorado Plateau. June 18-22, 2012. Jolante van Wijk. 

  12. CUBIT: 3-D Meshing with Nonplanar Surfaces

    02 Apr 2021 | Contributor(s): Charles Williams, Brad Aagaard, Matt Knepley

    CUBIT: 3-D Meshing with Nonplanar Surfaces. June 18-22, 2012. Charles Williams, Brad Aagaard, Matt Knepley. 

  13. CUBIT: Examples of 3-D meshing

    02 Apr 2021 | Contributor(s): Brad Aagaard

    CUBIT: Examples of 3-D meshing. June 18-22, 2012. Brad Aagaard. 

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

    07 Feb 2021 | Contributor(s): Staff

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

  15. Fault slip rates, distributed deformation rates, and long-term seismicity estimated with kinematic F-E program NeoKinema

    02 Apr 2021 | Contributor(s): Peter Bird

    Fault slip rates, distributed deformation rates, and long-term seismicity estimated with kinematic F-E program NeoKinema. June 18-22, 2012. Peter Bird. 

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

    10 Mar 2023 | 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...

  17. FLEXWIN

    28 Oct 2021 | Software: Download | Contributor(s): Alessia Maggi

    The FLEXWIN software package automates the time-window selection problem for seismologists. It operates on pairs of observed and synthetic single component seismograms, defining windows that cover as much of a given seismogram as possible, while avoiding portions of the waveform that are...

  18. Geodetic Source Inversion Validation

    02 Apr 2021 | Workshops | Contributor(s): Rowena Lohman

    Geodetic Source Inversion Validation. June 18-22, 2012. Rowena Lohman. 

  19. Green's Functions: Inverting Geodetic Data for Fault Slip with 2-D Earth Structure

    02 Apr 2021 | Workshops | Contributor(s): Charles Williams, Brad Aagaard, Matt Knepley

    Green's Functions: Inverting Geodetic Data for Fault Slip with 2-D Earth Structure. June 18-22, 2012. Charles Williams, Brad Aagaard, Matt Knepley. 

  20. Interpreting interseismic observations with elastic block models

    02 Apr 2021 | Workshops | Contributor(s): Jack Loveless, Brendan Meade

    Interpreting interseismic observations with elastic block models. June 18-22, 2012. Jack Loveless, Brendan Meade. 

  21. IRIS Short Course August 2015

    19 Dec 2020 | Workshops | Contributor(s): Lion Krischer

    ObsPy  A very short introduction to Obspy developed for the IRIS-EarthScope Short Course.

  22. Megathrust friction in the 2010 Maule earthquake area in relation to forearc morphology and mechanical stability, and to earthquake rupture dynamics

    02 Apr 2021 | Workshops | Contributor(s): Nadaya Cubas, J.P. Avouac, N. Lapusta, Y. Leroy, P. Souloumiac

    Megathrust friction in the 2010 Maule earthquake area in relation to forearc morphology and mechanical stability, and to earthquake rupture dynamics. June 18-22, 2012. Nadaya Cubas, J.P. Avouac, N. Lapusta. 

  23. Mineos

    28 Oct 2021 | Software: Download | Contributor(s): Guy Masters (primary-developer), John Woodhouse (primary-developer), Freeman Gilbert (primary-developer), Michael Ritzwoller (primary-developer), Misha Barmine, Sue Kientz

    Mineos computes synthetic seismograms in a spherically symmetric non-rotating Earth by summing normal modes.Attenuation, gravity and transversal anisotropy effects may be optionally taken into account. The package computes mode eigenfrequencies and eigenfunctions, Green's functions and...

  24. Overview of PyLith

    02 Apr 2021 | Workshops | Contributor(s): Charles Williams, Brad Aagaard, Matthew Knepley

    Overview of PyLith. June 18-22, 2012. Charles Williams, Brad Aagaard, Matthew Knepley. 

  25. Relax: Semi-analytic Fourier-domain solver and equivalent body forces for quasi-static relaxation of stress perturbation

    02 Apr 2021 | Workshops | Contributor(s): Sylvain Barbot

    Relax: Semi-analytic Fourier-domain solver and equivalent body forces for quasi-static relaxation of stress perturbation. June 18-22, 2012. Sylvain Barbot. 

  26. 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

  27. 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.

  28. 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.

  29. Scientific issues raised by using GPS data to estimate fault slip rates

    02 Apr 2021 | Workshops | Contributor(s): Kaj Johnson, Bob Simpson, Jim Savage, Wayne Thatcher

    Scientific issues raised by using GPS data to estimate fault slip rates. June 18-22, 2012. Kaj Johnson & UCERF3/GPS Group, Bob Simpson, Jim Savage, Wayne Thatcher. 

  30. SEISMIC_CPML

    28 Oct 2021 | Software: Download | Contributor(s): Dimitri Komatitsch, Roland Martin

    SEISMIC_CPML is a set of eleven open-source Fortran90 programs to solve the two-dimensional or three-dimensional isotropic or anisotropic elastic, viscoelastic or poroelastic wave equation using a finite-difference method with Convolutional or Auxiliary Perfectly Matched Layer (C-PML or...

  31. Slow slip events simulated using a friction law with a velocity-weakening to -strengthening transition

    02 Apr 2021 | Workshops | Contributor(s): Jessica Hawthorne, Allan Rubin

    Slow slip events simulated using a friction law with a velocity-weakening to -strengthening transition. June 18-22, 2012. Jessica Hawthorne, Allan Rubin. 

  32. SPECFEM1D

    29 Oct 2021 | Software: Download | Contributor(s): SPECFEM Development Team

    SPECFEM1D simulates seismic wave propagation in a one-dimensional heterogeneous medium. It is a small code that allows users to learn how a spectral-element program is written.See specfem.org.

  33. SPECFEM2D

    29 Oct 2021 | Software: Download | Contributor(s): Dimitri Komatitsch (primary-developer), Jean-Pierre Vilotte (primary-developer), Daniel Peter (primary-developer), SPECFEM Software Development Team

    SPECFEM2D simulates forward and adjoint seismic wave propagation in two-dimensional acoustic, (an)elastic, poroelastic or coupled acoustic-(an)elastic-poroelastic media, with Convolution PML absorbing conditions.Meshing is based for instance upon Gmsh, Cubit, GiD or a...

  34. SPECFEM3D Cartesian

    30 Oct 2021 | Software: Download | Contributor(s): Dimitri Komatitsch (primary-developer), Jean-Pierre Vilotte (primary-developer), Jeroen Tromp (primary-developer), Daniel Peter (primary-developer), SPECFEM Development Team

    SPECFEM3D Cartesian simulates acoustic (fluid), elastic (solid), coupled acoustic/elastic, poroelastic or seismic wave propagation in any type of conforming mesh of hexahedra (structured or not.) It can, for instance, model seismic waves propagating in sedimentary basins or any other regional...

  35. SPECFEM3D GLOBE

    30 Oct 2021 | Software: Download | Contributor(s): Dimitri Komatitsch (primary-developer), Jean-Pierre Vilotte, Jeroen Tromp (primary-developer), Daniel Peter (primary-developer), SPECFEM Development Team

    SPECFEM3D_GLOBE simulates global and regional (continental-scale) seismic wave propagation.Effects due to lateral variations in compressional-wave speed, shear-wave speed, density, a 3D crustal model, ellipticity, topography and bathymetry, the oceans, rotation, and self-gravitation are all...

  36. SPECFEM3D_GEOTECH

    29 Oct 2021 | Software: Download | Contributor(s): Hom Nath Gharti, Dimitri Komatitsch, Leah Langer, Roland Martin, Voker Oye, Jeroen Tromp, Uno Vaaland, Zhenshen Yan

    SPECFEM3D_GEOTECH is an open-source command-driven software for 3D slope stability analysis and simulation of 3D multistage excavation based on the spectral-element method.SPECFEM3D_GEOTECH is a free and open-source command-driven software for 3D slope stability analysis (for more details see...

  37. 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.

  38. SW4

    29 Oct 2021 | Software: Download | Contributor(s): N. Anders Petersson, Bjorn Sjögreen, Houjun Tang, Ramesh Pankajakshan

    SW4 implements substantial capabilities for 3-D seismic modeling, with a free surface condition on the top boundary, absorbing super-grid conditions on the far-field boundaries, and an arbitrary number of point force and/or point moment tensor source terms. Each source time function can have one...

  39. TauP

    29 Feb 2024 | Software: Download | Contributor(s): H. Philip Crotwell (primary-developer), Thomas J. Owens

    The TauP Toolkit is a seismic travel time calculator. In addition to travel times, it can calculate derivative information such as ray paths through the earth, pierce and turning points. It handles many types of velocity models and can calculate times for virtually any seismic phase with a...

  40. The nucleation of a laboratory earthquake: Implications for foreshocks and minimum earthquake size

    02 Apr 2021 | Workshops | Contributor(s): Greg McLaskey, Brian Kilgore, Nick Beeler, Dave Lockner

    The nucleation of a laboratory earthquake: Implications for foreshocks and minimum earthquake size. June 18-22, 2012. Greg McLaskey, Brian Kilgore, Nick Beeler, Dave Lockner. 

  41. 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.

  42. Tutorial - 2017 CIG-LLNL Computational Seismology Workshop

    19 Dec 2020 | Software: Download | Contributor(s): Lion Krischer

    ObsPy.  A series of 8 notebooks developed for the September 18-22. 2017 CIG-LLNL Computational Seismology Workshop  

  43. Understanding slip on oceanic transform faults through observations from the lab to the fault scale

    02 Apr 2021 | Workshops | Contributor(s): Margaret Boettcher

    Understanding slip on oceanic transform faults through observations from the lab to the fault scale. June 18-22, 2012. Margaret Boettcher. 

  44. Using PETSc Solvers in PyLith

    02 Apr 2021 | Workshops | Contributor(s): Matthew Knepley, Brad Aagaard, Charles Williams

    Using PETSc Solvers in PyLith. June 18-22, 2012. Matthew Knepley, Brad Aagaard, Charles Williams.