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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.
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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...
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FORCE11 Software Citation Principles
01 Apr 2021 | Workshops | Contributor(s): Lorraine Hwang
FORCE11 Software Citation Principles. September 18-22, 2017. Lorraine Hwang.
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Fundamentals of numerical methods
26 Mar 2021 | Workshops | Contributor(s): Carene Larmat
Fundamentals of numerical methods. September 18-22, 2017. Carene Larmat.
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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.
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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.
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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.
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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.
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Introduction to running ASPECT in a Jupyter notebook
19 Dec 2020 | Software: Download | Contributor(s): Lorraine Hwang, Ian Rose, ASPECT Community
ASPECT. Introduction to running ASPECT in a Jupyter notebook.See the Wiki pages for instructions on github.Join the ASPECT forum to get help running the code.
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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.
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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.
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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.
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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.
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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...
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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.
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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.
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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.
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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...
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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
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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.
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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.
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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.
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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.
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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...
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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.
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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.
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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...
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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.
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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.
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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.
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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.
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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...
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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...
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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...
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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...
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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.
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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...
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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...
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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.
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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.
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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.
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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.
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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
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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.
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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.
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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.