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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...
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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...
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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...
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2022 Energy transfer among flow and magnetic fields with different equatorial symmetry during the dipole reversal in a geodynamo simulation
17 Feb 2022 | Webinars | Contributor(s): Takumi Kera, Hiroaki Matsui, Masaki Matsushima, Yuto Katoh
The geomagnetic field has reversed its polarity, and some numerical dynamos have suggested that anti-symmetric flow with respect to the equator plays a role in reversals. Olson et al., (2004) suggested that the equatorial antisymmetric flow is temporarily strengthened, and transports a locally...
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2021 SMOREs Introduction
02 Nov 2021 | Webinars | Contributor(s): John Naliboff
2021 SMOREs ShowcaseJohn Naliboff, New Mexico Tech
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2021 Interactions between Lithospheric Instabilities and Formation of Mantle Plumes in Venus
02 Nov 2021 | Webinars | Contributor(s): Hiva Mohammadzadeh
2021 SMOREs ShowcaseHiva Mohammadzadeh, Los Angeles Pierce College
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2021 Early Earth Influence of Radiogenic Heating on Mid-Ocean Ridge Depths and Seafloor Subsidence
02 Nov 2021 | Webinars | Contributor(s): Keneni Godana
2021 SMOREs ShowcaseKeneni Godana, University of Illinois at Chicago
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2021 Bayesian Uncertainty Quantification of Subduction Zone Rheology from the Geoid
02 Nov 2021 | Webinars | Contributor(s): Elena Ehrlich
2021 SMOREs ShowcaseElena Ehrlich, North Carolina State University
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2021 As Above So Below: A Simulation of the Continental Lithosphere and LLSVPs as Thermal Insulators Using ASPECT
02 Nov 2021 | Webinars | Contributor(s): Dante Hickey
2021 SMOREs ShowcaseDante Hickey, Reed College
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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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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 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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2020 Numerical models of lower crustal flow explain Yellowstone's "tectonic parabola"
07 Oct 2021 | Webinars | Contributor(s): Jonathan Perry-Houts
Several hypotheses exist for the origin of the seismically active region of high topography surrounding the Yellowstone hotspot track. Among these is the idea that a dense mid-crustal sill has driven viscous lower crust away from the hotspot track, producing crustal thinning/subsidence in the...
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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.
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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.
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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.
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Crust‐mantle interactions of the Escalante anomaly, Colorado Plateau
02 Apr 2021 | Workshops | Contributor(s): Jolante van Wijk
Crust‐mantle interactions of the Escalante anomaly, Colorado Plateau. June 18-22, 2012. Jolante van Wijk.
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Geodetic Source Inversion Validation
02 Apr 2021 | Workshops | Contributor(s): Rowena Lohman
Geodetic Source Inversion Validation. June 18-22, 2012. Rowena Lohman.
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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.
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Constraints on slow slip events from geodetic observations
02 Apr 2021 | Workshops | Contributor(s): David Schmidt, Haiying Gao
Constraints on slow slip events from geodetic observations. June 18-22, 2012. David Schmidt, Haiying Gao.
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Bayesian Earthquake Modeling
02 Apr 2021 | Workshops | Contributor(s): Sarah Minson, Mark Simons, James L. Beck, Junle Jiang, Fransisco H. Ortega, Asaf Inbal, Susan E. Owen, Anthony Sladen
Bayesian Earthquake Modeling. June 18-22, 2012. Sarah Minson.
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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.
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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.
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Fault slip rates, distributed deformation rates, and long-term seismicity estimated with kinematic F-E program NeoKinema
02 Apr 2021 | Workshops | 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.
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CUBIT: Examples of 3-D meshing
02 Apr 2021 | Workshops | Contributor(s): Brad Aagaard
CUBIT: Examples of 3-D meshing. June 18-22, 2012. Brad Aagaard.
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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.
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Crustal Deformation Modeling Tutorial: PyLith: Introduction to Dynamic Spontaneous Rupture
02 Apr 2021 | Workshops | 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.
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Crustal Deformation Modeling Tutorial: PyLith: Modeling Afterslip with Friction
02 Apr 2021 | Workshops | 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.
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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.
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CUBIT: 3-D Meshing with Nonplanar Surfaces
02 Apr 2021 | Workshops | 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.
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Crustal Deformation Modeling Tutorial: PyLith: Introduction to Fault Friction
02 Apr 2021 | Workshops | 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.
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Crustal Deformation Modeling Tutorial: PyLith/CUBIT: 2-D subduction zone with coseismic and interseismic deformation
02 Apr 2021 | Workshops | 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.
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Crustal Deformation Modeling Tutorial: Overview of CUBIT
02 Apr 2021 | Workshops | 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.
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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.
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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.
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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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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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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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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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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.
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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.
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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.
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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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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.
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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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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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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.
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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.
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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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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.