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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 CIG
18 Nov 2021 | Documents | Contributor(s): CIG Staff
Presentation and recording of the 2021 CIG Annual Business Meeting November 18, 2021 ~@1-2:30P PT.
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2021 CIG Annual Business Meeting
18 Nov 2021 | Documents | Contributor(s): CIG Staff
Presentation from the 2021 CIG Annual Business Meeting, November 18 @1-2:30P PT.
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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 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 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 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 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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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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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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2021 CIG Community Research Highlights
02 Aug 2021 | Documents | Contributor(s): Lorraine Hwang
Research highlights solicited from the community for CIG IV,
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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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Full Waveform Inversion: challenges
29 Mar 2021 | Workshops | Contributor(s): Jean Virieux, A. Asnaashari, F. Bretaudeau, R. Brossier, C. Castellanos, M. Dietrich, S. Garambois, F. Lavoue, I. Masoni, L. Metivier, S. Operto, A. Ribodetti
Full Waveform Inversion: challenges. July 14-19, 2013. Jean Virieux.
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Imaging Earth's Interior based on Spectral-Element and Adjoint Methods
29 Mar 2021 | Workshops | Contributor(s): Jeroen Tromp, Hejun Zhu, Ebru Bozdag, Daniel Peter, Tom Duffy
Imaging Earth's Interior based on Spectral-Element and Adjoint Methods. July 14-19, 2013. Jeroen Tromp.
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Imaging with the Generalized Radon Transform: a review of the theory and applications (to subduction zones)
29 Mar 2021 | Workshops | Contributor(s): Stéphane Rondenay, M Bostock, J Shragge, G Abers, C-W Chen, S. McGary, F Pearce, J. Suckale, P van Keken, L Montési
Imaging with the Generalized Radon Transform: a review of the theory and applications (to subduction zones). July 14-19, 2013. Stéphane Rondenay.
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Low velocities in the oceanic upper mantle and their relation to plumes: insights from SEM-based waveform tomography
29 Mar 2021 | Workshops | Contributor(s): Barbara Romanowicz, Scott French, Verdan Lekic
Low velocities in the oceanic upper mantle and their relation to plumes: insights from SEM-based waveform tomography. July 14-19, 2013. Barbara Romanowicz.
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Rapid CAD and tetrahedral mesh generation for dynamic rupture problems
29 Mar 2021 | Workshops | Contributor(s): Christian Pelties, Cameron Smith, Gudmundur Heimisson, Stefan Wenk, Alice Gabriel
Rapid CAD and tetrahedral mesh generation for dynamic rupture problems. July 14-19, 2013. Christian Pelties.
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AxiSEM HIgh-frequency Global Wavefields for Forward and Inverse Modeling
29 Mar 2021 | Workshops | Contributor(s): Tarje Nissen-Meyer, Martin van Driel, Simon Stähler, Kasra Hosseini, Stefanie Hempel, Alexandre Fournier
AxiSEM HIgh-frequency Global Wavefields for Forward and Inverse Modeling. July 14-19, 2013. Tarjie Nissen-Meyer.
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SCEC's Unified Community Velocity Model (UCVM) Software: Development Goals and Current Status
29 Mar 2021 | Workshops | Contributor(s): Philip Maechling, David Gill, Patrick Small, Geoffrey Ely, Ricardo Taborda, Andreas Piesch, Thomas Jordan
SCEC's Unified Community Velocity Model (UCVM) Software: Development Goals and Current Status. July 14-19, 2013. Philip Maechling.
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High-resolution seismic array imaging based on spectral element simulations
29 Mar 2021 | Workshops | Contributor(s): Piero Basini, Ping Tong, Qingya Liu, Yingjie Yang, Carl Tape, Chinwu Chen, Dimitri Komatitsch
High-resolution seismic array imaging based on spectral element simulations. July 14-19, 2013. Piero Basini.
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Quickly Imaging Global Large Earthquakes Using Seismic Waveforms ----- A balance between quickness and accuracy
28 Mar 2021 | Workshops | Contributor(s): Chen Ji, Guangfu Shao, Xiangyu Li, Tomoko Yano, Ralph Archuleta, Gavin Hayes, David Wald, Yuehua Zeng, Dom Helmberger, Jinglai Hao
Quickly Imaging Global Large Earthquakes Using Seismic Waveforms ----- A balance between quickness and accuracy. July 14-19, 2013. Chen Ji.
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Rupture Properties of Intermediate-Depth Earthquakes
28 Mar 2021 | Workshops | Contributor(s): Miaki Ishii, Eric Kiser, Peter M. Shearer, Charles H. Langmuir, Hitoshi Hirose
Rupture Properties of Intermediate-Depth Earthquakes. July 14-19, 2013. Miaki Ishii.
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Challenges in computational seismology
28 Mar 2021 | Workshops | Contributor(s): Heiner Igel, M. Bernauer, A. Fichtner, P. Käufl, L. Krischer, A. Molina, C. Pelties, A. Schiemenz, M. Simon, S. Wenk
Challenges in computational seismology. July 14-19, 2013. Heiner Igel.
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Active Tectonics of Alaska
28 Mar 2021 | Workshops | Contributor(s): Jeff Freymueller
Active Tectonics of Alaska. July 14-19, 2013. Jeff Freymueller.
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Towards a Comprehensive Seismic Model
28 Mar 2021 | Workshops | Contributor(s): Andreas Fichtner, Yann Capdeville, Paul Cupillard, Lion Krischer, Florian Rickers, Erdinc Saygin, Jeannot Trampert, Antonio Villasenor
Towards a Comprehensive Seismic Model. July 14-19, 2013. Andreas Fichtner.
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Hex meshing 101
28 Mar 2021 | Workshops | Contributor(s): Emanuele Casarotti
Hex meshing 101. July 14-19, 2013. Emanuele Casarotti.
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Ambient noise imaging
28 Mar 2021 | Workshops | Contributor(s): Michel Campillo, Bérénice Froment, Piero Poli, Pierre Boué, Philippe Roux, Laurent Stehly, Gregor Hillers, Anne Paul, Nikolai Shapiro, Helle Pedersen
Ambient noise imaging. July 14-19, 2013. Michel Campillo.
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Low Frequency Earthquakes: A New Seismic Source for Imaging Subduction Zones
28 Mar 2021 | Workshops | Contributor(s): Michael Bostock, Alexandra Royer, Gian Matharu, Robert Nowack
Low Frequency Earthquakes: A New Seismic Source for Imaging Subduction Zones. July 14-17, 2013. Michael Bostock.
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Multi-scale 4D imaging of fault zone environments
28 Mar 2021 | Workshops | Contributor(s): Yehuda Ben-Zion, A. Allam, D. Zigone, G. Hillers, M. Campillo, R. Roux, C. Tape, Z. Peng, M. Lewis
Multi-scale 4D imaging of fault zone environments. July 14-17, 2013. Yehuda Ben-Zion.
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IRIS Services, Products, Quality Assurance Efforts, and Potential Links to High Performance Computing in the Era of BIG DATA
28 Mar 2021 | Workshops | Contributor(s): Tim Ahern, M. Bahavar, R. Casey, C. Trabant, A. Clark, A. Hutko, R. Karstens, Y. Suleiman, B. Weertman
IRIS Services, Products, Quality Assurance Efforts, and Potential Links to High Performance Computing in the Era of BIG DATA. July 14-17, 2013. Tim Ahern.
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SGS Bay Area Seismic Velocity Model, Construction and Earthquake Simulations
28 Mar 2021 | Workshops | Contributor(s): Brad Aagaard, Thomas Brocher, Robert Jachens, Robert Simpson
SGS Bay Area Seismic Velocity Model, Construction and Earthquake Simulations. July 14-17, 2013. Brad Aagaard.
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2013 CIG-QUEST-IRIS Workshop: Seismic Imaging of Structure and Source Abstract Volume
28 Mar 2021 | Workshops | Contributor(s): Organizing Committee
2013 CIG-QUEST-IRIS Workshop: Seismic Imaging of Structure and Source Abstract Volume. July 14-17, 2013.
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2013 CIG-QUEST-IRIS Workshop: Seismic Imaging of Structure and Source Agenda
28 Mar 2021 | Workshops | Contributor(s): Organizing Committee
2013 CIG-QUEST-IRIS Workshop: Seismic Imaging of Structure and Source Agenda. July 14-17, 2013.
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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.