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  1. 2020 Tectonics Modeling Tutorial Introduction

    24 Mar 2021 | Contributor(s): Organizing Committee

    2020 Tectonics Modeling Tutorial Introduction. July 20-24, 2020. Wolfgang Bangerth, Juliane Dannberg, Menno Fraters, Rene Gassmoeller, Anne Glerum, Timo Heister, Lorraine Hwang, John Naliboff. 

  2. 2021 & 2022 CIG Annual Report

    03 Nov 2021 | Contributor(s): Staff

    NSF 1550901 Annual Reports for the following years: 2020-20212021-2022 

  3. 2021 As Above So Below: A Simulation of the Continental Lithosphere and LLSVPs as Thermal Insulators Using ASPECT

    02 Nov 2021 | Contributor(s): Dante Hickey

    2021 SMOREs ShowcaseDante Hickey, Reed College

  4. 2021 Bayesian Uncertainty Quantification of Subduction Zone Rheology from the Geoid

    02 Nov 2021 | Contributor(s): Elena Ehrlich

    2021 SMOREs ShowcaseElena Ehrlich, North Carolina State University

  5. 2021 CIG

    18 Nov 2021 | Contributor(s): CIG Staff

    Presentation and recording of the 2021 CIG Annual Business Meeting November 18, 2021 ~@1-2:30P PT.

  6. 2021 CIG Annual Business Meeting

    18 Nov 2021 | Contributor(s): CIG Staff

    Presentation from the 2021 CIG Annual Business Meeting, November 18 @1-2:30P PT.

  7. 2021 CIG Community Research Highlights

    02 Aug 2021 | Contributor(s): Lorraine Hwang

    Research highlights solicited from the community for CIG IV, 

  8. 2021 CIG Developers Workshop Report

    14 Jul 2021 | Contributor(s): Organizing Committee

    2021 CIG Developers Workshop Report. February 23 & 25, 2021.   

  9. 2021 CIG Developers Workshop Survey

    14 Jul 2021 | Contributor(s): Organizing Committee

    2021 CIG Developers Workshop Survey. February 23 & 25, 2021. 

  10. 2021 Early Earth Influence of Radiogenic Heating on Mid-Ocean Ridge Depths and Seafloor Subsidence

    02 Nov 2021 | Contributor(s): Keneni Godana

    2021 SMOREs ShowcaseKeneni Godana, University of Illinois at Chicago

  11. 2021 Interactions between Lithospheric Instabilities and Formation of Mantle Plumes in Venus

    02 Nov 2021 | Contributor(s): Hiva Mohammadzadeh

    2021 SMOREs ShowcaseHiva Mohammadzadeh, Los Angeles Pierce College

  12. 2021 Rayleigh Hackathon Report

    12 Sep 2022 | Contributor(s): CIG Staff

  13. 2021 SMOREs Introduction

    02 Nov 2021 | Contributor(s): John Naliboff

    2021 SMOREs ShowcaseJohn Naliboff, New Mexico Tech

  14. 2022 CIG Annual Business Meeting

    29 Nov 2022 | Contributor(s): CIG Staff

    Presentation from the 2022 CIG Annual Business meeting, November 9, 2022 from 10a-noon PT. [more info]

  15. 2022 CIG Annual Report

    06 Sep 2022 | Contributor(s): CIG Staff

    2022 CIG Annual Report

  16. 2022 Cycles of slow slip events on nonplanar subduction faults and their implications on megathrust earthquakes

    11 Jun 2022 | Webinars | Contributor(s): Duo Li

    Slow slip and slow earthquakes (SSEs), driven by transient aseismic deformation along the subduction interface, are proposed to affect the initiation of megathrust earthquakes. Prominent examples, as inferred from geodetic and seismic observations, include the 2011 M9.1Tohoku-Oki,, the 2014...

  17. 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...

  18. 2022 Fault-size dependent fracture energy, seismogenesis, and cascading rupture on multi-scale fault networks

    29 May 2022 | Webinars | Contributor(s): Dmitry Garagash

    Fracture energy fundamentally affects all aspects of earthquake rupture, including fault seismogenesis. Seismological inferences of fracture energy [1-3] are seen to increase with both slip and the size of fault source. To explain these observations, refs [3-5] invoke co-seismic shear...

  19. 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...

  20. 2022 Modeling shallow slow slip events along the Hikurangi margin: Insights into their segmentation and the effect of pore-pressure cycling

    02 Jul 2022 | Webinars | Contributor(s): Andrea Perez-Silva

    Friday July 1, 2022 Andrea Perez-Silva, Victoria University of Wellington Over the last two decades, geodetic observations have revealed slow slip events (SSEs) in most subduction zones worldwide. Of these, SSEs that occur along the shallow (<~15 km depth) portion of the Hikurangi...

  21. 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...

  22. 2022 Rayleigh Hackathon

    20 Oct 2022 | Workshops | Contributor(s): Nicholad Featherstone, Rene Gassmoeller

    Workshop Report

  23. 2022 Rupture styles and recurrence patterns in seismic cycles linked to physical properties of the fault zone

    18 May 2022 | Webinars | Contributor(s): Shiying Nie

    Rupture styles emerge in a broad range of rupture styles, from slow-slip events collocated with or without tremors to pulse-like earthquake sequences. Meanwhile, Earthquake catalogs exhibit various recurrence patterns, from periodic and characteristic earthquakes to chaotic sequences with...

  24. 2022 Seismic Cycles Workshops

    13 Oct 2022 | Workshops | Contributor(s): Sylvain Barbot, Multiple

    Presentations from the 2022 Seismic Cycles Workshop. 

  25. 2022 Software Developers Workshop

    13 Jul 2022 | Workshops | Contributor(s): Brad Aagaard, Rene Gassmoeller, Lorraine Hwang

    Workshop Report

  26. 2022 Theoretical insights on the rupture arrest of large earthquakes

    24 May 2022 | Webinars | Contributor(s): Jean Paul Ampuero

    What determines the size of an earthquake? How can we quantify the control of geometric and material heterogeneities on rupture segmentation? I will present recent progress in our theoretical understanding of earthquake rupture arrest, especially for the largest earthquakes. Recent advances in...

  27. 2023 ASPECT Hackathon

    05 Sep 2023 | Workshops | Contributor(s): ASPECT Hackathon Participants

    Hackathon repport.For more information see: https://geodynamics.org/events/details/290

  28. 2023 CIG Annual Business Meeting

    18 Dec 2023 | Documents | Contributor(s): Lorraine Hwang, Rene Gassmoeller, Mohamed Gouiza

    CIG presentations from the 2023 Annual Business Meeting, Wednesday December 13, San Francisco, CA.

  29. 2023 Crafting Quality Research Software and Navigating Publication in Software Journals

    11 Aug 2023 | Workshops | Contributor(s): CIG Staff

    Videos and presentation for this workshop.See also the event website.

  30. 2023 PyLith Hackathon

    02 Aug 2023 | Workshops | Contributor(s): Brad Aagaard

    Workshop report

  31. 2023 Rayleigh Hackathon

    15 Aug 2023 | Workshops | Contributor(s): Nick Featherstone, Rene Gassmoeller, Workshop Participants

    Hackathon Report For event information, see: https://geodynamics.org/events/details/288

  32. 2D Benchmark Results for Compressible Convection

    29 Dec 2020 | Workshops | Contributor(s): Peter van Keken

    2D Benchmark Results for Compressible Convection. March 27-28, 2006. Peter van Keken. 

  33. 3-D geometry of fault surfaces

    02 Apr 2021 | Workshops | Contributor(s): Ole Kaven

    3-D geometry of fault surfaces. June 22-26, 2009. Ole Kaven. 

  34. 3-D Spherical Mantle Convection with Radial Basis Functions

    02 Apr 2021 | Workshops | Contributor(s): Grady B. Wright, Natasha Flyer, David Yuen

    3-D Spherical Mantle Convection with Radial Basis Functions. March 30-31, 2009. Grady B. Wright, Natasha Flyer, David Yuen. 

  35. 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. 

  36. 3D numerical mechanical modeling of the southern San Andreas Fault system

    30 Mar 2021 | Workshops | Contributor(s): Benjamin Hooks, B.R. Smith-Konter

    3D numerical mechanical modeling of the southern San Andreas Fault system. June 14-18, 2010. Benjamin Hooks. 

  37. 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. 

  38. 3D spherical convective dynamo models (a history of)

    29 Mar 2021 | Workshops | Contributor(s): Gary A. Glatzmaier

    3D spherical convective dynamo models (a history of). October 8-10, 2012. Gary A. Glatzmaier. 

  39. 3D spherical gridding

    27 Dec 2020 | Workshops | Contributor(s): Christian Huettig

    3D spherical gridding based on equidistant, constant volume cells for FV/FD methods. June 19, 2005. Christian Huettig. 

  40. 3D Spherical Mantle Convection Calculations using the Yin-Yang grid

    30 Mar 2021 | Workshops | Contributor(s): Paul Tackley

    3D Spherical Mantle Convection Calculations using the Yin-Yang grid. July 9-11, 2008. Paul Tackley. 

  41. 3D Viscoelastic Earthquake Cycle Models: Estimating fault slip rates, locking distribution, elastic/viscous properties of lithosphere/asthenosphere

    02 Apr 2021 | Workshops | Contributor(s): Kaj M. Johnson, Paul Segall, Ray Chuang, Junichi Fukuda

    3D Viscoelastic Earthquake Cycle Models: Estimating fault slip rates, locking distribution, elastic/viscous properties of lithosphere/asthenosphere. June 22-26, 2009. Kaj Johnson. 

  42. A Bayesian Approach for Inter-plate Coupling Models in Subduction Zones

    01 Apr 2021 | Workshops | Contributor(s): Fransisco Ortega, Mark Simons

    A Bayesian Approach for Inter-plate Coupling Models in Subduction Zones. June 23-27, 2008. Fransisco Ortega. 

  43. A Brief Discussion on CitcomS

    29 Dec 2020 | Workshops | Contributor(s): Shijie Zhong

    A Brief Discussion on CitcomS. March 27-28, 2006. Shijie Zhong. 

  44. A Brief Introduction to Icosahedral Grids

    28 Mar 2021 | Workshops | Contributor(s): Ross Heikes, David Randall

    A Brief Introduction to Icosahedral Grids. February 5-6, 2015. Ross Heikes, David Randall. 

  45. A case for robust micromechanical models

    09 Jan 2021 | Workshops | Contributor(s): Saswata Hier-Majumder

    A case for robust micromechanical models. August 18-19, 2006. Saswata Hier-Majumder. 

  46. A community plan towards reproducible simulations of complex lithospheric dynamics

    30 Mar 2021 | Workshops | Contributor(s): CIG Long-Term Tectonics Working Group

    A community plan towards reproducible simulations of complex lithospheric dynamics. October 13-15, 2020. 

  47. A Constitutive Model for Layer Development in Shear Zones near the Brittle-Ductile Transition

    12 Feb 2021 | Workshops | Contributor(s): Laurent G.J. Montési

    A Constitutive Model for Layer Development in Shear Zones near the Brittle-Ductile Transition. June 25-29, 2007. Laurent G.J. Montési. 

  48. A finite volume solution method for thermal convection in a spherical shell with strong temperature- and pressure-dependent viscosity

    27 Dec 2020 | Workshops | Contributor(s): Kai Stemmer, H. Harder, U. Hansen

    A finite volume solution method for thermal convection in a spherical shell with strong temperature- and pressure-dependent viscosity. June 19, 2005. Kai Stemmer, H. Harder, U. Hansen. 

  49. A Finite-Element Code for Modeling Quasi-Static and Dynamic Crustal Deformation

    14 Feb 2021 | Workshops | Contributor(s): Brad Aagaard, Charles Williams, Matt Knepley, Leif Strand, Sue Kientz

    A Finite-Element Code for Modeling Quasi-Static and Dynamic Crustal Deformation. October 9-11, 2007. Brad Aagaard, Charles Williams, Matt Knepley, Leif Strand, Sue Kientz.

  50. A Framework of Ground Truth Event Locations Across Iran from a Two Tiered Multi-Event Relocation Approach

    26 Mar 2021 | Workshops | Contributor(s): Ezgi Karasozen, Eric Bergman, Edwin Nissen

    A Framework of Ground Truth Event Locations Across Iran from a Two Tiered Multi-Event Relocation Approach. September 18-22, 2017. Ezgi Karasozen, Eric Bergman, Edwin Nissen.