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  1. 2007cigspiceirisworkshopincomputationalseismology x
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  1. 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...

  2. 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...

  3. 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...

  4. 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...

  5. 2021 SMOREs Introduction

    02 Nov 2021 | Webinars | Contributor(s): John Naliboff

    2021 SMOREs ShowcaseJohn Naliboff, New Mexico Tech

  6. 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

  7. 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

  8. 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

  9. 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

  10. SPECFEM3D Cartesian

    30 Oct 2021 | Software: Download | Contributor(s): Dimitri Komatitsch (primary-developer), Jean-Pierre Vilotte (primary-developer), Jeroen Tromp (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...

  11. SPECFEM3D GLOBE

    30 Oct 2021 | Software: Download | Contributor(s): Dimitri Komatitsch (primary-developer), ean-Pierre Vilotte (primary-developer), Jeroen Tromp (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...

  12. 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...

  13. SPECFEM2D

    29 Oct 2021 | Software: Download | Contributor(s): Dimitri Komatitsch (primary-developer), Jean-Pierre Vilotte (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...

  14. 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.

  15. SW4

    28 Oct 2021 | Software: Download | Contributor(s): N. Anders Petersson, Bjorn Sjögreen

    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...

  16. AxiSEM

    28 Oct 2021 | Software: Download | Contributor(s): Tarje Nissen-Meyer (primary-developer), Martin van Driel (primary-developer), Simon Stähler (primary-developer), Kasra Hosseini (primary-developer), Stefanie Hempel (primary-developer), Lion Krischer (primary-developer), Alexandre Fournier (primary-developer)

    AxiSEM is a parallel spectral-element method for 3D (an-)elastic, anisotropic and acoustic wave propagation in spherical domains. It requires axisymmetric background models and runs within a 2D computational domain, thereby reaching all desired highest observable frequencies (up to 2Hz)...

  17. 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...

  18. 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...

  19. 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...

  20. 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...

  21. BurnMan

    13 Sep 2021 | Software: Download | Contributor(s): Sanne Cottaar, Timo Heister, Robert Myhill, Ian Rose, Cayman Unterborn

    BurnMan is an open source mineral physics toolbox written in Python to determine seismic velocities for the lower mantle. BurnMan calculates the isotropic thermoelastic moduli by solving the equations-of-state for a mixture of minerals defined by the user. The user may select from a list...

  22. 2007 CIG/SPICE/IRIS Workshop Program and Abstracts

    30 Mar 2021 | Workshops | Contributor(s): Organizing Committee

    2007 CIG/SPICE/IRIS Workshop Program and Abstracts. October 9-11, 2007. 

  23. 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. 

  24. 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. 

  25. 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. 

  26. 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. 

  27. 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. 

  28. 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. 

  29. 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. 

  30. 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. 

  31. 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. 

  32. 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. 

  33. 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. 

  34. Active Tectonics of Alaska

    28 Mar 2021 | Workshops | Contributor(s): Jeff Freymueller

    Active Tectonics of Alaska. July 14-19, 2013. Jeff Freymueller. 

  35. 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. 

  36. Hex meshing 101

    28 Mar 2021 | Workshops | Contributor(s): Emanuele Casarotti

    Hex meshing 101. July 14-19, 2013. Emanuele Casarotti. 

  37. 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. 

  38. 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. 

  39. 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. 

  40. 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. 

  41. 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. 

  42. 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. 

  43. 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. 

  44. Overview of the High-Order ADER-DG Method for Numerical Seismology

    18 Feb 2021 | Workshops | Contributor(s): Martin Käser, Michael Dumbser, Josep de la Puente, Verena Hermann, Cristobal Castro

    Overview of the High-Order ADER-DG Method for Numerical Seismology. October 9-11, 2007. Martin Käser, Michael Dumbser, Josep de la Puente, Verena Hermann, Cristobal Castro.

  45. Rayleigh and Love wave tomography of the western United States from ambient seismic noise using US Array

    17 Feb 2021 | Workshops | Contributor(s): Fan-Chi Lin, Morgan Moschetti, Michael Ritzwoller

    Rayleigh and Love wave tomography of the western United States from ambient seismic noise using US Array. October 9-11, 2007. Fan-Chi Lin, Morgan P. Moschetti, and Michael H. Ritzwoller. 

  46. CIG Geodynamics Software: Modeling Tools for the Earth Science Community

    17 Feb 2021 | Workshops | Contributor(s): Eh Tan

    CIG Geodynamics Software: Modeling Tools for the Earth Science Community. October 9-11, 2007. Eh Tan. 

  47. SPECFEM3D_GLOBE

    17 Feb 2021 | Workshops | Contributor(s): David Michéa

    SPECFEM3D_GLOBE. October 9-11, 2007. David Michéa. 

  48. Synthetic seismograms for stagnant slab model

    17 Feb 2021 | Workshops | Contributor(s): Seiji Tsuboi, H. Sugioka, M. Obayashi, Y. Fukao, Yuan Gao

    Synthetic seismograms for stagnant slab model. October 9-11, 2007. Seiji Tsuboi, H. Sugioka, M. Obayashi, Y. Fukao, Yuan Gao.

  49. ShakeOut and its effects in Los Angeles and Oxnard areas

    17 Feb 2021 | Workshops | Contributor(s): Leonardo Ramirez-Guzman, Ricardo Taborda, Julio López, John Urbanic, Jacobo Bielak, David O'Hallaron

    ShakeOut and its effects in Los Angeles and Oxnard areas. October 9-11, 2007. Leonardo Ramírez-Guzmán, Ricardo Taborda, Julio López, John Urbanic, Jacobo Bielak and David O’Hallaron. 

  50. Wave Propagation Project (WPP): A New Open-Source Tool Supporting Computational Seismology at LLNL

    17 Feb 2021 | Workshops | Contributor(s): Arthur Rodgers

    Wave Propagation Project (WPP): A New Open-Source Tool Supporting Computational Seismology at LLNL. October 9-11, 2007. Arthur Rodgers.