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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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Fault strength evolution during the seismic cycle: Insights from the laboratory
10 Mar 2023 | Webinars | 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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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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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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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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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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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) in global...
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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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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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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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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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BurnMan
14 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 of...
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Mantle-scale geodynamics
30 Mar 2021 | Workshops | Contributor(s): Louis Moresi
Mantle-scale geodynamics. Sept 15-17, 2008. Louis Moresi.
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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.
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Spectral Methods for Mantle Convection with 3D Viscosity Variations
30 Mar 2021 | Workshops | Contributor(s): Robert Moucha
Spectral Methods for Mantle Convection with 3D Viscosity Variations. July 9-11, 2008. Robert Moucha.
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Some aspects of phase transitions and mantle convection
30 Mar 2021 | Workshops | Contributor(s): Luce Fleitout
Some aspects of phase transitions and mantle convection. July 9-11, 2008. Luce Fleitout.
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The Role of Mantle Tractions and the Crust
30 Mar 2021 | Workshops | Contributor(s): Lucy Flesch
The Role of Mantle Tractions and the Crust. July 9-11, 2008. Lucy Flesch.
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A Recent Free Subduction Benchmark
30 Mar 2021 | Workshops | Contributor(s): Boris Kaus
A Recent Free Subduction Benchmark (or, how a simple test can cause a major headache) July 9-11, 2008. Boris Kaus.
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The Portable Extensible Toolkit for Scientific Computing
30 Mar 2021 | Workshops | Contributor(s): Matthew Knepley
The Portable Extensible Toolkit for Scientific Computing. July 9-11, 2008. Matthew Knepley.
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Next Generation Parallel Machines
30 Mar 2021 | Workshops | Contributor(s): Bill Broadley
Next Generation Parallel Machines. July 9-11, 2008. Bill Broadley.
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Multigrid Methods
23 Mar 2021 | Workshops | Contributor(s): Shijie Zhong
Multigrid Methods. July 9-11, 2008. Shijie Zhong.
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Modelling Deforming Interfaces using Level Sets
23 Mar 2021 | Workshops | Contributor(s): Hans Muhlhaus, Laurent Bourgouin, Lutz Gross
Modelling Deforming Interfaces using Level Sets. July 9-11, 2008. Hans Mühlhaus, Laurent Bourgouin and Lutz Gross.
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Modeling Lithospheric Deformation with Faults
23 Mar 2021 | Workshops | Contributor(s): Mian Liu
Modeling Lithospheric Deformation with Faults. July 9-11, 2008. Mian Liu.
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Modeling Sources of Stress and Topography
23 Mar 2021 | Workshops | Contributor(s): C. Lithgow-Bertelloni, J. Naliboff, C. Conrad, N. de Koker
Modeling Sources of Stress and Topography. July 9-11, 2008. C.Lithgow-Bertelloni, J. Naliboff, C. Conrad and N. de Koker.
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Mantle Convection, Plate Boundaries and Plasticity
23 Mar 2021 | Workshops | Contributor(s): Dave May, Louis Moresi, Hans Muhlhaus, Mirko Velic, Wendy Sharples, Dave Stegman
Mantle convection, plate boundaries and plasticity. July 9-11, 2008. Dave May, Louis Moresi, Hans Mühlhaus, Mirko Velic, Wendy Sharples, Dave Stegman.
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Magmatism, Faulting, & Morphology of Mid-Ocean Ridges
23 Mar 2021 | Workshops | Contributor(s): Garrett Ito, Mark Behn
Magmatism, Faulting, & Morphology of Mid-Ocean Ridges. July 9-11, 2008. Garrett Ito, Mark Behn.
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Lagrangian Finite Element Methods
23 Mar 2021 | Workshops | Contributor(s): Boris Kaus
Lagrangian Finite Element Methods for modelling long-term tectonic processes. July 9-11, 2008. Boris Kaus.
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Interactive Visualization Tools for Large-Scale Dynamic Simulations
23 Mar 2021 | Workshops | Contributor(s): Oliver Kreylos
Interactive Visualization Tools for Large-Scale Dynamic Simulations. July 9-11, 2008. Oliver Kreylos.
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Implementing Surface Erosion Processes in Geodynamic Models
23 Mar 2021 | Workshops | Contributor(s): Sean Willett, Frederic Herman, Jean Braun
Implementing Surface Erosion Processes in Geodynamic Models. July 9-11, 2008. Sean Willett, Frederic Herman, Jean Braun.
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Grain size-dependent viscosity convection
23 Mar 2021 | Workshops | Contributor(s): Slava Solomatov
Grain size-dependent viscosity convection. July 9-11, 2008. Slava Solomatov.
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GPlates and Mantle Convection
23 Mar 2021 | Workshops | Contributor(s): Michael Gurnis
GPlates and Mantle Convection. July 9-11, 2008. Michael Gurnis.
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Gale
23 Mar 2021 | Workshops | Contributor(s): Walter Landry
Gale.July 9-11, 2008. Walter Landry.
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Exchanger
23 Mar 2021 | Workshops | Contributor(s): Eh Tan, Eun-seo Choi, Mike Gurnis, Puru Thoutireddy, Michael Aivazis
Exchanger - coupling multiple solvers for mantle convection. July 9-11, 2008. Eh Tan, Eun-seo Choi, Mike Gurnis, Puru Thoutireddy, Michael Aivazis.
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Data Assimilation Methods in Geodynamical Models
23 Mar 2021 | Workshops | Contributor(s): Alik Ismail-Zadeh, Gerald Schubert, Igor Tsepelev, Alex Korotkii
Data Assimilation Methods in Geodynamical Models. July 9-11, 2008. Alik Ismail-Zadeh, Gerald Schubert, Igor Tsepelev & Alex Korotkii.
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Convergent margins processes
23 Mar 2021 | Workshops | Contributor(s): E. Burov
Convergent margins processes. July 9-11, 2008. E. Burov.
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Chemical Heterogeneity - Tracers and Entrainment
23 Mar 2021 | Workshops | Contributor(s): Allen K. McNamara
Chemical Heterogeneity - Tracers and Entrainment. July 9-11, 2008.Allen K. McNamara.
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Anisotropic Convection
23 Mar 2021 | Workshops | Contributor(s): Einat Lev
Anisotropic Convection. July 9-11, 2008. Einat Lev.
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Adaptive Finite Element Methods For Geodynamics
23 Mar 2021 | Workshops | Contributor(s): J. Huw Davies
Adaptive Finite Element Methods For Geodynamics. July 9-11, 2008. J. Huw Davies.
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2019 The Release of the GEM Global Active Faults Database and Global Seismic Hazard Map
04 Feb 2021 | Webinars | Contributor(s): Richard Styron
In late 2018, the Global Earthquake Model Foundation (GEM) released the initial version of several major products relating to seismic hazard and risk, including the Global Seismic Hazard Map, the Global Seismic Risk Map, and the Global Active Faults Database. Though these are intended primarily...
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2019 HeFESTO: A tool for exploring Earth's physical properties and their effects on mantle dynamics
04 Feb 2021 | Webinars | Contributor(s): Carolina Lithgow-Bertelloni, Lars Stixrude
The minerals that exist at the extreme pressure and temperature conditions of the mantle and their physical properties determine the dynamics of the mantle. Both are also critical for comparison with seismic observations that put constraints on our knowledge of mantle structure and...