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  1. 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...

  2. 2023 PyLith Hackathon

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

    Workshop report

  3. 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...

  4. 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...

  5. 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...

  6. 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...

  7. 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.

  8. 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...

  9. 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...

  10. 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...

  11. 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...

  12. 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...

  13. 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...

  14. 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. 

  15. 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. 

  16. 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. 

  17. 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. 

  18. Geodetic Source Inversion Validation

    02 Apr 2021 | Workshops | Contributor(s): Rowena Lohman

    Geodetic Source Inversion Validation. June 18-22, 2012. Rowena Lohman. 

  19. 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. 

  20. 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. 

  21. 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. 

  22. 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. 

  23. 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. 

  24. 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. 

  25. 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. 

  26. 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. 

  27. 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. 

  28. 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. 

  29. 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. 

  30. 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. 

  31. 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.

  32. 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. 

  33. 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. 

  34. 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. 

  35. 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. 

  36. Extended Finite Element Methods for Crustal Deformation Simulation

    30 Mar 2021 | Workshops | Contributor(s): Ethan Coon, Bruce Shaw, Marc Spiegelman

    Extended Finite Element Methods for Crustal Deformation Simulation. June 14-18, 2010. Ethan Coon. 

  37. Tomography of the Mojavian Lithosphere Viscosity from Space Geodetic data of the Landers and Hector Mine Earthquakes

    30 Mar 2021 | Workshops | Contributor(s): Sylvain Barbot, Yuri Fialko

    Tomography of the Mojavian Lithosphere Viscosity from Space Geodetic data of the Landers and Hector Mine Earthquakes. June 14-18, 2010. Sylvain Barbot. 

  38. 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. 

  39. A one dimensional model of Earth structure in the western United States from GPS observation of ocean tidal load

    30 Mar 2021 | Workshops | Contributor(s): Takeo Ito, Mark Simons

    A one dimensional model of Earth structure in the western United States from GPS observation of ocean tidal load. June 14-18, 2010. Takeo Ito. 

  40. Rheology of the brittle-plastic transition: Role of fabric and phyllosilicates

    30 Mar 2021 | Workshops | Contributor(s): Laurent G.J. Montesi

    Rheology of the brittle-plastic transition: Role of fabric and phyllosilicates. June 14-18, 2010. Laurent G.J. Montesi. 

  41. Community Benchmarks for Code Verification

    30 Mar 2021 | Workshops | Contributor(s): Brad Aagaard

    Community Benchmarks for Code Verification. June 14-18, 2010. Brad Aagaard. 

  42. Constructing constitutive relations for faulting at high and low sliding speeds

    30 Mar 2021 | Workshops | Contributor(s): Nick Beeler

    Constructing constitutive relations for faulting at high and low sliding speeds. June 14-18, 2018. Nick Beeler. 

  43. Tectonic Tremor Beneath the San Andreas Fault: Implications for lower crustal deformation

    30 Mar 2021 | Workshops | Contributor(s): David R. Shelly, Jeanne Hardebeck, Gary Fuis, Jessica Murray-Moraleda, Bill Ellsworth, Roland Bürgmann, Bob Nadeau, Greg Beroza

    Tectonic Tremor Beneath the San Andreas Fault: Implications for lower crustal deformation. June 14-18, 2010. David R. Shelly. 

  44. A model for ductile shear initiated by shear fracture: Application to short term and secular fault slip.

    30 Mar 2021 | Workshops | Contributor(s): Luc Lavier, Rick Bennett, Liz Logan, Gianreto Manatschal, Nick Hayman

    A model for ductile shear initiated by shear fracture: Application to short term and secular fault slip. June 14-18, 2010. Luc Lavier. 

  45. An overview of the 4 April 2010 Sierra El Mayor-Cucapah (Baja California) earthquake

    30 Mar 2021 | Workshops | Contributor(s): Rich Briggs, Shengji Wei, Eric Fielding, Sebastien Leprince, Anthony Sladen, Risheng Chu, Mark Simons, Jean-Philippe Avouac, Egill Hauksson, Donald V. Helmberger, Rowena Lohman, Ken Hudnut, Sinan Akciz

    An overview of the 4 April 2010 Sierra El Mayor-Cucapah (Baja California) earthquake. June 14-18, 2010. Rich Briggs. 

  46. The January 12, 2010 Haiti Earthquake

    30 Mar 2021 | Workshops | Contributor(s): Eric Calais, Andrew Freed, Glen Mattioli, Pamela Jansma, Falk Amelung, Timothy Dixon, Sigurjon Jonsson, Claude Prepetit, Roberte Momplaisir

    The January 12, 2010 Haiti Earthquake. June 10-14, 2010. Eric Calais. 

  47. News from the Chilean Front

    30 Mar 2021 | Workshops | Contributor(s): Jorge Baron, Jim Beck, Mike Bevis, Mauro Blanco, Ben Brooks, Dana Caccamise, James Foster, Jeff Genrich, Erik Kendrik, Nina Lin, Sarah Minson, Fransisco Ortega, Susan Owen, Hector Parra, Anthony Sladen, Mark Simons, Bob Smalley

    News from the Chilean Front. June 14-18, 2010. Jorge Baron. 

  48. The USGS Response to Recent Large Earthquakes: A Seismological Overview of the Haiti, Chile, and El Mayor Events

    30 Mar 2021 | Workshops | Contributor(s): Gavin Hayes

    The USGS Response to Recent Large Earthquakes: A Seismological Overview of the Haiti, Chile, and El Mayor Events. June 14-18, 2010. Gavin Hayes. 

  49. Extending PyLith

    30 Mar 2021 | Workshops | Contributor(s): Brad Aagaard, Charles Williams, Matthew Knepley, Surendra Somala

    Extending PyLith. June 14-18, 2010. Brad Aagaard. 

  50. Generating Meshes for Geodynamic Problems Using Cubit

    30 Mar 2021 | Workshops | Contributor(s): Charles Williams, Rowena Lohman

    Generating Meshes for Geodynamic Problems Using Cubit. June 14-18, 2010. Charles Williams.