Computational Infrastructure
for Geodynamics (CIG)

Community-driven organization advancing Earth science by providing the infrastructure for the development and dissemination of software for geophysics and related fields.

2023 Summer Hackathons

Apply now for summer hackathons for ASPECT, PyLith,and Rayleigh.

Apply by March 31, 2023 for full consideration.

Research Highlight


Coupling mantle convection (ASPECT) to lithosphere and surface processes to understand North American tectonics

Contributed by Alireza Bahadori and Jacqueline Austerman, Columbia University 

Dramatic topographic extension, an unparalleled suite of data from field observations and EarthScope, and well-constrained plate boundary evolution make the western United States a world-class natural laboratory for studying the thermomechanical processes of extensional collapse. The present-day Basin and Range province of Southwestern North America (SWNA) is the product of this complete period of extension. The extensional period is generally recognized to consist of an early phase in latest Eocene-Oligocene, in which metamorphic core complexes formed through evolution of low-angle normal faults that eventually exhumed highly sheared middle-crustal rocks (Bahadori and Holt, 2019).

In a pair of studies we model mantle flow using ASPECT ... [full article]


Check out all Research Highlights

What Is happening?


2023 CIG Fault Mechanics Webinar

March 17, 2023


Exploring flash heating coupled with mm-scale contact evolution in granite. Monica BarberyBrown University. •  register  •  More Info 

Updated 13 March 2023


2023 CIG Webinar

April 13, 2023


Making the Ocean Floor: Two-phase dynamics of mantle melting and formation of oceanic lithosphere.   Adina PusokOxford University •  register  •  More Info 

Posted 13 March 2023


2023 CIG Fault Mechanics Webinar

March 24, 2023


Hydrothermal friction experiments on simulated basaltic fault gouge and implications for megathrust earthquakes, Hanaya Okuda,  University of Tokyo. •  register  •  More Info  

Updated 13 March 2023


Geochemistry, Geophysics, Geosystems Special Collection

Call for Papers for Frontiers in lithospheric dynamics: bridging scales through observations, experiments, and computations.   •  More Info

Deadline: 23 November 2023

Posted 17 January 2022


2023 CIG Fault Mechanics Webinar

April 7, 2023


What can we learn about friction evolution and rupture behavior from laboratory experiments?, Vito RubinoEcole Central de Nantes. •  register  •  More Info 

Posted 13 March 2023

Get the Tools


A set of codes for MHD dynamo simulation in a rotating spherical shell using spherical harmonics expansion methods.
Current release: 2017-07-17
GNU GPL v2 or newer license



Finite-element code for dynamic and quasistatic simulations of crustal deformation, primarily earthquakes. and volcanoes
Current release: 2022-10-14
MIT license



A 3-D convection code designed for the study of dynamo behavior in spherical shell geometry. 
Current release: 2022-05-05
GNU GPL v3 or newer license


v3.0 beta

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. 
Current release: 2012-11-02
GNU GPL v2 or newer license

Contribute Code

Find out more about contributing software to the community.
CIG on Zenodo
Join our forum to receive announcements and be part of community discussions. The forum has replaced our mailing lists.