# Matplotlib perceptually-uniform colormaps as QGIS color ramps

I've taken the new Matplotlib perceptually-uniform colormaps and converted them to QGIS color ramps. Check 'em out!

# Topographic and tectonic stress inversions with halfspace: Calculating topographic stresses on a fault

In order to complete the tutorial, please first clone/download the github repo which comes with the DEM, coseismic slip model, and some auxiliary files, all with the correct pathnames.

This part is pretty easy. It's just an interpolation of the topographic stress field ...

# Topographic and tectonic stress inversions with halfspace: Calculating the topographic stress field

edited 22 Feb 2015: Equations \$G_{xx}^B\$ and \$G_{yy}^B\$ corrected

## Background of the topographic stress field calculations

The weight of mountains (or other high topography) induces stresses in the earth below the topography. Unlike many other types of stress in the crust, topographic stresses are expected to ...

# Topographic and tectonic stress inversions with halfspace: Preparing a coseismic slip model

In order to complete the tutorial, please first clone/download the github repo which comes with the DEM, coseismic slip model, and some auxiliary files, all with the correct pathnames.

# Topographic and tectonic stress inversions with halfspace: Preparing a DEM

In order to complete the tutorial, please first clone/download the github repo which comes with the DEM, coseismic slip model, and some auxiliary files, all with the correct pathnames.

# Low-angle Normal Fault Likelihood IPython Notebook

This is an IPython Notebook version of a paper I have just submitted to Geophysical Research Letters. This is the complete paper, but with all the code embedded, and is executable. However, it does need a Python module called eq_stats.py as well as some of the typical Python scientific ...

# A new open-source GIS file for active(?) low-angle normal faults

TL;DR: I made a GIS file (SHP, KML, GeoJSON) of potentially-active low-angle normal faults. You can get it at github here, and contribute if you'd like.

I'm finishing up a project estimating the maximum likelihood of observing an earthquake on a low-angle normal fault (LANF). Basically, observations ...

# Active Tectonics of the Andes (ATA) active fault database now on GitHub

This post originally appeared on my old blog.

In order to facilitate collaboration in development of the Active Tectonics of the Andes, a database of active faults in the (northern, for now) Andes, we have hosted it on GitHub. The development version is here, although the ‘release’ versions will continue ...

# HimaTibetMap now on GitHub

This was a post that appeared on my old blog.

edit 9 June 2013: HimaTibetMap repo on GitHub updated to new address

I maintain HimaTibetMap, an open-source database of active faults in the Indo-Asian collision zone. While I was in phd school, we hosted the data on KU’s proprietary ...

# Active Tectonics of the Andes (ATA-1.0): A new open-source active fault database, and interpretation

This post originally appeared on my old blog. Please note that the ATA database is now located at GitHub.

The 1 October 2012 issue of GSA Today (a science and news magazine by the Geological Society of America) features a new article from our research group, primarily written by my ...