GEM Global Active Faults

The GEM Global Active Faults project is compiling a global dataset of active faults (link here) for seismic hazard assessment as well as research, education and general interest. While this is a work in progress, we've got a lot of the world covered already. Check out the map below, and click on any fault for more information. Thanks!

The faults are colored by kinematcs; blue faults are dextral, purple faults are sinistral, red faults are normal and black faults are reverse. See this map full screen

Many thanks to the many geoscientists and organizations who have made the regional catalogs used in this work.

This study is made possible by the support of the American People through the United States Agency for International Development (USAID.) The contents of this study are the sole responsibility of the GEM Foundation and do not necessarily reflect the views of USAID or the United States Government.


Data Sources

Catalog Publication Data Link
USGS Hazfaults 2014 Machette et. al 2003
SHARE Woessner et al. 2013
Active Tectonics of the Andes Veloza et al. 2012
Macgregor Africafaults Macgregor 2015 (none)
EMME Danciu et al. 2014
GEM Active Faults (none)
HimaTibetMap Styron et al. 2010
Myanmar (none) (none)
GEM Central Am. Carib Styron et al. in prep.
GEM N. Africa Styron, in prep.
Philippines (none)
SARA (none)
Thailand (none) (none)
Taiwan Shyu et al. 2016
Mexico Villegas et al. 2017

Questions? Concerns? Suggestions about data? Please contact Richard Styron at richard.styron (at)