| Title | Oklahoma 'Earthquake Swarm' May Be Linked Wastewater Disposal From Fracking |
| Publication Type | Web Article |
| Authors | Grenoble, Ryan |
| Abstract | From 1975 to 2008, central Oklahoma experienced an average of one to three magnitude 3.0 earthquakes or larger. Since 2008, that average has increased to around 40 per year, according to data collected by the U.S. Geological Survey. |
| URL | http://www.huffingtonpost.com/2013/10/24/okla-earthquake-swarm-fracking_n_4158134.html |