Are Earthquakes and Fracking Wastewater Injection Wells Related? [View all]
Two new papers tie a recent increase in significant earthquakes to reinjection of wastewater fluids from unconventional oil and gas drilling. The first study notes significant earthquakes are increasingly occurring within the United States midcontinent. In the specific case of Oklahoma, a Magnitude 5.7 earthquake and a prolific sequence of related events were likely triggered by fluid injection.
The second study, of the Raton Basin of Southern Colorado/Northern New Mexico by a U.S. Geological Survey (USGS) team, concludes the majority, if not all of the earthquakes since August 2001 have been triggered by the deep injection of wastewater related to the production of natural gas from the coal-bed methane field here.