Seismic security

EPA links oil and gas drilling to Texas quakes

Federal regulators have tied a string of earthquakes in north Texas to oil and gas drilling operations in the state. 

An Environmental Protection Agency (EPA) report filed with the Texas Railroad Commission this month concluded that the frequency of earthquakes in the state correlates to the number and location of injection or disposal wells for hydraulic fracturing wastewater there. 

“In light of findings from several researchers, its own analysis of some cases and the fact that earthquakes diminished in some areas following shut-in or reduced injection volume of targeted wells, EPA believes there is a significant possibility that North Texas earthquake activity is associated with disposal wells,” said the report, via The Texas Tribune. 

The EPA said it’s concerned about the seismic activity around the Dallas/Fort Worth area because of the “potential impact on public health and the environment, including underground drinking water.”