Study suggests quakes linked to fracking

Aug. 7, 2012 at 11:59 AM
| License Photo

HOUSTON, Aug. 7 (UPI) -- There might be a link between seismic activity and fracking for oil and gas, a research study published this week indicates.

The two-year inquiry by the University of Texas at Austin found that most recent earthquakes in North Texas happened close to injection wells that dispose of wastewater used in the fracking process, The Houston Chronicle reported.

The study also found that relatively minor earthquakes are happening more often than indicated in previous studies.

Lead researcher Cliff Frohlich said you can't prove that any one earthquake was caused by an injection well.

"But it's obvious that wells are enhancing the probability that earthquakes will occur," he said.

A U.S. Geological Survey report released earlier this year found that an increase in small temblors throughout the Midwest coincides with the injection of drilling wastewater in deep disposal wells.

Drilling companies have said they do not believe earthquakes are linked to injection wells.

Related UPI Stories
Latest Headlines
Trending Stories
One arrested after Philadelphia college lockdown
Boehner delays House vote for new speaker
NASA releases thousands of Apollo mission photos on Flickr
Snowden: U.S. won't respond to offers to serve prison time
FDA approves new treatment for advanced lung cancer