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RENO, Texas — The first time the earth shook their home, David and Meredith Hull thought it was a propane tank exploding outside, an odd but rare phenomenon.
Then it happened again. And again and again — more than 30 earthquakes since early November. One tremor tossed David Hull against the refrigerator and Meredith atop the stove.
"It felt like something was under the house literally lifting it up and slamming it back down on its foundation," said David Hull, 60, a retired sheriff's deputy. "The whole house was shaking."
The Hulls are one of dozens of families here and in nearby Azle, about 17 miles northwest of Fort Worth, who say they've been hit with a rash of earthquakes since November. Residents and city leaders point to area oil and gas disposal wells as likely culprits.
originally posted by: OrphanApology
a reply to: liejunkie01
Not really much evidence at this point.
Either way, the earthquakes have been relatively small. The business that fracking has created is in my opinion, worth the risk. It has given good paying jobs to many blue collar working men.
originally posted by: Texcin
If fracking causes earthquakes then why no earthquakes in North Dakota where their fracking like crazy?
The results of research by the U.S. Geological Survey released last year essentially concluded that a sharp rise in seismic activity in the middle of the U.S. was the result of injecting water into deep underground wells. There is also growing concern that gas-drilling in the Netherlands has led to some recent earthquakes.
A spate of earthquakes across the middle of the U.S. is “almost certainly” man-made, and may be caused by wastewater from oil or gas drilling injected into the ground, U.S. government scientists said in a study.
Researchers from the U.S. Geological Survey said that for the three decades until 2000, seismic events in the nation’s midsection averaged 21 a year. They jumped to 50 in 2009, 87 in 2010 and 134 in 2011.
Those statistics, included in the abstract of a research paper to be discussed at the Seismological Society of America conference next week in San Diego, will add pressure on an energy industry already confronting more regulation of the process of hydraulic fracturing.
“Our scientists cite a series of examples for which an uptick in seismic activity is observed in areas where the disposal of wastewater through deep-well injection increased significantly,” David Hayes, the deputy secretary of the U.S. Department of Interior, said in a blog post yesterday, describing research by scientists at the U.S. Geological Survey.
The earthquakes were “fairly small,” and rarely caused damage, Hayes said.
He said not all wastewater disposal wells induce earthquakes, and there is no way of knowing if a disposal well will cause a temblor.