Scientists Prove Texas Earthquakes Were Caused by Fracking
By Seth Borenstein, Associated Press
WASHINGTON — Scientists used radar from satellites to show that five Texas earthquakes, one reaching magnitude 4.8, were caused by injections of wastewater in drilling for oil and gas.
In 2012 and 2013, earthquakes — five of them considered significant — shook East Texas near Timpson. A team of scientists for the first time were able to track the uplifting ground movements in the earthquake using radar from satellites. A study in the journal Science on Thursday says it confirms that these were not natural, something scientists had previously said was likely using a more traditional analysis.
Study co-author Stanford University William Ellsworth said the technique provides a new way to determine what quakes are man-made.
The team looked at two sets of wells, eastern and western. The eastern wells were shallow and the satellite radar showed that the eastern wells weren’t the culprit, but the high-volume deeper western ones were, Ellsworth said.
Cornell University seismologist Rowena Lohman, who wasn’t part of the study, said it shows that satellite data of ground changes provide good ways to complement what’s measured on the ground.
The quakes have stopped, but Ellsworth said, “the area was shaken pretty thoroughly over a period of about 18 months.”
Ellsworth said the shaking stopped when injection of wastewater dramatically decreased. And that’s a lesson that other areas — such as Kansas and Oklahoma — also have learned.
“Part of the solution is how we manage this problem,” Ellsworth said. “If we get the pressure to go down at depth, the earthquakes stop.”
To Learn More:
California Loses Earthquake Crown to Oklahoma (by Ken Broder, AllGov)
Oklahoma Scientists Agreed to Keep Quiet about Fracking-Earthquake Link for 5 Years (by Danny Biederman and Noel Brinkerhoff, AllGov)
Fracking Blamed for Series of Earthquakes in Texas City (by Steve Straehley, AllGov)
- Top Stories
- Unusual News
- Where is the Money Going?
- U.S. and the World
- Appointments and Resignations
- Latest News
- Managing Director of the Council on Environmental Quality: Who Is Christy Goldfuss?
- Executive Director of the Office of Faith-Based and Neighborhood Partnerships: Who Is Melissa Rogers?
- Principal Deputy Director of the United States Mint: Who Is Rhett Jeppson?
- Coordinator of the Bureau of International Information Programs: Who is Macon Phillips?
- Acting Under Secretary of the Veterans Benefits Administration: Who Is Tom Murphy?