A hydraulic fracturing operation near Fox Creek, Alta., has been shut down after an earthquake hit the area Tuesday.
Sourced through Scoop.it from: www.cbc.ca
“[…] The magnitude 4.8 quake was reported at 11:27 a.m., says Alberta Energy Regulator, which ordered the shutdown of the Repsol Oil & Gas site 35 kilometres north of Fox Creek.
Carrie Rosa, spokeswoman for the regulator, says “the company has ceased operations … and they will not be allowed to resume operations until we have approved their plans.”
Rosa added the company is working with the energy regulator to ensure all environmental and safety rules are followed.
In a statement, Repsol confirmed the seismic event and said the company was conducting hydraulic fracturing operations at the time it happened. […]
Jeffrey Gu, associate professor of geophysics at the University of Alberta, said the area surrounding Fox Creek has been experiencing a proliferation of quakes lately.
He estimates in the last six months there have been hundreds of quakes in the area ranging in magnitude from 2.0 to 3.0.
But it is not considered a risky area with a such low population, said Gu, who added that Fox Creek and the surrounding region is carefully monitored by the energy regulator.
“There are faults in this area that have been mapped, have been reported in that area, but nothing of significance,” he said.
“It’s a relatively safe area without major, major faults.”
Still, Gu said, there were two fairly large quakes in the area in January 2015, one of which had a magnitude of 4.4.
He wasn’t able to confirm that they were caused by fracking, but said it is “highly probable.”
The energy regulator said at the time that the 4.4 magnitude quake was likely caused by hydraulic fracturing. […]