Did Alberta Just Break a Fracking Earthquake World Record?
Hydraulic fracturing, a technology used to crack open difficult oil and gas formations, appears to have set off a swarm of earthquakes near Fox Creek, Alberta, including a record-breaking tremor with a felt magnitude of 4.4 last week.
That would likely make it the largest felt earthquake ever caused by fracking, a development that experts swore couldn’t happen a few years ago.
Fracking operations in British Columbia’s Montney shale generated similar seismic activity of that magnitude last year, and earthquake scientists at Ontario’s Western University are still analyzing the two events to see which is the largest.
“The location of the earthquake is consistent with being induced by hydraulic fracturing operations,” confirmed Peter Murchland, a spokesman for the Alberta Energy Regulator.
“The AER regards all changes in seismicity that have the potential to indicate an increased risk associated with hydrocarbon production seriously,” Murchland added.
Jeffrey Gu, a physics professor at the University of Alberta, said the Alberta Geological Survey and other agencies were investigating the Fox Creek swarm, which hit about 260 kilometres northwest of Edmonton. But Gu said he could not disclose their findings at this time. He offered no details on the scale or scope of the investigation.
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