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Fracking triggered 2014 earthquake in northeastern B.C.

Hydraulic fracturing involves pumping water and chemicals deep into earth to fracture shale rock beds and release natural gas for extraction. (Brennan Linsley/The Associated Press)

Hydraulic fracturing involves pumping water and chemicals deep into earth to fracture shale rock beds and release natural gas for extraction. (Brennan Linsley/The Associated Press)

Quake one of world’s largest ever triggered by hydraulic fracturing

By Betsy Trumpener, CBC News, Aug 26, 2015

Fracking triggered a 4.4-magnitude earthquake in northeastern B.C. last year, CBC News has learned, making it one of world’s largest earthquakes ever triggered by the controversial process.

B.C.’s Oil and Gas Commission confirmed the cause of the earthquake in an email statement to CBC this week, saying it was “triggered by fluid injection during hydraulic fracturing.”

The 4.4-magnitude quake was felt in Fort St. John and Fort Nelson in August 2014. It was preceded by a 3.8-magnitude earthquake in late July, also caused by fracking.

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