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.