A hydraulic fracturing, or fracking, site as seen from the air near Fort St. John, B.C. JeremyWilliams.ca

B.C. regulator says fracking caused earthquakes near Fort St. John

Hydraulic fracturing involves injecting water, sand and chemicals into a well under pressure to break up tight underground rock and free trapped oil and gas.

The B.C. Oil and Gas Commission has blamed fracking for three earthquakes in northeastern B.C. last month.

The provincial regulator says the events 20 kilometres south of Fort St. John on Nov. 29 occurred because of fluid injections during hydraulic fracturing at a Canadian Natural Resources Ltd. wellsite.

The events, which were felt but caused no surface damage, measured 3.4, 4.0 and 4.5 magnitude.

Fracking operations within the lower Montney formation were suspended after the earthquakes and are to remain suspended at the multi-well pad involved pending the results of a detailed technical review.

The commission says seven wells into the upper Montney formation had previously been drilled and completed by the Calgary-based company at the well pad with no seismic events larger than magnitude 2.5 detected.

The immediate shut down of operations is required when an induced seismic event in that region reaches or exceeds a 3.0 magnitude.

Hydraulic fracturing involves injecting water, sand and chemicals into a well under pressure to break up tight underground rock and free trapped oil and gas.

Read more: 4.5 magnitude earthquake strikes near Fort St. John

Read more: Northeast B.C. community cut off by slide has heat, power, but no answers

Companies in this article: (TSX:CNQ)

The Canadian Press

Like us on Facebook and follow us on Twitter.

Just Posted

Fire damages Vancouver Island medical marijuana facility

Fire broke out at an industrial facility at the corner of Drinkwater… Continue reading

Memorable weekend of family fun at Lake Cowichan celebrates 75th anniversary

From parading a birthday cake through town to the return of timbersports, the big event was great

One dead after work-place accident

Incident under investigation

Striking Western Forest Products workers could lose benefits in September

Union, forest company at odds over Vancouver Island benefit payments as strike enters third month

Editorial: Questionable decision

Mayor effectively invited intimidating public display by having people show what side they were on

Ethnic media aim to help maintain boost in voting by new Canadians

Statistics Canada says new Canadians made up about one-fifth of the voting population in 2016

Retired Vancouver Island teacher ‘Set for Life’ after $675K lottery win

Patrick Shannon plans to buy new sails for his sailboat

Speculation tax forces sale of Greater Victoria’s iconic ‘Tulip House’

Bob and Jan Fleming selling their retirement home famous for its thousands of tulips

New police force in Surrey must avoid VPD, RCMP errors made in Pickton case: Oppal

Boots are scheduled to be on the ground by spring 2021

Man at centre of dropped HIV-disclosure case sues province and 10 cops

Brian Carlisle of Abbotsford says Mission RCMP defamed him and were ‘negligent’ in their investigation

Conan turns to the Property Brothers for tips on buying Greenland

Jonathan Scott suggests removing glaciers and mountains to bring in ‘more natural light’

Forests minister visits B.C. town rocked by multiple mill shutdowns

A third of Mackenzie turns out for rally, not much to cheer about

B.C. sockeye returns drop as official calls 2019 ‘extremely challenging’

Federal government says officials are seeing the same thing off Alaska and Washington state

Most Read