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

Liam’s Lowdown: it’s the little things that get you

At first, the name of my column was going to be Liam’s Lament

Despite brief shut downs Revelstoke’s Downie Timber weathering the storm

The forestry industry is taking a hit across the province

Glimpses of Revelstoke’s past for Aug. 21

Glimpses of Revelstoke’s past for Aug. 21

Two musical acts playing The Last Drop on Aug. 24

See John Michael Lind and She Hangs Brightly

VIDEO: B.C. Mountie killed by drunk driver honoured by memorial playground

Sarah Beckett Memorial Playground opens with ceremony in Langford

B.C. RCMP plane chases fleeing helicopter as part of major cross-border drug bust

The helicopter eventually landed at a rural property near Chilliwack

Renter of torched Okanagan home a British Army veteran, new Canadian

Owen Wilson was just beginning to settle into life in Canada when the blaze occurred

Thousands cycle to conquer cancer

The 11th annual Ride to Conquer Cancer took place Saturday morning, Aug. 24 in Surrey, B.C.

PHOTOS: Brazil military begins operations to fight Amazon fires

Amazon fires have become a global issue, escalating tensions between Brazil and European countries

Racist confrontation in Richmond parking lot caught on camera

Woman can be heard yelling racial slurs, swear words at woman in apparent parking dispute

Okanagan Nation bringing overdose awareness to Syilx Okanagan communities

The Purple Ribbon Campaign for International Overdose Awareness Day is Aug. 28

Meet the Okanagan’s newest homeless outreach team

The Vernon Homeless Outreach Team makes its first formal appearance Aug. 28 at Upper Room Mission

Groups ready campaign to help young voters identify ‘fake news’ in election

The media literacy campaign to focus on identifying misinformation and suspicious sources online

Most Read