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

Local art on display at annual Hearth studio sale

Residents of and visitors to Fernie lined up outside Sarah Pike’s home… Continue reading

New location, new energy for The Good Earth

The Good Earth celebrated their grand opening in a new space on… Continue reading

Fernie Arts Co-op celebrates upgraded space with sale

The Fernie Arts Co-op was a busy place on Saturday, as they… Continue reading

Holiday Artisan Fair at The Arts Station showcases local talent

The Arts Station was bustling and alive with artisans, shoppers and live… Continue reading

Christmas cheer for charity

Tis the season of giving in the Elk Valley, as we see… Continue reading

VIDEO: Success of wildlife corridors in Banff National Park has advocates wanting more

Demand for more highway protection escalated after seven elk were killed by a semi-trailer near Canmore

B.C. VIEWS: Hunger does not end with the season

Despite innovations in food distribution, the need is still there in B.C. communities

Sharks beat Canucks 4-2 to snap 6-game skid

Vancouver visits Vegas on Sunday

Fans sing Canadian anthem after sound system breaks at BMW IBSF World Cup

The Canadians in attendance made sure their team and flag were honoured on the podium

VIDEO: Fire destroys Big White Ski Resort chalet

Social media eulogies peg the property, nicknamed “The Pharamacy,” as both loved and hated

Prince George RCMP use bait packages to catch porch pirates over the holidays

First-in-Canada program with Amazon looks to combat parcel theft

Nanaimo mechanical engineer creates thief tracking program

Nanaimo Thief Tracking lets users plot and share information about thefts online

Mayor wants B.C. to institutionalize severely mental ill people who are homeless

Those suffering from mental health conditions, such as schizophrenia, need specialized care, mayor says

Most Read