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

NDP Leader Rachel Notley stops in Red Deer on campaign trail

Notley promises hospital expansion, cath lab, pipelines and energy industry expansion

Town of Sylvan Lake looking for input on dog lake access

The Town held an open house about lake access for dogs on March 14

New high school a priority for Sylvan Lake, says Chinook’s Edge

Chinook’s Edge has prioritized a new high school in its 2020-2023 capital budget

West Central Peewee Tigers crowned SCAHL league champions

The Tigers are set to continue their dominating season at Peewee AA Provincials March 28

After mosque attacks, New Zealand bans ‘military-style’ guns

The gunman killed 50 in a Christchurch mosque

Teen girl accused in plot to attack Kamloops school with weapons out on bail

Judge warned the girl she would be back in jail if she threatened to shoot anyone

Oil prices, Alberta election call cloud Stampede chuckwagon auction expectations

The top money bid last year came from Versatile Energy Services, Ltd.

Lacombe hosts 6th Invasive Species Council Conference at LMC

Council looks to protect native ecological environments in Alberta

Pot industry welcomes decreased edibles tax, but unhappy medical tax remains

Taxes can increase the cost of medical cannabis by as much as 25 per ceny

‘It has to send a message:’ Broncos families await sentencing for truck driver

Jaskirat Singh Sidhu pleaded guilty to 29 counts of dangerous driving and apologized in court

MPs continue voting marathon as Tories protest shutdown of Wilson-Raybould motion

Multiple MPs have resigned from Trudeau’s Liberal cabinet

European, Canadian regulators to do own review of Boeing jet

Air Canada plans to remove the Boeing 737 Max from its schedule at least through July 1

Prime minister defends Liberal budget measures as sales effort gets underway

Conservatives under Andrew Scheer say it’s a spree funded by borrowing against the future

Most Read