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.

Get local stories you won't find anywhere else right to your inbox.
Sign up here

Just Posted

Paul Nestman’s Exemplary Service Award, which will be presented to him on Oct. 27 by Lt.-Gov. Janet Austin during a virtual ceremony. (Provided by Tammy Robinson)
‘Trust your team’: Victoria man receives Exemplary Service Award from Coast Guard

Paul Nestman, along with 36 others, receive awards during virtual ceremony

The ‘fall back’ time change Nov.1 means earlier sunrises – and sunsets – for British Columbians. (Nina Grossman/News Staff)
Clocks ‘fall back’ for B.C. residents on Nov. 1

Daylight Saving Time ends, B.C. still working on permanent switch to ‘spring ahead’ time

A sentencing hearing began for Joel Conway who was convicted of break and enter and sexual assault last year. (Kendra Crighton/News Staff)
Saanich man sentenced to three years in prison for breaking into woman’s home and sexually assaulting her

Crown is asking Joel Conway be sentenced to four years for both charges, to be served concurrent

Victoria fire crews quickly extinguished a multi-unit apartment building fire near Beacon Hill Park on Oct. 30. (Courtesy of Chief Paul Bruce)
Victoria fire crews extinguish multi-unit fire near Beacon Hill Park

Two people have suffered non-life-threatening injuries

Over the years, Janice Blackie-Goodine’s home in Summerland has featured elaborate Halloween displays and decorations each October. (File photo)
QUIZ: How much do you really know about Halloween?

Oct. 31 is a night of frights. How much do you know about Halloween customs and traditions?

FILE - In this Jan. 23, 1987 file photo, actor Sean Connery holds a rose in his hand as he talks about his new movie “The Name of the Rose” at a news conference in London. Scottish actor Sean Connery, considered by many to have been the best James Bond, has died aged 90, according to an announcement from his family. (AP Photo/Gerald Penny, File)
Actor Sean Connery, the ‘original’ James Bond, dies at 90

Oscar-winner was knighted by Queen Elizabeth II in 2000

President Donald Trump speaks at a campaign rally in Allentown, Pa. on Oct. 26. (AP Photo/Alex Brandon)
POLL: How closely are you following the U.S. presidential election?

It may feel like it’s been going on forever but the U.S.… Continue reading

This house at 414 Royal Ave. became notorious for its residents’ and visitors’ penchant for attracting police. It was also the site of a gruesome torture in August 2018. It was demolished in 2019. KTW
6-year sentence for Kamloops man who helped carve ‘rat’ into flesh of fellow gang member

Ricky Dennis was one of three men involved in the August 2018 attack

Cpl. Nathan Berze, media officer for the Mission RCMP, giving an update on the investigation at 11:30 a.m., Oct. 30. Patrick Penner photo.
VIDEO: Prisoner convicted of first-degree murder still at large from Mission Institution

When 10 p.m. count was conducted, staff discovered Roderick Muchikekwanape had disappeared

Among the pumpkin carvings created this year by Rick Chong of Abbotsford is this tribute to fallen officer Cont. Allan Young.
Abbotsford pumpkin carver’s creations include fallen police officer

Rick Chong carves and displays 30 pumpkins every year

An online fundraising campaign in support of the six-year-old boy, Edgar Colby, who was hit by a car on Range Road Oct. 25 has raised more than $62,000 in a day. (Submitted)
$62K raised in 1 day for boy in coma at BC Children’s after being hit by vehicle in Yukon

The boy’s aunt says the family is “very grateful” for the support they’ve received from the community

Police service dog Herc helped RCMP locate and arrest suspects in the Ladysmith area on Oct. 23, 2020, related to a stolen vehicle. (Submitted)
RCMP nab prolific property offender in Ladysmith with assist from police dog Herc

Police attempted to stop the vehicle but it fled from the area towards Chemainus.

Health care employees take extensive precautions when working with people infected or suspected of having COVID-19. THE CANADIAN PRESS/Chris Young
WorkSafeBC disallows majority of COVID-19 job injury claims

Health care, social services employees filing the most claims

Most Read