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

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

Preliminary designs of the new West Kelowna city hall, which is about to begin the design phase. (City of West Kelowna)
West Kelowna chooses architect for new city hall, library

Johnston Davidson Architecture will design West Kelowna’s first city hall and library building

Dr. Hadi Mohammadi is the lead researcher at UBCO's Heart Valve Performance Lab. (University of BC Okanagan)
UBCO researches redesign mechanical heart valve to improve blood flow

The redesigned mechanical heart valve will also help prevent clots

A sign indicating a COVID-19 testing site is displayed inside a parking garage in West Nyack, N.Y., Monday, Nov. 30, 2020. The site was only open to students and staff of Rockland County schools in an effort to test enough people to keep the schools open for in-person learning. (AP Photo/Seth Wenig)
4 more deaths, 54 new cases of COVID-19 in Interior Health

This brings the total to 66 deaths in the region

11 more cases of COVID-19 have been linked to a cluster on Big White Mountain. Pictured above is TELUS park at Big White Ski Resort, Jan. 26. (Big White Ski Resort)
11 more cases of COVID-19 linked to Big White cluster

This brings the total case count to 225, according to health authorities in a Tuesday update

Okanagan Clinical Trials is looking at gut bacteria as a way of slowing down the development of Alzheimer’s. (Alzheimer Society of B.C. photo)
Okanagan study looking for volunteers of people diagnosed with Alzheimer’s

The study is looking at how gut bacteria may help slow the disease

Dr. Penny Ballem, a former deputy health minister, discusses her role in leading B.C.’s COVID-19 vaccination program, at the B.C. legislature, Jan. 22, 2021. (B.C. government)
B.C. holds steady with 407 new COVID-19 cases Tuesday

14 deaths, no new outbreaks in the health care system

Employment, Workforce Development and Disability Inclusion Minister Carla Qualtrough responds to a question during a news conference Thursday August 20, 2020 in Ottawa. THE CANADIAN PRESS/Adrian Wyld
Easing rules for parental benefits created inequities among parents, documents say

Employment Minister Carla Qualtrough’s office says the government will make any necessary changes

People walk along a pedestrianized zone of Sainte-Catherine street in Montreal, Monday, May 18, 2020, as the COVID-19 pandemic continues in Canada and around the world. Newly released statistics point to a major drop in police-recorded crime during the first eight months of the COVID-19 pandemic. THE CANADIAN PRESS/Graham Hughes
Crime down in first 8 months of pandemic, but mental health calls rise: StatCan

The agency says violent crimes such as assault dropped significantly

Cowichan Tribes chief Squtxulenhuw (William Seymour) confirmed the first death in the First Nations community from COVID-19. (File photo)
Cowichan Tribes confirms 1st death amid growing COVID-19 outbreak

Shelter-in-place order has been extended to Feb. 5

(Pixabay)
B.C. teacher gets 1 day suspension after ‘aggressively’ throwing dumbbell at student

Documents show the weight would have hit the student if they didn’t catch it

Ponderosa Primary Care Centre in Penticton is considered a model for care clinics going forward by the South Okanagan Division of Family Practice. (Monique Tamminga)
Primary Care Clinic funding could be a cure for South Okanagan Similkameen doctor shortage

Ponderosa Primary Care Centre in Penticton is a model for future care clinics and doctor recruitment

Vernon’s Barb and Denis Murdoch, pictured at Lake Louise in 1987, will be inducted into the builder category of the B.C. Volleyball Hall of Fame, Class of 2021, on Feb. 15. (Murdoch family photo)
North Okanagan volleyball couple earn Hall of Fame call

Denis and Barb Murdoch will be inducted into B.C. Volleyball Hall of Fame in builder category

Eagle River Secondary Grade 9 student Cody Hutchinson spearheaded the Digital Detox Challenge in which participants will give up their cell phones during school days for two weeks straight. (Contributed)
Sicamous student challenges himself, peers to go nine school days cell phone free

Cody Hutchinson hopes Digital Detox Challenge will give students opportunity to reconnect

Cannabis bought in British Columbia (Ashley Wadhwani/Black Press Media)
Is it time to start thinking about greener ways to package cannabis?

Packaging suppliers are still figuring eco-friendly and affordable packaging options that fit the mandates of Cannabis Regulations

Most Read