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

134 new cases of COVID-19 on Friday

First day over 100 cases since July 31

RCMP Major Crimes Unit lay Manslaughter charge against youth

The RCMP Major Crimes Unit have laid a manslaughter charge against a 13-year-old boy from Maskwacis.

1 in 7 Albertans have been tested for COVID-19

56 additional cases Thursday, 1,107 active cases remain in the province

Seven vying to lead ECN

Challengers to incumbent include NGCI president

Two females arrested for carjacking in Leduc; sword and bear spray used as weapon

Wetaskiwin and Maskwacis female arrested for carjacking.

Protestors for Indigenous Lives Matter gather in Wetaskiwin

Protestors gathered along 56 St Wetaskiwin, Alta. August 4, 2020 for Indigenous Lives Matter.

Collapse of Nunavut ice shelf ‘like losing a good friend:’ glaciologist

The ice shelf on the northwestern edge of Ellesmere Island has shrunk 43 per cent

13-year-old charged in death of boy, 10 in Maskwacis

The RCMP Major Crimes Unit have laid a manslaughter charge against a 13-year-old boy from Maskwacis.

‘Caught up in the frenzy:’ Oilers 50/50 draw breaking ticket sale records

Previous record was held by Toronto Raptors fans when a 50/50 raffle reached $2 million

Alberta jury trials to resume next month at offsite locations due to COVID-19

About 12 locations across Alberta may host the trials in halls, hotels and community centres

Alberta school curriculum to focus on basics, keep out political bias: minister

NDP education critic says the kindergarten to Grade 4 changes should have been implemented a year ago

Statistics Canada says country gained 419,000 jobs in July

National unemployment rate was 10.9 per cent in July, down from the 12.3 per cent recorded in June

Canada plans $3.6 billion in retaliatory tariffs on U.S. in aluminium dispute

The new Canada-United States-Mexico Agreement that replaced NAFTA went into force on July 1

Walmart to make face masks mandatory for customers across Canada

Requirement goes into effect on Wednesday, Aug. 12 across Canada

Most Read