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

City of Surrey to remove eight dead trees along stretch of road where SUV was hit

Assessment confirms tree that fell was dead; others to be removed ‘early this week’

CCTV cameras help Surrey RCMP arrest two bank robbery suspects

The robberies were in North Surrey on Nov. 7 and Oct. 1

New Surrey Police force ‘swallowing up’ city’s funds, Annis says

City councillor says draft city budget shows new force coming at expense of ‘everything else’ in the city

Guitar ‘swap & sale’ planned at Cloverdale’s Shannon Hall

40-plus vendors are signed up for event on Saturday, Nov. 23

Totems, Mariners win South Fraser volleyball titles

South Surrey teams now advance to provincial high school championships in Langley

Cold, stormy winter forecast across much of Canada, The Weather Network predicts

In British Columbia temperatures will be slightly above normal and precipitation will be just below normal

UPDATED: Vancouver Island’s Joe gets suspended sentence in Teddy the dog cruelty case

Melissa Tooshley expected in court on Thursday in same case

Nineteen boats carrying invasive mussels stopped at B.C. borders

Waters of Columbia-Shuswap still test mussel-free

Woman ‘horrified’ after being told to trek 200 kilometres home from Kamloops hospital

‘I can’t get from Kamloops back to 100 Mile House injured, confused… no shoes, no clothes whatsoever’

Canadian universities encourage exchange students in Hong Kong to head home

UBC said 11 of its 32 students completing programs in Hong Kong have already left

Midget no more: Sweeping division name changes coming to minor hockey in Canada

Alpha-numeric division names will be used for the 2020-2021 season and beyond

Duncan man gets suspended sentence in Teddy the dog cruelty trial

Joe also gets lifetime ban on owning animals

B.C. pushes for greater industry ‘transparency’ in gasoline pricing

Legislation responds to fuel price gap of up to 13 cents

B.C. woman ordered to return dog to ex-boyfriend for $2,000

After the two broke up, documents state, they agree to share custody of the dog, named Harlen

Most Read

l -->