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

While Newfoundland thaws, that province’s junior curling teams take to Langley ice

Coach Dennis Bruce said his team left for Langley hours before the storm hit

VIDEO: The sporting life explored at Langley Centennial Museum

A history of athletic fashions with Ivan Sayers runs Feb. 1 to May 18

Crime shifts to Creek Stone from near Langley homeless shelter: RCMP

More calls are coming near the supportive housing complex, fewer from Gateway of Hope

Youth hit with gun butt during fight at Langley mall

RCMP are investigating the fight between two groups of youths

Snowy freeway crashes in Aldergrove ‘overwhelm’ fire crews

Luckily, no firefighters were seriously injured during last week’s weather warnings

Four things ‘not’ to do if you run into Prince Harry and Meghan in B.C.

Here is a list of some things you definitely should NOT do, according to the BBC

B.C.-based Coulson Aviation C-130 crashes in Australia

Three people are confirmed dead in the crash in New South Wales

New nasal spray launched in Canada to combat hypoglycemic shock in diabetics

Baqsimi is a nasal spray contains three milligrams of glucagon

B.C. RCMP spent roughly $750K on massive manhunt for Port Alberni men

Manitoba RCMP helped with 17-day search through the province’s northern terrain

Future space homes could be made of mushrooms

NASA explores use of fungi to build structures in space

All Carlton Cards stores closing in the coming weeks

Schurman Retail Group stores across North America will close, including 79 in Canada

Weather warning: 80 mm of rain expected overnight in Metro Vancouver

Environment Canada is urging caution when driving

Man killed by police in Lytton called 911, asking to be shot: RCMP

Howard Schantz, also known as Barry Schantz was killed following a standoff at his Lytton home

Most Read