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

Five fun things to do on Family Day in Campbell River

Outside or inside, we’ve got you covered with ideas for both

Campbell River City Council to look at more protection measures for great blue herons

Initial recommendation report came back with a few options, which will now be fleshed out

Campbell River Midget Tyees claim semi-final victory in overtime over Peninsula Eagles

The Campbell River Midget Tyees won their semi-final playoff game at Rod… Continue reading

Campbell River RCMP step up patrols to counteract rise in vehicle break-ins

In the last three weeks, The Campbell River RCMP has seen an… Continue reading

‘Blanket’ secondary suites bylaw for Campbell River stalls after first reading

Suites may be allowed in ‘all new construction’ but possibly not in ‘established neighbourhoods’

VIDEO: Minister reports ‘modest progress’ after blockade talks with First Nation

Wet’suwet’en hereditary chiefs say Coastal GasLink does not have authority to go through their lands

Henrique scores 2 as Ducks soar past Canucks 5-1

Vancouver tumbles out of top spot in Pacific Division

Trudeau cancels Caribbean trip amid pipeline protests across Canada

Protests against Coastal GasLink have disrupted rail service

B.C. VIEWS: Inaction on pipeline protests not a viable response

Columnist Frank Bucholtz on how the Coastal GasLink pipeline dispute got so bad

PHOTOS: Top 10 memories of the 2010 Olympics

Black Press Media’s Jenna Hauck, shares some of her most memorable images of 2010 Winter Games

#FoxForFiver: Support grows in B.C. to put Terry Fox on new $5 bill

Terry Fox’ Marathon of Hope raised money for cancer research

Registration opens soon for BC 55+ Games in Richmond

2020 55+ Games have been officially scheduled for Sept. 15 to 19

Trudeau confers with cabinet ministers as rail blockades continue

The Trudeau government has been criticized for not doing more to end the blockades

Canadian nurses’ unions warn national standards for coronavirus protection too low

President says safety protocols nationwide are inadequate compared to those in Ontario and other countries

Most Read