Oil and gas commission investigating quakes in northeast B.C.

Oil and gas commission investigating quakes in northeast B.C.

Honn Kao, a research scientist with the Geological Survey of Canada, said the probability is ‘very high’ that the tremors were caused by fracking

The British Columbia Oil and Gas Commission is investigating a series of earthquakes that one expert says were very likely caused by hydraulic fracturing, a fuel extraction process also known as fracking.

Earthquakes Canada reported a 4.5 magnitude quake just before 5:30 p.m. Thursday that was felt in Fort St. John, Taylor, Chetwynd and Dawson Creek in the province’s northeast. A second quake rattled the region about 45 minutes later and measured 4.0.

The oil and gas commission issued a brief statement Friday that said operations in the area were immediately shut down as a precaution and mitigation strategies will be put into place for any operations linked to seismic events.

Honn Kao, a research scientist with the Geological Survey of Canada, said the probability is “very high” that the tremors were caused by fracking, which involves injecting high-pressure liquid into the ground to extract oil and gas.

He said the survey established seismic stations in the region in 2013 and the stations automatically detected the quakes Thursday evening. It contacted the oil and gas commission, which investigated to see if there is a specific fracking operation nearby, he said.

READ MORE: 4.5 magnitude earthquake strikes near Fort St. John

“Our colleagues at the BC Oil and Gas Commission immediately realized that there was an active hydraulic fracturing operation in the vicinity of the epicentre,” he said.

He said the quakes are consistent with the pattern of fracking-induced events, and the preliminary assessment of the geological survey is that the tremors were likely caused by fracking. The geological survey and the oil and gas commission continue to investigate, he said.

“This is not 100 per cent proof … but we are continuing to work with the BC Oil and Gas Commission to get more detailed operation data.”

Geoff Morrison, B.C. manager of the Canadian Association of Petroleum Producers, said safe and sustainable natural gas development is a priority for operators in northeast B.C.

“Natural gas activity is strictly regulated and monitored, and the safety of communities located near operations is of paramount importance. We have a track record of robust regulations, employing best industry operating practices, and working to continuously improve our environmental performance,” he said in a statement.

The industry will continue to work closely with the oil and gas commission as it conducts its investigation, he added.

The commission has been monitoring induced seismicity caused by fuel extraction activities for some time. It has previously found that hydraulic fracturing and wastewater disposal can cause seismic activity.

It released two studies on induced seismicity caused by oil and gas activities, in 2012 and 2014. The most recent study found there were 231 seismic events caused by oil and gas operations in the Montney Trend, a natural gas reserve in northeast B.C., between August 2013 and October 2014.

The U.S. Geological Survey said in its tectonic summary of Thursday’s quake in northeast B.C. that there is evidence that some North American earthquakes have been triggered by human activities that have altered the stress conditions in the Earth’s crust, including fracking.

Kao said the majority of fracking does not induce earthquakes that are felt by people.

One of the reasons that fracking can cause earthquakes that are felt is because the water or fluids injected into the ground disturb naturally occurring geological faults.

In Canada, the highest recorded magnitudes of earthquakes caused by fracking are about 4.5 to 4.6, Kao said, adding that the duration of these earthquakes is short and they are usually shallow.

“Even though the preliminary assessment appears to indicate that this is an induced event, we are still working on it and making sure our analysis is as complete as possible.”

The Canadian Press

Like us on Facebook and follow us on Twitter.

Just Posted

Surrey Fire Service battled a dock fire along the Fraser River late Friday night (June 18). It was on Musqueam Drive, near Industrial Road, around 10:45 p.m. (Photo: Shane MacKichan)
Fire engulfs pier on Surrey side of the Fraser River

Dock has reportedly been unused for a long time

A mixed-use development with 69 market rental units and 10 commercial units is proposed for the 2300-block of King George Boulevard. (Thinkspace rendering)
Pair of South Surrey apartment proposals move forward

Council gives third reading to rezoning applications for market-rental and residential projects

Launched in January, Uplift Canada was founded by Tsawwassen resident Maggie Larocque. (submitted photo)
Surrey shelters get clothing collected June 26 by Uplift Canada

Book a pickup on website of the new non-profit, founded by Delta resident

A small pod of Pacific white-sided dolphins pass by close to shore in Campbell River June 16, 2021. Still capture from video courtesy of Kimberly Hart
VIDEO: Dolphin sunset captured from Vancouver Island shore

Spectacular setting for view of travelling pod of Pacific white-sided dolphins

Gary Abbott (left) and Louis De Jaeger were two of the organizers for the 2014 Spirit of the People Powwow in Chilliwack. Monday, June 21, 2021 is Indigenous Peoples Day. (Jenna Hauck/ Chilliwack Progress file)
Unofficial holidays: Here’s what people are celebrating for the week of June 20 to 26

Indigenous Peoples Day, Take Your Dog to Work Day, Onion Rings Day all coming up this week

Central Okanagan Grade 12 grads are set to get $500 each after a more than $1 million donation from a Kelowna couple. (File photo)
B.C. couple donating $500 to every Grade 12 student in the Okanagan

Anonymous donors identified as Kelowna entrepreneurs Lance and Tammy Torgerson

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

Rita Coolidge played the main stage at Vancouver Island Musicfest in 2017. (Black Press file photo)
This year’s Vancouver Island MusicFest to virtually showcase beauty of Comox Valley

Returning July 9 through 11 with more than 25 hours of music performances

British Columbia’s premier says he’s received a second dose of the Oxford-AstraZeneca COVID-19 vaccine. (Twitter/John Horgan)
B.C. premier gets 2nd dose of AstraZeneca COVID-19 vaccine

John Horgan shared a photo of himself on social media Friday afternoon holding a completed vaccination card

A lotto Max ticket is shown in Toronto on Monday Feb. 26, 2018.THE CANADIAN PRESS
No winning ticket sold for Friday’s $70 million Lotto Max jackpot

The huge jackpot has remained unclaimed for several weeks now

Police are asking for public assistance in locating Anthony Graham who has been charged with the murders of Kamloops brothers Carlo and Erick Fryer. (RCMP photo)
2 charged, suspect at large in killings of B.C. brothers linked to gang activity: RCMP

Kamloops brothers Erick and Carlo Fryer were found deceased in May on a remote Okanagan road

Most Read