Confirmed: 4.6-Magnitude Earthquake in British Columbia Caused by Fracking (Likely World's Largest)

Fluid injection from hydraulic fracturing, or fracking, triggered a 4.6-magnitude earthquake that struck northeast British Columbia (BC) over the summer, the Canadian province's energy regulator has confirmed. It's the largest fracking-caused earthquake in the province to date, according to The Canadian Press.
Or, more significantly, it could very likely be the largest fracking-caused earthquake in the world.
BREAKING @BCOGC confirms to #CBC #fracking caused 4.6 BC #earthquake 1 of biggest ever caused by fracking. #lng https://t.co/7BuBhHESW7— Betsy Trumpener (@Betsy Trumpener)1450229874.0
"This seismic event was caused by hydraulic fracturing," Ken Paulson, CEO of the BC Oil and Gas Commission, said in a statement.
Fracking, which has helped drive U.S.' gas prices below $2 a gallon, involves shooting large quantities of water and chemicals at high pressure to release gas and oil from layers of subterranean shale.
The earthquake struck this past August about 110 kilometers northwest of Fort St. John in BC. Its epicenter was three kilometers from a fracking site operated by Progress Energy, prompting the natural gas production company to temporarily halt operations after the quake hit.
The company said in a statement that it's taking the incident very seriously and it has 17 monitoring stations in its operating area to accurately detect seismic activity.
Progress Energy also has the dubious honor of holding the previous record for the largest known fracking-caused quake in BC with a 4.4-magnitude tremor in 2014.
As CBC News noted, the 4.6 August quake may likely be the largest in the world caused by fracking. That's because after a 4.4 struck Alberta in Jan. 2015, scientists told the publication at the time it was already the world's largest quake caused by fracking.
Honn Kao, a research scientist with Geological Survey of Canada, told CBC News after the 4.6 hit, "If this is proven to be linked to hydraulic fracturing, this would be a world record in terms of size."
Food & Water Watch observed that "while fracking itself can cause earthquakes, they are smaller and less frequently felt than earthquakes produced from underground injection control wells." Food & Water Watch added:
A study in Seismological Research Letters found that fracking was the likely culprit of hundreds of small tremors in Ohio during 2013; another Ohio-based study that came out in 2015 pinpointed fracking as the cause of a 3.0 magnitude earthquake near Poland Township. In 2011, fracking was associated with a 3.8 magnitude earthquake in British Columbia, Canada; and that same year, in Blackpool, England, two earthquakes were directly linked to fracking operations. Fracking has also been linked to an earthquake that was felt in Garvin County, Oklahoma in 2011.
Paulson said in his statement that fewer than one percent of fracking operations trigger seismic activity, and those quakes tend to be low magnitude and cause little damage.
Still, as Geological Survey of Canada seismologist John Cassidy told The Globe and Mail, "more and bigger" earthquakes triggered by gas extraction could be on the horizon.
“The overall pattern is that there’s an increase in the number of induced earthquakes—and there is an overall or average increase in the magnitude as well.”
A study from Dr. Cassidy and his colleagues found that northeast BC recorded 24 earthquakes in 2002-03 before fracking kicked off. In 2010-11, that number jumped to 189 earthquakes during the peak of fracking activity in the Horn River Basin.
This trend mirrors the alarming uptick of earthquakes striking Oklahoma. Before 2009, Oklahoma had two earthquakes of magnitude 3.0 or greater each year, but now there are two a day, giving it the distinction of the earthquake capital of the U.S., if not the world.
Although fracking isn't the direct cause of Oklahoma's earthquake swarm, it is related to the process. The scientific consensus is that the injection of large volumes of toxic wastewater left over from oil drilling and fracking operations into underground wells has triggered the state’s now daily earthquakes.
Sierra Club threatens to sue four #Oklahoma #fracking companies for causing #earthquakes. https://t.co/wNfSVbzBGn … https://t.co/ME3ozbjiRv— Tim Ream (@Tim Ream)1446602093.0
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- Redwoods are the world's tallest trees.
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They are among the largest trees in the world, descendants of forests where dinosaurs roamed.
Pixabay / Simi Luft
<p><span>Until recently, measuring these trees meant scaling their 80 meter high trunks with a tape measure. Now, a team of scientists from University College London and the University of Maryland uses advanced laser scanning, to create 3D maps and calculate the total mass.</span></p><p>The results are striking: suggesting the trees <a href="https://www.nature.com/articles/s41598-020-73733-6" target="_blank" rel="noopener noreferrer">may be as much as 30% larger than earlier measurements suggested.</a> Part of that could be due to the additional trunks the Redwoods can grow as they age, <a href="https://www.nature.com/articles/s41598-020-73733-6" target="_blank" rel="noopener noreferrer">a process known as reiteration</a>.</p>New 3D measurements of large redwood trees for biomass and structure. Nature / UCL
<p>Measuring the trees more accurately is important because carbon capture will probably play a key role in the battle against climate change. Forest <a href="https://www.wri.org/blog/2020/09/carbon-sequestration-natural-forest-regrowth" target="_blank">growth could absorb billions of tons</a> of carbon dioxide from the atmosphere each year.</p><p>"The importance of big trees is widely-recognised in terms of carbon storage, demographics and impact on their surrounding ecosystems," the authors wrote<a href="https://www.nature.com/articles/s41598-020-73733-6" target="_blank"> in the journal Nature</a>. "Unfortunately the importance of big trees is in direct proportion to the difficulty of measuring them."</p><p>Redwoods are so long lived because of their ability to <a href="https://www.nature.com/articles/s41598-020-73733-6" target="_blank" rel="noopener noreferrer">cope with climate change, resist disease and even survive fire damage</a>, the scientists say. Almost a fifth of their volume may be bark, which helps protect them.</p>Carbon Capture Champions
<p><span>Earlier research by scientists at Humboldt University and the University of Washington found that </span><a href="https://www.sciencedirect.com/science/article/pii/S0378112716302584" target="_blank" rel="noopener noreferrer">Redwood forests store almost 2,600 tonnes of carbon per hectare</a><span>, their bark alone containing more carbon than any other neighboring species.</span></p><p>While the importance of trees in fighting climate change is widely accepted, not all species enjoy the same protection as California's coastal Redwoods. In 2019 the world lost the equivalent of <a href="https://www.worldwildlife.org/threats/deforestation-and-forest-degradation" target="_blank" rel="noopener noreferrer">30 soccer fields of forest cover every minute</a>, due to agricultural expansion, logging and fires, according to The Worldwide Fund for Nature (WWF).</p>Pixabay
<p>Although <a href="https://c402277.ssl.cf1.rackcdn.com/publications/1420/files/original/Deforestation_fronts_-_drivers_and_responses_in_a_changing_world_-_full_report_%281%29.pdf?1610810475" target="_blank" rel="noopener noreferrer">the rate of loss is reported to have slowed in recent years</a>, reforesting the world to help stem climate change is a massive task.</p><p><span>That's why the World Economic Forum launched the Trillion Trees Challenge (</span><a href="https://www.1t.org/" target="_blank" rel="noopener noreferrer">1t.org</a><span>) and is engaging organizations and individuals across the globe through its </span><a href="https://uplink.weforum.org/uplink/s/uplink-issue/a002o00000vOf09AAC/trillion-trees" target="_blank" rel="noopener noreferrer">Uplink innovation crowdsourcing platform</a><span> to support the project.</span></p><p>That's backed up by research led by ETH Zurich/Crowther Lab showing there's potential to restore tree coverage across 2.2 billion acres of degraded land.</p><p>"Forests are critical to the health of the planet," according to <a href="https://www.1t.org/" target="_blank" rel="noopener noreferrer">1t.org</a>. "They sequester carbon, regulate global temperatures and freshwater flows, recharge groundwater, anchor fertile soil and act as flood barriers."</p><p><em data-redactor-tag="em" data-verified="redactor">Reposted with permission from the </em><span><em data-redactor-tag="em" data-verified="redactor"><a href="https://www.weforum.org/agenda/2021/03/redwoods-store-more-co2-and-are-more-enormous-than-we-thought/" target="_blank">World Economic Forum</a>.</em></span></p>EcoWatch Daily Newsletter
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