Researchers were able to observe stress changes before and during an earthquake induced by hydraulic fracturing in Alberta, Canada, with the help of a phenomenon called seismic anisotropy.
Earth Sciences
Mar 2, 2022
0
21
As companies that drill for oil and natural gas using hydraulic fracturing consider recycling and reusing wastewater that surfaces from wells during the fracking process, chemists at The University of Toledo discovered that ...
Earth Sciences
Feb 17, 2022
0
38
Elderly people living near or downwind of unconventional oil and gas development (UOGD)—which involves extraction methods including directional (non-vertical) drilling and hydraulic fracturing, or fracking—are at higher ...
Environment
Jan 27, 2022
0
144
A Canadian-German research team have documented a new type of earthquake in an injection environment in British Columbia, Canada. Unlike conventional earthquakes of the same magnitude, they are slower and last longer. The ...
Earth Sciences
Dec 6, 2021
1
438
Tens of thousands of hydraulic fracturing wells drilled over the past few years from Pennsylvania to Texas to North Dakota have made unconventional oil and gas production part of everyday life for many Americans. This raises ...
Earth Sciences
Aug 19, 2021
4
459
Hydraulic fracturing to extract trapped fossil fuels can trigger earthquakes. Most are so small or far from homes and infrastructure that they may go unnoticed; others can rattle windows, sway light fixtures and jolt people ...
Earth Sciences
May 3, 2021
2
31
Frequent use of exemptions may undermine public health protections of oil and gas setback policies, according to a new study led by researchers at the research institute PSE Healthy Energy, Harvard University, and Nicholas ...
Environment
Apr 28, 2021
0
9
California plans to stop issuing new fracking permits by 2024, Governor Gavin Newsom said Friday, as the state looks toward progressively halting fossil fuel extraction in the coming decades.
Environment
Apr 24, 2021
3
47
When hydraulic fracturing operations ground to a halt last spring in the Kiskatinaw area of British Columbia, researchers expected seismic quiescence in the region. Instead, hundreds of small earthquakes occurred for months ...
Earth Sciences
Apr 20, 2021
0
17
Hydraulic fracturing, also known as "fracking," relies on water, sand and other chemicals to clear the way for engineers to remove oil or gas from shale—porous rocks below the ground.
Analytical Chemistry
Feb 12, 2021
6
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