butters
High on a Hill
- Joined
- Jul 2, 2009
- Posts
- 85,778
edit: the material first posted was relating to Texas and the Permian Basin, not Oklahoma, though it was mentioned in one of the Texas articles and was one of the additional windows i had open.
so here's some of the Oklahoma stuff:
a lot more detail here about the abrupt rise in both frequency and (often) strength of quakes. Numbers rose from one or two a year (if that) to 109 in 2013 to a 50% increase Oct.'13 to May '14, to 567 (mag.3 at least) by end 2014, to the decreases seen in 2016-17 where waste-water sites were closed:
https://en.wikipedia.org/wiki/Oklahoma_earthquake_swarms_(2009–present)
Back to what I originally posted, which was about Texas but made the point that Oklahoma dragged its feet in facing what was causing the problem swarms.
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4,000 active wells have been drilled to cope with the five-fold increase of waste-water from fracking in the Permian Basin.
so here's some of the Oklahoma stuff:
https://www.caagesf.org/faq/often-a...d the rest are induced by wastewater disposal.Beginning in 2009, the frequency of earthquakes in the U.S. state of Oklahoma rapidly increased from an average of fewer than two 3.0+ magnitude earthquakes per year since 1978 to hundreds each year in the 2014–17 period.
a lot more detail here about the abrupt rise in both frequency and (often) strength of quakes. Numbers rose from one or two a year (if that) to 109 in 2013 to a 50% increase Oct.'13 to May '14, to 567 (mag.3 at least) by end 2014, to the decreases seen in 2016-17 where waste-water sites were closed:
In March 2017, an updated seismic hazard forecast, which like the 2016 version included the risk from induced earthquakes, was released by the United States Geological Survey. The new forecast incorporated earthquakes that occurred in 2016.[59] In 2017 earthquake activity decreased dramatically compared to the previous years, with 294 magnitude 3.0 or greater earthquakes recorded in the state by mid-December. This was less than half the number of similar magnitude quakes recorded in 2016. A correlation between numerous waste water injection sites being closed or forced to reduce the volume of injection was reported by USGS geologists to have a direct link to the reduction in earthquakes.[60]
https://en.wikipedia.org/wiki/Oklahoma_earthquake_swarms_(2009–present)
Back to what I originally posted, which was about Texas but made the point that Oklahoma dragged its feet in facing what was causing the problem swarms.
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4,000 active wells have been drilled to cope with the five-fold increase of waste-water from fracking in the Permian Basin.
https://www.msn.com/en-us/news/tech...xas-is-forced-to-act/ar-AATD8QG?ocid=msedgntpThis region of the Permian Basin, from which 40 percent of US oil and 15 percent of its gas are extracted, experienced nine earthquakes greater than three-magnitude in 2019, 51 in 2020 and 176 in 2021, according to market intelligence firm Sourcenergy.
What causes earthquakes is not fracking itself, but injecting the wastewater into wells. The Railroad Commission of Texas, which regulates oil activities, has had to impose new rules on water disposal.
Drilling companies must deal with huge quantities of water that come up when fracking -- water makes up about 80 percent of the fluid pumped out of the ground.
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"In some of these spaces, you got these cracks or fault lines. You're pushing it harder and harder, and maybe you hit that fault line and maybe it makes it slip and that's an earthquake."
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"In Oklahoma, they basically kind of dragged their feet for years and denied that there was any problem" when earthquakes increased in the 2010s, Adler said.
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