The largest known earthquakes attributed to humans may be the two magnitude 7.0 events that shook the Gazli gas fields of Soviet Uzbekistan in 1976, followed by a third magnitude 7.0 quake eight years later. There remain many open questions, and more scientific investigations are underway on this sequence of earthquakes and many others within the state of Oklahoma.”The risk of setting off earthquakes by injecting fluid underground has been known since at least the 1960s, when injection at the Rocky Mountain Arsenal near Denver was suspended after a quake estimated at magnitude 4.8 or greater struck nearby—the largest tied to wastewater disposal until the one near Prague, Okla. A series of similar incidents have emerged recently. But, he said, “it is still the opinion of those at the Oklahoma Geological Survey that these earthquakes could be naturally occurring. In The study was also coauthored by Elizabeth Cochran of the U.S. Geological Survey. Oklahoma Sooners News / Crimson and Cream Machine / August 6 Sooners No. The water linked to the Prague quakes was a byproduct of oil extraction at one set of oil wells, and was pumped into another set of depleted oil wells targeted for waste storage.Scientists have linked a rising number of quakes in normally calm parts of Arkansas, Texas, Ohio and Colorado to below-ground injection. In a statement responding to the paper, Survey seismologist Austin Holland said the study showed the earthquake sequence could have been triggered by the injections. At this point, we are estimating that Oklahoma will hit peak demand on hospitals, ICU beds, and other critical medical supplies around April 21.”A copy of OSDH’s COVID-19 forecasting can be read by clicking (Hydrofracking itself is not implicated in significant earthquakes; the amount of water used is usually not enough to produce substantial shaking.) Get the latest Oklahoma City Thunder news, rumors, scores and highlights from Yardbarker, your source for the best Oklahoma City Thunder content on the web. In both cases, the brine and chemical-laced water has to be disposed of, often by injecting it back underground elsewhere, where it has the potential to trigger earthquakes. (Shannon Dulin)Keranen’s recordings of the magnitude 5.7 quake, and the aftershocks that followed, showed that the first Wilzetta fault rupture was no more than 650 feet from active injection wells and perhaps much closer, in the same sedimentary rocks, the study says. In contrast, the Oklahoma swarm happened years after injection began, similar to swarms at the The Wilzetta fault system remains under stress, the study’s authors say, yet regulators continue to allow injection into nearby wells. In In many of the wastewater injection cases documented so far, earthquakes followed within days or months of fluid injection starting. What made the swarm unusual is that wastewater had been pumped into abandoned oil wells nearby for 17 years without incident. Kevin Stitt announced Friday, May 29. A 2011 magnitude 5.7 quake near Prague, Okla., apparently triggered by wastewater injection, buckled U.S. Highway 62. (John Leeman)The recent boom in U.S. energy production has produced massive amounts of wastewater. A new study in the journal Geology is the latest to tie a string of unusual earthquakes, in this case, in central Oklahoma, to the injection of wastewater deep underground. KWTV News 9, the CBS affiliate where Robin Marsh worked, was the first. Regional and national news that may include Oklahoma but not it's primary focus need to be posted elsewhere.
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By Jason Silverstein April 23, 2020 / 1:06 PM / CBS News Ideally, injection should be kept away from known faults and companies should be required to provide detailed records of how much fluid they are pumping underground and at what pressure, said Keranen.
The Oklahoma Geological Survey has yet to issue an official account of the sequence, and wastewater injection at the site continues. In the study, researchers hypothesize that as wastewater replenished compartments once filled with oil, the pressure to keep the fluid going down had to be ratcheted up. Last year, a group at the U.S. Geological Survey also The magnitude 5.7 quake near Prague was preceded by a 5.0 shock and followed by thousands of aftershocks. On the heels of more than 22,000 specimens tested for COVID-19 in Oklahoma, the Oklahoma State Department of Health (OSDH) released today its modeling to forecast how the COVID-19 pandemic could occur in the state through May 1.Authored by Aaron M. Wendelboe, PhD; Justin Dvorak, PhD; and Michael P. Anderson, PhD, the COVID-19 modeling identifies the following key metrics for Oklahoma:“Over the past week, Oklahoma has significantly increased COVID-19 testing data due to expanded capacity at labs and more than 80 mobile testing locations across the state,” said Dr. Aaron Wendelboe, interim state epidemiologist. On the heels of more than 22,000 specimens tested for COVID-19 in Oklahoma, the Oklahoma State Department of Health (OSDH) released today its modeling to forecast how the COVID-19 pandemic could occur in the state through May 1.Authored by Aaron M. Wendelboe, PhD; Justin Dvorak, PhD; and …
The study authors also recommend sub-surface monitoring of fluid pressure for earthquake warning signs.