How shale fracking led to an Ohio town’s first 100 earthquakes
2013-08-22 0:00

From: phys.org



Since records began in 1776, the people of Youngstown, Ohio had never experienced an earthquake. However, from January 2011, 109 tremors were recorded and new research in Geophysical Research-Solid Earth reveals how this may be the result of shale fracking.

In December 2010, Northstar 1, a well built to pump wastewater produced by fracking in the neighboring state of Pennsylvania, came online. In the year that followed seismometers in and around Youngstown recorded 109 earthquakes; the strongest being a magnitude 3.9 earthquake on December 31, 2011.
The study authors analyzed the Youngstown earthquakes, finding that their onset, cessation, and even temporary dips in activity were all tied to the activity at the Northstar 1 well. The first earthquake recorded in the city occurred 13 days after pumping began, and the tremors ceased shortly after the Ohio Department of Natural Resources shut down the well in December 2011.

Dips in earthquake activity correlated with Memorial Day, the Fourth of July, Labor Day, and Thanksgiving, as well as other periods when the injection at the well was temporarily stopped.

"In recent years, waste fluid generated during the shale gas production - hydraulic fracturing, had been increasing steadily in United States. Earthquakes were triggered by these waste fluid injection at a deep well in Youngstown, Ohio during Jan. 2011 - Feb. 2012. We found that the onset of earthquakes and cessation were tied to the activity at the Northstar 1 deep injection well. The earthquakes were centered in subsurface faults near the injection well. These shocks were likely due to the increase in pressure from the deep waste water injection which caused the existing fault to slip," said Dr. Won-Young Kim. "Throughout 2011, the earthquakes migrated from east to west down the length of the fault away from the well—indicative of the earthquakes being caused by expanding pressure front."


Article from: phys.org




Related Articles


Latest News from our Front Page

Not Again: More US AID, Missiles Shipped to al Qaeda, al Nusra and ISIS in Syria, Iraq
2015-03-06 4:28
Two weeks ago, 21WIRE reported on how ISIS and other terrorists militants operating in Syria and Iraq are receiving regular weapons and ‘supply drops’ – forming a ‘rat line’ which seems to be playing a crucial role in keeping this highly profitable conflict going on both sides. This week, it’s been reported that Jabhat Al-Nusra fighters have been brandishing US-supplied ...
Swedish parliament removes Baroque artist's bare breasted painting for offending feminists and Muslims
2015-03-06 3:28
A nude painting named Juno, which was painted by baroque artist G E Schröder and has hung in the dining room of the Swedish Parliament for 30 years has been taken down for fear of offending the sensitivities of feminists and Muslim visitors, Swedish newspaper, The Local reported on Thursday. Explaining the ban on the baroque breasts, a source from the ...
White US children will be minorities by 2020 after immigrant 'baby boom', Census reveals
2015-03-05 19:50
This is the result of an ongoing trend of declining birth among white Americans and a baby boom among immigrant groups, as well as a surge in immigration. By the year 2020, 50.2percent of all children in the US are expected to be non-white, according to the Census. By 2044, whites will be outnumbered by minorities. The Census study, released ...
New Jersey Shopkeeper Hangs 'White History Month' Sign In Window
2015-03-05 18:08
A deli owner in Flemington, New Jersey, has angered many of his neighbors by posting a sign on his window that reads, "Celebrate Your White Heritage in March White History Month." Jim Boggess, who is the owner of Jimbo's Deli, says he put up the sign to remind everyone that they should be proud of their race and culture. "No matter what ...
The Viking ”Maine Penny” Mystery
2015-03-05 3:41
In 1957, during his second year of digging at the Goddard site; a large prehistoric Indian trade village in Penobscot Bay on the central Maine coast, local resident and amateur archaeologist Guy Mellgren found a small silver coin. The coin is later identified by experts as a Norse silver penny dating to the reign of Olaf Kyrre, king of Norway ...
More News »