A series of 11 minor quakes in the Youngstown area because of disposal of wastewater from oil and gas drilling in a northeast Ohio well has shocked, said a seismologist.
John Armbruster of Columbia University’s Lamont-Doherty Earth Observatory in Palisades, New York said it will take a year for the water-waste rumblings to settle down in the earth. The research is in progress on study of the now-shuttered injection well at Youngstown and seismic activity.
A process of extracting gas from the underground shale by drilling operations when brine wastewater is dumped in wells is also known as Fracking. It is a major concern for environmentalists and property owners. Armbruster said that Arkansas, Colorado, Oklahoma and Ashtabula in far northeast Ohio acknowledged aftershocks because of continuous quakes in Ohio.
Gallons of brine wastewater are injected each day into the Youngstown well, ever since 2010, agreed Owner of Northstar Disposal Services LLC. To prevent further earthquakes, the company has stopped injection as a precaution from 30th December 2011.
State officials on 31st December 2011 announced that the highest earthquake of 4.0 magnitudes measured on richter scale because of continuous injection of wastewater near fault line has triggered seismic activity. The four inactive wells within a five-mile radius of the Youngstown well have been kept close because they have also experienced pressure, although they are different wells and not for fracking.
Despite shutdown of injection at the Youngstown well, the affected areas will receive aftershocks, pointed out Armbruster. He admitted: “The earthquakes will trickle on as a kind of a cascading process once you’ve caused them to occur.” As well he explained: “This one year of pumping is a pulse that has been pushed into the ground, and it’s going to be spreading out for at least a year.”
The latest quake experienced on the Christmas Eve and New Year’s Eve after March 2011 was within 100 metres radius of the injection well. On 31st December 2011, the quake in McDonald distant from Youngstown didn’t cause any casualties.
Robert Hagan, Youngstown Democrat Representative on 2nd January 2012, revived his call for a moratorium on fracking and well injection disposal to allow a review of safety issues. Thomas E. Stewart, the association’s executive vice-president said: “Such wells have been used safely and reliably as a disposal method for wastewater from oil and gas operations in the U.S. since the 1930s,”
If such a quake will persist for a longer period, then it will definitely influence prices on oil. After John Armbruster report that the affected areas will experience aftershocks and will take time to settle down. Therefore, oil prices will fluctuate in the commodity market.
