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U.S. Geological Survey: Fracking waste is the primary cause of the dramatic rise in earthquakes.

25 Feb
U.S. Geological Survey: Fracking waste is the primary cause of the dramatic rise in earthquakes.

Daily Kos

WE FEB 25, 2015

The U.S. Geological Survey has backed-up what scientists have been suggesting for years–that deep injection of wastewater is the primary cause of the dramatic rise in detected earthquakes:

Large areas of the United States that used to experience few or no earthquakes have, in recent years, experienced a remarkable increase in earthquake activity that has caused considerable public concern as well as damage to structures. This rise in seismic activity, especially in the central United States, is not the result of natural processes.

Instead, the increased seismicity is due to fluid injection associated with new technologies that enable the extraction of oil and gas from previously unproductive reservoirs. These modern extraction techniques result in large quantities of wastewater produced along with the oil and gas. The disposal of this wastewater by deep injection occasionally results in earthquakes that are large enough to be felt, and sometimes damaging. Deep injection of wastewater is the primary cause of the dramatic rise in detected earthquakes and the corresponding increase in seismic hazard in the central U.S.  

fracking-infographic-1024x767

“The science of induced earthquakes is ready for application, and a main goal of our study was to motivate more cooperation among the stakeholders — including the energy resources industry, government agencies, the earth science community, and the public at large — for the common purpose of reducing the consequences of earthquakes induced by fluid injection,” said coauthor Dr. William Ellsworth, a USGS geophysicist.

frackquake

Emphasis added. In the last five years alone, Oklahoma has detected a staggering 2500 earthquakes. Scientists involved in the study are calling for a dramatic increase in transparency and cooperation:

“In addition to determining the hazard from induced earthquakes, there are other questions that need to be answered in the course of coping with fluid-induced seismicity,” said lead author of the study, USGS geophysicist Dr. Art McGarr. “In contrast to natural earthquake hazard, over which humans have no control, the hazard from induced seismicity can be reduced. Improved seismic networks and public access to fluid injection data will allow us to detect induced earthquake problems at an early stage, when seismic events are typically very small, so as to avoid larger and potentially more damaging earthquakes later on.”

ORIGINALLY POSTED TO SCOUT FINCH ON MON FEB 23, 2015 AT 10:06 AM PST.

ALSO REPUBLISHED BY OKLAHOMA ROUNDUP.

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Posted by on February 25, 2015 in Entradas(sin etiquetar)

 

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