Wastewater injection triggers deadly earthquakes clattering up Oklahoma, USA, according to the new research conducted by the University of Bristol.
Depths at where the wastewater exposed by many gas and oil industries are injected under the ground are discovered to be linked with the man-made earthquakes faced by Oklahoma, USA. Over 10,000 wells with injected wastewater have been analyzed by the scientists associated with the research, where around 96 billion gallons of hydraulic fracturing fluid leftover are pumped yearly.
Dr Thea Hincks, study’s leading author and also a Senior Research Associate from the University of Bristol’s School of Earth Sciences said that, “Our new modeling framework provides a targeted, evidential basis for managing a substantial reduction in induced seismicity in Oklahoma, with extensive possibilities for application elsewhere in the world. This marks a step forward in understanding the evolution of seismicity in the Oklahoma region.”
However, these depths and amount of injected wastewater have been the important keys since 2009 to understand the quake outbreak, as reported by the scientists in the journal Science on Thursday. The quakes occurred at the location even included a detrimental magnitude of 5.8 in 2016, which has been recorded as the strongest one throughout the state history.
Another co-author of the study, professor Dr Tom Gernon from the Earth Science at University of Southampton stated that, “Thanks to an innovative model capable of analyzing large and complex data sets, our study establishes for the first time a clear link between seismicity and fluid injection depth.”