For the fracking industry, 2012 is off to a shaky start…literally. On New Year’s Eve 2011, a 4.0 magnitude earthquake was recorded in Ohio, one of the largest fracking-related quakes to date. According to reports, the quake was felt across hundreds of square miles in the state of Ohio, and scientists suspect it is related to hydraulic fracturing wastewater disposal near Youngstown, Ohio.
The New Year’s Eve quake is just the latest in a growing list of fracking-related earthquakes that have made headlines in the last 12 months. From DeSmogBlog’s Year In Dirty Energy: Fracking report:
New reports are surfacing that link fracking to earthquakes that occurred in January in Oklahoma. According to a new study by the Oklahoma Geological Survey [PDF], fracking is linked to 50 mini-earthquakes that occurred on January 18, 2011 in Oklahoma.
The occurrence of so-called “induced seismicity” – seismic activity caused by human actions – in conjunction with fluid injection or extraction operations is a well-documented phenomenon. However, induced earthquakes large enough to be felt at the surface have typically been associated with large scale injection or withdrawal of fluids, such as water injection wells, geothermal energy production, and oil and gas production. It was generally thought that the risk of inducing large earthquakes through hydraulic fracturing was very low, because of the comparatively small volumes of fluid injected and relatively short time-frame over which it occurs. As the controversy over hydraulic fracturing has heated up, however, researchers and the public have become increasingly interested in the potential for fracking to cause large earthquakes.
But this is hardly a new phenomenon. Studies show that fracking practices in the 1970s had caused similar seismic activity in Oklahoma, according to E&E News.