Shale Shocked: Remarkable Increase In U.S. Earthquakes Almost Certainly Manmade, USGS Scientists Report | ThinkProgressShale Shocked: Remarkable Increase In U.S. Earthquakes Almost Certainly Manmade, USGS Scientists Report | ThinkProgress
Last August, aUSGS reportexamined a cluster of earthquakes in Oklahoma and reported:
Our analysis showed that shortly after hydraulic fracturing began small earthquakes started occurring, and more than 50 were identified, of which 43 were large enough to be located. Most of these earthquakes occurred within a 24 hour period after hydraulic fracturing operations had ceased.
In November, a British shale gas developer found it was “highly probable” its fracturing operations caused minor quakes.
meanwhile... looking for alternative sources of energy are detrimental to the economy..