These findings could lead to a better understanding of how pressurized fluids can trigger earthquakes and tremors, scientists added.
"Four fracking wastewater wells near Oklahoma City have caused hundreds of earthquakes since 2008, a new study finds."On Aug. 3, 2012, a giant sinkhole formed overnight near Bayou Corne in southeast Louisiana, prompting a declaration of emergency from state officials and evacuation of nearby residents. The sinkhole - filled with a slurry of water, debris and crude oil - swallowed cypress trees, and recent estimates suggest it is now more than 215,000 square feet (20,000 square meters) and about 330 feet (100 m) deep. [Video: Bayou Corne Sinkhole Swallows Trees]
Fracking connection to Oklahoma City earthquakes