Waste Injection Tremors Triggered by Distant Earthquakes?
July 17, 2013 | Columbia University
"Large earthquakes from distant parts of the globe are setting off tremors around waste-fluid injection wells in the central United States..." Quoted from the Columbia University press release.
Fracking Does Not Cause Earthquakes
September 10, 2013 | NewsOK.com
Human activity associated with natural gas production has been shown to cause earthquakes, an example is the disposal of waste liquids in high volume injection wells. So far there has not been a connection between human-induced earthquakes and the hydraulic fracturing process - yet many people make that association.
Related: What is Hydraulic Fracturing?
Can CO2 Injection Trigger Earthquakes?
December 8, 2013 | The University of Texas at Austin
"A new study correlates a series of small earthquakes near Snyder, Texas between 2006 and 2011 with the underground injection of large volumes of gas, primarily carbon dioxide (CO2) — a finding that is relevant to the process of capturing and storing CO2 underground." Quoted from the Jackson School of Geosciences press release.