CRS – Human-Induced Earthquakes from Deep-Well Injection: A Brief Overview. Peter Folger, Specialist in Energy and Natural Resources Policy; Mary Tiemann; Specialist in Environmental Policy. December 22, 2014. “The development of unconventional oil and natural gas resources using horizontal drilling and hydraulic fracturing (fracking) has created new demand for wastewater disposal wells that inject waste fluids into deep geologic strata. An increasing concern… Continue Reading