Hydraulic Fracturing ("Fracking") - 6 of 15
Hydraulic Fracturing ("Fracking") FAQs - 15 Found
Reports of hydraulic fracturing causing felt earthquakes are extremely rare. However, wastewater produced by the hydraulic fracturing process can cause “induced” earthquakes when it is injected into deep wastewater wells.
Wastewater disposal wells typically operate for longer durations and inject much more fluid than wells that are extracting oil through hydraulic fracturing. Wastewater injection can raise pressure levels in the rock formation more than the process of hydraulic fracturing does, and increases the likelihood of induced earthquakes.
Most wastewater injection wells are not associated with felt earthquakes. A combination of many factors is necessary for injection to induce felt earthquakes.