An earthquake fault is a crack or fracture in the Earth's crust where earthquakes commonly occur. It is a break in the rocks where the two sides of the fracture slide past each other, causing the Earth to shake. Full definition
of atomic power plants along earthquake fault lines have all come true. (religion-online.org)
Pumping large volumes of it deep into the earth increases the fluid pressure on earthquake faults, which decreases their strength, bringing them closer to slippage. (aaas.org)
In work that offers insight into the magnitude of the hazards posed by earthquake faults in general, seismologists have developed a model to determine the size of an earthquake that could be triggered by the underground injection of fluids produced as a by - product of hydraulic fracturing. (caltech.edu)