Hello @madridbg, I do believe that the generation of earthquakes due to fracking is possible, since if there is a significant fracture of the rock/soil, there is also a volumetric change in the sub-soil due to the same fracture and displacement of the rock material and the extraction of gas, so logically movements of the subsoil detected as earthquakes will be generated, this hypothesis would be generating some necessary studies to establish better fracking strategies in order to minimize the risks associated with this practice.