According to the U.S. Department of Interior, the increase in seismic activity can be traced down to industrial drilling. There appears to be a link between an increase in earthquakes around locations in where deep drilling is being done, but it’s not because of the drilling itself. According to scientists who have been researching this problem for years, the injection of wastewater in deep disposal wells is what’s causing the quakes.

via Industrial Drilling Creating Earthquakes | Ghost Theory.