Bok
07-12-2013, 04:25 PM
Distant powerful temblors triggered ominous activity at wastewater injection sites
More... (http://www.sciencenews.org/view/generic/id/351569/title/Huge_quakes_may_foretell_smaller_human-caused_ones)
More... (http://www.sciencenews.org/view/generic/id/351569/title/Huge_quakes_may_foretell_smaller_human-caused_ones)