Environment News Service: The rising number of earthquakes in normally calm parts of Arkansas, Texas, Ohio and Colorado are linked to the underground injection of wastewater, finds a new study in the journal "Geology."
As an example, the study authors point to the magnitude 5.7 earthquake near Prague, Oklahoma on November 6, 2011. The largest quake ever recorded in Oklahoma, this quake is also the largest ever linked to wastewater injection. The quake destroyed 14 homes in the Shawnee-Sparks area, buckled a federal highway...