Reuters: Colorado regulators said on Thursday that the disposal of oil and gas wastewater at a well in Weld County likely caused a series of small earthquakes this year, in another sign that a U.S. drilling boom is contributing to higher seismic activity.
The issue of wastewater disposal disturbing underground faultlines has become a national issue in the United States where drilling and wastewater disposal have increased sharply in recent years.
The Colorado Oil and Gas Conservation Commission (COGCC)...