Bloomberg: Shale producers in Albertas Duvernay region are being asked to monitor and prevent earthquakes after regulators linked a series of seismic events over the last two months to hydraulic fracturing.
Producers must test for quakes and, if they detect seismic events greater than magnitude 2.0 on the Richter scale, take measures to reduce the impact of their activity, the Alberta Energy Regulator said Thursday. If a tremor is detected above magnitude 4.0, producers must immediately halt drilling and...