Scientists Pinpoint How to Calm Oklahoma's Human-Made Quakes

Human-induced earthquakes have rattled Oklahoma in recent years, a state known more for its wide-open plains than havoc-wreaking temblors. This water is pumped as part of the oil and gas production process in Oklahoma and other states in the central and eastern United States. Injecting wastewater from oil and gas extraction into underground wells has occurred for decades in Oklahoma without raising concern over induced seismicity, but in 2009, the rate and volume of injection massively increased