The number of Oklahoma earthquakes registering a magnitude 3.0 or greater has declined for the third consecutive year after state regulators began directing oil and natural gas producers to close some wells and reduce injection volumes in others. The number …
Scientists may have found previously unmapped faults in Oklahoma that could be contributing to a sharp increase in induced earthquakes in the state, according to a report on a study that used magnetic imaging to explore the rock formations below …
Scientists say they have more evidence that an increase in earthquakes on the Colorado-New Mexico border since 2001 has been caused by wells that inject wastewater from oil and gas production back underground, similar to human-caused quakes in Oklahoma and …
An Oklahoma-based Native American tribe filed a lawsuit in its own tribal court system Friday accusing several oil companies of triggering the state’s largest earthquake that caused extensive damage to some near-century-old tribal buildings. The Pawnee Nation alleges in the …
The Environmental Protection Agency has told Oklahoma regulators to do more to protect the state from a surge in earthquake activity that scientists have linked to the underground disposal of oil and gas wastewater. An EPA administrator sent a letter …
State regulators asked oil and natural gas producers in central Oklahoma to decrease their wastewater disposal operations to try to temper the sharp increase in the number and severity of earthquakes in the energy-rich state. The proposal released by the …
A 2005 spate of quakes in California’s Central Valley almost certainly was triggered by oilfield injection underground, a study published Thursday said in the first such link in California between oil and gas operations and earthquakes. Researchers at the University …
A spike in earthquakes across Oklahoma is forcing the state’s energy regulator to urgently consider tougher restrictions on drilling activity, a spokesman said on Wednesday, calling it a “game changer.” From June 17 to 24, there have been 35 earthquakes …
The more oil and gas companies pump their saltwater waste into the ground, and the faster they do it, the more they have triggered earthquakes in the central United States, a massive new study found. An unprecedented recent jump in …