Oklahoma Geological Survey

A strong 5.1 magnitude earthquake rattled Oklahoma shortly before 11:30 p.m. Friday. The epicenter was located near Prague, about 60 miles southwest of Tulsa.

The first lawsuit filed against Oklahoma oil companies over earthquakes is now settled.Sandra Ladra was injured by rocks that shook loose from her…

Oklahoma oil and gas regulators on Tuesday released details on new guidelines created to reduce earthquakes triggered by hydraulic fracturing in two of…

The U.S. Geological Survey is upgrading the strength of an earthquake that shook the state on Sept. 3 to 5.8 magnitude. That change makes the Labor Day…

More than a dozen wastewater disposal wells in the Osage Nation have been shut down after Saturday’s earthquake – one of the strongest in Oklahoma…

The strongest earthquake to hit Oklahoma in nearly five years shook the state Saturday morning, rousing some residents from a dead sleep. It was felt as…

A former research seismologist with the Oklahoma Geological Survey says agency leaders and other state officials fostered a culture of hesitation and…

Harold Hamm, the founder, chairman and CEO of Continental Resources, says he requested a meeting with a state seismologist to get information, not to…

The Oklahoma Geological Survey on April 21 acknowledged Oklahoma’s ongoing earthquake surge is “very likely” triggered by wastewater disposal wells used…

Disposal wells used by the oil and gas industry are ‘very likely’ responsible for the recent surge of earthquakes in Oklahoma, the state seismologist at…