A new federal map released Monday shows parts of Oklahoma are now as seismic as parts of California and Alaska, long the nation’s leaders in earthquakes, and for the first time includes man-made ...

A lawsuit claims that Oklahoma’s great increase in earthquake activity has been caused by pumping waste from drilling operations back underground. The suit involves the largest measured quake in ...

Drilling for oil and gas has made parts of Oklahoma and Kansas as likely to be hit by major earthquakes as California. A new United States Geological Survey (USGS) hazard map shows that the risk ...

OKLAHOMA CITY (Reuters) - Several earthquakes shook Oklahoma on Monday as the state experiences a sharp increase in the frequency of tremors linked to wastewater disposal from gas and oil drilling ...

A hot pipe, that will go into drilling, casing oil and gas wells, is manufactured at the Vallourec plant Tuesday, March 14, 2017, in Houston. As the oil activity has begun to pick up, demand for ...

Oklahoma City - Several earthquakes shook Oklahoma on Monday as the state experiences a sharp increase in the frequency of tremors linked to wastewater disposal from gas and oil drilling, including ...