wastewater injections News

Oklahoma’s largest recorded earthquake affected geological structures both above and below ground last year, but experts caution there still is much that scientists don’t know the 5.8-magnitude temblor that struck near Pawnee. Ten separate academic studies into the Sept. 3 …

An unusual and widely felt 5.6-magnitude quake in Oklahoma in 2011 was probably caused when oil drilling waste was pushed deep underground, a team of university and federal scientists concluded. That would make it the most powerful quake to be …