Sunday night’s 5.0 magnitude earthquake that hit Cushing, Okla., is the latest and, in some ways, the most troubling in a series of temblors that has rocked the Sooner State over the past few years. Not only did it strike within a mile of what is arguably one of the country’s most important strategic assets—Cushing is the largest crude oil trading hub in North America, with almost 600 million barrels of stored crude—but its occurrence raises questions over the state’s ability to do anything about the significant rise in seismic activity, which has been linked to oil and gas activity. While regulations limiting the underground disposal of wastewater have succeeded in reducing the overall frequency of earthquakes, they haven’t been able to stop the really big ones from happening. […]