Oklahoma was rocked by seven small earthquakes in a span of about 14 hours over the weekend, the U.S. Geological Survey reports, fueling a theory that fracking is the source of the unusual seismic activity.
Three quakes hit between Saturday evening and Sunday morning, centered in the areas of Guthrie, Jones and Langston, and ranging between 2.6 and 2.9 in magnitude. They followed four larger temblors earlier on Saturday, including one near Langston shortly after noon that clocked in at 4.3 on the Richter scale.
On July 3, the academic journal Science published an article drawing a connection between oil- and gas production using hydraulic fracturing, also known as “fracking,” and a sharp increase in earthquakes in areas where it takes place. Fracking involves using water, sand and chemicals to create fissures in underground rock formations, through which oil and gas reserves can be freed. It has long been known…
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