McDONALD, Ohio (AP) — Officials said Saturday they believe the latest earthquake activity in northeast Ohio is related to the injection of wastewater into the ground near a fault line, creating enough pressure to cause seismic activity. The brine wastewater comes from drilling operations that use the so-called fracking process to extract gas from underground shale. But Ohio Department of Natural Resources Director Jim Zehringer said during a news teleconference that fracking is not causing the quakes.
"The seismic events are not a direct result of fracking," he said.
Environmentalists and property owners who live near gas drilling wells have questioned the safety of fracking to the environment and public health. Federal regulators have declared the technology safe, however.
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