"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 from fracking, state and federal officials said.
Three of Monday's quakes measured above a magnitude 4.0, with a 4.5 earthquake centered just north of Crescent, roughly 45 miles (72 km) north of Oklahoma City, the U.S. Geological Survey (USGS) said.
The largest tremor, logged a "significant earthquake" by the USGS, could be felt as far away as Wichita, Kansas, about 160 miles north, broadcaster KOTV reported."
Heide Brandes reports for Reuters July 28, 2015.
Source: Reuters, 07/28/2015
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