COLUMBUS (WCMH)–A new series of United States Geological Survey (USGS) maps locates national earthquake hazard zones, identifying for the first time both human-induced and natural earthquake frequencies.
Although the number of earthquakes linked to fracking and wastewater well–injection processes in Ohio has decreased recently, four eastern counties–Belmont, Harrison, Guernsey and Washington–are at a higher risk for tremors in 2016, and in the overall USGS 50-year risk forecast.
The results show that about 7 million people are in the risk zones in the central and eastern U.S., areas that are susceptible to damage from ground-shaking quakes.
Wastewater disposal from oil and gas production operations has been linked to earthquakes in northeastern Ohio since 2011, along with other parts of the country, caused by high-pressure injection into deep rock formations, below aquifers that are used for drinking water, according to the USGS report.
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