The U.S. Geological Survey is installing two more seismic monitors in north-central Arkansas where more than 750 earthquakes have been recorded in the past six months.
Arkansas Geological Survey geohazard supervisor Scott Ausbrooks told the Arkansas Democrat-Gazette the monitors will be placed near Guy and Greenbrier to help pinpoint the earthquakes. Other monitors were installed last fall.
Scientists have said they’re not sure if the earthquakes are occurring naturally or are a result of fluid injections by oil and gas drilling companies.
Geologists say quakes of magnitude 2.5 to 3.0 are generally the smallest felt by humans.
Information from: Arkansas Democrat-Gazette
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