A small-scale earthquake struck north central Arkansas Thursday morning. It is the seventh in the span of a few weeks to strike the Van Buren County area.
The highest registered a 2.8 on the Richter scale, and is the most powerful the region has seen since monitoring began. Scott Ausbrooks, Geo Hazards Supervisor for the Arkansas Geological Survey, says there are three potential causes for the increase in activity.
"Natural earthquakes... changing lake levels...or active injection wells in the area" lists Ausbrooks, naming potential reasons for the recent earthquakes.
He says the quakes have not been large enough to cause damage to buildings or any harm to people in the area.