Ohio authorities have halted a fracking operation in following two quakes. Both the authorities and the operator say there is no evidence linking fracking with the tremors, but in the past an Ohio well was closed for causing quakes.
The Ohio tremors were felt on Monday in Poland Township and the village of Lowellville near the Pennsylvania. The first 3.0 magnitude quake stroke at about 2:30am and was followed by a second 2.6 magnitude quake at 11:45am, the US Geological Survey reported. Two smaller aftershocks were reported later in the day.
Following the quakes Ohio Department of Natural Resources (ODNR) ordered suspension of drilling operation at Carbon Limestone Landfill in Lowellville, local media reported. Texas-based Hilcorp Energy has about a dozen wells in the area and was performing horizontal drilling as part of fracking production of hydrocarbons.