Small 'felt' Earthquake In Ohio - Fracking Implicated

If you hit the ground with a hammer, it creates a micro-earthquake, but it is obviously too small to be detected. The ancient Chinese used to use a drum in the ground to listen for enemy sappers mining underneath their fortifications. The process of hydraulic fracturing, or fracking, extracts gas and oil from shale rock by injecting a high-pressure water mixture directed at the rock to release the oil and gas trapped inside. Like any geological event, that results in micro-earthquakes much smaller than humans can feel.  read more

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