Earthquakes like the one that woke residents from their beds on March 10 in Poland Township, Ohio, might become a more frequent occurrence in areas where fracking is becoming big business. Scientists are reporting mounting evidence that tremors can be tied to the much-debated drilling technique and related activities. What’s not clear is who might be held responsible for the quakes.
Fracking refers to the method the petroleum industry uses to break apart chunks of shale rock deep within the earth to free trapped oil and gas. Geologists in Ohio established a “probable connection” between fracking and the magnitude 3.0 quake on March 10. In Oklahoma, geologists report a spike in earthquakes associated with injecting into deep underground wells the wastewater generated during fracking operations.
The heightened awareness of seismic activity associated with fracking and wastewater injection raises the question of who is responsible should an earthquake occur that causes damage to people or their property.