Geologists say Ohio quakes directly tied to fracking

http://www.msnbc.msn.com/id/45903873/ns/technology_and_science-science/#.TwfRYIHJbSs

Recent earthquakes in Ohio and Oklahoma have been directly linked to deep wells used to dispose of liquid wastes for hydraulic fracturing or "fracking" of natural gas, according to geological experts.

And they expect more earthquakes to come as the industry continues to expand across the eastern United States.

A boom in gas production using hydraulic fracturing or "fracking" of natural gas has played a role in decreasing U.S. dependence on foreign oil and coal and helped cut energy prices, but evidence is mounting that the process may come at a price.