An earthquake measuring 4.0 on the Richter Scale hit the US State of Ohion in the waning hours of 2011. The quake struck Saturday afternoon in McDonald, outside of Youngstown, the US Geological Survey said. Area residents said a loud boom accompanied the shaking, but sheriff''s dispatchers from several counties in the area said there were no immediate reports of damage. It was the strongest of 10 quakes recorded in the region in 2011, the USGS said. The USGS says that the region is no stranger to quakes, though they are indeed rare.