EcoWatch: A 3.4-magnitude earthquake struck northern Colorado Saturday night, and environmentalists werent surprised to learn that the epicenter was near a fracking site. According to the U.S. Geological Survey (USGS), the earthquake struck about 9:35 p.m. It was felt in five towns, NBC 9 reported, with Greeley being the nearest. There were no reports of damage, but anti-fracking activists say there is not a lot of math to add up in this incident. The USGS site refers to eastern Colorado as nearly aseismic...