Near Injection Wells, Many Quakes Go Unfelt

Near Injection Wells, Many Quakes Go Unfelt by Joanna M. Foster, August 7, 2012, The New York Times
In the paper, published online on Monday in the Proceedings of the National Academies of Science, Cliff Frohlich, associate director and senior research scientist at the Institute for Geophysics at the University of Texas at Austin, found that earthquakes are far more common in the area than has been officially reported. Relying on data made available by the EarthScope USArray Program, an array of seismometers, Dr. Frohlich identified nearly eight times as many earthquakes as had been previously reported by the National Earthquake Information Center.