The debate about the cause of the exponential rise in the frequency of earthquakes in Oklahoma has really heated up in the last year, but as KFOR4 reports, The United States Geological Survey (USGS) appears to have put any doubt firmly to rest. In a strongly-worded press release, the USGS states, “…Large areas of the United States that used to experience few or no earthquakes have, in recent years, experienced a remarkable increase in earthquake activity..