Do all these earthquakes mean something?

Update for November 2, 2011: In Oklahoma, earthquakes could be a result of “fracking”, natural gas extraction. Story: here. Info from The US Geological Survey about earthquakes is here. Gives dates, magnitude, and info for recent summer 2011 Virginia and Colorado earthquakes. August, 2011, Earthquake analysis: Did fracking (gas and oil extraction) cause the Virginia […]