Oklahoma earthquakes burst the dam

Not really, but there was a heck of a lot of them with a total of an m6, maybe.  This follows a rise in the price of oil, but I haven't looked at natgas.  Every time there is a speck of hope people get fracking and send the frack waste to OK.  The m4.2 was a shallow thrust and knocked out some substations.  That would make it 10 cm/s pgv.