A 4.3 earthquake rattled Oklahoma City at around 1:00 am central today. You may recall that scientists have evidence connecting Oklahoma's sudden onset of small quakes to the disposal of liquid left over from gas and oil fracking operations.
Here at BoingBoing, we've talked before about the fact that earthquakes can be triggered by things humans do — everything from building particularly large reservoir to, most likely, injecting wastewater from fracking operations into underground wells. After a 5.7 earthquake hit Oklahoma in 2011, researchers there began gathering evidence that is making the link between rumbling earth and oil-and-gas discovery a lot stronger. At Mother Jones, Michael Behar has a story about this research and and how it is (and isn't) affecting the industry.