My first reaction when coming across this was, It's all due to man-made Climate change. And then, I asked myself, :Why the instant sarcasm?
I guess it comes down to spending too much time on discussion forums where such things always pop up by the same posters. So now, I'm wondering which one will blame this map on Mankind.
Read the story @ http://time.com/3002710/earthquake/
Oops! It's right in the report! Of course, a government agency has to blame the increase on fracking. Why am I not surprised?