The earth shakes – always has, always will, just like the climate changes. A tremble now and then, even a major earthquake like the Cape Ann (Boston) Quake of 1755 is part of the natural order. For fun,you might reflect on the New Madrid Earthquake of 1811, which ripped through most of the mid-west, causing incredible damage. Fortunately for FEMA, there wasn’t all that much human settlement out there in 1811, but when it next stirs, things will be even more eventful.
The point of my reference to fracking is that people are woefully ignorant about the earth we live on, and rush to attribute unexpected phenomenon on God, conspiracies or,these days, the Church of the Holy Gaia. We’re no better than the most primitive New Guinea cannibals in that respect.