the San Andreas is important only because people foolishly built infrastructure and homes on top of or crossing this very active  slip/slide fault.  But Yellowstone is different: it can trigger an Ice Age if conditions are right and it can destroy much of the human habitation of North America if the explosion is as big as some have been in the past.  It is the Sleeping Dragon we must all fear and watch.

via Troubling Earthquake Cluster Near Noris Geyser Basin In Yellowstone | Culture of Life News.