Doomsdayers on edge as quake ‘swarm’ rocks Yellowstone supervolcano Prison Planet.com Posted on June 21, 2017 Posted in Aggregated No Comments Tagged with Sci Tech RT | The supervolcano under Yellowstone National Park has once again become a point of focus for doomsdayers after scientists picked up some ominous earthquake activity this month. Share this:Share Share on Facebook (Opens in new window) Facebook Share on Reddit (Opens in new window) Reddit Share on X (Opens in new window) X Share on LinkedIn (Opens in new window) LinkedIn Email a link to a friend (Opens in new window) Email