Some rumors were started on the internet that an eruption of the Yellowstone Supervolcano was imminent;   Alternative new sites had reported earthquakes, road closures, and that the park was being evacuated in advance of an eruption, and so the Yellowstone Volcano Observatory felt obligated to release a statement denying the “reports”. The YVO released an official statement  denying the rumors and “reports”:  Yellowstone Park Adresses Rumors of Earthquakes, Eruptions and Evacuations.  

This immediately fueled internet rumors and alternative news source reports that a Large Asteroid Impact on the Continental United States is imminent.