Yellowstone volcano is a HIGH RISK threat: What does the dire USGS warning mean? YELLOWSTONE volcano was labelled a “high risk” in the latest volcano assessment published by the United States Geological Survey – but what does the dire warning mean? Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:Antarctica bombshell: Four-million-year-old discovery stuns scientist – ‘Phenomenal!’Ancient Egypt shock: Did ancient Egyptians reach Black Sea?NASA exoplanet discovery: Space agency spots closest ’habitable’ Earth-like planet yetSpace weather forecast: Earth being battered by solar storm which could lead to aurorasMoon landing shock: Why Buzz Aldrin and Neil Armstrong barely spoke – ‘Gruelling!’Rwanda Closes Border With Congo Over Ebola Fears