BOLIVIA : Scientists Study A Rising Uturuncu Volcano.

http://www.nytimes.com/2012/02/14/science/a-fascinating-growth-spurt-at-the-uturuncu-volcano-in-bolivia.html

     Bolivia has 198 recognized volcanoes...with only 18 potentially active.
     Its last volcanic eruption was 10,000 years ago.
     But the Uturuncu volcano has been rising steadily for over 20 years...and may become one of the planet's 30-40 supervolcanos...which delights the scientists who have followed it.
      “It’s like a tumor growing within the earth,” said a geologist  “and we have to understand whether it is benign or malignant.”