Scientists regard it as one of the most dangerous volcanoes in the world. Time and again, Merapi, the Fire Mountain of Java in Indonesia, has proved its deadly potential. The risk of another serious eruption is high and could even have global consequences. Now scientists are looking at a mysterious tectonic disturbance: a crack that has suddenly wound its way through the center of the volcano.

Release : May 22, 2015

Duration : 52 minutes

Rating : 8.50