Unexpected eruption of Mt. Ontake, Japan

Unexpected eruption of Mt. Ontake, Japan (September 27, 13:02 UTC) Wow, impressive and hair rising video of the eruption ash clouds raging down the slopes of the volcano. You wont believe your eyes! The streaming webcam who captured these images was installed on a nearby mountain. It was (unfortunately) cloudy at the time of the eruption. This eruption shows once again that predicting eruptions is NOT an exact science. JMA Japan is world renowned for his expertise but was unable to predict this blast - http://www.asahi.com/articles/ASG9W5KFJG9WULBJ00D.html (this is the link to the video)