This video report from NHK WORLD discusses several aspects of the impact of the eruption. I’d like to add one little bit of information regarding the fireworks-like image you see in the image associated with the report. I heard on another NHK broadcast that the fiery explosion you see occurred outside of the crater, near a cable-car tower, when a large mass of material from the volcano landed there. It’s my impression from watching the video that the NHK camera began filming automatically after the eruption had already started. You can see hot material elsewhere, presumably from similar bombs of volcanic material that had landed earlier.

– KIrk

http://www3.nhk.or.jp/nhkworld/en/news/20161008_21/