JMA reported that incandescence from Minamidake Crater (at Aira Caldera?s Sakurajima volcano) was visible at night during 25 November-2 December.
There were 16 explosions and three non-explosive eruptive events detected by the seismic network.
Ash plumes rose as high as 2.7 km above the crater rim and blocks were ejected as far as 1.3 km away.
One of the explosions, recorded at 2010 on 28 November, produced an eruption plume that rose 3.3 km.
The Alert Level remained at 3 (on a 5-level scale).
Source: Japan Meteorological Agency (JMA)