The Japan Meteorological Agency (JMA) recorded small eruptive events on 20, 23 and 24 January. They produced grey-white plumes which reached approx. 3,795 ft (1,157 m) altitude and drifted NE. During 25-26 January was recorded increasing seismic activity associated with volcano-tectonic earthquakes. On 27 January they recorded an eruptive event at 01:48 local time, though weather clouds…