in miyazaki city, falling ash is greatly reducing visibility. many people could be seen carrying umbrellas. the city is located southeast of mount shin-moe, now the harvest season for cabbages. farmers were busy washing their produce. they fear the ash may hurt market prices. at miyazaki airport a decision was made to close all the runways. airlines decided to cancel all flights for the rest of the day out of fear the ash might be sucked into aircraft engines and cause an accident. schools were closed down in several cities. those that remained open held physical education classes inside their gymnasiums. to protect students from breathing in the fine ash particles. >>> so what triggered the eruption and how long will this volcanic activity continue? the university of tokyo's earthquake research institute says after the eruption a large lava dome formed in the crater. this phenomenon occurs when lava extrudes from a volcanic event. they also found traces of minor pyroplastic flow on the volcano. the authority has estimated the volume of magma ba