JMA reported that the number of explosions at Suwanosejima's Ontake Crater increased during 2-8 August, when around 30 were recorded; nine of those were detected on 7 August.
During 7-8 August eruption plumes rose as high as 2 km above the crater rim and mingled with weather clouds.
Large ballistics were ejected 600 m from the crater?s center.
Incandescence from the crater was visible at night.
The Alert Level remained at 2 and the public was warned to stay 1 km away from the crater.
Source: Japan Meteorological Agency (JMA)