Morphological changes in the Showa crater of Sakurajima volcano since 2014, it was found an enlargement of 9 meters from east to west and 14 meters north-south. On the other hand, the ejecta, such as the ash deposited in and around the crater rose significantly from about 137 million cubic meters. In case of heavy rain, he was called to the attention of the people the strong possibility that debris flows occur. The wall separating the Showa crater of the Minamidake crater at the impact of the eruption, collapsed than two meters.
During 8-15 February JMA reported that 11 explosions from Showa Crater at Aira Caldera’s Sakurajima volcano ejected tephra as far as 1,300 m. Based on JMA reports and satellite data, the Tokyo VAAC reported that during 10-12 February ash plumes rose to altitudes of 1.8-2.4 km (6,000-8,000 ft) a.s.l. and drifted N, NW, W, S, and SE. On 14 February a pilot observed an ash plume that rose to an altitude of 2.1 km (7,000 ft) a.s.l. and drifted S. The Alert Level remained at 3 (on a 5-level scale).
February 18 , 2016. Sakurajima, Japan :
Sources : Sherine France /Kyt-tv , Ktstv. GVP.
Photo : M Rietze/ Le japon.fr