[SVC41-P39] Masses of tephra fall deposits from the 2017 Shinmoedake eruption, Kirishima Volcanoes, Kyushu, Japan.
Keywords:Shinmoedake eruption, ash-fall deposits, total mass, Kirishima Volcano, volume
A series of subplinian and vulcanian eruptions occurred at Shinmoedake Volcano in Kirishima volcaones, located in the boundary between Miyazaki and Kagoshima prefectures, southern Kyushu, Japan erupted the subplinian eruption in 2011. The Shinmoedake volcano started erupting again on 11th, October, 2017. The crater of this eruption was newly formed in the east side of the summit crater of Shinmoedake, and the ash-fall deposits were distributed in the area more than 2 km from the crater. This eruption is divided into two periods of 11th-12th and 14th-17th, October. The main ash fall of this eruption occurred in 4 episodes: 11th, 12th, 14th a.m., and 14th p.m.-16th. The erupted mass each episode is 107-108 kg order, and the total mass of this eruption is less than 109 kg. More detailed values will be introduced at the presentation.