[M-TT52] インフラサウンド及び関連波動が繋ぐ多圏融合地球物理学の新描像

[MTT52-P02] 遠方で観測された火山噴火に起因するインフラサウンド

*岩國 真紀子¹、乙津 孝之¹、新井 伸夫²、野上 麻美¹、本橋 昌志¹、藤井 孝成¹、江村 亮平¹、村山 貴彦¹ (1.一般財団法人　日本気象協会、2.名古屋大学減災連携研究センター)

キーワード：インフラサウンド、火山噴火、微気圧計

The infrasound signals generated by the eruption of Showa Crater of Sakurajima Volcano on 5 February 2016 was observed at microbarograph array in Mie, Isumi and Ofunato. Mie is 640 kilometers to the northeast of Sakurajima Volcano, Isumi is 990km and Ofunato is 1,300km. This event was reported at JpGU2017. Another event of Sakurajima Volcano eruption was recorded at microbarographs in Mie and Isumi. According to the weather conditions of that day, these infrasound signals of both stations are presumed to propagate around the ground surface. Celerity were about 0.34km/s at both stations.