[M-TT49] 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

[MTT49-P01] 2018/12/22アナク・クラカタウの活動についてCTBT微気圧振動監視施設(I06AU)で観測された微気圧振動波形

*岩國 真紀子¹、新井 伸夫²、乙津 孝之¹、本橋 昌志¹、藤井 孝成¹、野上 麻美¹、村山 貴彦¹、大井 拓磨³ (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、3.東邦マーカンタイル株式会社)

キーワード：微気圧振動波形、火山

Severe tsunami occurred on December 22, 2018, and it was clarified by SAR analysis of GSI (Geospatial Information Authority of Japan) or visual observation by PVMBG (Pusat Vulkanologi dan Mitigasi Bencana Geologi, Indonesia) that southwest area of The Anak Krakatau collapsed. The infrasound array of the Cocos Islands (CTBTO IMS Infrasound Network: I06AU) locate about 1160 km southwest of The Anak Krakatau Volcano. Travel time of infrasound waves is estimated approximately 58 minutes. I06AU started to detect infrasound signals which came from the direction of The Anak Krakatau Volcano and recorded some remarkable infrasound wave-trains at 15:01:20-15:02:00UTC.