2026-08-06T08:00:00Z 通常 気象庁本庁 気象庁 2026-08-06T17:00:00+09:00 2026-08-06T18:00:00+09:00 2026-08-07T12:00:00+09:00 511 発表 1 降灰予報 1.1_0 　現在、諏訪之瀬島は噴火警戒レベル２（火口周辺規制）です。諏訪之瀬島で噴火が発生した場合には、６日２１時から２４時までは火口から南西方向、７日０９時から１２時までは火口から西方向に降灰が予想されます。 降灰予報（定時） 06 諏訪之瀬島 511 降灰 70 鹿児島県十島村 4630400 小さな噴石の落下 75 鹿児島県十島村 4630400 降灰予報（定時） 06 諏訪之瀬島 511 +2938.30+12942.83+796/ 降灰 70 鹿児島県十島村 4630400 小さな噴石の落下 75 鹿児島県十島村 4630400 2026-08-06T18:00:00+09:00 2026-08-06T21:00:00+09:00 降灰 70 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南西 100 鹿児島県十島村 4630400 小さな噴石の落下 75 1 +29.6571+129.6800/+29.6588+129.7000/+29.6588+129.7200/+29.6400+129.7388/+29.6212+129.7200/+29.6200+129.7178/+29.6022+129.7000/+29.6007+129.6800/+29.6000+129.6741/+29.5919+129.6600/+29.5900+129.6400/+29.6000+129.6274/+29.6200+129.6333/+29.6266+129.6400/+29.6339+129.6600/+29.6400+129.6629/+29.6571+129.6800/ 南西 8 鹿児島県十島村 4630400 2026-08-07T00:00:00+09:00 2026-08-07T03:00:00+09:00 降灰 70 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西 80 鹿児島県十島村 4630400 小さな噴石の落下 75 1 +29.6450+129.6200/+29.6517+129.6400/+29.6556+129.6600/+29.6583+129.6800/+29.6588+129.7000/+29.6582+129.7200/+29.6400+129.7382/+29.6218+129.7200/+29.6212+129.7000/+29.6200+129.6965/+29.6035+129.6800/+29.6056+129.6600/+29.6037+129.6400/+29.6067+129.6200/+29.6200+129.6076/+29.6400+129.6085/+29.6450+129.6200/ 西 9 鹿児島県十島村 4630400 2026-08-07T06:00:00+09:00 2026-08-07T09:00:00+09:00 降灰 70 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西 90 鹿児島県十島村 4630400 小さな噴石の落下 75 1 +29.6640+129.6200/+29.6689+129.6400/+29.6733+129.6600/+29.6600+129.6733/+29.6581+129.6800/+29.6588+129.7000/+29.6588+129.7200/+29.6400+129.7388/+29.6212+129.7200/+29.6212+129.7000/+29.6219+129.6800/+29.6239+129.6600/+29.6256+129.6400/+29.6319+129.6200/+29.6400+129.6102/+29.6600+129.6111/+29.6640+129.6200/ 西 9 鹿児島県十島村 4630400 2026-08-07T09:00:00+09:00 2026-08-07T12:00:00+09:00 降灰 70 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西 100 鹿児島県十島村 4630400 小さな噴石の落下 75 1 +29.6613+129.6200/+29.6684+129.6400/+29.6743+129.6600/+29.6766+129.6800/+29.6600+129.6966/+29.6588+129.7000/+29.6509+129.7200/+29.6400+129.7309/+29.6291+129.7200/+29.6212+129.7000/+29.6220+129.6800/+29.6252+129.6600/+29.6308+129.6400/+29.6386+129.6200/+29.6400+129.6166/+29.6600+129.6158/+29.6613+129.6200/ 西 9 鹿児島県十島村 4630400 　現在、諏訪之瀬島は噴火警戒レベル２（火口周辺規制）です。諏訪之瀬島で噴火が発生した場合には、６日２１時から２４時までは火口から南西方向、７日０９時から１２時までは火口から西方向に降灰が予想されます。 　６日１８時から７日１２時までに噴火が発生した場合には、以下の方向・距離に降灰及び小さな噴石の落下が予想されます。 　 　時刻　　　　　　　　　　　　火口からの方向　降灰の距離　小さな噴石の距離 　０６日１８時から２１時まで　南西　　　　　　１１０ｋｍ　８ｋｍ　　　　　 　０６日２１時から２４時まで　南西　　　　　　１００ｋｍ　８ｋｍ　　　　　 　０７日００時から０３時まで　南西　　　　　　１１０ｋｍ　１０ｋｍ　　　　 　０７日０３時から０６時まで　西　　　　　　　８０ｋｍ　　９ｋｍ　　　　　 　０７日０６時から０９時まで　西　　　　　　　９０ｋｍ　　９ｋｍ　　　　　 　０７日０９時から１２時まで　西　　　　　　　１００ｋｍ　９ｋｍ　　　　　 　 　期間中に噴火が発生した場合には、以下の市町村に降灰が予想されます。 　鹿児島県：十島村 　 　噴煙が火口縁上１０００ｍまで上がった場合の火山灰及び小さな噴石の落下範囲を示しています。 　噴火発生時、小さな噴石の落下が予想される範囲内では、屋内や頑丈な屋根の下などに移動してください。 　強風のため、遠方まで小さな噴石が流されるおそれがあります。