2026-10-26T17:00:00Z 通常 気象庁本庁 気象庁 2026-10-27T02:00:00+09:00 2026-10-27T03:00:00+09:00 2026-10-27T21:00:00+09:00 503 発表 1 降灰予報 1.1_0 　現在、阿蘇山は噴火警戒レベル２（火口周辺規制）です。阿蘇山で噴火が発生した場合には、２７日０９時から１２時までは火口から南東方向に降灰が予想されます。 降灰予報（定時） 06 阿蘇山 503 降灰 70 熊本県阿蘇市 4321400 熊本県高森町 4342800 熊本県南阿蘇村 4343300 熊本県山都町 4344700 宮崎県延岡市 4520300 宮崎県日向市 4520600 宮崎県西都市 4520800 宮崎県木城町 4540400 宮崎県都農町 4540600 宮崎県門川町 4542100 宮崎県諸塚村 4542900 宮崎県椎葉村 4543000 宮崎県美郷町 4543100 宮崎県高千穂町 4544100 宮崎県日之影町 4544200 宮崎県五ヶ瀬町 4544300 小さな噴石の落下 75 熊本県阿蘇市 4321400 熊本県高森町 4342800 熊本県南阿蘇村 4343300 降灰予報（定時） 06 阿蘇山 503 +3253.07+13106.23+1592/ 降灰 70 熊本県阿蘇市 4321400 熊本県高森町 4342800 熊本県南阿蘇村 4343300 熊本県山都町 4344700 宮崎県延岡市 4520300 宮崎県日向市 4520600 宮崎県西都市 4520800 宮崎県木城町 4540400 宮崎県都農町 4540600 宮崎県門川町 4542100 宮崎県諸塚村 4542900 宮崎県椎葉村 4543000 宮崎県美郷町 4543100 宮崎県高千穂町 4544100 宮崎県日之影町 4544200 宮崎県五ヶ瀬町 4544300 小さな噴石の落下 75 熊本県阿蘇市 4321400 熊本県高森町 4342800 熊本県南阿蘇村 4343300 2026-10-27T03:00:00+09:00 2026-10-27T06:00:00+09:00 降灰 70 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南東 70 熊本県阿蘇市 4321400 熊本県高森町 4342800 熊本県南阿蘇村 4343300 熊本県山都町 4344700 宮崎県日向市 4520600 宮崎県木城町 4540400 宮崎県都農町 4540600 宮崎県諸塚村 4542900 宮崎県椎葉村 4543000 宮崎県美郷町 4543100 宮崎県高千穂町 4544100 宮崎県日之影町 4544200 宮崎県五ヶ瀬町 4544300 小さな噴石の落下 75 1 +32.8988+131.0800/+32.8975+131.1000/+32.8800+131.1175/+32.8600+131.1097/+32.8492+131.1000/+32.8521+131.0800/+32.8600+131.0721/+32.8800+131.0612/+32.8988+131.0800/ 南 3 熊本県阿蘇市 4321400 熊本県高森町 4342800 熊本県南阿蘇村 4343300 2026-10-27T09:00:00+09:00 2026-10-27T12:00:00+09:00 降灰 70 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南東 60 熊本県阿蘇市 4321400 熊本県高森町 4342800 熊本県南阿蘇村 4343300 熊本県山都町 4344700 宮崎県延岡市 4520300 宮崎県門川町 4542100 宮崎県美郷町 4543100 宮崎県高千穂町 4544100 宮崎県日之影町 4544200 宮崎県五ヶ瀬町 4544300 小さな噴石の落下 75 1 +32.8988+131.0800/+32.8985+131.1000/+32.8800+131.1192/+32.8600+131.1000/+32.8612+131.0800/+32.8800+131.0612/+32.8988+131.0800/ 南東 1 熊本県阿蘇市 4321400 熊本県高森町 4342800 熊本県南阿蘇村 4343300 2026-10-27T12:00:00+09:00 2026-10-27T15:00:00+09:00 降灰 70 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南東 60 熊本県阿蘇市 4321400 熊本県高森町 4342800 熊本県南阿蘇村 4343300 熊本県山都町 4344700 宮崎県延岡市 4520300 宮崎県門川町 4542100 宮崎県高千穂町 4544100 宮崎県日之影町 4544200 小さな噴石の落下 75 1 +32.8988+131.0800/+32.8987+131.1000/+32.8800+131.1199/+32.8600+131.1030/+32.8590+131.1000/+32.8600+131.0990/+32.8612+131.0800/+32.8800+131.0612/+32.8988+131.0800/ 南東 3 熊本県阿蘇市 4321400 熊本県高森町 4342800 熊本県南阿蘇村 4343300 2026-10-27T15:00:00+09:00 2026-10-27T18:00:00+09:00 降灰 70 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南東 60 熊本県阿蘇市 4321400 熊本県高森町 4342800 熊本県南阿蘇村 4343300 熊本県山都町 4344700 宮崎県延岡市 4520300 宮崎県門川町 4542100 宮崎県美郷町 4543100 宮崎県高千穂町 4544100 宮崎県日之影町 4544200 宮崎県五ヶ瀬町 4544300 小さな噴石の落下 75 1 +32.8988+131.0800/+32.8987+131.1000/+32.8864+131.1200/+32.8800+131.1264/+32.8600+131.1201/+32.8599+131.1200/+32.8579+131.1000/+32.8600+131.0979/+32.8612+131.0800/+32.8800+131.0612/+32.8988+131.0800/ 南東 4 熊本県阿蘇市 4321400 熊本県高森町 4342800 熊本県南阿蘇村 4343300 2026-10-27T18:00:00+09:00 2026-10-27T21:00:00+09:00 降灰 70 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南東 60 熊本県阿蘇市 4321400 熊本県高森町 4342800 熊本県南阿蘇村 4343300 熊本県山都町 4344700 宮崎県延岡市 4520300 宮崎県門川町 4542100 宮崎県諸塚村 4542900 宮崎県美郷町 4543100 宮崎県高千穂町 4544100 宮崎県日之影町 4544200 宮崎県五ヶ瀬町 4544300 小さな噴石の落下 75 1 +32.8988+131.0800/+32.8986+131.1000/+32.8820+131.1200/+32.8800+131.1220/+32.8716+131.1200/+32.8600+131.1181/+32.8458+131.1000/+32.8600+131.0846/+32.8605+131.0800/+32.8800+131.0612/+32.8988+131.0800/ 南東 3 熊本県阿蘇市 4321400 熊本県高森町 4342800 熊本県南阿蘇村 4343300 　現在、阿蘇山は噴火警戒レベル２（火口周辺規制）です。阿蘇山で噴火が発生した場合には、２７日０９時から１２時までは火口から南東方向に降灰が予想されます。 　２７日３時から２７日２１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 　２７日０３時から０６時まで　南　　　　　　　７０ｋｍ　　３ｋｍ　　　　　 　２７日０６時から０９時まで　南東　　　　　　７０ｋｍ　　３ｋｍ　　　　　 　２７日０９時から１２時まで　南東　　　　　　６０ｋｍ　　１ｋｍ　　　　　 　２７日１２時から１５時まで　南東　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　２７日１５時から１８時まで　南東　　　　　　６０ｋｍ　　４ｋｍ　　　　　 　２７日１８時から２１時まで　南東　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　 　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。 　熊本県　：阿蘇市、高森町、南阿蘇村、山都町 　宮崎県　：日向市、西都市、木城町、諸塚村、椎葉村、美郷町、五ヶ瀬町、都農町、高千穂町、 　　　　　日之影町、延岡市、門川町 　 　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。