2026-10-30T08:00:00Z 通常 気象庁本庁 気象庁 2026-10-30T17:00:00+09:00 2026-10-30T18:00:00+09:00 2026-10-31T12:00:00+09:00 506 発表 1 降灰予報 1.1_0 　現在、桜島は噴火警戒レベル３（入山規制）です。桜島で噴火が発生した場合には、３０日２１時から２４時までは火口から東方向、３１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 桜島 506 降灰 70 宮崎県日南市 4520400 宮崎県串間市 4520700 鹿児島県鹿児島市 4620100 鹿児島県鹿屋市 4620300 鹿児島県垂水市 4621400 鹿児島県曽於市 4621700 鹿児島県志布志市 4622100 鹿児島県大崎町 4646800 鹿児島県東串良町 4648200 鹿児島県錦江町 4649000 鹿児島県肝付町 4649200 小さな噴石の落下 75 鹿児島県鹿児島市 4620100 鹿児島県垂水市 4621400 降灰予報（定時） 06 桜島 506 +3135.55+13039.40+1117/ 降灰 70 宮崎県日南市 4520400 宮崎県串間市 4520700 鹿児島県鹿児島市 4620100 鹿児島県鹿屋市 4620300 鹿児島県垂水市 4621400 鹿児島県曽於市 4621700 鹿児島県志布志市 4622100 鹿児島県大崎町 4646800 鹿児島県東串良町 4648200 鹿児島県錦江町 4649000 鹿児島県肝付町 4649200 小さな噴石の落下 75 鹿児島県鹿児島市 4620100 鹿児島県垂水市 4621400 2026-10-30T18:00:00+09:00 2026-10-30T21:00:00+09:00 降灰 70 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東 120 宮崎県日南市 4520400 宮崎県串間市 4520700 鹿児島県鹿児島市 4620100 鹿児島県鹿屋市 4620300 鹿児島県垂水市 4621400 鹿児島県曽於市 4621700 鹿児島県志布志市 4622100 鹿児島県大崎町 4646800 鹿児島県東串良町 4648200 鹿児島県肝付町 4649200 小さな噴石の落下 75 1 +31.5988+130.6600/+31.5988+130.6800/+31.5982+130.7000/+31.5918+130.7200/+31.5800+130.7394/+31.5719+130.7400/+31.5600+130.7434/+31.5572+130.7400/+31.5468+130.7200/+31.5436+130.7000/+31.5418+130.6800/+31.5476+130.6600/+31.5600+130.6476/+31.5800+130.6412/+31.5988+130.6600/ 東 8 鹿児島県鹿児島市 4620100 鹿児島県垂水市 4621400 2026-10-30T21:00:00+09:00 2026-10-31T00:00:00+09:00 降灰 70 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東 110 宮崎県日南市 4520400 宮崎県串間市 4520700 鹿児島県鹿児島市 4620100 鹿児島県鹿屋市 4620300 鹿児島県垂水市 4621400 鹿児島県曽於市 4621700 鹿児島県志布志市 4622100 鹿児島県大崎町 4646800 鹿児島県東串良町 4648200 鹿児島県肝付町 4649200 小さな噴石の落下 75 1 +31.5988+130.6600/+31.5988+130.6800/+31.5983+130.7000/+31.5897+130.7200/+31.5800+130.7297/+31.5663+130.7400/+31.5600+130.7558/+31.5472+130.7400/+31.5413+130.7200/+31.5420+130.7000/+31.5415+130.6800/+31.5479+130.6600/+31.5600+130.6479/+31.5800+130.6412/+31.5988+130.6600/ 東 8 鹿児島県鹿児島市 4620100 鹿児島県垂水市 4621400 2026-10-31T00:00:00+09:00 2026-10-31T03:00:00+09:00 降灰 70 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東 140 宮崎県日南市 4520400 宮崎県串間市 4520700 鹿児島県鹿児島市 4620100 鹿児島県鹿屋市 4620300 鹿児島県垂水市 4621400 鹿児島県志布志市 4622100 鹿児島県大崎町 4646800 鹿児島県東串良町 4648200 鹿児島県肝付町 4649200 小さな噴石の落下 75 1 +31.5988+130.6600/+31.5988+130.6800/+31.5985+130.7000/+31.5800+130.7185/+31.5764+130.7200/+31.5663+130.7400/+31.5600+130.7576/+31.5400+130.7559/+31.5341+130.7400/+31.5305+130.7200/+31.5400+130.7008/+31.5401+130.7000/+31.5408+130.6800/+31.5422+130.6600/+31.5600+130.6422/+31.5800+130.6412/+31.5988+130.6600/ 南東 9 鹿児島県鹿児島市 4620100 鹿児島県垂水市 4621400 2026-10-31T03:00:00+09:00 2026-10-31T06:00:00+09:00 降灰 70 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南東 140 宮崎県串間市 4520700 鹿児島県鹿児島市 4620100 鹿児島県鹿屋市 4620300 鹿児島県垂水市 4621400 鹿児島県志布志市 4622100 鹿児島県大崎町 4646800 鹿児島県東串良町 4648200 鹿児島県肝付町 4649200 小さな噴石の落下 75 1 +31.5988+130.6600/+31.5988+130.6800/+31.5984+130.7000/+31.5800+130.7184/+31.5735+130.7200/+31.5687+130.7400/+31.5600+130.7487/+31.5400+130.7531/+31.5269+130.7400/+31.5250+130.7200/+31.5274+130.7000/+31.5390+130.6800/+31.5400+130.6791/+31.5414+130.6600/+31.5600+130.6414/+31.5800+130.6412/+31.5988+130.6600/ 南東 9 鹿児島県鹿児島市 4620100 鹿児島県垂水市 4621400 2026-10-31T06:00:00+09:00 2026-10-31T09:00:00+09:00 降灰 70 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南東 140 鹿児島県鹿児島市 4620100 鹿児島県鹿屋市 4620300 鹿児島県垂水市 4621400 鹿児島県志布志市 4622100 鹿児島県大崎町 4646800 鹿児島県東串良町 4648200 鹿児島県肝付町 4649200 小さな噴石の落下 75 1 +31.5988+130.6600/+31.5988+130.6800/+31.5800+130.6987/+31.5772+130.7000/+31.5712+130.7200/+31.5600+130.7312/+31.5429+130.7400/+31.5400+130.7480/+31.5200+130.7408/+31.5194+130.7400/+31.5197+130.7200/+31.5200+130.7187/+31.5210+130.7000/+31.5247+130.6800/+31.5400+130.6653/+31.5412+130.6600/+31.5600+130.6412/+31.5800+130.6412/+31.5988+130.6600/ 南東 10 鹿児島県鹿児島市 4620100 鹿児島県垂水市 4621400 2026-10-31T09:00:00+09:00 2026-10-31T12:00:00+09:00 降灰 70 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南東 120 鹿児島県鹿児島市 4620100 鹿児島県鹿屋市 4620300 鹿児島県垂水市 4621400 鹿児島県大崎町 4646800 鹿児島県東串良町 4648200 鹿児島県錦江町 4649000 鹿児島県肝付町 4649200 小さな噴石の落下 75 1 +31.5988+130.6600/+31.5988+130.6800/+31.5800+130.6988/+31.5771+130.7000/+31.5600+130.7171/+31.5432+130.7200/+31.5400+130.7232/+31.5200+130.7209/+31.5194+130.7200/+31.5200+130.7179/+31.5214+130.7000/+31.5240+130.6800/+31.5400+130.6654/+31.5412+130.6600/+31.5600+130.6412/+31.5800+130.6412/+31.5988+130.6600/ 南東 9 鹿児島県鹿児島市 4620100 鹿児島県垂水市 4621400 　現在、桜島は噴火警戒レベル３（入山規制）です。桜島で噴火が発生した場合には、３０日２１時から２４時までは火口から東方向、３１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。 　３０日１８時から３１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 　３０日１８時から２１時まで　東（鹿屋市輝北方向）　　１２０ｋｍ　８ｋｍ　　　　　 　３０日２１時から２４時まで　東（鹿屋市輝北方向）　　１１０ｋｍ　８ｋｍ　　　　　 　３１日００時から０３時まで　東（鹿屋市輝北方向）　　１４０ｋｍ　９ｋｍ　　　　　 　３１日０３時から０６時まで　南東（垂水・鹿屋方向）　１４０ｋｍ　９ｋｍ　　　　　 　３１日０６時から０９時まで　南東（垂水・鹿屋方向）　１４０ｋｍ　１０ｋｍ　　　　 　３１日０９時から１２時まで　南東（垂水・鹿屋方向）　１２０ｋｍ　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：鹿児島市、垂水市、鹿屋市、大崎町、曽於市、志布志市、東串良町、肝付町、錦江町 　宮崎県　：日南市、串間市 　 　噴煙が火口縁上３０００ｍ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。