2026-08-23T14:00:00Z 通常 気象庁本庁 気象庁 2026-08-23T23:00:00+09:00 2026-08-24T00:00:00+09:00 2026-08-24T18:00:00+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、２４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 2026-08-24T00:00:00+09:00 2026-08-24T03:00:00+09:00 降灰 70 +29.8609+129.1600/+29.8600+129.1698/+29.8571+129.1800/+29.8547+129.2000/+29.8461+129.2200/+29.8416+129.2400/+29.8400+129.2515/+29.8394+129.2600/+29.8343+129.2800/+29.8302+129.3000/+29.8270+129.3200/+29.8231+129.3400/+29.8200+129.3433/+29.8109+129.3600/+29.8042+129.3800/+29.8000+129.3897/+29.7971+129.4000/+29.7921+129.4200/+29.7852+129.4400/+29.7800+129.4450/+29.7635+129.4600/+29.7600+129.4646/+29.7578+129.4800/+29.7522+129.5000/+29.7400+129.5158/+29.7394+129.5200/+29.7372+129.5400/+29.7295+129.5600/+29.7200+129.5702/+29.7192+129.5800/+29.7173+129.6000/+29.7000+129.6191/+29.6999+129.6200/+29.6996+129.6400/+29.6982+129.6600/+29.6800+129.6783/+29.6800+129.6800/+29.6799+129.7000/+29.6789+129.7200/+29.6600+129.7389/+29.6400+129.7398/+29.6202+129.7200/+29.6200+129.7000/+29.6201+129.6800/+29.6203+129.6600/+29.6226+129.6400/+29.6400+129.6206/+29.6401+129.6200/+29.6408+129.6000/+29.6430+129.5800/+29.6519+129.5600/+29.6600+129.5491/+29.6611+129.5400/+29.6639+129.5200/+29.6691+129.5000/+29.6800+129.4834/+29.6809+129.4800/+29.6859+129.4600/+29.6925+129.4400/+29.7000+129.4261/+29.7016+129.4200/+29.7043+129.4000/+29.7113+129.3800/+29.7200+129.3600/+29.7274+129.3400/+29.7375+129.3200/+29.7400+129.3065/+29.7412+129.3000/+29.7586+129.2800/+29.7600+129.2778/+29.7674+129.2600/+29.7764+129.2400/+29.7800+129.2286/+29.7842+129.2200/+29.7993+129.2000/+29.8000+129.1989/+29.8200+129.1894/+29.8281+129.1800/+29.8355+129.1600/+29.8400+129.1460/+29.8600+129.1479/+29.8609+129.1600/ 西 60 鹿児島県十島村 4630400 小さな噴石の落下 75 1 +29.6604+129.6800/+29.6600+129.6824/+29.6598+129.7000/+29.6588+129.7200/+29.6400+129.7388/+29.6212+129.7200/+29.6212+129.7000/+29.6362+129.6800/+29.6400+129.6752/+29.6600+129.6794/+29.6604+129.6800/ 西 4 鹿児島県十島村 4630400 2026-08-24T03:00:00+09:00 2026-08-24T06:00:00+09:00 降灰 70 +29.7207+129.2000/+29.7338+129.2200/+29.7354+129.2400/+29.7336+129.2600/+29.7318+129.2800/+29.7305+129.3000/+29.7268+129.3200/+29.7231+129.3400/+29.7200+129.3592/+29.7199+129.3600/+29.7184+129.3800/+29.7165+129.4000/+29.7079+129.4200/+29.7037+129.4400/+29.7000+129.4504/+29.6990+129.4600/+29.6972+129.4800/+29.6962+129.5000/+29.6946+129.5200/+29.6930+129.5400/+29.6907+129.5600/+29.6838+129.5800/+29.6800+129.5866/+29.6796+129.6000/+29.6794+129.6200/+29.6795+129.6400/+29.6796+129.6600/+29.6797+129.6800/+29.6798+129.7000/+29.6779+129.7200/+29.6600+129.7379/+29.6400+129.7398/+29.6202+129.7200/+29.6200+129.7175/+29.6025+129.7000/+29.6007+129.6800/+29.6007+129.6600/+29.6008+129.6400/+29.6010+129.6200/+29.6012+129.6000/+29.6012+129.5800/+29.6011+129.5600/+29.6014+129.5400/+29.6020+129.5200/+29.6021+129.5000/+29.6034+129.4800/+29.6057+129.4600/+29.6088+129.4400/+29.6095+129.4200/+29.6084+129.4000/+29.6131+129.3800/+29.6186+129.3600/+29.6200+129.3555/+29.6241+129.3400/+29.6313+129.3200/+29.6400+129.3042/+29.6419+129.3000/+29.6508+129.2800/+29.6561+129.2600/+29.6600+129.2456/+29.6616+129.2400/+29.6683+129.2200/+29.6770+129.2000/+29.6800+129.1955/+29.6947+129.1800/+29.7000+129.1716/+29.7091+129.1800/+29.7200+129.1983/+29.7207+129.2000/ 西 50 鹿児島県十島村 4630400 小さな噴石の落下 75 1 +29.6588+129.7000/+29.6588+129.7200/+29.6400+129.7388/+29.6212+129.7200/+29.6212+129.7000/+29.6400+129.6800/+29.6588+129.7000/ 南西 1 鹿児島県十島村 4630400 2026-08-24T06:00:00+09:00 2026-08-24T09:00:00+09:00 降灰 70 +29.6629+129.2400/+29.6651+129.2600/+29.6670+129.2800/+29.6678+129.3000/+29.6700+129.3200/+29.6739+129.3400/+29.6762+129.3600/+29.6774+129.3800/+29.6787+129.4000/+29.6747+129.4200/+29.6743+129.4400/+29.6751+129.4600/+29.6754+129.4800/+29.6758+129.5000/+29.6761+129.5200/+29.6763+129.5400/+29.6769+129.5600/+29.6774+129.5800/+29.6777+129.6000/+29.6782+129.6200/+29.6786+129.6400/+29.6790+129.6600/+29.6794+129.6800/+29.6796+129.7000/+29.6765+129.7200/+29.6600+129.7365/+29.6400+129.7398/+29.6202+129.7200/+29.6200+129.7160/+29.6040+129.7000/+29.6009+129.6800/+29.6007+129.6600/+29.6007+129.6400/+29.6008+129.6200/+29.6009+129.6000/+29.6009+129.5800/+29.6010+129.5600/+29.6008+129.5400/+29.6001+129.5200/+29.6000+129.5114/+29.5980+129.5000/+29.5952+129.4800/+29.5908+129.4600/+29.5895+129.4400/+29.5871+129.4200/+29.5840+129.4000/+29.5835+129.3800/+29.5839+129.3600/+29.5841+129.3400/+29.5839+129.3200/+29.5800+129.3058/+29.5775+129.3000/+29.5782+129.2800/+29.5797+129.2600/+29.5800+129.2570/+29.5817+129.2400/+29.5827+129.2200/+29.5833+129.2000/+29.5863+129.1800/+29.5892+129.1600/+29.5920+129.1400/+29.5947+129.1200/+29.5978+129.1000/+29.5993+129.0800/+29.6000+129.0713/+29.6010+129.0800/+29.6034+129.1000/+29.6093+129.1200/+29.6160+129.1400/+29.6200+129.1491/+29.6253+129.1600/+29.6384+129.1800/+29.6400+129.1807/+29.6520+129.2000/+29.6585+129.2200/+29.6600+129.2261/+29.6629+129.2400/ 西 60 鹿児島県十島村 4630400 小さな噴石の落下 75 1 +29.6461+129.6800/+29.6588+129.7000/+29.6588+129.7200/+29.6400+129.7388/+29.6212+129.7200/+29.6212+129.7000/+29.6339+129.6800/+29.6400+129.6719/+29.6461+129.6800/ 西 3 鹿児島県十島村 4630400 2026-08-24T09:00:00+09:00 2026-08-24T12:00:00+09:00 降灰 70 +29.6607+129.2200/+29.6622+129.2400/+29.6658+129.2600/+29.6685+129.2800/+29.6681+129.3000/+29.6689+129.3200/+29.6693+129.3400/+29.6699+129.3600/+29.6705+129.3800/+29.6733+129.4000/+29.6686+129.4200/+29.6701+129.4400/+29.6709+129.4600/+29.6711+129.4800/+29.6703+129.5000/+29.6692+129.5200/+29.6709+129.5400/+29.6728+129.5600/+29.6736+129.5800/+29.6740+129.6000/+29.6745+129.6200/+29.6753+129.6400/+29.6765+129.6600/+29.6782+129.6800/+29.6791+129.7000/+29.6751+129.7200/+29.6600+129.7351/+29.6400+129.7398/+29.6202+129.7200/+29.6200+129.7193/+29.6008+129.7000/+29.6002+129.6800/+29.6002+129.6600/+29.6003+129.6400/+29.6003+129.6200/+29.6001+129.6000/+29.6000+129.5963/+29.5886+129.5800/+29.5848+129.5600/+29.5838+129.5400/+29.5831+129.5200/+29.5825+129.5000/+29.5818+129.4800/+29.5814+129.4600/+29.5800+129.4401/+29.5800+129.4400/+29.5785+129.4200/+29.5714+129.4000/+29.5717+129.3800/+29.5750+129.3600/+29.5783+129.3400/+29.5800+129.3258/+29.5803+129.3200/+29.5800+129.3186/+29.5743+129.3000/+29.5762+129.2800/+29.5787+129.2600/+29.5800+129.2518/+29.5821+129.2400/+29.5850+129.2200/+29.5872+129.2000/+29.5897+129.1800/+29.5920+129.1600/+29.5957+129.1400/+29.6000+129.1246/+29.6200+129.1275/+29.6400+129.1305/+29.6449+129.1400/+29.6521+129.1600/+29.6566+129.1800/+29.6589+129.2000/+29.6600+129.2118/+29.6607+129.2200/ 西 60 鹿児島県十島村 4630400 小さな噴石の落下 75 1 +29.6456+129.6800/+29.6588+129.7000/+29.6588+129.7200/+29.6400+129.7388/+29.6212+129.7200/+29.6212+129.7000/+29.6343+129.6800/+29.6400+129.6726/+29.6456+129.6800/ 西 3 鹿児島県十島村 4630400 2026-08-24T12:00:00+09:00 2026-08-24T15:00:00+09:00 降灰 70 +29.6836+129.4000/+29.6800+129.4048/+29.6768+129.4200/+29.6764+129.4400/+29.6762+129.4600/+29.6771+129.4800/+29.6774+129.5000/+29.6774+129.5200/+29.6774+129.5400/+29.6777+129.5600/+29.6779+129.5800/+29.6781+129.6000/+29.6786+129.6200/+29.6788+129.6400/+29.6792+129.6600/+29.6795+129.6800/+29.6795+129.7000/+29.6755+129.7200/+29.6600+129.7355/+29.6400+129.7397/+29.6203+129.7200/+29.6200+129.7171/+29.6029+129.7000/+29.6007+129.6800/+29.6006+129.6600/+29.6006+129.6400/+29.6007+129.6200/+29.6008+129.6000/+29.6009+129.5800/+29.6009+129.5600/+29.6009+129.5400/+29.6006+129.5200/+29.6002+129.5000/+29.6002+129.4800/+29.6002+129.4600/+29.6001+129.4400/+29.6000+129.4355/+29.5977+129.4200/+29.5881+129.4000/+29.5885+129.3800/+29.5892+129.3600/+29.5894+129.3400/+29.5889+129.3200/+29.5842+129.3000/+29.5852+129.2800/+29.5866+129.2600/+29.5882+129.2400/+29.5907+129.2200/+29.5921+129.2000/+29.5939+129.1800/+29.5975+129.1600/+29.6000+129.1404/+29.6002+129.1400/+29.6071+129.1200/+29.6200+129.1061/+29.6337+129.1000/+29.6400+129.0965/+29.6409+129.1000/+29.6515+129.1200/+29.6600+129.1366/+29.6607+129.1400/+29.6644+129.1600/+29.6677+129.1800/+29.6651+129.2000/+29.6685+129.2200/+29.6712+129.2400/+29.6723+129.2600/+29.6732+129.2800/+29.6743+129.3000/+29.6768+129.3200/+29.6781+129.3400/+29.6788+129.3600/+29.6791+129.3800/+29.6800+129.3861/+29.6836+129.4000/ 西 60 鹿児島県十島村 4630400 小さな噴石の落下 75 1 +29.6459+129.6800/+29.6588+129.7000/+29.6588+129.7200/+29.6400+129.7388/+29.6212+129.7200/+29.6212+129.7000/+29.6341+129.6800/+29.6400+129.6716/+29.6459+129.6800/ 西 3 鹿児島県十島村 4630400 2026-08-24T15:00:00+09:00 2026-08-24T18:00:00+09:00 降灰 70 +29.7006+129.1200/+29.7042+129.1400/+29.7051+129.1600/+29.7036+129.1800/+29.7060+129.2000/+29.7034+129.2200/+29.7033+129.2400/+29.7030+129.2600/+29.7027+129.2800/+29.7020+129.3000/+29.7000+129.3024/+29.6927+129.3200/+29.6922+129.3400/+29.6918+129.3600/+29.6916+129.3800/+29.6911+129.4000/+29.6800+129.4124/+29.6775+129.4200/+29.6771+129.4400/+29.6766+129.4600/+29.6762+129.4800/+29.6761+129.5000/+29.6755+129.5200/+29.6758+129.5400/+29.6756+129.5600/+29.6757+129.5800/+29.6762+129.6000/+29.6765+129.6200/+29.6771+129.6400/+29.6779+129.6600/+29.6789+129.6800/+29.6793+129.7000/+29.6747+129.7200/+29.6600+129.7347/+29.6400+129.7397/+29.6203+129.7200/+29.6200+129.7100/+29.6100+129.7000/+29.6013+129.6800/+29.6009+129.6600/+29.6009+129.6400/+29.6010+129.6200/+29.6012+129.6000/+29.6014+129.5800/+29.6017+129.5600/+29.6020+129.5400/+29.6023+129.5200/+29.6032+129.5000/+29.6036+129.4800/+29.6045+129.4600/+29.6055+129.4400/+29.6064+129.4200/+29.6016+129.4000/+29.6032+129.3800/+29.6041+129.3600/+29.6058+129.3400/+29.6086+129.3200/+29.6115+129.3000/+29.6114+129.2800/+29.6135+129.2600/+29.6163+129.2400/+29.6191+129.2200/+29.6200+129.2147/+29.6231+129.2000/+29.6254+129.1800/+29.6294+129.1600/+29.6343+129.1400/+29.6400+129.1210/+29.6408+129.1200/+29.6591+129.1000/+29.6600+129.0979/+29.6645+129.1000/+29.6800+129.1046/+29.7000+129.1170/+29.7006+129.1200/ 西 60 鹿児島県十島村 4630400 小さな噴石の落下 75 1 +29.6459+129.6800/+29.6588+129.7000/+29.6588+129.7200/+29.6400+129.7388/+29.6212+129.7200/+29.6212+129.7000/+29.6341+129.6800/+29.6400+129.6715/+29.6459+129.6800/ 西 3 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、２４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。 　２４日０時から２４日１８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 　２４日００時から０３時まで　西　　　　　　　６０ｋｍ　　４ｋｍ　　　　　 　２４日０３時から０６時まで　西　　　　　　　５０ｋｍ　　１ｋｍ　　　　　 　２４日０６時から０９時まで　西　　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　２４日０９時から１２時まで　西　　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　２４日１２時から１５時まで　西　　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　２４日１５時から１８時まで　西　　　　　　　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。 　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。