2026-08-03T08:00:00Z 通常 気象庁本庁 気象庁 2026-08-03T17:00:00+09:00 2026-08-03T18:00:00+09:00 2026-08-04T12:00:00+09:00 508 発表 1 降灰予報 1.1_0 　現在、薩摩硫黄島は噴火警戒レベル２（火口周辺規制）です。薩摩硫黄島で噴火が発生した場合には、３日２１時から２４時までは火口から西方向、４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 薩摩硫黄島 508 降灰 70 鹿児島県三島村 4630300 小さな噴石の落下 75 鹿児島県三島村 4630300 降灰予報（定時） 06 薩摩硫黄島 508 +3047.58+13018.32+704/ 降灰 70 鹿児島県三島村 4630300 小さな噴石の落下 75 鹿児島県三島村 4630300 2026-08-03T18:00:00+09:00 2026-08-03T21:00:00+09:00 降灰 70 +30.8190+130.2600/+30.8199+130.2800/+30.8199+130.3000/+30.8076+130.3200/+30.8000+130.3275/+30.7800+130.3202/+30.7798+130.3200/+30.7601+130.3000/+30.7600+130.2948/+30.7452+130.2800/+30.7403+130.2600/+30.7401+130.2400/+30.7400+130.2345/+30.7257+130.2200/+30.7210+130.2000/+30.7203+130.1800/+30.7200+130.1758/+30.7058+130.1600/+30.7017+130.1400/+30.7004+130.1200/+30.7000+130.1154/+30.6883+130.1000/+30.6829+130.0800/+30.6807+130.0600/+30.6800+130.0554/+30.6687+130.0400/+30.6612+130.0200/+30.6600+130.0096/+30.6536+130.0000/+30.6459+129.9800/+30.6400+129.9664/+30.6368+129.9600/+30.6309+129.9400/+30.6200+129.9204/+30.6197+129.9200/+30.6154+129.9000/+30.6122+129.8800/+30.6099+129.8600/+30.6072+129.8400/+30.6014+129.8200/+30.6000+129.8168/+30.5919+129.8000/+30.5898+129.7800/+30.5878+129.7600/+30.5862+129.7400/+30.5846+129.7200/+30.5826+129.7000/+30.5837+129.6800/+30.5858+129.6600/+30.5986+129.6400/+30.6000+129.6391/+30.6004+129.6400/+30.6077+129.6600/+30.6131+129.6800/+30.6186+129.7000/+30.6200+129.7062/+30.6240+129.7200/+30.6342+129.7400/+30.6400+129.7448/+30.6541+129.7600/+30.6600+129.7645/+30.6688+129.7800/+30.6716+129.8000/+30.6800+129.8184/+30.6814+129.8200/+30.6932+129.8400/+30.7000+129.8545/+30.7019+129.8600/+30.7071+129.8800/+30.7113+129.9000/+30.7145+129.9200/+30.7189+129.9400/+30.7200+129.9441/+30.7310+129.9600/+30.7390+129.9800/+30.7371+130.0000/+30.7400+130.0198/+30.7401+130.0200/+30.7523+130.0400/+30.7565+130.0600/+30.7592+130.0800/+30.7600+130.0841/+30.7704+130.1000/+30.7766+130.1200/+30.7785+130.1400/+30.7798+130.1600/+30.7800+130.1620/+30.7946+130.1800/+30.7987+130.2000/+30.7997+130.2200/+30.7999+130.2400/+30.8000+130.2406/+30.8190+130.2600/ 西 70 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8087+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3187/+30.7613+130.3000/+30.7655+130.2800/+30.7800+130.2615/+30.8000+130.2713/+30.8087+130.2800/ 西 3 鹿児島県三島村 4630300 2026-08-03T21:00:00+09:00 2026-08-04T00:00:00+09:00 降灰 70 +30.8136+130.2400/+30.8194+130.2600/+30.8199+130.2800/+30.8199+130.3000/+30.8153+130.3200/+30.8000+130.3353/+30.7800+130.3317/+30.7683+130.3200/+30.7601+130.3000/+30.7600+130.2975/+30.7425+130.2800/+30.7403+130.2600/+30.7401+130.2400/+30.7400+130.2387/+30.7224+130.2200/+30.7207+130.2000/+30.7200+130.1886/+30.7117+130.1800/+30.7026+130.1600/+30.7006+130.1400/+30.7000+130.1353/+30.6884+130.1200/+30.6830+130.1000/+30.6806+130.0800/+30.6800+130.0765/+30.6680+130.0600/+30.6629+130.0400/+30.6600+130.0307/+30.6470+130.0200/+30.6403+130.0000/+30.6400+129.9987/+30.6333+129.9800/+30.6284+129.9600/+30.6250+129.9400/+30.6200+129.9284/+30.6151+129.9200/+30.6118+129.9000/+30.6088+129.8800/+30.6053+129.8600/+30.6000+129.8400/+30.5886+129.8200/+30.5828+129.8000/+30.5816+129.7800/+30.5802+129.7600/+30.5800+129.7567/+30.5791+129.7400/+30.5780+129.7200/+30.5762+129.7000/+30.5800+129.6922/+30.5921+129.6800/+30.6000+129.6761/+30.6026+129.6800/+30.6130+129.7000/+30.6182+129.7200/+30.6200+129.7266/+30.6240+129.7400/+30.6330+129.7600/+30.6400+129.7680/+30.6508+129.7800/+30.6600+129.7900/+30.6629+129.8000/+30.6678+129.8200/+30.6730+129.8400/+30.6800+129.8558/+30.6836+129.8600/+30.6948+129.8800/+30.7000+129.8869/+30.7058+129.9000/+30.7091+129.9200/+30.7156+129.9400/+30.7196+129.9600/+30.7200+129.9620/+30.7305+129.9800/+30.7338+130.0000/+30.7364+130.0200/+30.7400+130.0353/+30.7432+130.0400/+30.7567+130.0600/+30.7592+130.0800/+30.7600+130.0850/+30.7715+130.1000/+30.7800+130.1187/+30.7806+130.1200/+30.7836+130.1400/+30.7936+130.1600/+30.7974+130.1800/+30.7994+130.2000/+30.7999+130.2200/+30.8000+130.2216/+30.8136+130.2400/ 西 60 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8142+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3178/+30.7621+130.3000/+30.7660+130.2800/+30.7800+130.2622/+30.8000+130.2657/+30.8142+130.2800/ 西 3 鹿児島県三島村 4630300 2026-08-04T00:00:00+09:00 2026-08-04T03:00:00+09:00 降灰 70 +30.8017+130.1800/+30.8142+130.2000/+30.8185+130.2200/+30.8196+130.2400/+30.8199+130.2600/+30.8199+130.2800/+30.8199+130.3000/+30.8000+130.3200/+30.7800+130.3199/+30.7601+130.3000/+30.7600+130.2800/+30.7600+130.2600/+30.7600+130.2552/+30.7452+130.2400/+30.7412+130.2200/+30.7407+130.2000/+30.7405+130.1800/+30.7403+130.1600/+30.7400+130.1532/+30.7298+130.1400/+30.7240+130.1200/+30.7222+130.1000/+30.7211+130.0800/+30.7200+130.0671/+30.7152+130.0600/+30.7098+130.0400/+30.7050+130.0200/+30.7000+130.0095/+30.6910+130.0000/+30.6888+129.9800/+30.6855+129.9600/+30.6830+129.9400/+30.6807+129.9200/+30.6812+129.9000/+30.6803+129.8800/+30.6800+129.8762/+30.6770+129.8600/+30.6739+129.8400/+30.6699+129.8200/+30.6673+129.8000/+30.6667+129.7800/+30.6672+129.7600/+30.6672+129.7400/+30.6660+129.7200/+30.6624+129.7000/+30.6678+129.6800/+30.6800+129.6741/+30.7000+129.6721/+30.7043+129.6800/+30.7131+129.7000/+30.7200+129.7162/+30.7215+129.7200/+30.7284+129.7400/+30.7356+129.7600/+30.7400+129.7704/+30.7453+129.7800/+30.7510+129.8000/+30.7543+129.8200/+30.7572+129.8400/+30.7600+129.8505/+30.7655+129.8600/+30.7735+129.8800/+30.7722+129.9000/+30.7738+129.9200/+30.7759+129.9400/+30.7781+129.9600/+30.7800+129.9793/+30.7803+129.9800/+30.7800+129.9807/+30.7789+130.0000/+30.7800+130.0181/+30.7806+130.0200/+30.7882+130.0400/+30.7928+130.0600/+30.7958+130.0800/+30.7977+130.1000/+30.7989+130.1200/+30.7994+130.1400/+30.7998+130.1600/+30.8000+130.1763/+30.8017+130.1800/ 西 60 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8144+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3148/+30.7652+130.3000/+30.7668+130.2800/+30.7800+130.2622/+30.8000+130.2609/+30.8144+130.2800/ 西 3 鹿児島県三島村 4630300 2026-08-04T03:00:00+09:00 2026-08-04T06:00:00+09:00 降灰 70 +30.8085+130.2200/+30.8165+130.2400/+30.8196+130.2600/+30.8199+130.2800/+30.8199+130.3000/+30.8145+130.3200/+30.8000+130.3345/+30.7800+130.3306/+30.7694+130.3200/+30.7601+130.3000/+30.7600+130.2844/+30.7556+130.2800/+30.7406+130.2600/+30.7402+130.2400/+30.7400+130.2222/+30.7378+130.2200/+30.7226+130.2000/+30.7209+130.1800/+30.7201+130.1600/+30.7200+130.1594/+30.7055+130.1400/+30.7022+130.1200/+30.7005+130.1000/+30.7000+130.0969/+30.6883+130.0800/+30.6837+130.0600/+30.6809+130.0400/+30.6800+130.0377/+30.6667+130.0200/+30.6647+130.0000/+30.6623+129.9800/+30.6605+129.9600/+30.6600+129.9570/+30.6528+129.9400/+30.6470+129.9200/+30.6462+129.9000/+30.6459+129.8800/+30.6447+129.8600/+30.6430+129.8400/+30.6438+129.8200/+30.6428+129.8000/+30.6426+129.7800/+30.6424+129.7600/+30.6477+129.7400/+30.6600+129.7235/+30.6750+129.7400/+30.6800+129.7446/+30.7000+129.7560/+30.7019+129.7600/+30.7113+129.7800/+30.7156+129.8000/+30.7200+129.8075/+30.7259+129.8200/+30.7330+129.8400/+30.7400+129.8588/+30.7404+129.8600/+30.7456+129.8800/+30.7476+129.9000/+30.7517+129.9200/+30.7547+129.9400/+30.7585+129.9600/+30.7600+129.9671/+30.7638+129.9800/+30.7600+129.9885/+30.7583+130.0000/+30.7600+130.0106/+30.7646+130.0200/+30.7683+130.0400/+30.7743+130.0600/+30.7762+130.0800/+30.7791+130.1000/+30.7800+130.1162/+30.7815+130.1200/+30.7944+130.1400/+30.7975+130.1600/+30.7991+130.1800/+30.7999+130.2000/+30.8000+130.2035/+30.8085+130.2200/ 西 60 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8149+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3158/+30.7642+130.3000/+30.7675+130.2800/+30.7800+130.2640/+30.8000+130.2633/+30.8149+130.2800/ 西 3 鹿児島県三島村 4630300 2026-08-04T06:00:00+09:00 2026-08-04T09:00:00+09:00 降灰 70 +30.8189+130.2600/+30.8199+130.2800/+30.8199+130.3000/+30.8000+130.3200/+30.7800+130.3200/+30.7601+130.3000/+30.7600+130.2966/+30.7434+130.2800/+30.7402+130.2600/+30.7401+130.2400/+30.7400+130.2379/+30.7227+130.2200/+30.7207+130.2000/+30.7200+130.1835/+30.7166+130.1800/+30.7030+130.1600/+30.7008+130.1400/+30.7000+130.1328/+30.6898+130.1200/+30.6831+130.1000/+30.6805+130.0800/+30.6800+130.0769/+30.6686+130.0600/+30.6634+130.0400/+30.6600+130.0307/+30.6478+130.0200/+30.6405+130.0000/+30.6400+129.9982/+30.6330+129.9800/+30.6273+129.9600/+30.6235+129.9400/+30.6200+129.9318/+30.6138+129.9200/+30.6105+129.9000/+30.6074+129.8800/+30.6044+129.8600/+30.6000+129.8413/+30.5992+129.8400/+30.5915+129.8200/+30.5857+129.8000/+30.5836+129.7800/+30.5813+129.7600/+30.5807+129.7400/+30.5821+129.7200/+30.5839+129.7000/+30.5922+129.6800/+30.6000+129.6687/+30.6059+129.6800/+30.6163+129.7000/+30.6200+129.7098/+30.6243+129.7200/+30.6346+129.7400/+30.6400+129.7461/+30.6499+129.7600/+30.6600+129.7704/+30.6648+129.7800/+30.6687+129.8000/+30.6741+129.8200/+30.6800+129.8373/+30.6814+129.8400/+30.6951+129.8600/+30.7000+129.8729/+30.7020+129.8800/+30.7079+129.9000/+30.7106+129.9200/+30.7159+129.9400/+30.7200+129.9564/+30.7231+129.9600/+30.7355+129.9800/+30.7347+130.0000/+30.7371+130.0200/+30.7396+130.0400/+30.7400+130.0419/+30.7521+130.0600/+30.7574+130.0800/+30.7593+130.1000/+30.7600+130.1053/+30.7713+130.1200/+30.7773+130.1400/+30.7793+130.1600/+30.7800+130.1764/+30.7832+130.1800/+30.7980+130.2000/+30.7996+130.2200/+30.7999+130.2400/+30.8000+130.2409/+30.8189+130.2600/ 西 60 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8137+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3175/+30.7625+130.3000/+30.7663+130.2800/+30.7800+130.2629/+30.8000+130.2663/+30.8137+130.2800/ 西 3 鹿児島県三島村 4630300 2026-08-04T09:00:00+09:00 2026-08-04T12:00:00+09:00 降灰 70 +30.8088+130.2400/+30.8196+130.2600/+30.8199+130.2800/+30.8199+130.3000/+30.8000+130.3200/+30.7800+130.3199/+30.7601+130.3000/+30.7600+130.2800/+30.7600+130.2797/+30.7409+130.2600/+30.7402+130.2400/+30.7401+130.2200/+30.7400+130.2181/+30.7240+130.2000/+30.7213+130.1800/+30.7203+130.1600/+30.7200+130.1566/+30.7077+130.1400/+30.7030+130.1200/+30.7012+130.1000/+30.7000+130.0894/+30.6935+130.0800/+30.6855+130.0600/+30.6819+130.0400/+30.6800+130.0357/+30.6662+130.0200/+30.6638+130.0000/+30.6618+129.9800/+30.6600+129.9685/+30.6542+129.9600/+30.6457+129.9400/+30.6432+129.9200/+30.6417+129.9000/+30.6402+129.8800/+30.6400+129.8785/+30.6328+129.8600/+30.6272+129.8400/+30.6213+129.8200/+30.6200+129.8030/+30.6198+129.8000/+30.6185+129.7800/+30.6170+129.7600/+30.6166+129.7400/+30.6180+129.7200/+30.6200+129.7000/+30.6200+129.6999/+30.6239+129.6800/+30.6306+129.6600/+30.6400+129.6434/+30.6600+129.6591/+30.6603+129.6600/+30.6670+129.6800/+30.6726+129.7000/+30.6795+129.7200/+30.6800+129.7215/+30.6859+129.7400/+30.6923+129.7600/+30.7000+129.7789/+30.7005+129.7800/+30.7052+129.8000/+30.7098+129.8200/+30.7133+129.8400/+30.7173+129.8600/+30.7200+129.8746/+30.7225+129.8800/+30.7265+129.9000/+30.7353+129.9200/+30.7400+129.9352/+30.7419+129.9400/+30.7481+129.9600/+30.7521+129.9800/+30.7464+130.0000/+30.7534+130.0200/+30.7572+130.0400/+30.7590+130.0600/+30.7600+130.0706/+30.7669+130.0800/+30.7762+130.1000/+30.7784+130.1200/+30.7794+130.1400/+30.7800+130.1499/+30.7889+130.1600/+30.7981+130.1800/+30.7995+130.2000/+30.7998+130.2200/+30.8000+130.2312/+30.8088+130.2400/ 西 60 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8132+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3170/+30.7630+130.3000/+30.7661+130.2800/+30.7800+130.2628/+30.8000+130.2668/+30.8132+130.2800/ 西 3 鹿児島県三島村 4630300 　現在、薩摩硫黄島は噴火警戒レベル２（火口周辺規制）です。薩摩硫黄島で噴火が発生した場合には、３日２１時から２４時までは火口から西方向、４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。 　３日１８時から４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 　０３日１８時から２１時まで　西　　　　　　　７０ｋｍ　　３ｋｍ　　　　　 　０３日２１時から２４時まで　西　　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　０４日００時から０３時まで　西　　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　０４日０３時から０６時まで　西　　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　０４日０６時から０９時まで　西　　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　０４日０９時から１２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：三島村 　 　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。