2026-08-02T20:00:00Z 通常 気象庁本庁 気象庁 2026-08-03T05:00:00+09:00 2026-08-03T06:00:00+09:00 2026-08-04T00:00:00+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０９時から１２時までは火口から西方向、３日２１時から２４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 2026-08-03T06:00:00+09:00 2026-08-03T09:00:00+09:00 降灰 70 +30.8198+130.2800/+30.8200+130.3000/+30.8187+130.3200/+30.8000+130.3386/+30.7800+130.3385/+30.7615+130.3200/+30.7600+130.3197/+30.7400+130.3113/+30.7280+130.3000/+30.7200+130.2962/+30.7014+130.2800/+30.7000+130.2786/+30.6800+130.2619/+30.6773+130.2600/+30.6600+130.2469/+30.6541+130.2400/+30.6409+130.2200/+30.6400+130.2186/+30.6200+130.2006/+30.6193+130.2000/+30.6108+130.1800/+30.6000+130.1725/+30.5894+130.1600/+30.5861+130.1400/+30.5800+130.1312/+30.5656+130.1200/+30.5600+130.1104/+30.5526+130.1000/+30.5459+130.0800/+30.5433+130.0600/+30.5532+130.0400/+30.5600+130.0360/+30.5800+130.0346/+30.6000+130.0372/+30.6042+130.0400/+30.6200+130.0472/+30.6400+130.0546/+30.6463+130.0600/+30.6600+130.0744/+30.6645+130.0800/+30.6800+130.0950/+30.6842+130.1000/+30.7000+130.1129/+30.7063+130.1200/+30.7200+130.1362/+30.7235+130.1400/+30.7382+130.1600/+30.7400+130.1621/+30.7555+130.1800/+30.7600+130.1902/+30.7691+130.2000/+30.7787+130.2200/+30.7800+130.2226/+30.7970+130.2400/+30.7999+130.2600/+30.8000+130.2601/+30.8198+130.2800/ 南西 40 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3180/+30.7617+130.3000/+30.7800+130.2807/+30.8000+130.2808/+30.8188+130.3000/ 南西 2 鹿児島県三島村 4630300 2026-08-03T09:00:00+09:00 2026-08-03T12:00:00+09:00 降灰 70 +30.8071+130.1800/+30.8146+130.2000/+30.8179+130.2200/+30.8193+130.2400/+30.8198+130.2600/+30.8200+130.2800/+30.8199+130.3000/+30.8162+130.3200/+30.8000+130.3362/+30.7800+130.3344/+30.7656+130.3200/+30.7601+130.3000/+30.7600+130.2914/+30.7486+130.2800/+30.7408+130.2600/+30.7401+130.2400/+30.7400+130.2385/+30.7245+130.2200/+30.7212+130.2000/+30.7200+130.1911/+30.7113+130.1800/+30.7037+130.1600/+30.7000+130.1482/+30.6934+130.1400/+30.6858+130.1200/+30.6822+130.1000/+30.6800+130.0923/+30.6724+130.0800/+30.6641+130.0600/+30.6600+130.0510/+30.6517+130.0400/+30.6473+130.0200/+30.6424+130.0000/+30.6400+129.9901/+30.6367+129.9800/+30.6304+129.9600/+30.6252+129.9400/+30.6210+129.9200/+30.6216+129.9000/+30.6235+129.8800/+30.6400+129.8692/+30.6564+129.8800/+30.6600+129.8821/+30.6800+129.8898/+30.6876+129.9000/+30.7000+129.9168/+30.7019+129.9200/+30.7167+129.9400/+30.7200+129.9450/+30.7297+129.9600/+30.7399+129.9800/+30.7400+129.9802/+30.7494+130.0000/+30.7561+130.0200/+30.7600+130.0267/+30.7697+130.0400/+30.7770+130.0600/+30.7793+130.0800/+30.7800+130.0832/+30.7889+130.1000/+30.7947+130.1200/+30.7975+130.1400/+30.7993+130.1600/+30.8000+130.1688/+30.8071+130.1800/ 西 40 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8071+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3170/+30.7630+130.3000/+30.7720+130.2800/+30.7800+130.2694/+30.8000+130.2709/+30.8071+130.2800/ 西 3 鹿児島県三島村 4630300 2026-08-03T12:00:00+09:00 2026-08-03T15:00:00+09:00 降灰 70 +30.8230+129.8000/+30.8250+129.8200/+30.8263+129.8400/+30.8282+129.8600/+30.8296+129.8800/+30.8298+129.9000/+30.8312+129.9200/+30.8340+129.9400/+30.8349+129.9600/+30.8351+129.9800/+30.8313+130.0000/+30.8310+130.0200/+30.8310+130.0400/+30.8289+130.0600/+30.8259+130.0800/+30.8200+130.0987/+30.8200+130.1000/+30.8195+130.1200/+30.8194+130.1400/+30.8194+130.1600/+30.8195+130.1800/+30.8197+130.2000/+30.8198+130.2200/+30.8199+130.2400/+30.8199+130.2600/+30.8200+130.2800/+30.8199+130.3000/+30.8075+130.3200/+30.8000+130.3275/+30.7820+130.3200/+30.7800+130.3200/+30.7601+130.3000/+30.7601+130.2800/+30.7601+130.2600/+30.7601+130.2400/+30.7600+130.2302/+30.7528+130.2200/+30.7467+130.2000/+30.7451+130.1800/+30.7440+130.1600/+30.7443+130.1400/+30.7437+130.1200/+30.7431+130.1000/+30.7429+130.0800/+30.7424+130.0600/+30.7421+130.0400/+30.7421+130.0200/+30.7432+130.0000/+30.7400+129.9880/+30.7346+129.9800/+30.7347+129.9600/+30.7346+129.9400/+30.7343+129.9200/+30.7347+129.9000/+30.7330+129.8800/+30.7337+129.8600/+30.7345+129.8400/+30.7344+129.8200/+30.7342+129.8000/+30.7363+129.7800/+30.7400+129.7702/+30.7501+129.7600/+30.7600+129.7487/+30.7800+129.7506/+30.8000+129.7522/+30.8045+129.7600/+30.8163+129.7800/+30.8200+129.7898/+30.8230+129.8000/ 西 50 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8116+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3186/+30.7614+130.3000/+30.7692+130.2800/+30.7800+130.2655/+30.8000+130.2654/+30.8116+130.2800/ 西 3 鹿児島県三島村 4630300 2026-08-03T15:00:00+09:00 2026-08-03T18:00:00+09:00 降灰 70 +30.8100+130.1800/+30.8147+130.2000/+30.8181+130.2200/+30.8195+130.2400/+30.8199+130.2600/+30.8199+130.2800/+30.8199+130.3000/+30.8000+130.3199/+30.7800+130.3199/+30.7601+130.3000/+30.7600+130.2800/+30.7600+130.2736/+30.7467+130.2600/+30.7410+130.2400/+30.7404+130.2200/+30.7403+130.2000/+30.7400+130.1863/+30.7343+130.1800/+30.7241+130.1600/+30.7221+130.1400/+30.7209+130.1200/+30.7200+130.1026/+30.7182+130.1000/+30.7089+130.0800/+30.7047+130.0600/+30.7026+130.0400/+30.7008+130.0200/+30.7000+130.0175/+30.6854+130.0000/+30.6830+129.9800/+30.6800+129.9646/+30.6783+129.9600/+30.6745+129.9400/+30.6726+129.9200/+30.6654+129.9000/+30.6624+129.8800/+30.6600+129.8649/+30.6593+129.8600/+30.6565+129.8400/+30.6548+129.8200/+30.6535+129.8000/+30.6512+129.7800/+30.6481+129.7600/+30.6473+129.7400/+30.6501+129.7200/+30.6546+129.7000/+30.6600+129.6880/+30.6800+129.6856/+30.7000+129.6843/+30.7070+129.7000/+30.7174+129.7200/+30.7200+129.7257/+30.7261+129.7400/+30.7340+129.7600/+30.7400+129.7764/+30.7415+129.7800/+30.7480+129.8000/+30.7546+129.8200/+30.7600+129.8396/+30.7602+129.8400/+30.7692+129.8600/+30.7753+129.8800/+30.7747+129.9000/+30.7772+129.9200/+30.7800+129.9370/+30.7812+129.9400/+30.7874+129.9600/+30.7914+129.9800/+30.7902+130.0000/+30.7932+130.0200/+30.7955+130.0400/+30.7965+130.0600/+30.7976+130.0800/+30.7985+130.1000/+30.7992+130.1200/+30.7997+130.1400/+30.8000+130.1600/+30.8000+130.1601/+30.8100+130.1800/ 西 60 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8121+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3186/+30.7614+130.3000/+30.7650+130.2800/+30.7800+130.2617/+30.8000+130.2669/+30.8121+130.2800/ 西 3 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 +30.8024+130.2400/+30.8195+130.2600/+30.8199+130.2800/+30.8199+130.3000/+30.8053+130.3200/+30.8000+130.3253/+30.7864+130.3200/+30.7800+130.3200/+30.7601+130.3000/+30.7600+130.2891/+30.7509+130.2800/+30.7405+130.2600/+30.7402+130.2400/+30.7400+130.2286/+30.7315+130.2200/+30.7221+130.2000/+30.7208+130.1800/+30.7200+130.1646/+30.7157+130.1600/+30.7046+130.1400/+30.7019+130.1200/+30.7000+130.1000/+30.6881+130.0800/+30.6834+130.0600/+30.6813+130.0400/+30.6800+130.0367/+30.6656+130.0200/+30.6635+130.0000/+30.6617+129.9800/+30.6600+129.9658/+30.6564+129.9600/+30.6481+129.9400/+30.6455+129.9200/+30.6417+129.9000/+30.6400+129.8885/+30.6359+129.8800/+30.6282+129.8600/+30.6229+129.8400/+30.6200+129.8271/+30.6184+129.8200/+30.6168+129.8000/+30.6150+129.7800/+30.6126+129.7600/+30.6108+129.7400/+30.6099+129.7200/+30.6079+129.7000/+30.6083+129.6800/+30.6127+129.6600/+30.6200+129.6575/+30.6400+129.6564/+30.6430+129.6600/+30.6600+129.6747/+30.6624+129.6800/+30.6699+129.7000/+30.6761+129.7200/+30.6800+129.7349/+30.6812+129.7400/+30.6860+129.7600/+30.6916+129.7800/+30.7000+129.7965/+30.7012+129.8000/+30.7077+129.8200/+30.7121+129.8400/+30.7172+129.8600/+30.7200+129.8720/+30.7245+129.8800/+30.7292+129.9000/+30.7366+129.9200/+30.7400+129.9330/+30.7425+129.9400/+30.7487+129.9600/+30.7530+129.9800/+30.7472+130.0000/+30.7536+130.0200/+30.7569+130.0400/+30.7589+130.0600/+30.7600+130.0703/+30.7671+130.0800/+30.7750+130.1000/+30.7782+130.1200/+30.7793+130.1400/+30.7800+130.1567/+30.7828+130.1600/+30.7974+130.1800/+30.7994+130.2000/+30.7998+130.2200/+30.8000+130.2376/+30.8024+130.2400/ +30.6071+129.6000/+30.6069+129.6200/+30.6062+129.6400/+30.6000+129.6528/+30.5988+129.6400/+30.5972+129.6200/+30.5956+129.6000/+30.6000+129.5830/+30.6071+129.6000/ 西 70 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8148+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3184/+30.7616+130.3000/+30.7656+130.2800/+30.7800+130.2615/+30.8000+130.2652/+30.8148+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 +30.8152+130.2400/+30.8197+130.2600/+30.8199+130.2800/+30.8199+130.3000/+30.8079+130.3200/+30.8000+130.3279/+30.7800+130.3200/+30.7601+130.3000/+30.7600+130.2800/+30.7600+130.2790/+30.7413+130.2600/+30.7403+130.2400/+30.7402+130.2200/+30.7400+130.2130/+30.7278+130.2000/+30.7221+130.1800/+30.7209+130.1600/+30.7200+130.1457/+30.7149+130.1400/+30.7055+130.1200/+30.7022+130.1000/+30.7008+130.0800/+30.7000+130.0741/+30.6899+130.0600/+30.6853+130.0400/+30.6800+130.0301/+30.6706+130.0200/+30.6674+130.0000/+30.6654+129.9800/+30.6629+129.9600/+30.6611+129.9400/+30.6600+129.9267/+30.6580+129.9200/+30.6479+129.9000/+30.6469+129.8800/+30.6441+129.8600/+30.6400+129.8406/+30.6397+129.8400/+30.6317+129.8200/+30.6265+129.8000/+30.6266+129.7800/+30.6268+129.7600/+30.6278+129.7400/+30.6301+129.7200/+30.6333+129.7000/+30.6379+129.6800/+30.6400+129.6739/+30.6499+129.6800/+30.6600+129.6845/+30.6649+129.7000/+30.6728+129.7200/+30.6800+129.7369/+30.6814+129.7400/+30.6905+129.7600/+30.7000+129.7771/+30.7013+129.7800/+30.7049+129.8000/+30.7110+129.8200/+30.7166+129.8400/+30.7200+129.8509/+30.7252+129.8600/+30.7328+129.8800/+30.7326+129.9000/+30.7377+129.9200/+30.7400+129.9265/+30.7458+129.9400/+30.7510+129.9600/+30.7543+129.9800/+30.7501+130.0000/+30.7556+130.0200/+30.7581+130.0400/+30.7596+130.0600/+30.7600+130.0639/+30.7706+130.0800/+30.7767+130.1000/+30.7788+130.1200/+30.7797+130.1400/+30.7800+130.1438/+30.7932+130.1600/+30.7986+130.1800/+30.7996+130.2000/+30.7999+130.2200/+30.8000+130.2242/+30.8152+130.2400/ 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+130.3161/+30.7639+130.3000/+30.7659+130.2800/+30.7800+130.2631/+30.8000+130.2656/+30.8144+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０９時から１２時までは火口から西方向、３日２１時から２４時までは火口から西方向に降灰が予想されます。 　３日６時から３日２４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０６時から０９時まで　南西　　　　　　４０ｋｍ　　２ｋｍ　　　　　 　０３日０９時から１２時まで　西　　　　　　　４０ｋｍ　　３ｋｍ　　　　　 　０３日１２時から１５時まで　西　　　　　　　５０ｋｍ　　３ｋｍ　　　　　 　０３日１５時から１８時まで　西　　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　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　　　　　 　 　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。