2026-08-24T14:00:00Z 通常 気象庁本庁 気象庁 2026-08-24T23:00:00+09:00 2026-08-25T00:00:00+09:00 2026-08-25T18:00:00+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、２５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 2026-08-25T00:00:00+09:00 2026-08-25T03:00:00+09:00 降灰 70 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西 70 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+130.3107/+30.7693+130.3000/+30.7714+130.2800/+30.7800+130.2676/+30.8000+130.2616/+30.8142+130.2800/ 西 3 鹿児島県三島村 4630300 2026-08-25T03:00:00+09:00 2026-08-25T06:00:00+09:00 降灰 70 +30.8224+129.6400/+30.8252+129.6600/+30.8274+129.6800/+30.8292+129.7000/+30.8307+129.7200/+30.8319+129.7400/+30.8333+129.7600/+30.8348+129.7800/+30.8325+129.8000/+30.8327+129.8200/+30.8329+129.8400/+30.8333+129.8600/+30.8335+129.8800/+30.8319+129.9000/+30.8320+129.9200/+30.8320+129.9400/+30.8320+129.9600/+30.8320+129.9800/+30.8200+129.9961/+30.8190+130.0000/+30.8184+130.0200/+30.8183+130.0400/+30.8185+130.0600/+30.8185+130.0800/+30.8186+130.1000/+30.8187+130.1200/+30.8189+130.1400/+30.8192+130.1600/+30.8194+130.1800/+30.8196+130.2000/+30.8197+130.2200/+30.8198+130.2400/+30.8199+130.2600/+30.8199+130.2800/+30.8199+130.3000/+30.8000+130.3199/+30.7800+130.3198/+30.7602+130.3000/+30.7601+130.2800/+30.7601+130.2600/+30.7600+130.2497/+30.7505+130.2400/+30.7426+130.2200/+30.7415+130.2000/+30.7412+130.1800/+30.7410+130.1600/+30.7409+130.1400/+30.7405+130.1200/+30.7400+130.1082/+30.7356+130.1000/+30.7304+130.0800/+30.7287+130.0600/+30.7261+130.0400/+30.7257+130.0200/+30.7241+130.0000/+30.7230+129.9800/+30.7229+129.9600/+30.7225+129.9400/+30.7218+129.9200/+30.7215+129.9000/+30.7216+129.8800/+30.7238+129.8600/+30.7266+129.8400/+30.7283+129.8200/+30.7303+129.8000/+30.7290+129.7800/+30.7328+129.7600/+30.7370+129.7400/+30.7400+129.7273/+30.7422+129.7200/+30.7490+129.7000/+30.7555+129.6800/+30.7600+129.6675/+30.7629+129.6600/+30.7701+129.6400/+30.7777+129.6200/+30.7800+129.6146/+30.7871+129.6000/+30.7934+129.5800/+30.7998+129.5600/+30.8000+129.5593/+30.8003+129.5600/+30.8074+129.5800/+30.8122+129.6000/+30.8184+129.6200/+30.8200+129.6270/+30.8224+129.6400/ 西 70 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8037+130.2600/+30.8158+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3078/+30.7722+130.3000/+30.7709+130.2800/+30.7800+130.2649/+30.7908+130.2600/+30.8000+130.2540/+30.8037+130.2600/ 西 4 鹿児島県三島村 4630300 2026-08-25T06:00:00+09:00 2026-08-25T09:00:00+09:00 降灰 70 +30.8413+129.6400/+30.8433+129.6600/+30.8451+129.6800/+30.8467+129.7000/+30.8470+129.7200/+30.8472+129.7400/+30.8472+129.7600/+30.8469+129.7800/+30.8454+129.8000/+30.8437+129.8200/+30.8418+129.8400/+30.8430+129.8600/+30.8441+129.8800/+30.8400+129.8851/+30.8378+129.9000/+30.8378+129.9200/+30.8376+129.9400/+30.8373+129.9600/+30.8371+129.9800/+30.8336+130.0000/+30.8329+130.0200/+30.8316+130.0400/+30.8309+130.0600/+30.8312+130.0800/+30.8273+130.1000/+30.8242+130.1200/+30.8200+130.1364/+30.8200+130.1400/+30.8199+130.1600/+30.8198+130.1800/+30.8198+130.2000/+30.8199+130.2200/+30.8199+130.2400/+30.8199+130.2600/+30.8199+130.2800/+30.8198+130.3000/+30.8000+130.3198/+30.7800+130.3197/+30.7603+130.3000/+30.7601+130.2800/+30.7601+130.2600/+30.7601+130.2400/+30.7601+130.2200/+30.7601+130.2000/+30.7600+130.1800/+30.7600+130.1786/+30.7507+130.1600/+30.7481+130.1400/+30.7467+130.1200/+30.7452+130.1000/+30.7455+130.0800/+30.7451+130.0600/+30.7442+130.0400/+30.7449+130.0200/+30.7445+130.0000/+30.7400+129.9857/+30.7353+129.9800/+30.7358+129.9600/+30.7373+129.9400/+30.7400+129.9225/+30.7402+129.9200/+30.7410+129.9000/+30.7400+129.8954/+30.7350+129.8800/+30.7367+129.8600/+30.7388+129.8400/+30.7400+129.8220/+30.7401+129.8200/+30.7417+129.8000/+30.7432+129.7800/+30.7458+129.7600/+30.7490+129.7400/+30.7528+129.7200/+30.7574+129.7000/+30.7600+129.6809/+30.7601+129.6800/+30.7625+129.6600/+30.7663+129.6400/+30.7716+129.6200/+30.7776+129.6000/+30.7800+129.5892/+30.7823+129.5800/+30.7878+129.5600/+30.7927+129.5400/+30.7968+129.5200/+30.8000+129.5062/+30.8088+129.5200/+30.8165+129.5400/+30.8200+129.5483/+30.8240+129.5600/+30.8310+129.5800/+30.8359+129.6000/+30.8391+129.6200/+30.8400+129.6273/+30.8413+129.6400/ 西 70 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8051+130.2600/+30.8168+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.7800+130.2816/+30.7784+130.2800/+30.7800+130.2755/+30.7893+130.2600/+30.8000+130.2514/+30.8051+130.2600/ 西 4 鹿児島県三島村 4630300 2026-08-25T09:00:00+09:00 2026-08-25T12:00:00+09:00 降灰 70 +30.8416+129.5400/+30.8447+129.5600/+30.8454+129.5800/+30.8460+129.6000/+30.8447+129.6200/+30.8435+129.6400/+30.8440+129.6600/+30.8458+129.6800/+30.8473+129.7000/+30.8497+129.7200/+30.8517+129.7400/+30.8521+129.7600/+30.8512+129.7800/+30.8477+129.8000/+30.8452+129.8200/+30.8422+129.8400/+30.8419+129.8600/+30.8416+129.8800/+30.8400+129.8817/+30.8373+129.9000/+30.8374+129.9200/+30.8371+129.9400/+30.8372+129.9600/+30.8374+129.9800/+30.8336+130.0000/+30.8328+130.0200/+30.8329+130.0400/+30.8316+130.0600/+30.8315+130.0800/+30.8310+130.1000/+30.8298+130.1200/+30.8282+130.1400/+30.8222+130.1600/+30.8200+130.1656/+30.8199+130.1800/+30.8199+130.2000/+30.8199+130.2200/+30.8199+130.2400/+30.8200+130.2600/+30.8199+130.2800/+30.8198+130.3000/+30.8000+130.3198/+30.7800+130.3196/+30.7604+130.3000/+30.7601+130.2800/+30.7601+130.2600/+30.7601+130.2400/+30.7602+130.2200/+30.7602+130.2000/+30.7603+130.1800/+30.7603+130.1600/+30.7603+130.1400/+30.7602+130.1200/+30.7600+130.1086/+30.7563+130.1000/+30.7542+130.0800/+30.7503+130.0600/+30.7475+130.0400/+30.7475+130.0200/+30.7468+130.0000/+30.7405+129.9800/+30.7407+129.9600/+30.7409+129.9400/+30.7414+129.9200/+30.7417+129.9000/+30.7400+129.8930/+30.7351+129.8800/+30.7374+129.8600/+30.7400+129.8432/+30.7406+129.8400/+30.7426+129.8200/+30.7450+129.8000/+30.7447+129.7800/+30.7460+129.7600/+30.7483+129.7400/+30.7519+129.7200/+30.7565+129.7000/+30.7600+129.6810/+30.7601+129.6800/+30.7632+129.6600/+30.7661+129.6400/+30.7683+129.6200/+30.7707+129.6000/+30.7749+129.5800/+30.7798+129.5600/+30.7800+129.5591/+30.7844+129.5400/+30.7883+129.5200/+30.7932+129.5000/+30.7967+129.4800/+30.8000+129.4624/+30.8105+129.4800/+30.8183+129.5000/+30.8200+129.5023/+30.8317+129.5200/+30.8400+129.5346/+30.8416+129.5400/ 西 80 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8081+130.2600/+30.8170+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.7815+130.2800/+30.7895+130.2600/+30.8000+130.2461/+30.8081+130.2600/ 西 4 鹿児島県三島村 4630300 2026-08-25T12:00:00+09:00 2026-08-25T15:00:00+09:00 降灰 70 +30.8412+129.6400/+30.8431+129.6600/+30.8452+129.6800/+30.8469+129.7000/+30.8499+129.7200/+30.8523+129.7400/+30.8527+129.7600/+30.8514+129.7800/+30.8483+129.8000/+30.8480+129.8200/+30.8478+129.8400/+30.8474+129.8600/+30.8471+129.8800/+30.8400+129.8906/+30.8389+129.9000/+30.8393+129.9200/+30.8391+129.9400/+30.8387+129.9600/+30.8382+129.9800/+30.8358+130.0000/+30.8354+130.0200/+30.8353+130.0400/+30.8357+130.0600/+30.8348+130.0800/+30.8342+130.1000/+30.8338+130.1200/+30.8320+130.1400/+30.8291+130.1600/+30.8238+130.1800/+30.8201+130.2000/+30.8200+130.2004/+30.8200+130.2200/+30.8200+130.2400/+30.8200+130.2481/+30.8247+130.2600/+30.8200+130.2671/+30.8200+130.2800/+30.8198+130.3000/+30.8000+130.3199/+30.7800+130.3196/+30.7604+130.3000/+30.7601+130.2800/+30.7601+130.2600/+30.7601+130.2400/+30.7601+130.2200/+30.7602+130.2000/+30.7602+130.1800/+30.7600+130.1600/+30.7600+130.1591/+30.7500+130.1400/+30.7476+130.1200/+30.7471+130.1000/+30.7463+130.0800/+30.7454+130.0600/+30.7453+130.0400/+30.7451+130.0200/+30.7452+130.0000/+30.7400+129.9829/+30.7374+129.9800/+30.7379+129.9600/+30.7377+129.9400/+30.7368+129.9200/+30.7399+129.9000/+30.7362+129.8800/+30.7387+129.8600/+30.7400+129.8516/+30.7421+129.8400/+30.7424+129.8200/+30.7427+129.8000/+30.7429+129.7800/+30.7445+129.7600/+30.7468+129.7400/+30.7501+129.7200/+30.7542+129.7000/+30.7573+129.6800/+30.7600+129.6643/+30.7606+129.6600/+30.7632+129.6400/+30.7656+129.6200/+30.7682+129.6000/+30.7724+129.5800/+30.7779+129.5600/+30.7800+129.5511/+30.7828+129.5400/+30.7854+129.5200/+30.7881+129.5000/+30.7918+129.4800/+30.7962+129.4600/+30.8000+129.4424/+30.8081+129.4600/+30.8152+129.4800/+30.8200+129.5000/+30.8200+129.5003/+30.8221+129.5200/+30.8238+129.5400/+30.8284+129.5600/+30.8339+129.5800/+30.8377+129.6000/+30.8395+129.6200/+30.8400+129.6268/+30.8412+129.6400/ 西 80 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8085+130.2600/+30.8175+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.7800+130.2819/+30.7781+130.2800/+30.7800+130.2758/+30.7869+130.2600/+30.8000+130.2460/+30.8085+130.2600/ 西 4 鹿児島県三島村 4630300 2026-08-25T15:00:00+09:00 2026-08-25T18:00:00+09:00 降灰 70 +30.8429+129.5800/+30.8468+129.6000/+30.8514+129.6200/+30.8550+129.6400/+30.8572+129.6600/+30.8583+129.6800/+30.8593+129.7000/+30.8585+129.7200/+30.8578+129.7400/+30.8578+129.7600/+30.8584+129.7800/+30.8583+129.8000/+30.8569+129.8200/+30.8553+129.8400/+30.8559+129.8600/+30.8565+129.8800/+30.8507+129.9000/+30.8514+129.9200/+30.8503+129.9400/+30.8481+129.9600/+30.8441+129.9800/+30.8400+129.9844/+30.8380+130.0000/+30.8374+130.0200/+30.8370+130.0400/+30.8368+130.0600/+30.8370+130.0800/+30.8368+130.1000/+30.8365+130.1200/+30.8368+130.1400/+30.8371+130.1600/+30.8359+130.1800/+30.8339+130.2000/+30.8287+130.2200/+30.8272+130.2400/+30.8326+130.2600/+30.8258+130.2800/+30.8200+130.2858/+30.8198+130.3000/+30.8000+130.3198/+30.7800+130.3196/+30.7605+130.3000/+30.7602+130.2800/+30.7601+130.2600/+30.7601+130.2400/+30.7602+130.2200/+30.7602+130.2000/+30.7601+130.1800/+30.7600+130.1665/+30.7563+130.1600/+30.7504+130.1400/+30.7466+130.1200/+30.7464+130.1000/+30.7454+130.0800/+30.7452+130.0600/+30.7454+130.0400/+30.7440+130.0200/+30.7442+130.0000/+30.7400+129.9850/+30.7357+129.9800/+30.7361+129.9600/+30.7375+129.9400/+30.7400+129.9229/+30.7403+129.9200/+30.7405+129.9000/+30.7400+129.8966/+30.7363+129.8800/+30.7382+129.8600/+30.7400+129.8433/+30.7404+129.8400/+30.7423+129.8200/+30.7449+129.8000/+30.7461+129.7800/+30.7493+129.7600/+30.7520+129.7400/+30.7536+129.7200/+30.7555+129.7000/+30.7600+129.6811/+30.7602+129.6800/+30.7646+129.6600/+30.7694+129.6400/+30.7748+129.6200/+30.7800+129.6047/+30.7818+129.6000/+30.7865+129.5800/+30.7923+129.5600/+30.7970+129.5400/+30.7994+129.5200/+30.8000+129.5152/+30.8058+129.5200/+30.8187+129.5400/+30.8200+129.5411/+30.8341+129.5600/+30.8400+129.5671/+30.8429+129.5800/ 西 70 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8074+130.2600/+30.8173+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.7803+130.2800/+30.7888+130.2600/+30.8000+130.2460/+30.8074+130.2600/ 西 4 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、２５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。 　２５日０時から２５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 　２５日００時から０３時まで　西　　　　　　　７０ｋｍ　　３ｋｍ　　　　　 　２５日０３時から０６時まで　西　　　　　　　７０ｋｍ　　４ｋｍ　　　　　 　２５日０６時から０９時まで　西　　　　　　　７０ｋｍ　　４ｋｍ　　　　　 　２５日０９時から１２時まで　西　　　　　　　８０ｋｍ　　４ｋｍ　　　　　 　２５日１２時から１５時まで　西　　　　　　　８０ｋｍ　　４ｋｍ　　　　　 　２５日１５時から１８時まで　西　　　　　　　７０ｋｍ　　４ｋｍ　　　　　 　 　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。