2026-09-17T14:00:00Z 通常 気象庁本庁 気象庁 2026-09-17T23:00:00+09:00 2026-09-18T00:00:00+09:00 2026-09-18T18:00:00+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、１８日０９時から１２時までは火口から北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 2026-09-18T00:00:00+09:00 2026-09-18T03:00:00+09:00 降灰 70 +30.8016+130.1600/+30.8115+130.1800/+30.8159+130.2000/+30.8184+130.2200/+30.8195+130.2400/+30.8198+130.2600/+30.8199+130.2800/+30.8200+130.3000/+30.8189+130.3200/+30.8000+130.3388/+30.7800+130.3373/+30.7627+130.3200/+30.7601+130.3000/+30.7600+130.2930/+30.7471+130.2800/+30.7414+130.2600/+30.7404+130.2400/+30.7400+130.2308/+30.7323+130.2200/+30.7261+130.2000/+30.7230+130.1800/+30.7223+130.1600/+30.7204+130.1400/+30.7200+130.1336/+30.7166+130.1200/+30.7117+130.1000/+30.7130+130.0800/+30.7080+130.0600/+30.7049+130.0400/+30.7042+130.0200/+30.7000+130.0090/+30.6919+130.0000/+30.6898+129.9800/+30.6878+129.9600/+30.6852+129.9400/+30.6817+129.9200/+30.6827+129.9000/+30.6809+129.8800/+30.6800+129.8667/+30.6792+129.8600/+30.6771+129.8400/+30.6773+129.8200/+30.6778+129.8000/+30.6800+129.7847/+30.6808+129.7800/+30.6841+129.7600/+30.6876+129.7400/+30.6911+129.7200/+30.6959+129.7000/+30.7000+129.6887/+30.7039+129.7000/+30.7106+129.7200/+30.7185+129.7400/+30.7200+129.7436/+30.7271+129.7600/+30.7350+129.7800/+30.7400+129.7858/+30.7448+129.8000/+30.7483+129.8200/+30.7518+129.8400/+30.7577+129.8600/+30.7600+129.8687/+30.7638+129.8800/+30.7672+129.9000/+30.7699+129.9200/+30.7722+129.9400/+30.7745+129.9600/+30.7768+129.9800/+30.7778+130.0000/+30.7799+130.0200/+30.7800+130.0226/+30.7835+130.0400/+30.7896+130.0600/+30.7939+130.0800/+30.7970+130.1000/+30.7984+130.1200/+30.7992+130.1400/+30.8000+130.1571/+30.8016+130.1600/ 西 60 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8147+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3156/+30.7644+130.3000/+30.7655+130.2800/+30.7800+130.2615/+30.8000+130.2624/+30.8147+130.2800/ 西 3 鹿児島県三島村 4630300 2026-09-18T03:00:00+09:00 2026-09-18T06:00:00+09:00 降灰 70 +31.0908+130.4200/+31.0933+130.4400/+31.0897+130.4600/+31.0800+130.4785/+31.0796+130.4800/+31.0717+130.5000/+31.0600+130.5124/+31.0468+130.5200/+31.0400+130.5262/+31.0200+130.5387/+31.0000+130.5393/+30.9800+130.5366/+30.9600+130.5310/+30.9400+130.5239/+30.9353+130.5200/+30.9200+130.5078/+30.9113+130.5000/+30.9000+130.4933/+30.8819+130.4800/+30.8800+130.4787/+30.8600+130.4656/+30.8547+130.4600/+30.8416+130.4400/+30.8400+130.4365/+30.8306+130.4200/+30.8220+130.4000/+30.8200+130.3952/+30.8123+130.3800/+30.8191+130.3600/+30.8063+130.3400/+30.8000+130.3400/+30.7800+130.3395/+30.7605+130.3200/+30.7601+130.3000/+30.7621+130.2800/+30.7750+130.2600/+30.7800+130.2538/+30.8000+130.2450/+30.8200+130.2463/+30.8400+130.2449/+30.8600+130.2483/+30.8800+130.2510/+30.9000+130.2441/+30.9200+130.2407/+30.9221+130.2400/+30.9400+130.2248/+30.9473+130.2200/+30.9600+130.2098/+30.9800+130.2052/+30.9955+130.2200/+30.9981+130.2400/+30.9951+130.2600/+30.9908+130.2800/+31.0000+130.2977/+31.0019+130.3000/+31.0185+130.3200/+31.0200+130.3237/+31.0266+130.3400/+31.0200+130.3599/+31.0200+130.3600/+31.0200+130.3601/+31.0362+130.3800/+31.0400+130.3816/+31.0600+130.3825/+31.0741+130.4000/+31.0800+130.4056/+31.0908+130.4200/ 北東 40 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8196+130.3000/+30.8179+130.3200/+30.8000+130.3352/+30.7848+130.3200/+30.7810+130.3000/+30.8000+130.2811/+30.8196+130.3000/ 北東 2 鹿児島県三島村 4630300 2026-09-18T06:00:00+09:00 2026-09-18T09:00:00+09:00 降灰 70 +31.0695+130.3200/+31.0600+130.3304/+31.0423+130.3400/+31.0400+130.3417/+31.0200+130.3593/+31.0191+130.3600/+31.0000+130.3723/+30.9863+130.3800/+30.9800+130.3833/+30.9600+130.3827/+30.9487+130.3800/+30.9400+130.3794/+30.9200+130.3778/+30.9000+130.3738/+30.8800+130.3632/+30.8761+130.3600/+30.8600+130.3563/+30.8400+130.3481/+30.8307+130.3400/+30.8200+130.3397/+30.8000+130.3399/+30.7800+130.3383/+30.7617+130.3200/+30.7605+130.3000/+30.7800+130.2805/+30.7803+130.2800/+30.8000+130.2603/+30.8019+130.2600/+30.8200+130.2419/+30.8240+130.2400/+30.8400+130.2239/+30.8449+130.2200/+30.8600+130.2042/+30.8643+130.2000/+30.8800+130.1835/+30.8827+130.1800/+30.9000+130.1609/+30.9012+130.1600/+30.9153+130.1400/+30.9200+130.1347/+30.9304+130.1200/+30.9400+130.1086/+30.9495+130.1000/+30.9600+130.0856/+30.9656+130.0800/+30.9800+130.0640/+30.9905+130.0600/+31.0000+130.0511/+31.0122+130.0400/+31.0200+130.0299/+31.0278+130.0400/+31.0304+130.0600/+31.0314+130.0800/+31.0320+130.1000/+31.0301+130.1200/+31.0203+130.1400/+31.0200+130.1403/+31.0124+130.1600/+31.0071+130.1800/+31.0000+130.1987/+30.9996+130.2000/+31.0000+130.2008/+31.0142+130.2200/+31.0200+130.2295/+31.0296+130.2400/+31.0400+130.2437/+31.0582+130.2600/+31.0488+130.2800/+31.0467+130.3000/+31.0600+130.3108/+31.0695+130.3200/ 北 40 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8200+130.3000/+30.8164+130.3200/+30.8000+130.3324/+30.7876+130.3200/+30.7812+130.3000/+30.8000+130.2810/+30.8200+130.3000/ 北東 2 鹿児島県三島村 4630300 2026-09-18T09:00:00+09:00 2026-09-18T12:00:00+09:00 降灰 70 +31.1279+130.3600/+31.1353+130.3800/+31.1283+130.4000/+31.1200+130.4028/+31.1000+130.4080/+31.0800+130.4115/+31.0600+130.4119/+31.0400+130.4060/+31.0200+130.4017/+31.0161+130.4000/+31.0000+130.3981/+30.9800+130.3949/+30.9600+130.3913/+30.9437+130.3800/+30.9400+130.3791/+30.9200+130.3767/+30.9000+130.3734/+30.8805+130.3600/+30.8800+130.3600/+30.8600+130.3594/+30.8400+130.3584/+30.8200+130.3400/+30.8000+130.3399/+30.7800+130.3384/+30.7616+130.3200/+30.7607+130.3000/+30.7800+130.2807/+30.7946+130.2800/+30.8000+130.2746/+30.8200+130.2616/+30.8400+130.2607/+30.8448+130.2600/+30.8600+130.2464/+30.8800+130.2401/+30.8803+130.2400/+30.9000+130.2244/+30.9092+130.2200/+30.9200+130.2093/+30.9360+130.2000/+30.9400+130.1970/+30.9600+130.1978/+30.9712+130.1800/+30.9800+130.1719/+31.0000+130.1664/+31.0200+130.1789/+31.0205+130.1800/+31.0339+130.2000/+31.0400+130.2052/+31.0507+130.2200/+31.0600+130.2311/+31.0673+130.2400/+31.0776+130.2600/+31.0773+130.2800/+31.0773+130.3000/+31.0800+130.3083/+31.0868+130.3200/+31.1000+130.3346/+31.1045+130.3400/+31.1200+130.3530/+31.1279+130.3600/ +31.0203+130.2200/+31.0200+130.2201/+31.0198+130.2200/+31.0200+130.2196/+31.0203+130.2200/ 北 40 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8198+130.3000/+30.8183+130.3200/+30.8000+130.3338/+30.7862+130.3200/+30.7812+130.3000/+30.8000+130.2812/+30.8198+130.3000/ 北東 2 鹿児島県三島村 4630300 2026-09-18T12:00:00+09:00 2026-09-18T15:00:00+09:00 降灰 70 +31.2076+130.1200/+31.2008+130.1400/+31.2000+130.1417/+31.1887+130.1600/+31.1800+130.1705/+31.1750+130.1800/+31.1687+130.2000/+31.1600+130.2068/+31.1400+130.2187/+31.1383+130.2200/+31.1200+130.2343/+31.1140+130.2400/+31.1000+130.2517/+31.0898+130.2600/+31.0800+130.2649/+31.0600+130.2741/+31.0532+130.2800/+31.0400+130.2894/+31.0200+130.2971/+31.0119+130.3000/+31.0000+130.3067/+30.9800+130.3145/+30.9600+130.3181/+30.9522+130.3200/+30.9400+130.3275/+30.9200+130.3339/+30.9000+130.3369/+30.8800+130.3384/+30.8600+130.3391/+30.8400+130.3396/+30.8200+130.3398/+30.8000+130.3399/+30.7800+130.3367/+30.7633+130.3200/+30.7610+130.3000/+30.7800+130.2810/+30.7807+130.2800/+30.8000+130.2607/+30.8182+130.2600/+30.8200+130.2582/+30.8400+130.2412/+30.8475+130.2400/+30.8600+130.2277/+30.8800+130.2215/+30.8860+130.2200/+30.9000+130.2072/+30.9200+130.2014/+30.9243+130.2000/+30.9400+130.1867/+30.9581+130.1800/+30.9600+130.1785/+30.9800+130.1676/+30.9960+130.1600/+31.0000+130.1567/+31.0200+130.1487/+31.0369+130.1400/+31.0400+130.1367/+31.0600+130.1291/+31.0800+130.1232/+31.0887+130.1200/+31.1000+130.1160/+31.1200+130.1100/+31.1400+130.1101/+31.1600+130.1104/+31.1800+130.1098/+31.2000+130.1091/+31.2076+130.1200/ 北 50 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8199+130.3000/+30.8000+130.3198/+30.7812+130.3000/+30.8000+130.2812/+30.8199+130.3000/ 北西 1 鹿児島県三島村 4630300 2026-09-18T15:00:00+09:00 2026-09-18T18:00:00+09:00 降灰 70 +31.1697+129.9400/+31.1672+129.9600/+31.1600+129.9724/+31.1561+129.9800/+31.1473+130.0000/+31.1400+130.0102/+31.1334+130.0200/+31.1200+130.0332/+31.1170+130.0400/+31.1095+130.0600/+31.1000+130.0748/+31.0949+130.0800/+31.0800+130.0889/+31.0716+130.1000/+31.0600+130.1164/+31.0577+130.1200/+31.0433+130.1400/+31.0400+130.1434/+31.0200+130.1522/+31.0118+130.1600/+31.0000+130.1706/+30.9906+130.1800/+30.9800+130.1909/+30.9714+130.2000/+30.9600+130.2108/+30.9512+130.2200/+30.9400+130.2314/+30.9276+130.2400/+30.9200+130.2467/+30.9000+130.2595/+30.8994+130.2600/+30.8800+130.2795/+30.8795+130.2800/+30.8800+130.2928/+30.8847+130.3000/+30.8800+130.3030/+30.8600+130.3085/+30.8400+130.3184/+30.8272+130.3200/+30.8200+130.3233/+30.8000+130.3392/+30.7800+130.3354/+30.7646+130.3200/+30.7606+130.3000/+30.7800+130.2806/+30.7801+130.2800/+30.8000+130.2601/+30.8002+130.2600/+30.8200+130.2402/+30.8206+130.2400/+30.8400+130.2205/+30.8410+130.2200/+30.8600+130.2012/+30.8622+130.2000/+30.8800+130.1818/+30.8821+130.1800/+30.9000+130.1622/+30.9035+130.1600/+30.9200+130.1440/+30.9256+130.1400/+30.9400+130.1250/+30.9452+130.1200/+30.9600+130.1056/+30.9663+130.1000/+30.9800+130.0846/+30.9843+130.0800/+30.9980+130.0600/+31.0000+130.0581/+31.0200+130.0440/+31.0240+130.0400/+31.0360+130.0200/+31.0400+130.0157/+31.0570+130.0000/+31.0600+129.9945/+31.0730+129.9800/+31.0800+129.9753/+31.0973+129.9600/+31.1000+129.9554/+31.1200+129.9412/+31.1238+129.9400/+31.1400+129.9240/+31.1600+129.9209/+31.1697+129.9400/ 北西 50 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8198+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.8000+130.2804/+30.8198+130.3000/ 北西 1 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、１８日０９時から１２時までは火口から北方向に降灰が予想されます。 　１８日０時から１８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 　１８日００時から０３時まで　西　　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　１８日０３時から０６時まで　北東　　　　　　４０ｋｍ　　２ｋｍ　　　　　 　１８日０６時から０９時まで　北　　　　　　　４０ｋｍ　　２ｋｍ　　　　　 　１８日０９時から１２時まで　北　　　　　　　４０ｋｍ　　２ｋｍ　　　　　 　１８日１２時から１５時まで　北　　　　　　　５０ｋｍ　　１ｋｍ　　　　　 　１８日１５時から１８時まで　北西　　　　　　５０ｋｍ　　１ｋｍ　　　　　 　 　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。