2026-09-16T23:00:00Z 通常 気象庁本庁 気象庁 2026-09-17T08:00:00+09:00 2026-09-17T09:00:00+09:00 2026-09-18T03:00:00+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、１７日０９時から１２時までは火口から西方向、１７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 2026-09-17T09:00:00+09:00 2026-09-17T12:00:00+09:00 降灰 70 +30.8138+130.2200/+30.8189+130.2400/+30.8198+130.2600/+30.8199+130.2800/+30.8199+130.3000/+30.8175+130.3200/+30.8000+130.3375/+30.7800+130.3358/+30.7642+130.3200/+30.7601+130.3000/+30.7600+130.2800/+30.7600+130.2723/+30.7481+130.2600/+30.7410+130.2400/+30.7405+130.2200/+30.7404+130.2000/+30.7401+130.1800/+30.7400+130.1760/+30.7281+130.1600/+30.7235+130.1400/+30.7227+130.1200/+30.7218+130.1000/+30.7210+130.0800/+30.7200+130.0638/+30.7180+130.0600/+30.7116+130.0400/+30.7099+130.0200/+30.7001+130.0000/+30.7000+129.9984/+30.6985+129.9800/+30.6979+129.9600/+30.6996+129.9400/+30.7000+129.9384/+30.7030+129.9200/+30.7006+129.9000/+30.7032+129.8800/+30.7072+129.8600/+30.7131+129.8400/+30.7200+129.8256/+30.7400+129.8274/+30.7600+129.8294/+30.7651+129.8400/+30.7720+129.8600/+30.7767+129.8800/+30.7761+129.9000/+30.7786+129.9200/+30.7800+129.9319/+30.7820+129.9400/+30.7860+129.9600/+30.7891+129.9800/+30.7867+130.0000/+30.7865+130.0200/+30.7906+130.0400/+30.7932+130.0600/+30.7941+130.0800/+30.7959+130.1000/+30.7974+130.1200/+30.7985+130.1400/+30.7993+130.1600/+30.7997+130.1800/+30.8000+130.2000/+30.8000+130.2011/+30.8138+130.2200/ 西 50 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8049+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3135/+30.7665+130.3000/+30.7749+130.2800/+30.7800+130.2738/+30.8000+130.2744/+30.8049+130.2800/ 西 3 鹿児島県三島村 4630300 2026-09-17T12:00:00+09:00 2026-09-17T15:00:00+09:00 降灰 70 +30.8124+130.2200/+30.8192+130.2400/+30.8198+130.2600/+30.8199+130.2800/+30.8199+130.3000/+30.8144+130.3200/+30.8000+130.3344/+30.7800+130.3310/+30.7690+130.3200/+30.7601+130.3000/+30.7600+130.2800/+30.7600+130.2736/+30.7521+130.2600/+30.7413+130.2400/+30.7405+130.2200/+30.7404+130.2000/+30.7403+130.1800/+30.7400+130.1699/+30.7321+130.1600/+30.7243+130.1400/+30.7223+130.1200/+30.7215+130.1000/+30.7200+130.0800/+30.7200+130.0799/+30.7105+130.0600/+30.7057+130.0400/+30.7031+130.0200/+30.7000+130.0121/+30.6898+130.0000/+30.6879+129.9800/+30.6857+129.9600/+30.6837+129.9400/+30.6821+129.9200/+30.6823+129.9000/+30.6814+129.8800/+30.6800+129.8637/+30.6793+129.8600/+30.6759+129.8400/+30.6738+129.8200/+30.6724+129.8000/+30.6754+129.7800/+30.6780+129.7600/+30.6800+129.7521/+30.6839+129.7400/+30.6967+129.7200/+30.7000+129.7163/+30.7028+129.7200/+30.7158+129.7400/+30.7200+129.7480/+30.7259+129.7600/+30.7347+129.7800/+30.7400+129.7862/+30.7456+129.8000/+30.7503+129.8200/+30.7542+129.8400/+30.7600+129.8575/+30.7613+129.8600/+30.7693+129.8800/+30.7698+129.9000/+30.7729+129.9200/+30.7758+129.9400/+30.7782+129.9600/+30.7800+129.9764/+30.7816+129.9800/+30.7800+129.9824/+30.7784+130.0000/+30.7787+130.0200/+30.7796+130.0400/+30.7800+130.0476/+30.7846+130.0600/+30.7899+130.0800/+30.7943+130.1000/+30.7975+130.1200/+30.7986+130.1400/+30.7993+130.1600/+30.7996+130.1800/+30.7998+130.2000/+30.8000+130.2063/+30.8124+130.2200/ 西 60 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8111+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3143/+30.7656+130.3000/+30.7692+130.2800/+30.7800+130.2669/+30.8000+130.2671/+30.8111+130.2800/ 西 3 鹿児島県三島村 4630300 2026-09-17T15:00:00+09:00 2026-09-17T18:00:00+09:00 降灰 70 +30.8166+130.2400/+30.8197+130.2600/+30.8199+130.2800/+30.8199+130.3000/+30.8056+130.3200/+30.8000+130.3256/+30.7867+130.3200/+30.7800+130.3200/+30.7601+130.3000/+30.7600+130.2800/+30.7600+130.2779/+30.7422+130.2600/+30.7403+130.2400/+30.7402+130.2200/+30.7401+130.2000/+30.7400+130.1980/+30.7244+130.1800/+30.7217+130.1600/+30.7208+130.1400/+30.7204+130.1200/+30.7200+130.1109/+30.7120+130.1000/+30.7054+130.0800/+30.7027+130.0600/+30.7012+130.0400/+30.7000+130.0217/+30.6987+130.0200/+30.6824+130.0000/+30.6804+129.9800/+30.6800+129.9754/+30.6764+129.9600/+30.6729+129.9400/+30.6702+129.9200/+30.6624+129.9000/+30.6603+129.8800/+30.6600+129.8759/+30.6587+129.8600/+30.6572+129.8400/+30.6564+129.8200/+30.6583+129.8000/+30.6587+129.7800/+30.6591+129.7600/+30.6600+129.7497/+30.6608+129.7400/+30.6643+129.7200/+30.6699+129.7000/+30.6796+129.6800/+30.6800+129.6794/+30.6956+129.6600/+30.7000+129.6554/+30.7020+129.6600/+30.7106+129.6800/+30.7173+129.7000/+30.7200+129.7083/+30.7233+129.7200/+30.7278+129.7400/+30.7321+129.7600/+30.7363+129.7800/+30.7400+129.7892/+30.7432+129.8000/+30.7468+129.8200/+30.7493+129.8400/+30.7527+129.8600/+30.7551+129.8800/+30.7582+129.9000/+30.7600+129.9172/+30.7605+129.9200/+30.7661+129.9400/+30.7704+129.9600/+30.7733+129.9800/+30.7682+130.0000/+30.7713+130.0200/+30.7756+130.0400/+30.7776+130.0600/+30.7786+130.0800/+30.7793+130.1000/+30.7800+130.1142/+30.7842+130.1200/+30.7945+130.1400/+30.7982+130.1600/+30.7993+130.1800/+30.7997+130.2000/+30.7999+130.2200/+30.8000+130.2225/+30.8166+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+130.3164/+30.7635+130.3000/+30.7660+130.2800/+30.7800+130.2622/+30.8000+130.2627/+30.8144+130.2800/ 西 3 鹿児島県三島村 4630300 2026-09-17T18:00:00+09:00 2026-09-17T21:00:00+09:00 降灰 70 +30.8043+129.9800/+30.8000+129.9843/+30.7943+130.0000/+30.7964+130.0200/+30.7972+130.0400/+30.7986+130.0600/+30.7989+130.0800/+30.7996+130.1000/+30.8000+130.1135/+30.8040+130.1200/+30.8120+130.1400/+30.8174+130.1600/+30.8190+130.1800/+30.8200+130.2000/+30.8200+130.2200/+30.8199+130.2400/+30.8199+130.2600/+30.8199+130.2800/+30.8199+130.3000/+30.8129+130.3200/+30.8000+130.3329/+30.7800+130.3267/+30.7733+130.3200/+30.7602+130.3000/+30.7601+130.2800/+30.7600+130.2600/+30.7600+130.2583/+30.7425+130.2400/+30.7409+130.2200/+30.7406+130.2000/+30.7405+130.1800/+30.7402+130.1600/+30.7400+130.1548/+30.7293+130.1400/+30.7245+130.1200/+30.7228+130.1000/+30.7219+130.0800/+30.7208+130.0600/+30.7200+130.0519/+30.7131+130.0400/+30.7128+130.0200/+30.7000+130.0011/+30.6989+130.0000/+30.6960+129.9800/+30.6940+129.9600/+30.6931+129.9400/+30.6930+129.9200/+30.6886+129.9000/+30.6875+129.8800/+30.6879+129.8600/+30.6885+129.8400/+30.6885+129.8200/+30.6885+129.8000/+30.6831+129.7800/+30.6847+129.7600/+30.6863+129.7400/+30.6877+129.7200/+30.6893+129.7000/+30.6928+129.6800/+30.6969+129.6600/+30.6993+129.6400/+30.6995+129.6200/+30.6996+129.6000/+30.7000+129.5971/+30.7023+129.6000/+30.7090+129.6200/+30.7200+129.6253/+30.7400+129.6277/+30.7457+129.6400/+30.7575+129.6600/+30.7600+129.6636/+30.7643+129.6800/+30.7686+129.7000/+30.7729+129.7200/+30.7763+129.7400/+30.7789+129.7600/+30.7800+129.7703/+30.7809+129.7800/+30.7816+129.8000/+30.7851+129.8200/+30.7878+129.8400/+30.7903+129.8600/+30.7922+129.8800/+30.7926+129.9000/+30.7946+129.9200/+30.7969+129.9400/+30.7996+129.9600/+30.8000+129.9622/+30.8043+129.9800/ 西 70 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8150+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3145/+30.7655+130.3000/+30.7651+130.2800/+30.7800+130.2611/+30.8000+130.2607/+30.8150+130.2800/ 西 3 鹿児島県三島村 4630300 2026-09-17T21:00:00+09:00 2026-09-18T00:00:00+09:00 降灰 70 +30.9040+129.8800/+30.9115+129.9000/+30.9173+129.9200/+30.9179+129.9400/+30.9178+129.9600/+30.9174+129.9800/+30.9166+130.0000/+30.9116+130.0200/+30.9028+130.0400/+30.9000+130.0443/+30.8983+130.0600/+30.8970+130.0800/+30.8893+130.1000/+30.8800+130.1190/+30.8799+130.1200/+30.8753+130.1400/+30.8666+130.1600/+30.8615+130.1800/+30.8600+130.1819/+30.8566+130.2000/+30.8419+130.2200/+30.8400+130.2222/+30.8397+130.2400/+30.8396+130.2600/+30.8376+130.2800/+30.8200+130.2977/+30.8200+130.3000/+30.8162+130.3200/+30.8000+130.3362/+30.7800+130.3316/+30.7684+130.3200/+30.7601+130.3000/+30.7601+130.2800/+30.7605+130.2600/+30.7611+130.2400/+30.7618+130.2200/+30.7629+130.2000/+30.7637+130.1800/+30.7649+130.1600/+30.7659+130.1400/+30.7673+130.1200/+30.7714+130.1000/+30.7734+130.0800/+30.7784+130.0600/+30.7773+130.0400/+30.7800+130.0323/+30.7831+130.0200/+30.7872+130.0000/+30.7908+129.9800/+30.7960+129.9600/+30.8000+129.9485/+30.8041+129.9400/+30.8144+129.9200/+30.8200+129.9023/+30.8209+129.9000/+30.8316+129.8800/+30.8400+129.8613/+30.8433+129.8600/+30.8600+129.8549/+30.8800+129.8506/+30.8902+129.8600/+30.9000+129.8729/+30.9040+129.8800/ 西 40 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8107+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.7887+130.2800/+30.8000+130.2666/+30.8107+130.2800/ 北西 3 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 +30.9677+130.1000/+30.9600+130.1108/+30.9502+130.1200/+30.9400+130.1268/+30.9300+130.1400/+30.9200+130.1512/+30.9104+130.1400/+30.9200+130.1265/+30.9296+130.1200/+30.9400+130.1001/+30.9401+130.1000/+30.9600+130.0838/+30.9677+130.1000/ +30.9498+129.8400/+30.9500+129.8600/+30.9500+129.8800/+30.9463+129.9000/+30.9436+129.9200/+30.9400+129.9295/+30.9364+129.9400/+30.9315+129.9600/+30.9274+129.9800/+30.9238+130.0000/+30.9200+130.0174/+30.9196+130.0200/+30.9074+130.0400/+30.9000+130.0546/+30.8991+130.0600/+30.8961+130.0800/+30.8905+130.1000/+30.8810+130.1200/+30.8800+130.1209/+30.8776+130.1400/+30.8762+130.1600/+30.8784+130.1800/+30.8800+130.1841/+30.8830+130.1800/+30.8950+130.1600/+30.9000+130.1526/+30.9088+130.1600/+30.9095+130.1800/+30.9000+130.1971/+30.8961+130.2000/+30.8800+130.2168/+30.8790+130.2200/+30.8636+130.2400/+30.8600+130.2448/+30.8525+130.2600/+30.8400+130.2724/+30.8396+130.2800/+30.8256+130.3000/+30.8200+130.3055/+30.8171+130.3200/+30.8000+130.3371/+30.7800+130.3332/+30.7668+130.3200/+30.7601+130.3000/+30.7602+130.2800/+30.7625+130.2600/+30.7800+130.2414/+30.7801+130.2400/+30.7803+130.2200/+30.7809+130.2000/+30.7822+130.1800/+30.7867+130.1600/+30.8000+130.1400/+30.8014+130.1200/+30.8039+130.1000/+30.8103+130.0800/+30.8200+130.0607/+30.8201+130.0600/+30.8233+130.0400/+30.8273+130.0200/+30.8400+130.0033/+30.8418+130.0000/+30.8446+129.9800/+30.8484+129.9600/+30.8560+129.9400/+30.8600+129.9339/+30.8712+129.9200/+30.8792+129.9000/+30.8800+129.8985/+30.8911+129.8800/+30.9000+129.8616/+30.9009+129.8600/+30.9132+129.8400/+30.9200+129.8267/+30.9400+129.8295/+30.9498+129.8400/ 西 50 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8053+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.7955+130.2800/+30.8000+130.2746/+30.8053+130.2800/ 北西 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、１７日０９時から１２時までは火口から西方向、１７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。 　１７日９時から１８日３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 　１７日０９時から１２時まで　西　　　　　　　５０ｋｍ　　３ｋｍ　　　　　 　１７日１２時から１５時まで　西　　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　１７日１５時から１８時まで　西　　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　１７日１８時から２１時まで　西　　　　　　　７０ｋｍ　　３ｋｍ　　　　　 　１７日２１時から２４時まで　西　　　　　　　４０ｋｍ　　３ｋｍ　　　　　 　１８日００時から０３時まで　西　　　　　　　５０ｋｍ　　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。