2026-09-17T08:00:00Z 通常 気象庁本庁 気象庁 2026-09-17T17:00:00+09:00 2026-09-17T18:00:00+09:00 2026-09-18T12:00:00+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２１時から２４時までは火口から西方向、１８日０９時から１２時までは火口から北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 2026-09-17T18:00:00+09:00 2026-09-17T21:00:00+09:00 降灰 70 +30.8191+130.2600/+30.8199+130.2800/+30.8198+130.3000/+30.8000+130.3199/+30.7800+130.3199/+30.7601+130.3000/+30.7600+130.2976/+30.7424+130.2800/+30.7402+130.2600/+30.7400+130.2400/+30.7400+130.2391/+30.7224+130.2200/+30.7207+130.2000/+30.7200+130.1863/+30.7142+130.1800/+30.7039+130.1600/+30.7016+130.1400/+30.7000+130.1264/+30.6950+130.1200/+30.6873+130.1000/+30.6849+130.0800/+30.6824+130.0600/+30.6800+130.0449/+30.6769+130.0400/+30.6655+130.0200/+30.6640+130.0000/+30.6631+129.9800/+30.6614+129.9600/+30.6600+129.9412/+30.6597+129.9400/+30.6572+129.9200/+30.6486+129.9000/+30.6475+129.8800/+30.6476+129.8600/+30.6476+129.8400/+30.6474+129.8200/+30.6437+129.8000/+30.6460+129.7800/+30.6490+129.7600/+30.6524+129.7400/+30.6557+129.7200/+30.6595+129.7000/+30.6595+129.6800/+30.6594+129.6600/+30.6600+129.6570/+30.6676+129.6400/+30.6800+129.6289/+30.6928+129.6200/+30.7000+129.6158/+30.7017+129.6200/+30.7086+129.6400/+30.7134+129.6600/+30.7171+129.6800/+30.7200+129.6969/+30.7205+129.7000/+30.7233+129.7200/+30.7257+129.7400/+30.7294+129.7600/+30.7338+129.7800/+30.7400+129.7995/+30.7401+129.8000/+30.7434+129.8200/+30.7459+129.8400/+30.7483+129.8600/+30.7501+129.8800/+30.7507+129.9000/+30.7531+129.9200/+30.7567+129.9400/+30.7600+129.9583/+30.7605+129.9600/+30.7658+129.9800/+30.7600+129.9887/+30.7579+130.0000/+30.7598+130.0200/+30.7600+130.0245/+30.7638+130.0400/+30.7708+130.0600/+30.7759+130.0800/+30.7778+130.1000/+30.7790+130.1200/+30.7799+130.1400/+30.7800+130.1416/+30.7932+130.1600/+30.7977+130.1800/+30.7993+130.2000/+30.7998+130.2200/+30.8000+130.2400/+30.8000+130.2401/+30.8191+130.2600/ 西 70 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8157+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3184/+30.7616+130.3000/+30.7646+130.2800/+30.7780+130.2600/+30.7800+130.2571/+30.7872+130.2600/+30.8000+130.2609/+30.8157+130.2800/ 西 5 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 +30.8143+130.2000/+30.8180+130.2200/+30.8193+130.2400/+30.8197+130.2600/+30.8199+130.2800/+30.8198+130.3000/+30.8133+130.3200/+30.8000+130.3333/+30.7800+130.3276/+30.7724+130.3200/+30.7602+130.3000/+30.7600+130.2977/+30.7423+130.2800/+30.7403+130.2600/+30.7400+130.2502/+30.7299+130.2400/+30.7213+130.2200/+30.7201+130.2000/+30.7200+130.1994/+30.7040+130.1800/+30.7012+130.1600/+30.7000+130.1523/+30.6898+130.1400/+30.6834+130.1200/+30.6800+130.1039/+30.6769+130.1000/+30.6674+130.0800/+30.6631+130.0600/+30.6600+130.0503/+30.6489+130.0400/+30.6431+130.0200/+30.6400+130.0100/+30.6356+130.0000/+30.6265+129.9800/+30.6236+129.9600/+30.6205+129.9400/+30.6200+129.9382/+30.6138+129.9200/+30.6110+129.9000/+30.6079+129.8800/+30.6042+129.8600/+30.6000+129.8416/+30.5994+129.8400/+30.6000+129.8248/+30.6002+129.8200/+30.6000+129.8163/+30.5989+129.8000/+30.6000+129.7822/+30.6001+129.7800/+30.6015+129.7600/+30.6044+129.7400/+30.6097+129.7200/+30.6184+129.7000/+30.6200+129.6936/+30.6242+129.6800/+30.6339+129.6600/+30.6400+129.6519/+30.6476+129.6600/+30.6600+129.6716/+30.6626+129.6800/+30.6685+129.7000/+30.6800+129.7188/+30.6807+129.7200/+30.6927+129.7400/+30.7000+129.7544/+30.7021+129.7600/+30.7075+129.7800/+30.7116+129.8000/+30.7165+129.8200/+30.7198+129.8400/+30.7200+129.8405/+30.7304+129.8600/+30.7372+129.8800/+30.7389+129.9000/+30.7400+129.9056/+30.7434+129.9200/+30.7525+129.9400/+30.7593+129.9600/+30.7600+129.9625/+30.7651+129.9800/+30.7660+130.0000/+30.7703+130.0200/+30.7757+130.0400/+30.7786+130.0600/+30.7797+130.0800/+30.7800+130.0821/+30.7895+130.1000/+30.7944+130.1200/+30.7979+130.1400/+30.7990+130.1600/+30.7999+130.1800/+30.8000+130.1815/+30.8143+130.2000/ 西 60 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8010+130.2600/+30.8164+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3181/+30.7619+130.3000/+30.7642+130.2800/+30.7744+130.2600/+30.7800+130.2517/+30.8000+130.2585/+30.8010+130.2600/ 西 5 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 +30.9292+130.0000/+30.9283+130.0200/+30.9306+130.0400/+30.9203+130.0600/+30.9200+130.0607/+30.9133+130.0800/+30.9083+130.1000/+30.9000+130.1132/+30.8969+130.1200/+30.8922+130.1400/+30.8800+130.1600/+30.8800+130.1601/+30.8737+130.1800/+30.8616+130.2000/+30.8600+130.2019/+30.8553+130.2200/+30.8475+130.2400/+30.8400+130.2483/+30.8380+130.2600/+30.8331+130.2800/+30.8200+130.2938/+30.8199+130.3000/+30.8157+130.3200/+30.8000+130.3357/+30.7800+130.3317/+30.7683+130.3200/+30.7602+130.3000/+30.7601+130.2800/+30.7602+130.2600/+30.7603+130.2400/+30.7605+130.2200/+30.7607+130.2000/+30.7609+130.1800/+30.7612+130.1600/+30.7614+130.1400/+30.7617+130.1200/+30.7613+130.1000/+30.7624+130.0800/+30.7634+130.0600/+30.7633+130.0400/+30.7632+130.0200/+30.7644+130.0000/+30.7600+129.9803/+30.7598+129.9800/+30.7600+129.9790/+30.7628+129.9600/+30.7657+129.9400/+30.7676+129.9200/+30.7678+129.9000/+30.7714+129.8800/+30.7752+129.8600/+30.7800+129.8417/+30.7805+129.8400/+30.7825+129.8200/+30.7854+129.8000/+30.7913+129.7800/+30.7986+129.7600/+30.8000+129.7561/+30.8132+129.7400/+30.8200+129.7304/+30.8275+129.7200/+30.8400+129.7026/+30.8557+129.7200/+30.8600+129.7261/+30.8627+129.7400/+30.8655+129.7600/+30.8676+129.7800/+30.8654+129.8000/+30.8669+129.8200/+30.8679+129.8400/+30.8701+129.8600/+30.8718+129.8800/+30.8731+129.9000/+30.8732+129.9200/+30.8737+129.9400/+30.8739+129.9600/+30.8740+129.9800/+30.8749+130.0000/+30.8600+130.0120/+30.8565+130.0200/+30.8560+130.0400/+30.8558+130.0600/+30.8600+130.0796/+30.8734+130.0600/+30.8800+130.0527/+30.8876+130.0400/+30.8875+130.0200/+30.8956+130.0000/+30.9000+129.9940/+30.9200+129.9872/+30.9292+130.0000/ +30.8662+130.1000/+30.8600+130.1117/+30.8534+130.1000/+30.8600+130.0806/+30.8662+130.1000/ 西 60 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/+30.7812+130.3000/+30.7800+130.2861/+30.7739+130.2800/+30.7800+130.2674/+30.8000+130.2610/+30.8150+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 +31.0420+130.0000/+31.0400+130.0066/+31.0352+130.0200/+31.0287+130.0400/+31.0200+130.0556/+31.0157+130.0600/+31.0029+130.0800/+31.0000+130.0835/+30.9891+130.1000/+30.9844+130.1200/+30.9800+130.1257/+30.9731+130.1400/+30.9600+130.1580/+30.9588+130.1600/+30.9425+130.1800/+30.9400+130.1825/+30.9200+130.1970/+30.9155+130.2000/+30.9000+130.2159/+30.8921+130.2200/+30.8800+130.2286/+30.8738+130.2400/+30.8600+130.2548/+30.8583+130.2600/+30.8400+130.2796/+30.8400+130.2800/+30.8349+130.3000/+30.8200+130.3149/+30.8175+130.3200/+30.8000+130.3375/+30.7800+130.3341/+30.7659+130.3200/+30.7602+130.3000/+30.7603+130.2800/+30.7636+130.2600/+30.7800+130.2427/+30.7801+130.2400/+30.7804+130.2200/+30.7811+130.2000/+30.7826+130.1800/+30.7860+130.1600/+30.7944+130.1400/+30.8000+130.1314/+30.8014+130.1200/+30.8041+130.1000/+30.8078+130.0800/+30.8132+130.0600/+30.8200+130.0483/+30.8226+130.0400/+30.8268+130.0200/+30.8328+130.0000/+30.8399+129.9800/+30.8400+129.9799/+30.8464+129.9600/+30.8533+129.9400/+30.8600+129.9247/+30.8634+129.9200/+30.8747+129.9000/+30.8800+129.8892/+30.8882+129.8800/+30.9000+129.8615/+30.9009+129.8600/+30.9117+129.8400/+30.9200+129.8209/+30.9399+129.8400/+30.9400+129.8404/+30.9436+129.8600/+30.9450+129.8800/+30.9492+129.9000/+30.9520+129.9200/+30.9482+129.9400/+30.9444+129.9600/+30.9405+129.9800/+30.9400+129.9833/+30.9381+130.0000/+30.9372+130.0200/+30.9368+130.0400/+30.9200+130.0538/+30.9184+130.0600/+30.9158+130.0800/+30.9059+130.1000/+30.9200+130.1139/+30.9400+130.1003/+30.9404+130.1000/+30.9475+130.0800/+30.9566+130.0600/+30.9600+130.0545/+30.9753+130.0400/+30.9800+130.0359/+31.0000+130.0220/+31.0022+130.0200/+31.0179+130.0000/+31.0200+129.9979/+31.0400+129.9953/+31.0420+130.0000/ +30.9043+130.1200/+30.9000+130.1268/+30.8997+130.1200/+30.9000+130.1155/+30.9043+130.1200/ 北西 50 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8093+130.2800/+30.8189+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.7920+130.2800/+30.8000+130.2700/+30.8093+130.2800/ 北西 3 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 +31.0294+130.0200/+31.0343+130.0400/+31.0215+130.0600/+31.0200+130.0617/+31.0076+130.0800/+31.0000+130.0926/+30.9971+130.1000/+30.9809+130.1200/+30.9800+130.1214/+30.9668+130.1400/+30.9600+130.1494/+30.9544+130.1600/+30.9400+130.1717/+30.9343+130.1800/+30.9200+130.1979/+30.9186+130.2000/+30.9034+130.2200/+30.9000+130.2232/+30.8815+130.2400/+30.8800+130.2415/+30.8600+130.2594/+30.8597+130.2600/+30.8445+130.2800/+30.8400+130.2845/+30.8343+130.3000/+30.8200+130.3142/+30.8188+130.3200/+30.8000+130.3388/+30.7800+130.3371/+30.7629+130.3200/+30.7601+130.3000/+30.7602+130.2800/+30.7631+130.2600/+30.7800+130.2418/+30.7801+130.2400/+30.7808+130.2200/+30.7831+130.2000/+30.7916+130.1800/+30.8000+130.1684/+30.8014+130.1600/+30.8076+130.1400/+30.8200+130.1202/+30.8201+130.1200/+30.8258+130.1000/+30.8400+130.0816/+30.8408+130.0800/+30.8504+130.0600/+30.8600+130.0462/+30.8629+130.0400/+30.8715+130.0200/+30.8800+130.0000/+30.9000+129.9800/+30.9000+129.9799/+30.9120+129.9600/+30.9200+129.9478/+30.9276+129.9400/+30.9400+129.9241/+30.9435+129.9200/+30.9591+129.9000/+30.9600+129.8992/+30.9687+129.9000/+30.9800+129.9021/+30.9952+129.9200/+30.9931+129.9400/+30.9916+129.9600/+30.9867+129.9800/+30.9800+129.9948/+30.9778+130.0000/+30.9624+130.0200/+30.9600+130.0209/+30.9561+130.0400/+30.9400+130.0578/+30.9389+130.0600/+30.9389+130.0800/+30.9400+130.0813/+30.9415+130.0800/+30.9600+130.0642/+30.9654+130.0600/+30.9769+130.0400/+30.9800+130.0330/+31.0000+130.0242/+31.0091+130.0200/+31.0200+130.0131/+31.0294+130.0200/ 北西 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/+30.7812+130.3000/+30.8000+130.2801/+30.8188+130.3000/ 北西 1 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 +30.9024+130.3200/+30.9153+130.3400/+30.9114+130.3600/+30.9000+130.3722/+30.8928+130.3800/+30.8800+130.3894/+30.8600+130.3840/+30.8554+130.3800/+30.8400+130.3766/+30.8200+130.3708/+30.8073+130.3600/+30.8000+130.3584/+30.7826+130.3400/+30.7800+130.3398/+30.7602+130.3200/+30.7601+130.3000/+30.7605+130.2800/+30.7664+130.2600/+30.7800+130.2436/+30.7806+130.2400/+30.7840+130.2200/+30.7995+130.2000/+30.8000+130.1994/+30.8157+130.1800/+30.8200+130.1759/+30.8400+130.1699/+30.8600+130.1777/+30.8625+130.1800/+30.8779+130.2000/+30.8800+130.2128/+30.8817+130.2200/+30.8869+130.2400/+30.8873+130.2600/+30.8943+130.2800/+30.8987+130.3000/+30.9000+130.3093/+30.9024+130.3200/ 北西 10 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8189+130.3000/+30.8021+130.3200/+30.8000+130.3221/+30.7980+130.3200/+30.7811+130.3000/+30.8000+130.2809/+30.8189+130.3000/ 北東 2 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２１時から２４時までは火口から西方向、１８日０９時から１２時までは火口から北西方向に降灰が予想されます。 　１７日１８時から１８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 　１７日１８時から２１時まで　西　　　　　　　７０ｋｍ　　５ｋｍ　　　　　 　１７日２１時から２４時まで　西　　　　　　　６０ｋｍ　　５ｋｍ　　　　　 　１８日００時から０３時まで　西　　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　１８日０３時から０６時まで　北西　　　　　　５０ｋｍ　　３ｋｍ　　　　　 　１８日０６時から０９時まで　北西　　　　　　４０ｋｍ　　１ｋｍ　　　　　 　１８日０９時から１２時まで　北西　　　　　　１０ｋｍ　　２ｋｍ　　　　　 　 　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。