2026-09-16T17:00:00Z 通常 気象庁本庁 気象庁 2026-09-17T02:00:00+09:00 2026-09-17T03:00:00+09:00 2026-09-17T21:00:00+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 2026-09-17T03:00:00+09:00 2026-09-17T06:00:00+09:00 降灰 70 +30.8032+129.9400/+30.8091+129.9600/+30.8137+129.9800/+30.8137+130.0000/+30.8101+130.0200/+30.8097+130.0400/+30.8107+130.0600/+30.8113+130.0800/+30.8129+130.1000/+30.8119+130.1200/+30.8126+130.1400/+30.8140+130.1600/+30.8150+130.1800/+30.8167+130.2000/+30.8179+130.2200/+30.8194+130.2400/+30.8199+130.2600/+30.8200+130.2800/+30.8200+130.3000/+30.8175+130.3200/+30.8000+130.3374/+30.7800+130.3351/+30.7649+130.3200/+30.7601+130.3000/+30.7600+130.2800/+30.7600+130.2767/+30.7436+130.2600/+30.7409+130.2400/+30.7406+130.2200/+30.7403+130.2000/+30.7400+130.1932/+30.7298+130.1800/+30.7256+130.1600/+30.7233+130.1400/+30.7219+130.1200/+30.7209+130.1000/+30.7203+130.0800/+30.7200+130.0730/+30.7173+130.0600/+30.7124+130.0400/+30.7119+130.0200/+30.7131+130.0000/+30.7190+129.9800/+30.7200+129.9667/+30.7204+129.9600/+30.7238+129.9400/+30.7307+129.9200/+30.7400+129.9069/+30.7579+129.9000/+30.7600+129.8990/+30.7671+129.9000/+30.7800+129.9014/+30.7971+129.9200/+30.8000+129.9289/+30.8032+129.9400/ 西 40 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8189+130.3000/+30.8000+130.3188/+30.7800+130.3096/+30.7704+130.3000/+30.7800+130.2824/+30.8000+130.2800/+30.8189+130.3000/ 南西 2 鹿児島県三島村 4630300 2026-09-17T06:00:00+09:00 2026-09-17T09:00:00+09:00 降灰 70 +30.8120+130.2400/+30.8196+130.2600/+30.8199+130.2800/+30.8199+130.3000/+30.8158+130.3200/+30.8000+130.3358/+30.7800+130.3332/+30.7668+130.3200/+30.7601+130.3000/+30.7600+130.2878/+30.7522+130.2800/+30.7406+130.2600/+30.7402+130.2400/+30.7400+130.2205/+30.7395+130.2200/+30.7227+130.2000/+30.7210+130.1800/+30.7200+130.1617/+30.7185+130.1600/+30.7063+130.1400/+30.7023+130.1200/+30.7000+130.1001/+30.6999+130.1000/+30.6889+130.0800/+30.6856+130.0600/+30.6818+130.0400/+30.6800+130.0345/+30.6698+130.0200/+30.6679+130.0000/+30.6658+129.9800/+30.6649+129.9600/+30.6650+129.9400/+30.6665+129.9200/+30.6633+129.9000/+30.6662+129.8800/+30.6714+129.8600/+30.6793+129.8400/+30.6800+129.8387/+30.7000+129.8392/+30.7200+129.8396/+30.7202+129.8400/+30.7309+129.8600/+30.7380+129.8800/+30.7400+129.8870/+30.7432+129.9000/+30.7479+129.9200/+30.7539+129.9400/+30.7580+129.9600/+30.7600+129.9756/+30.7607+129.9800/+30.7600+129.9849/+30.7591+130.0000/+30.7600+130.0062/+30.7637+130.0200/+30.7687+130.0400/+30.7731+130.0600/+30.7768+130.0800/+30.7778+130.1000/+30.7800+130.1188/+30.7807+130.1200/+30.7875+130.1400/+30.7941+130.1600/+30.7980+130.1800/+30.7993+130.2000/+30.7998+130.2200/+30.8000+130.2270/+30.8120+130.2400/ 西 50 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8072+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3158/+30.7642+130.3000/+30.7720+130.2800/+30.7800+130.2699/+30.8000+130.2728/+30.8072+130.2800/ 西 3 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 +30.8079+130.2000/+30.8172+130.2200/+30.8194+130.2400/+30.8199+130.2600/+30.8199+130.2800/+30.8199+130.3000/+30.8110+130.3200/+30.8000+130.3310/+30.7800+130.3252/+30.7748+130.3200/+30.7601+130.3000/+30.7600+130.2800/+30.7600+130.2699/+30.7504+130.2600/+30.7411+130.2400/+30.7406+130.2200/+30.7405+130.2000/+30.7403+130.1800/+30.7401+130.1600/+30.7400+130.1583/+30.7282+130.1400/+30.7254+130.1200/+30.7236+130.1000/+30.7225+130.0800/+30.7219+130.0600/+30.7213+130.0400/+30.7209+130.0200/+30.7200+130.0130/+30.7088+130.0000/+30.7071+129.9800/+30.7049+129.9600/+30.7038+129.9400/+30.7035+129.9200/+30.7000+129.9091/+30.6965+129.9000/+30.6966+129.8800/+30.6973+129.8600/+30.6982+129.8400/+30.6997+129.8200/+30.7000+129.8161/+30.7016+129.8000/+30.7117+129.7800/+30.7200+129.7600/+30.7324+129.7400/+30.7400+129.7303/+30.7559+129.7400/+30.7600+129.7422/+30.7669+129.7600/+30.7734+129.7800/+30.7799+129.8000/+30.7800+129.8009/+30.7827+129.8200/+30.7847+129.8400/+30.7871+129.8600/+30.7889+129.8800/+30.7845+129.9000/+30.7880+129.9200/+30.7921+129.9400/+30.7953+129.9600/+30.7976+129.9800/+30.7878+130.0000/+30.7916+130.0200/+30.7939+130.0400/+30.7956+130.0600/+30.7969+130.0800/+30.7980+130.1000/+30.7986+130.1200/+30.7992+130.1400/+30.7996+130.1600/+30.7998+130.1800/+30.8000+130.1884/+30.8079+130.2000/ 西 50 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8098+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3143/+30.7657+130.3000/+30.7694+130.2800/+30.7800+130.2671/+30.8000+130.2684/+30.8098+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 +30.8145+130.2400/+30.8195+130.2600/+30.8199+130.2800/+30.8199+130.3000/+30.8095+130.3200/+30.8000+130.3295/+30.7800+130.3241/+30.7759+130.3200/+30.7601+130.3000/+30.7600+130.2840/+30.7560+130.2800/+30.7404+130.2600/+30.7401+130.2400/+30.7400+130.2217/+30.7388+130.2200/+30.7218+130.2000/+30.7207+130.1800/+30.7201+130.1600/+30.7200+130.1587/+30.7047+130.1400/+30.7017+130.1200/+30.7002+130.1000/+30.7000+130.0978/+30.6879+130.0800/+30.6830+130.0600/+30.6806+130.0400/+30.6800+130.0387/+30.6635+130.0200/+30.6617+130.0000/+30.6600+129.9841/+30.6569+129.9800/+30.6454+129.9600/+30.6401+129.9400/+30.6400+129.9389/+30.6351+129.9200/+30.6249+129.9000/+30.6200+129.8844/+30.6189+129.8800/+30.6167+129.8600/+30.6145+129.8400/+30.6136+129.8200/+30.6126+129.8000/+30.6142+129.7800/+30.6172+129.7600/+30.6200+129.7511/+30.6252+129.7400/+30.6400+129.7216/+30.6600+129.7347/+30.6621+129.7400/+30.6710+129.7600/+30.6795+129.7800/+30.6800+129.7807/+30.6910+129.8000/+30.7000+129.8183/+30.7006+129.8200/+30.7061+129.8400/+30.7104+129.8600/+30.7134+129.8800/+30.7156+129.9000/+30.7197+129.9200/+30.7200+129.9219/+30.7296+129.9400/+30.7387+129.9600/+30.7400+129.9635/+30.7471+129.9800/+30.7400+129.9903/+30.7385+130.0000/+30.7400+130.0166/+30.7419+130.0200/+30.7545+130.0400/+30.7577+130.0600/+30.7597+130.0800/+30.7600+130.0825/+30.7724+130.1000/+30.7776+130.1200/+30.7793+130.1400/+30.7800+130.1502/+30.7878+130.1600/+30.7971+130.1800/+30.7993+130.2000/+30.7998+130.2200/+30.8000+130.2246/+30.8145+130.2400/ 西 60 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8102+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3173/+30.7627+130.3000/+30.7684+130.2800/+30.7800+130.2656/+30.8000+130.2677/+30.8102+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 +30.8026+129.9000/+30.8057+129.9200/+30.8087+129.9400/+30.8112+129.9600/+30.8131+129.9800/+30.8018+130.0000/+30.8000+130.0071/+30.7995+130.0200/+30.7994+130.0400/+30.8000+130.0511/+30.8033+130.0600/+30.8046+130.0800/+30.8074+130.1000/+30.8113+130.1200/+30.8121+130.1400/+30.8147+130.1600/+30.8167+130.1800/+30.8182+130.2000/+30.8192+130.2200/+30.8197+130.2400/+30.8199+130.2600/+30.8199+130.2800/+30.8199+130.3000/+30.8107+130.3200/+30.8000+130.3307/+30.7800+130.3223/+30.7777+130.3200/+30.7601+130.3000/+30.7601+130.2800/+30.7600+130.2600/+30.7600+130.2554/+30.7450+130.2400/+30.7413+130.2200/+30.7408+130.2000/+30.7406+130.1800/+30.7405+130.1600/+30.7402+130.1400/+30.7400+130.1360/+30.7297+130.1200/+30.7261+130.1000/+30.7245+130.0800/+30.7235+130.0600/+30.7232+130.0400/+30.7227+130.0200/+30.7201+130.0000/+30.7200+129.9900/+30.7190+129.9800/+30.7182+129.9600/+30.7162+129.9400/+30.7134+129.9200/+30.7104+129.9000/+30.7099+129.8800/+30.7108+129.8600/+30.7117+129.8400/+30.7136+129.8200/+30.7158+129.8000/+30.7170+129.7800/+30.7198+129.7600/+30.7200+129.7584/+30.7230+129.7400/+30.7263+129.7200/+30.7305+129.7000/+30.7350+129.6800/+30.7400+129.6619/+30.7448+129.6600/+30.7600+129.6542/+30.7624+129.6600/+30.7692+129.6800/+30.7746+129.7000/+30.7799+129.7200/+30.7800+129.7203/+30.7842+129.7400/+30.7887+129.7600/+30.7930+129.7800/+30.7956+129.8000/+30.7959+129.8200/+30.7962+129.8400/+30.7974+129.8600/+30.7983+129.8800/+30.8000+129.8896/+30.8026+129.9000/ 西 60 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8129+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3144/+30.7656+130.3000/+30.7698+130.2800/+30.7800+130.2661/+30.8000+130.2644/+30.8129+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 +30.8403+129.7600/+30.8402+129.7800/+30.8467+129.8000/+30.8462+129.8200/+30.8458+129.8400/+30.8472+129.8600/+30.8485+129.8800/+30.8418+129.9000/+30.8400+129.9122/+30.8396+129.9200/+30.8388+129.9400/+30.8386+129.9600/+30.8387+129.9800/+30.8359+130.0000/+30.8350+130.0200/+30.8345+130.0400/+30.8354+130.0600/+30.8354+130.0800/+30.8347+130.1000/+30.8345+130.1200/+30.8365+130.1400/+30.8353+130.1600/+30.8363+130.1800/+30.8360+130.2000/+30.8355+130.2200/+30.8330+130.2400/+30.8261+130.2600/+30.8200+130.2677/+30.8200+130.2800/+30.8199+130.3000/+30.8147+130.3200/+30.8000+130.3347/+30.7800+130.3296/+30.7704+130.3200/+30.7602+130.3000/+30.7601+130.2800/+30.7601+130.2600/+30.7601+130.2400/+30.7600+130.2200/+30.7600+130.2199/+30.7482+130.2000/+30.7462+130.1800/+30.7456+130.1600/+30.7452+130.1400/+30.7450+130.1200/+30.7444+130.1000/+30.7452+130.0800/+30.7457+130.0600/+30.7472+130.0400/+30.7468+130.0200/+30.7477+130.0000/+30.7423+129.9800/+30.7434+129.9600/+30.7446+129.9400/+30.7457+129.9200/+30.7479+129.9000/+30.7479+129.8800/+30.7506+129.8600/+30.7539+129.8400/+30.7599+129.8200/+30.7600+129.8197/+30.7664+129.8000/+30.7695+129.7800/+30.7735+129.7600/+30.7781+129.7400/+30.7800+129.7317/+30.7827+129.7200/+30.7875+129.7000/+30.7952+129.6800/+30.8000+129.6704/+30.8148+129.6800/+30.8200+129.6844/+30.8334+129.7000/+30.8371+129.7200/+30.8395+129.7400/+30.8400+129.7502/+30.8403+129.7600/ 西 60 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8120+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.7800+130.2881/+30.7719+130.2800/+30.7800+130.2689/+30.8000+130.2646/+30.8120+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、１７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。 　１７日３時から１７日２１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０３時から０６時まで　西　　　　　　　４０ｋｍ　　２ｋｍ　　　　　 　１７日０６時から０９時まで　西　　　　　　　５０ｋｍ　　３ｋｍ　　　　　 　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　　　　　　　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。