2026-10-02T17:00:00Z 通常 気象庁本庁 気象庁 2026-10-03T02:00:00+09:00 2026-10-03T03:00:00+09:00 2026-10-03T21:00:00+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、３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 2026-10-03T03:00:00+09:00 2026-10-03T06:00:00+09:00 降灰 70 +30.8061+129.8400/+30.8108+129.8600/+30.8142+129.8800/+30.8147+129.9000/+30.8173+129.9200/+30.8179+129.9400/+30.8187+129.9600/+30.8196+129.9800/+30.8140+130.0000/+30.8140+130.0200/+30.8121+130.0400/+30.8117+130.0600/+30.8122+130.0800/+30.8129+130.1000/+30.8138+130.1200/+30.8145+130.1400/+30.8149+130.1600/+30.8163+130.1800/+30.8175+130.2000/+30.8188+130.2200/+30.8195+130.2400/+30.8199+130.2600/+30.8199+130.2800/+30.8199+130.3000/+30.8155+130.3200/+30.8000+130.3355/+30.7800+130.3320/+30.7680+130.3200/+30.7601+130.3000/+30.7600+130.2800/+30.7600+130.2784/+30.7427+130.2600/+30.7410+130.2400/+30.7407+130.2200/+30.7403+130.2000/+30.7400+130.1903/+30.7341+130.1800/+30.7292+130.1600/+30.7265+130.1400/+30.7260+130.1200/+30.7252+130.1000/+30.7252+130.0800/+30.7237+130.0600/+30.7247+130.0400/+30.7265+130.0200/+30.7242+130.0000/+30.7240+129.9800/+30.7262+129.9600/+30.7285+129.9400/+30.7306+129.9200/+30.7325+129.9000/+30.7353+129.8800/+30.7400+129.8603/+30.7401+129.8600/+30.7479+129.8400/+30.7554+129.8200/+30.7600+129.8107/+30.7800+129.8147/+30.7985+129.8200/+30.8000+129.8205/+30.8061+129.8400/ 西 50 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8071+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3118/+30.7682+130.3000/+30.7749+130.2800/+30.7800+130.2736/+30.8000+130.2715/+30.8071+130.2800/ 西 3 鹿児島県三島村 4630300 2026-10-03T06:00:00+09:00 2026-10-03T09:00:00+09:00 降灰 70 +30.8033+130.1600/+30.8102+130.1800/+30.8147+130.2000/+30.8176+130.2200/+30.8193+130.2400/+30.8198+130.2600/+30.8199+130.2800/+30.8199+130.3000/+30.8171+130.3200/+30.8000+130.3371/+30.7800+130.3350/+30.7650+130.3200/+30.7601+130.3000/+30.7600+130.2825/+30.7575+130.2800/+30.7413+130.2600/+30.7406+130.2400/+30.7404+130.2200/+30.7400+130.2117/+30.7305+130.2000/+30.7246+130.1800/+30.7228+130.1600/+30.7218+130.1400/+30.7203+130.1200/+30.7200+130.1176/+30.7121+130.1000/+30.7138+130.0800/+30.7089+130.0600/+30.7087+130.0400/+30.7082+130.0200/+30.7006+130.0000/+30.7000+129.9916/+30.6987+129.9800/+30.7000+129.9621/+30.7001+129.9600/+30.7013+129.9400/+30.7029+129.9200/+30.7036+129.9000/+30.7073+129.8800/+30.7107+129.8600/+30.7154+129.8400/+30.7200+129.8287/+30.7298+129.8400/+30.7400+129.8502/+30.7541+129.8600/+30.7600+129.8631/+30.7675+129.8800/+30.7685+129.9000/+30.7698+129.9200/+30.7775+129.9400/+30.7800+129.9483/+30.7851+129.9600/+30.7905+129.9800/+30.7894+130.0000/+30.7911+130.0200/+30.7931+130.0400/+30.7959+130.0600/+30.7974+130.0800/+30.7993+130.1000/+30.7993+130.1200/+30.7996+130.1400/+30.8000+130.1511/+30.8033+130.1600/ 西 50 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8027+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3128/+30.7672+130.3000/+30.7800+130.2815/+30.7897+130.2800/+30.8000+130.2768/+30.8027+130.2800/ 西 3 鹿児島県三島村 4630300 2026-10-03T09:00:00+09:00 2026-10-03T12:00:00+09:00 降灰 70 +30.8234+129.9200/+30.8240+129.9400/+30.8247+129.9600/+30.8254+129.9800/+30.8200+129.9873/+30.8159+130.0000/+30.8176+130.0200/+30.8164+130.0400/+30.8153+130.0600/+30.8165+130.0800/+30.8164+130.1000/+30.8166+130.1200/+30.8169+130.1400/+30.8169+130.1600/+30.8178+130.1800/+30.8186+130.2000/+30.8192+130.2200/+30.8197+130.2400/+30.8199+130.2600/+30.8199+130.2800/+30.8199+130.3000/+30.8143+130.3200/+30.8000+130.3343/+30.7800+130.3296/+30.7704+130.3200/+30.7601+130.3000/+30.7600+130.2800/+30.7600+130.2600/+30.7600+130.2498/+30.7506+130.2400/+30.7427+130.2200/+30.7414+130.2000/+30.7411+130.1800/+30.7410+130.1600/+30.7410+130.1400/+30.7407+130.1200/+30.7400+130.1000/+30.7400+130.0993/+30.7345+130.0800/+30.7308+130.0600/+30.7286+130.0400/+30.7285+130.0200/+30.7265+130.0000/+30.7246+129.9800/+30.7256+129.9600/+30.7268+129.9400/+30.7281+129.9200/+30.7311+129.9000/+30.7359+129.8800/+30.7384+129.8600/+30.7400+129.8497/+30.7418+129.8400/+30.7489+129.8200/+30.7592+129.8000/+30.7600+129.7991/+30.7626+129.8000/+30.7800+129.8127/+30.7863+129.8200/+30.7969+129.8400/+30.8000+129.8440/+30.8064+129.8600/+30.8119+129.8800/+30.8178+129.9000/+30.8200+129.9072/+30.8234+129.9200/ 西 50 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8106+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3086/+30.7714+130.3000/+30.7715+130.2800/+30.7800+130.2689/+30.8000+130.2668/+30.8106+130.2800/ 西 3 鹿児島県三島村 4630300 2026-10-03T12:00:00+09:00 2026-10-03T15:00:00+09:00 降灰 70 +30.8023+129.7600/+30.8063+129.7800/+30.8066+129.8000/+30.8114+129.8200/+30.8150+129.8400/+30.8166+129.8600/+30.8179+129.8800/+30.8144+129.9000/+30.8153+129.9200/+30.8169+129.9400/+30.8176+129.9600/+30.8176+129.9800/+30.8113+130.0000/+30.8115+130.0200/+30.8139+130.0400/+30.8129+130.0600/+30.8133+130.0800/+30.8147+130.1000/+30.8158+130.1200/+30.8167+130.1400/+30.8175+130.1600/+30.8183+130.1800/+30.8190+130.2000/+30.8195+130.2200/+30.8198+130.2400/+30.8199+130.2600/+30.8199+130.2800/+30.8199+130.3000/+30.8073+130.3200/+30.8000+130.3273/+30.7847+130.3200/+30.7800+130.3200/+30.7601+130.3000/+30.7601+130.2800/+30.7601+130.2600/+30.7600+130.2400/+30.7600+130.2358/+30.7458+130.2200/+30.7423+130.2000/+30.7416+130.1800/+30.7413+130.1600/+30.7411+130.1400/+30.7410+130.1200/+30.7408+130.1000/+30.7404+130.0800/+30.7400+130.0695/+30.7357+130.0600/+30.7314+130.0400/+30.7298+130.0200/+30.7276+130.0000/+30.7240+129.9800/+30.7243+129.9600/+30.7243+129.9400/+30.7236+129.9200/+30.7244+129.9000/+30.7236+129.8800/+30.7245+129.8600/+30.7256+129.8400/+30.7279+129.8200/+30.7311+129.8000/+30.7278+129.7800/+30.7304+129.7600/+30.7343+129.7400/+30.7397+129.7200/+30.7400+129.7191/+30.7600+129.7005/+30.7792+129.7200/+30.7800+129.7210/+30.7938+129.7400/+30.8000+129.7507/+30.8023+129.7600/ 西 60 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8119+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3049/+30.7751+130.3000/+30.7707+130.2800/+30.7800+130.2674/+30.8000+130.2652/+30.8119+130.2800/ 西 3 鹿児島県三島村 4630300 2026-10-03T15:00:00+09:00 2026-10-03T18:00:00+09:00 降灰 70 +30.8209+129.8800/+30.8200+129.8819/+30.8151+129.9000/+30.8161+129.9200/+30.8165+129.9400/+30.8173+129.9600/+30.8182+129.9800/+30.8109+130.0000/+30.8125+130.0200/+30.8128+130.0400/+30.8133+130.0600/+30.8143+130.0800/+30.8151+130.1000/+30.8160+130.1200/+30.8170+130.1400/+30.8182+130.1600/+30.8189+130.1800/+30.8194+130.2000/+30.8197+130.2200/+30.8199+130.2400/+30.8199+130.2600/+30.8199+130.2800/+30.8199+130.3000/+30.8004+130.3200/+30.8000+130.3204/+30.7990+130.3200/+30.7800+130.3199/+30.7601+130.3000/+30.7601+130.2800/+30.7601+130.2600/+30.7601+130.2400/+30.7601+130.2200/+30.7600+130.2000/+30.7600+130.1984/+30.7472+130.1800/+30.7437+130.1600/+30.7428+130.1400/+30.7422+130.1200/+30.7421+130.1000/+30.7420+130.0800/+30.7418+130.0600/+30.7415+130.0400/+30.7412+130.0200/+30.7407+130.0000/+30.7400+129.9972/+30.7269+129.9800/+30.7268+129.9600/+30.7270+129.9400/+30.7276+129.9200/+30.7284+129.9000/+30.7277+129.8800/+30.7277+129.8600/+30.7277+129.8400/+30.7286+129.8200/+30.7298+129.8000/+30.7257+129.7800/+30.7300+129.7600/+30.7349+129.7400/+30.7400+129.7202/+30.7401+129.7200/+30.7553+129.7000/+30.7600+129.6919/+30.7800+129.6994/+30.7813+129.7000/+30.8000+129.7064/+30.8039+129.7200/+30.8086+129.7400/+30.8126+129.7600/+30.8161+129.7800/+30.8145+129.8000/+30.8163+129.8200/+30.8179+129.8400/+30.8195+129.8600/+30.8200+129.8667/+30.8209+129.8800/ 西 60 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8130+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.7800+130.2853/+30.7747+130.2800/+30.7800+130.2717/+30.8000+130.2642/+30.8130+130.2800/ 西 3 鹿児島県三島村 4630300 2026-10-03T18:00:00+09:00 2026-10-03T21:00:00+09:00 降灰 70 +30.8053+129.9800/+30.8000+129.9855/+30.7953+130.0000/+30.7972+130.0200/+30.7979+130.0400/+30.7986+130.0600/+30.7993+130.0800/+30.7996+130.1000/+30.8000+130.1200/+30.8000+130.1213/+30.8089+130.1400/+30.8144+130.1600/+30.8174+130.1800/+30.8189+130.2000/+30.8195+130.2200/+30.8198+130.2400/+30.8199+130.2600/+30.8200+130.2800/+30.8199+130.3000/+30.8045+130.3200/+30.8000+130.3245/+30.7887+130.3200/+30.7800+130.3200/+30.7601+130.3000/+30.7601+130.2800/+30.7601+130.2600/+30.7601+130.2400/+30.7600+130.2239/+30.7564+130.2200/+30.7441+130.2000/+30.7421+130.1800/+30.7415+130.1600/+30.7411+130.1400/+30.7408+130.1200/+30.7407+130.1000/+30.7402+130.0800/+30.7400+130.0739/+30.7337+130.0600/+30.7297+130.0400/+30.7250+130.0200/+30.7218+130.0000/+30.7201+129.9800/+30.7200+129.9780/+30.7141+129.9600/+30.7092+129.9400/+30.7053+129.9200/+30.7000+129.9075/+30.6965+129.9000/+30.6954+129.8800/+30.6942+129.8600/+30.6930+129.8400/+30.6928+129.8200/+30.6924+129.8000/+30.6888+129.7800/+30.6898+129.7600/+30.6911+129.7400/+30.6928+129.7200/+30.6948+129.7000/+30.6982+129.6800/+30.7000+129.6704/+30.7080+129.6800/+30.7200+129.6907/+30.7347+129.7000/+30.7400+129.7022/+30.7521+129.7200/+30.7600+129.7324/+30.7621+129.7400/+30.7681+129.7600/+30.7736+129.7800/+30.7758+129.8000/+30.7800+129.8136/+30.7815+129.8200/+30.7853+129.8400/+30.7866+129.8600/+30.7878+129.8800/+30.7829+129.9000/+30.7902+129.9200/+30.7956+129.9400/+30.7998+129.9600/+30.8000+129.9613/+30.8053+129.9800/ 西 60 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8116+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3139/+30.7661+130.3000/+30.7704+130.2800/+30.7800+130.2675/+30.8000+130.2656/+30.8116+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、３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。 　３日３時から３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 　０３日０３時から０６時まで　西　　　　　　　５０ｋｍ　　３ｋｍ　　　　　 　０３日０６時から０９時まで　西　　　　　　　５０ｋｍ　　３ｋｍ　　　　　 　０３日０９時から１２時まで　西　　　　　　　５０ｋｍ　　３ｋｍ　　　　　 　０３日１２時から１５時まで　西　　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　０３日１５時から１８時まで　西　　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　０３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。