2026-10-03T02:00:00Z 通常 気象庁本庁 気象庁 2026-10-03T11:00:00+09:00 2026-10-03T12:00:00+09:00 2026-10-04T06:00:00+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 2026-10-03T12:00:00+09:00 2026-10-03T15:00:00+09:00 降灰 70 +30.8032+129.9000/+30.8056+129.9200/+30.8083+129.9400/+30.8106+129.9600/+30.8126+129.9800/+30.8000+129.9957/+30.7990+130.0000/+30.7997+130.0200/+30.7995+130.0400/+30.7999+130.0600/+30.8000+130.0665/+30.8028+130.0800/+30.8046+130.1000/+30.8064+130.1200/+30.8113+130.1400/+30.8147+130.1600/+30.8174+130.1800/+30.8188+130.2000/+30.8195+130.2200/+30.8198+130.2400/+30.8199+130.2600/+30.8199+130.2800/+30.8199+130.3000/+30.8000+130.3200/+30.7800+130.3199/+30.7601+130.3000/+30.7601+130.2800/+30.7601+130.2600/+30.7600+130.2400/+30.7600+130.2358/+30.7461+130.2200/+30.7422+130.2000/+30.7414+130.1800/+30.7412+130.1600/+30.7410+130.1400/+30.7408+130.1200/+30.7407+130.1000/+30.7404+130.0800/+30.7400+130.0669/+30.7372+130.0600/+30.7336+130.0400/+30.7297+130.0200/+30.7265+130.0000/+30.7231+129.9800/+30.7227+129.9600/+30.7222+129.9400/+30.7217+129.9200/+30.7208+129.9000/+30.7200+129.8944/+30.7110+129.8800/+30.7103+129.8600/+30.7095+129.8400/+30.7088+129.8200/+30.7081+129.8000/+30.7145+129.7800/+30.7177+129.7600/+30.7200+129.7438/+30.7207+129.7400/+30.7231+129.7200/+30.7271+129.7000/+30.7345+129.6800/+30.7400+129.6686/+30.7600+129.6790/+30.7603+129.6800/+30.7663+129.7000/+30.7724+129.7200/+30.7774+129.7400/+30.7800+129.7500/+30.7823+129.7600/+30.7867+129.7800/+30.7905+129.8000/+30.7924+129.8200/+30.7940+129.8400/+30.7964+129.8600/+30.7981+129.8800/+30.8000+129.8897/+30.8032+129.9000/ 西 60 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8132+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3054/+30.7746+130.3000/+30.7707+130.2800/+30.7800+130.2664/+30.8000+130.2639/+30.8132+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 +30.8034+129.6800/+30.8072+129.7000/+30.8092+129.7200/+30.8109+129.7400/+30.8130+129.7600/+30.8153+129.7800/+30.8121+129.8000/+30.8141+129.8200/+30.8158+129.8400/+30.8175+129.8600/+30.8189+129.8800/+30.8128+129.9000/+30.8144+129.9200/+30.8157+129.9400/+30.8166+129.9600/+30.8173+129.9800/+30.8075+130.0000/+30.8087+130.0200/+30.8090+130.0400/+30.8095+130.0600/+30.8114+130.0800/+30.8135+130.1000/+30.8148+130.1200/+30.8165+130.1400/+30.8178+130.1600/+30.8188+130.1800/+30.8194+130.2000/+30.8197+130.2200/+30.8198+130.2400/+30.8199+130.2600/+30.8199+130.2800/+30.8199+130.3000/+30.8000+130.3200/+30.7800+130.3199/+30.7602+130.3000/+30.7601+130.2800/+30.7601+130.2600/+30.7601+130.2400/+30.7601+130.2200/+30.7600+130.2111/+30.7516+130.2000/+30.7454+130.1800/+30.7434+130.1600/+30.7427+130.1400/+30.7421+130.1200/+30.7419+130.1000/+30.7417+130.0800/+30.7416+130.0600/+30.7415+130.0400/+30.7412+130.0200/+30.7410+130.0000/+30.7400+129.9966/+30.7264+129.9800/+30.7267+129.9600/+30.7268+129.9400/+30.7268+129.9200/+30.7271+129.9000/+30.7259+129.8800/+30.7264+129.8600/+30.7270+129.8400/+30.7274+129.8200/+30.7278+129.8000/+30.7219+129.7800/+30.7243+129.7600/+30.7272+129.7400/+30.7308+129.7200/+30.7354+129.7000/+30.7369+129.6800/+30.7387+129.6600/+30.7400+129.6499/+30.7439+129.6400/+30.7560+129.6200/+30.7600+129.6143/+30.7647+129.6200/+30.7800+129.6391/+30.7807+129.6400/+30.7960+129.6600/+30.8000+129.6649/+30.8034+129.6800/ 西 70 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8134+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7802+130.3000/+30.7800+130.2979/+30.7690+130.2800/+30.7800+130.2654/+30.8000+130.2635/+30.8134+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 +30.8022+129.9000/+30.8070+129.9200/+30.8105+129.9400/+30.8125+129.9600/+30.8138+129.9800/+30.8000+129.9978/+30.7995+130.0000/+30.8000+130.0109/+30.8030+130.0200/+30.8062+130.0400/+30.8097+130.0600/+30.8112+130.0800/+30.8142+130.1000/+30.8159+130.1200/+30.8175+130.1400/+30.8185+130.1600/+30.8191+130.1800/+30.8195+130.2000/+30.8197+130.2200/+30.8199+130.2400/+30.8199+130.2600/+30.8200+130.2800/+30.8199+130.3000/+30.8029+130.3200/+30.8000+130.3229/+30.7933+130.3200/+30.7800+130.3200/+30.7601+130.3000/+30.7601+130.2800/+30.7601+130.2600/+30.7601+130.2400/+30.7601+130.2200/+30.7601+130.2000/+30.7600+130.1878/+30.7547+130.1800/+30.7470+130.1600/+30.7445+130.1400/+30.7434+130.1200/+30.7425+130.1000/+30.7423+130.0800/+30.7418+130.0600/+30.7414+130.0400/+30.7406+130.0200/+30.7400+130.0000/+30.7400+129.9999/+30.7251+129.9800/+30.7248+129.9600/+30.7244+129.9400/+30.7240+129.9200/+30.7227+129.9000/+30.7200+129.8866/+30.7141+129.8800/+30.7125+129.8600/+30.7111+129.8400/+30.7115+129.8200/+30.7119+129.8000/+30.7154+129.7800/+30.7172+129.7600/+30.7199+129.7400/+30.7200+129.7392/+30.7238+129.7200/+30.7302+129.7000/+30.7334+129.6800/+30.7373+129.6600/+30.7400+129.6518/+30.7498+129.6600/+30.7600+129.6723/+30.7611+129.6800/+30.7636+129.7000/+30.7704+129.7200/+30.7757+129.7400/+30.7800+129.7594/+30.7801+129.7600/+30.7838+129.7800/+30.7880+129.8000/+30.7910+129.8200/+30.7932+129.8400/+30.7949+129.8600/+30.7964+129.8800/+30.8000+129.8948/+30.8022+129.9000/ 西 60 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8133+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3150/+30.7650+130.3000/+30.7715+130.2800/+30.7800+130.2683/+30.8000+130.2642/+30.8133+130.2800/ 西 3 鹿児島県三島村 4630300 2026-10-03T21:00:00+09:00 2026-10-04T00:00:00+09:00 降灰 70 +30.8016+129.8400/+30.8051+129.8600/+30.8080+129.8800/+30.8088+129.9000/+30.8115+129.9200/+30.8132+129.9400/+30.8151+129.9600/+30.8167+129.9800/+30.8092+130.0000/+30.8107+130.0200/+30.8133+130.0400/+30.8136+130.0600/+30.8151+130.0800/+30.8162+130.1000/+30.8172+130.1200/+30.8182+130.1400/+30.8189+130.1600/+30.8192+130.1800/+30.8196+130.2000/+30.8198+130.2200/+30.8199+130.2400/+30.8199+130.2600/+30.8200+130.2800/+30.8199+130.3000/+30.8047+130.3200/+30.8000+130.3247/+30.7887+130.3200/+30.7800+130.3200/+30.7601+130.3000/+30.7601+130.2800/+30.7601+130.2600/+30.7601+130.2400/+30.7601+130.2200/+30.7601+130.2000/+30.7600+130.1894/+30.7541+130.1800/+30.7472+130.1600/+30.7447+130.1400/+30.7436+130.1200/+30.7429+130.1000/+30.7424+130.0800/+30.7421+130.0600/+30.7414+130.0400/+30.7408+130.0200/+30.7403+130.0000/+30.7400+129.9988/+30.7259+129.9800/+30.7265+129.9600/+30.7267+129.9400/+30.7263+129.9200/+30.7262+129.9000/+30.7244+129.8800/+30.7237+129.8600/+30.7229+129.8400/+30.7233+129.8200/+30.7239+129.8000/+30.7214+129.7800/+30.7238+129.7600/+30.7271+129.7400/+30.7317+129.7200/+30.7380+129.7000/+30.7400+129.6920/+30.7600+129.6831/+30.7674+129.7000/+30.7777+129.7200/+30.7800+129.7254/+30.7856+129.7400/+30.7911+129.7600/+30.7948+129.7800/+30.7960+129.8000/+30.7989+129.8200/+30.8000+129.8315/+30.8016+129.8400/ 西 60 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8113+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3154/+30.7646+130.3000/+30.7708+130.2800/+30.7800+130.2679/+30.8000+130.2663/+30.8113+130.2800/ 西 3 鹿児島県三島村 4630300 2026-10-04T00:00:00+09:00 2026-10-04T03:00:00+09:00 降灰 70 +30.8007+129.8800/+30.8059+129.9000/+30.8088+129.9200/+30.8119+129.9400/+30.8146+129.9600/+30.8165+129.9800/+30.8111+130.0000/+30.8134+130.0200/+30.8141+130.0400/+30.8154+130.0600/+30.8166+130.0800/+30.8172+130.1000/+30.8180+130.1200/+30.8187+130.1400/+30.8190+130.1600/+30.8193+130.1800/+30.8196+130.2000/+30.8197+130.2200/+30.8199+130.2400/+30.8199+130.2600/+30.8200+130.2800/+30.8199+130.3000/+30.8108+130.3200/+30.8000+130.3308/+30.7800+130.3230/+30.7770+130.3200/+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+130.1986/+30.7513+130.1800/+30.7472+130.1600/+30.7453+130.1400/+30.7446+130.1200/+30.7438+130.1000/+30.7431+130.0800/+30.7422+130.0600/+30.7417+130.0400/+30.7411+130.0200/+30.7400+130.0019/+30.7392+130.0000/+30.7268+129.9800/+30.7267+129.9600/+30.7260+129.9400/+30.7247+129.9200/+30.7231+129.9000/+30.7201+129.8800/+30.7200+129.8761/+30.7189+129.8600/+30.7176+129.8400/+30.7165+129.8200/+30.7154+129.8000/+30.7196+129.7800/+30.7200+129.7775/+30.7232+129.7600/+30.7275+129.7400/+30.7318+129.7200/+30.7396+129.7000/+30.7400+129.6994/+30.7407+129.7000/+30.7600+129.7165/+30.7610+129.7200/+30.7663+129.7400/+30.7727+129.7600/+30.7793+129.7800/+30.7800+129.7811/+30.7871+129.8000/+30.7898+129.8200/+30.7923+129.8400/+30.7968+129.8600/+30.8000+129.8783/+30.8007+129.8800/ 西 60 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/+30.7800+130.3148/+30.7652+130.3000/+30.7749+130.2800/+30.7800+130.2726/+30.8000+130.2667/+30.8107+130.2800/ 西 3 鹿児島県三島村 4630300 2026-10-04T03:00:00+09:00 2026-10-04T06:00:00+09:00 降灰 70 +30.8410+129.9000/+30.8442+129.9200/+30.8473+129.9400/+30.8494+129.9600/+30.8507+129.9800/+30.8478+130.0000/+30.8400+130.0161/+30.8395+130.0200/+30.8384+130.0400/+30.8370+130.0600/+30.8362+130.0800/+30.8364+130.1000/+30.8361+130.1200/+30.8349+130.1400/+30.8339+130.1600/+30.8323+130.1800/+30.8298+130.2000/+30.8244+130.2200/+30.8200+130.2275/+30.8199+130.2400/+30.8199+130.2600/+30.8200+130.2800/+30.8200+130.3000/+30.8170+130.3200/+30.8000+130.3370/+30.7800+130.3333/+30.7667+130.3200/+30.7601+130.3000/+30.7600+130.2800/+30.7600+130.2636/+30.7564+130.2600/+30.7438+130.2400/+30.7426+130.2200/+30.7421+130.2000/+30.7416+130.1800/+30.7415+130.1600/+30.7411+130.1400/+30.7410+130.1200/+30.7416+130.1000/+30.7434+130.0800/+30.7449+130.0600/+30.7490+130.0400/+30.7486+130.0200/+30.7489+130.0000/+30.7510+129.9800/+30.7558+129.9600/+30.7600+129.9450/+30.7612+129.9400/+30.7681+129.9200/+30.7749+129.9000/+30.7800+129.8907/+30.7883+129.8800/+30.8000+129.8611/+30.8200+129.8741/+30.8250+129.8800/+30.8400+129.8965/+30.8410+129.9000/ 西 40 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8067+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7802+130.3000/+30.7895+130.2800/+30.8000+130.2721/+30.8067+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、３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。 　３日１２時から４日６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１２時から１５時まで　西　　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　０３日１５時から１８時まで　西　　　　　　　７０ｋｍ　　３ｋｍ　　　　　 　０３日１８時から２１時まで　西　　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　０３日２１時から２４時まで　西　　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　０４日００時から０３時まで　西　　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　０４日０３時から０６時まで　西　　　　　　　４０ｋｍ　　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。