2026-10-02T23:00:00Z 通常 気象庁本庁 気象庁 2026-10-03T08:00:00+09:00 2026-10-03T09:00:00+09:00 2026-10-04T03:00:00+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、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 2026-10-03T09:00:00+09:00 2026-10-03T12:00:00+09:00 降灰 70 +30.8048+129.9400/+30.8084+129.9600/+30.8103+129.9800/+30.8045+130.0000/+30.8074+130.0200/+30.8064+130.0400/+30.8083+130.0600/+30.8091+130.0800/+30.8086+130.1000/+30.8109+130.1200/+30.8123+130.1400/+30.8141+130.1600/+30.8152+130.1800/+30.8172+130.2000/+30.8188+130.2200/+30.8196+130.2400/+30.8199+130.2600/+30.8199+130.2800/+30.8199+130.3000/+30.8107+130.3200/+30.8000+130.3307/+30.7800+130.3242/+30.7758+130.3200/+30.7601+130.3000/+30.7600+130.2800/+30.7600+130.2752/+30.7453+130.2600/+30.7414+130.2400/+30.7408+130.2200/+30.7404+130.2000/+30.7400+130.1845/+30.7371+130.1800/+30.7289+130.1600/+30.7260+130.1400/+30.7243+130.1200/+30.7223+130.1000/+30.7214+130.0800/+30.7200+130.0660/+30.7176+130.0600/+30.7118+130.0400/+30.7159+130.0200/+30.7064+130.0000/+30.7043+129.9800/+30.7035+129.9600/+30.7041+129.9400/+30.7067+129.9200/+30.7051+129.9000/+30.7070+129.8800/+30.7066+129.8600/+30.7063+129.8400/+30.7086+129.8200/+30.7116+129.8000/+30.7200+129.7904/+30.7400+129.7828/+30.7600+129.7867/+30.7691+129.8000/+30.7756+129.8200/+30.7800+129.8380/+30.7804+129.8400/+30.7854+129.8600/+30.7895+129.8800/+30.7959+129.9000/+30.7991+129.9200/+30.8000+129.9239/+30.8048+129.9400/ 西 50 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+130.3093/+30.7707+130.3000/+30.7712+130.2800/+30.7800+130.2678/+30.8000+130.2655/+30.8113+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 +30.8016+129.9000/+30.8034+129.9200/+30.8082+129.9400/+30.8111+129.9600/+30.8132+129.9800/+30.8000+129.9974/+30.7994+130.0000/+30.7995+130.0200/+30.7999+130.0400/+30.7998+130.0600/+30.8000+130.0682/+30.8031+130.0800/+30.8075+130.1000/+30.8100+130.1200/+30.8122+130.1400/+30.8150+130.1600/+30.8171+130.1800/+30.8186+130.2000/+30.8194+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+130.2390/+30.7436+130.2200/+30.7416+130.2000/+30.7412+130.1800/+30.7410+130.1600/+30.7409+130.1400/+30.7407+130.1200/+30.7402+130.1000/+30.7400+130.0942/+30.7333+130.0800/+30.7292+130.0600/+30.7273+130.0400/+30.7263+130.0200/+30.7237+130.0000/+30.7216+129.9800/+30.7213+129.9600/+30.7209+129.9400/+30.7202+129.9200/+30.7200+129.9127/+30.7174+129.9000/+30.7103+129.8800/+30.7088+129.8600/+30.7075+129.8400/+30.7083+129.8200/+30.7091+129.8000/+30.7145+129.7800/+30.7176+129.7600/+30.7200+129.7449/+30.7209+129.7400/+30.7241+129.7200/+30.7285+129.7000/+30.7341+129.6800/+30.7400+129.6661/+30.7600+129.6727/+30.7629+129.6800/+30.7699+129.7000/+30.7746+129.7200/+30.7783+129.7400/+30.7800+129.7478/+30.7824+129.7600/+30.7867+129.7800/+30.7902+129.8000/+30.7926+129.8200/+30.7947+129.8400/+30.7963+129.8600/+30.7977+129.8800/+30.8000+129.8942/+30.8016+129.9000/ 西 60 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8126+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3110/+30.7690+130.3000/+30.7700+130.2800/+30.7800+130.2664/+30.8000+130.2643/+30.8126+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 +30.8020+129.9200/+30.8039+129.9400/+30.8065+129.9600/+30.8091+129.9800/+30.8000+129.9898/+30.7967+130.0000/+30.7978+130.0200/+30.7983+130.0400/+30.7987+130.0600/+30.7990+130.0800/+30.7993+130.1000/+30.7996+130.1200/+30.7998+130.1400/+30.8000+130.1524/+30.8041+130.1600/+30.8135+130.1800/+30.8176+130.2000/+30.8193+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+130.2370/+30.7447+130.2200/+30.7417+130.2000/+30.7411+130.1800/+30.7409+130.1600/+30.7408+130.1400/+30.7407+130.1200/+30.7405+130.1000/+30.7401+130.0800/+30.7400+130.0751/+30.7343+130.0600/+30.7291+130.0400/+30.7271+130.0200/+30.7235+130.0000/+30.7220+129.9800/+30.7213+129.9600/+30.7206+129.9400/+30.7200+129.9270/+30.7181+129.9200/+30.7100+129.9000/+30.7031+129.8800/+30.7017+129.8600/+30.7005+129.8400/+30.7011+129.8200/+30.7016+129.8000/+30.7090+129.7800/+30.7112+129.7600/+30.7130+129.7400/+30.7139+129.7200/+30.7152+129.7000/+30.7188+129.6800/+30.7200+129.6746/+30.7237+129.6600/+30.7311+129.6400/+30.7400+129.6232/+30.7578+129.6400/+30.7600+129.6422/+30.7641+129.6600/+30.7680+129.6800/+30.7712+129.7000/+30.7753+129.7200/+30.7785+129.7400/+30.7800+129.7473/+30.7822+129.7600/+30.7858+129.7800/+30.7886+129.8000/+30.7906+129.8200/+30.7922+129.8400/+30.7933+129.8600/+30.7943+129.8800/+30.7986+129.9000/+30.8000+129.9106/+30.8020+129.9200/ 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+130.3123/+30.7677+130.3000/+30.7690+130.2800/+30.7800+130.2657/+30.8000+130.2635/+30.8133+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 +30.8025+130.1600/+30.8138+130.1800/+30.8180+130.2000/+30.8194+130.2200/+30.8198+130.2400/+30.8199+130.2600/+30.8199+130.2800/+30.8199+130.3000/+30.8031+130.3200/+30.8000+130.3231/+30.7923+130.3200/+30.7800+130.3200/+30.7601+130.3000/+30.7601+130.2800/+30.7601+130.2600/+30.7601+130.2400/+30.7600+130.2332/+30.7479+130.2200/+30.7424+130.2000/+30.7414+130.1800/+30.7410+130.1600/+30.7408+130.1400/+30.7406+130.1200/+30.7403+130.1000/+30.7400+130.0926/+30.7330+130.0800/+30.7280+130.0600/+30.7243+130.0400/+30.7232+130.0200/+30.7203+130.0000/+30.7200+129.9951/+30.7132+129.9800/+30.7083+129.9600/+30.7047+129.9400/+30.7020+129.9200/+30.7000+129.9153/+30.6929+129.9000/+30.6919+129.8800/+30.6909+129.8600/+30.6900+129.8400/+30.6893+129.8200/+30.6884+129.8000/+30.6800+129.7803/+30.6798+129.7800/+30.6799+129.7600/+30.6800+129.7589/+30.6810+129.7400/+30.6832+129.7200/+30.6861+129.7000/+30.6892+129.6800/+30.6931+129.6600/+30.6970+129.6400/+30.7000+129.6216/+30.7033+129.6400/+30.7091+129.6600/+30.7179+129.6800/+30.7200+129.6842/+30.7285+129.7000/+30.7400+129.7136/+30.7441+129.7200/+30.7555+129.7400/+30.7600+129.7474/+30.7643+129.7600/+30.7701+129.7800/+30.7670+129.8000/+30.7762+129.8200/+30.7800+129.8334/+30.7815+129.8400/+30.7844+129.8600/+30.7866+129.8800/+30.7800+129.8910/+30.7776+129.9000/+30.7796+129.9200/+30.7800+129.9228/+30.7891+129.9400/+30.7957+129.9600/+30.7997+129.9800/+30.7920+130.0000/+30.7948+130.0200/+30.7968+130.0400/+30.7978+130.0600/+30.7986+130.0800/+30.7991+130.1000/+30.7994+130.1200/+30.7997+130.1400/+30.8000+130.1560/+30.8025+130.1600/ 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+130.3154/+30.7646+130.3000/+30.7694+130.2800/+30.7800+130.2665/+30.8000+130.2658/+30.8116+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 +30.8022+129.9000/+30.8068+129.9200/+30.8102+129.9400/+30.8126+129.9600/+30.8145+129.9800/+30.8053+130.0000/+30.8073+130.0200/+30.8102+130.0400/+30.8117+130.0600/+30.8137+130.0800/+30.8154+130.1000/+30.8167+130.1200/+30.8177+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/+30.8060+130.3200/+30.8000+130.3260/+30.7852+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/+30.7600+130.2101/+30.7529+130.2000/+30.7458+130.1800/+30.7437+130.1600/+30.7428+130.1400/+30.7422+130.1200/+30.7419+130.1000/+30.7415+130.0800/+30.7406+130.0600/+30.7401+130.0400/+30.7400+130.0371/+30.7341+130.0200/+30.7295+130.0000/+30.7236+129.9800/+30.7239+129.9600/+30.7236+129.9400/+30.7224+129.9200/+30.7204+129.9000/+30.7200+129.8980/+30.7080+129.8800/+30.7080+129.8600/+30.7079+129.8400/+30.7088+129.8200/+30.7097+129.8000/+30.7142+129.7800/+30.7151+129.7600/+30.7170+129.7400/+30.7200+129.7223/+30.7205+129.7200/+30.7261+129.7000/+30.7309+129.6800/+30.7381+129.6600/+30.7400+129.6566/+30.7439+129.6600/+30.7600+129.6749/+30.7612+129.6800/+30.7657+129.7000/+30.7719+129.7200/+30.7766+129.7400/+30.7800+129.7565/+30.7806+129.7600/+30.7844+129.7800/+30.7888+129.8000/+30.7915+129.8200/+30.7935+129.8400/+30.7953+129.8600/+30.7967+129.8800/+30.8000+129.8942/+30.8022+129.9000/ 西 60 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8108+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3172/+30.7628+130.3000/+30.7695+130.2800/+30.7800+130.2667/+30.8000+130.2667/+30.8108+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 +30.8031+129.9600/+30.8078+129.9800/+30.8000+129.9946/+30.7991+130.0000/+30.8000+130.0058/+30.8063+130.0200/+30.8082+130.0400/+30.8128+130.0600/+30.8140+130.0800/+30.8153+130.1000/+30.8164+130.1200/+30.8175+130.1400/+30.8180+130.1600/+30.8188+130.1800/+30.8192+130.2000/+30.8196+130.2200/+30.8198+130.2400/+30.8199+130.2600/+30.8200+130.2800/+30.8199+130.3000/+30.8139+130.3200/+30.8000+130.3339/+30.7800+130.3286/+30.7714+130.3200/+30.7601+130.3000/+30.7600+130.2800/+30.7601+130.2600/+30.7601+130.2400/+30.7600+130.2341/+30.7481+130.2200/+30.7437+130.2000/+30.7422+130.1800/+30.7415+130.1600/+30.7413+130.1400/+30.7410+130.1200/+30.7406+130.1000/+30.7400+130.0862/+30.7371+130.0800/+30.7286+130.0600/+30.7257+130.0400/+30.7242+130.0200/+30.7211+130.0000/+30.7200+129.9904/+30.7155+129.9800/+30.7109+129.9600/+30.7080+129.9400/+30.7060+129.9200/+30.7000+129.9008/+30.6997+129.9000/+30.6992+129.8800/+30.6979+129.8600/+30.6967+129.8400/+30.6968+129.8200/+30.6969+129.8000/+30.6957+129.7800/+30.6968+129.7600/+30.6992+129.7400/+30.7000+129.7357/+30.7032+129.7400/+30.7200+129.7558/+30.7295+129.7600/+30.7400+129.7623/+30.7563+129.7800/+30.7600+129.7871/+30.7628+129.8000/+30.7701+129.8200/+30.7753+129.8400/+30.7800+129.8540/+30.7816+129.8600/+30.7858+129.8800/+30.7872+129.9000/+30.7933+129.9200/+30.7980+129.9400/+30.8000+129.9495/+30.8031+129.9600/ 西 50 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+130.3155/+30.7645+130.3000/+30.7743+130.2800/+30.7800+130.2724/+30.8000+130.2668/+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、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９時から４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 　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　　　　　 　０３日２１時から２４時まで　西　　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　０４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。