2026-10-03T05:00:00Z 通常 気象庁本庁 気象庁 2026-10-03T14:00:00+09:00 2026-10-03T15:00:00+09:00 2026-10-04T09:00:00+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 2026-10-03T15:00:00+09:00 2026-10-03T18:00:00+09:00 降灰 70 +30.8214+129.6400/+30.8256+129.6600/+30.8286+129.6800/+30.8310+129.7000/+30.8333+129.7200/+30.8350+129.7400/+30.8359+129.7600/+30.8364+129.7800/+30.8334+129.8000/+30.8333+129.8200/+30.8333+129.8400/+30.8334+129.8600/+30.8335+129.8800/+30.8328+129.9000/+30.8335+129.9200/+30.8341+129.9400/+30.8343+129.9600/+30.8342+129.9800/+30.8241+130.0000/+30.8200+130.0138/+30.8198+130.0200/+30.8193+130.0400/+30.8191+130.0600/+30.8193+130.0800/+30.8192+130.1000/+30.8191+130.1200/+30.8193+130.1400/+30.8195+130.1600/+30.8196+130.1800/+30.8197+130.2000/+30.8198+130.2200/+30.8199+130.2400/+30.8199+130.2600/+30.8199+130.2800/+30.8199+130.3000/+30.8000+130.3199/+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+130.2095/+30.7536+130.2000/+30.7467+130.1800/+30.7451+130.1600/+30.7443+130.1400/+30.7435+130.1200/+30.7435+130.1000/+30.7438+130.0800/+30.7440+130.0600/+30.7434+130.0400/+30.7447+130.0200/+30.7453+130.0000/+30.7400+129.9817/+30.7384+129.9800/+30.7400+129.9661/+30.7403+129.9600/+30.7407+129.9400/+30.7403+129.9200/+30.7421+129.9000/+30.7400+129.8888/+30.7373+129.8800/+30.7386+129.8600/+30.7400+129.8418/+30.7402+129.8400/+30.7426+129.8200/+30.7455+129.8000/+30.7500+129.7800/+30.7541+129.7600/+30.7587+129.7400/+30.7600+129.7351/+30.7631+129.7200/+30.7679+129.7000/+30.7710+129.6800/+30.7747+129.6600/+30.7793+129.6400/+30.7800+129.6376/+30.7858+129.6200/+30.7951+129.6000/+30.8000+129.5901/+30.8053+129.6000/+30.8150+129.6200/+30.8200+129.6349/+30.8214+129.6400/ 西 70 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8138+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.7800+130.2893/+30.7707+130.2800/+30.7800+130.2660/+30.8000+130.2628/+30.8138+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 +30.8208+129.8400/+30.8229+129.8600/+30.8245+129.8800/+30.8200+129.8950/+30.8189+129.9000/+30.8200+129.9137/+30.8208+129.9200/+30.8249+129.9400/+30.8267+129.9600/+30.8275+129.9800/+30.8200+129.9883/+30.8170+130.0000/+30.8175+130.0200/+30.8176+130.0400/+30.8178+130.0600/+30.8184+130.0800/+30.8187+130.1000/+30.8189+130.1200/+30.8192+130.1400/+30.8194+130.1600/+30.8196+130.1800/+30.8197+130.2000/+30.8198+130.2200/+30.8199+130.2400/+30.8199+130.2600/+30.8200+130.2800/+30.8199+130.3000/+30.8004+130.3200/+30.8000+130.3203/+30.7992+130.3200/+30.7800+130.3199/+30.7601+130.3000/+30.7601+130.2800/+30.7601+130.2600/+30.7601+130.2400/+30.7602+130.2200/+30.7602+130.2000/+30.7603+130.1800/+30.7602+130.1600/+30.7601+130.1400/+30.7600+130.1319/+30.7547+130.1200/+30.7488+130.1000/+30.7478+130.0800/+30.7460+130.0600/+30.7458+130.0400/+30.7448+130.0200/+30.7441+130.0000/+30.7400+129.9872/+30.7335+129.9800/+30.7335+129.9600/+30.7338+129.9400/+30.7345+129.9200/+30.7337+129.9000/+30.7302+129.8800/+30.7307+129.8600/+30.7314+129.8400/+30.7319+129.8200/+30.7326+129.8000/+30.7300+129.7800/+30.7348+129.7600/+30.7390+129.7400/+30.7400+129.7330/+30.7436+129.7200/+30.7498+129.7000/+30.7513+129.6800/+30.7533+129.6600/+30.7597+129.6400/+30.7600+129.6395/+30.7605+129.6400/+30.7800+129.6596/+30.7805+129.6600/+30.8000+129.6694/+30.8031+129.6800/+30.8081+129.7000/+30.8109+129.7200/+30.8134+129.7400/+30.8160+129.7600/+30.8186+129.7800/+30.8170+129.8000/+30.8191+129.8200/+30.8200+129.8302/+30.8208+129.8400/ 西 60 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8125+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3119/+30.7681+130.3000/+30.7764+130.2800/+30.7800+130.2742/+30.8000+130.2644/+30.8125+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 +30.8037+129.7200/+30.8072+129.7400/+30.8103+129.7600/+30.8129+129.7800/+30.8108+129.8000/+30.8114+129.8200/+30.8120+129.8400/+30.8150+129.8600/+30.8175+129.8800/+30.8134+129.9000/+30.8153+129.9200/+30.8158+129.9400/+30.8167+129.9600/+30.8177+129.9800/+30.8116+130.0000/+30.8128+130.0200/+30.8146+130.0400/+30.8148+130.0600/+30.8157+130.0800/+30.8171+130.1000/+30.8178+130.1200/+30.8184+130.1400/+30.8190+130.1600/+30.8193+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/+30.8000+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+130.2004/+30.7597+130.2000/+30.7492+130.1800/+30.7457+130.1600/+30.7444+130.1400/+30.7436+130.1200/+30.7429+130.1000/+30.7426+130.0800/+30.7425+130.0600/+30.7418+130.0400/+30.7416+130.0200/+30.7409+130.0000/+30.7400+129.9967/+30.7278+129.9800/+30.7279+129.9600/+30.7281+129.9400/+30.7284+129.9200/+30.7290+129.9000/+30.7274+129.8800/+30.7273+129.8600/+30.7271+129.8400/+30.7284+129.8200/+30.7299+129.8000/+30.7255+129.7800/+30.7294+129.7600/+30.7335+129.7400/+30.7373+129.7200/+30.7400+129.7079/+30.7449+129.7000/+30.7561+129.6800/+30.7600+129.6737/+30.7709+129.6800/+30.7800+129.6860/+30.7978+129.7000/+30.8000+129.7018/+30.8037+129.7200/ 西 60 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8121+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3164/+30.7636+130.3000/+30.7705+130.2800/+30.7800+130.2672/+30.8000+130.2649/+30.8121+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+129.9000/+30.8074+129.9200/+30.8104+129.9400/+30.8131+129.9600/+30.8153+129.9800/+30.8094+130.0000/+30.8115+130.0200/+30.8128+130.0400/+30.8147+130.0600/+30.8158+130.0800/+30.8165+130.1000/+30.8176+130.1200/+30.8183+130.1400/+30.8189+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/+30.8096+130.3200/+30.8000+130.3296/+30.7800+130.3212/+30.7788+130.3200/+30.7601+130.3000/+30.7601+130.2800/+30.7601+130.2600/+30.7601+130.2400/+30.7601+130.2200/+30.7600+130.2006/+30.7595+130.2000/+30.7489+130.1800/+30.7454+130.1600/+30.7440+130.1400/+30.7433+130.1200/+30.7426+130.1000/+30.7420+130.0800/+30.7412+130.0600/+30.7403+130.0400/+30.7400+130.0315/+30.7374+130.0200/+30.7294+130.0000/+30.7251+129.9800/+30.7246+129.9600/+30.7238+129.9400/+30.7225+129.9200/+30.7202+129.9000/+30.7200+129.8990/+30.7092+129.8800/+30.7085+129.8600/+30.7077+129.8400/+30.7059+129.8200/+30.7041+129.8000/+30.7125+129.7800/+30.7173+129.7600/+30.7200+129.7496/+30.7234+129.7400/+30.7323+129.7200/+30.7400+129.7109/+30.7539+129.7200/+30.7600+129.7236/+30.7665+129.7400/+30.7736+129.7600/+30.7796+129.7800/+30.7800+129.7809/+30.7855+129.8000/+30.7895+129.8200/+30.7922+129.8400/+30.7948+129.8600/+30.7969+129.8800/+30.8000+129.8913/+30.8031+129.9000/ 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+130.3160/+30.7640+130.3000/+30.7746+130.2800/+30.7800+130.2718/+30.8000+130.2658/+30.8116+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 +30.8241+129.9200/+30.8268+129.9400/+30.8287+129.9600/+30.8302+129.9800/+30.8263+130.0000/+30.8240+130.0200/+30.8248+130.0400/+30.8273+130.0600/+30.8251+130.0800/+30.8261+130.1000/+30.8238+130.1200/+30.8256+130.1400/+30.8200+130.1564/+30.8199+130.1600/+30.8198+130.1800/+30.8197+130.2000/+30.8198+130.2200/+30.8199+130.2400/+30.8199+130.2600/+30.8200+130.2800/+30.8200+130.3000/+30.8167+130.3200/+30.8000+130.3367/+30.7800+130.3331/+30.7669+130.3200/+30.7601+130.3000/+30.7600+130.2800/+30.7601+130.2600/+30.7600+130.2454/+30.7554+130.2400/+30.7465+130.2200/+30.7448+130.2000/+30.7443+130.1800/+30.7444+130.1600/+30.7444+130.1400/+30.7439+130.1200/+30.7435+130.1000/+30.7434+130.0800/+30.7436+130.0600/+30.7444+130.0400/+30.7420+130.0200/+30.7419+130.0000/+30.7400+129.9903/+30.7351+129.9800/+30.7382+129.9600/+30.7400+129.9495/+30.7418+129.9400/+30.7469+129.9200/+30.7467+129.9000/+30.7492+129.8800/+30.7535+129.8600/+30.7588+129.8400/+30.7600+129.8382/+30.7624+129.8400/+30.7784+129.8600/+30.7800+129.8615/+30.8000+129.8766/+30.8017+129.8800/+30.8156+129.9000/+30.8200+129.9076/+30.8241+129.9200/ 西 40 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8064+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3124/+30.7676+130.3000/+30.7800+130.2813/+30.7839+130.2800/+30.8000+130.2724/+30.8064+130.2800/ 西 3 鹿児島県三島村 4630300 2026-10-04T06:00:00+09:00 2026-10-04T09:00:00+09:00 降灰 70 +30.8202+129.8800/+30.8283+129.9000/+30.8307+129.9200/+30.8331+129.9400/+30.8346+129.9600/+30.8358+129.9800/+30.8336+130.0000/+30.8265+130.0200/+30.8253+130.0400/+30.8250+130.0600/+30.8252+130.0800/+30.8210+130.1000/+30.8219+130.1200/+30.8200+130.1247/+30.8194+130.1400/+30.8191+130.1600/+30.8193+130.1800/+30.8194+130.2000/+30.8195+130.2200/+30.8197+130.2400/+30.8199+130.2600/+30.8200+130.2800/+30.8200+130.3000/+30.8157+130.3200/+30.8000+130.3357/+30.7800+130.3319/+30.7681+130.3200/+30.7601+130.3000/+30.7600+130.2800/+30.7600+130.2735/+30.7469+130.2600/+30.7421+130.2400/+30.7415+130.2200/+30.7410+130.2000/+30.7406+130.1800/+30.7400+130.1642/+30.7381+130.1600/+30.7345+130.1400/+30.7324+130.1200/+30.7392+130.1000/+30.7319+130.0800/+30.7359+130.0600/+30.7400+130.0432/+30.7403+130.0400/+30.7409+130.0200/+30.7447+130.0000/+30.7400+129.9813/+30.7392+129.9800/+30.7400+129.9767/+30.7434+129.9600/+30.7494+129.9400/+30.7568+129.9200/+30.7600+129.9041/+30.7607+129.9000/+30.7720+129.8800/+30.7800+129.8673/+30.7852+129.8600/+30.8000+129.8423/+30.8117+129.8600/+30.8200+129.8794/+30.8202+129.8800/ 西 40 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+130.3038/+30.7762+130.3000/+30.7800+130.2856/+30.7828+130.2800/+30.8000+130.2715/+30.8071+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１５時から４日９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　　　　　 　０４日０６時から０９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。