2026-10-03T08:00:00Z 通常 気象庁本庁 気象庁 2026-10-03T17:00:00+09:00 2026-10-03T18:00:00+09:00 2026-10-04T12:00:00+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、４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 2026-10-03T18:00:00+09:00 2026-10-03T21:00:00+09:00 降灰 70 +30.8214+129.7200/+30.8252+129.7400/+30.8275+129.7600/+30.8287+129.7800/+30.8261+129.8000/+30.8275+129.8200/+30.8287+129.8400/+30.8300+129.8600/+30.8309+129.8800/+30.8285+129.9000/+30.8296+129.9200/+30.8311+129.9400/+30.8320+129.9600/+30.8325+129.9800/+30.8200+129.9957/+30.8189+130.0000/+30.8192+130.0200/+30.8191+130.0400/+30.8190+130.0600/+30.8191+130.0800/+30.8191+130.1000/+30.8193+130.1200/+30.8194+130.1400/+30.8195+130.1600/+30.8197+130.1800/+30.8198+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/+30.7602+130.3000/+30.7601+130.2800/+30.7601+130.2600/+30.7601+130.2400/+30.7602+130.2200/+30.7603+130.2000/+30.7603+130.1800/+30.7604+130.1600/+30.7605+130.1400/+30.7604+130.1200/+30.7604+130.1000/+30.7604+130.0800/+30.7600+130.0609/+30.7596+130.0600/+30.7581+130.0400/+30.7547+130.0200/+30.7521+130.0000/+30.7429+129.9800/+30.7434+129.9600/+30.7440+129.9400/+30.7447+129.9200/+30.7444+129.9000/+30.7400+129.8865/+30.7367+129.8800/+30.7380+129.8600/+30.7396+129.8400/+30.7400+129.8327/+30.7408+129.8200/+30.7422+129.8000/+30.7454+129.7800/+30.7490+129.7600/+30.7531+129.7400/+30.7582+129.7200/+30.7600+129.7139/+30.7657+129.7000/+30.7731+129.6800/+30.7800+129.6641/+30.7819+129.6600/+30.7939+129.6400/+30.8000+129.6319/+30.8032+129.6400/+30.8091+129.6600/+30.8132+129.6800/+30.8164+129.7000/+30.8200+129.7139/+30.8214+129.7200/ 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/+30.7825+130.2800/+30.8000+130.2633/+30.8130+130.2800/ 北西 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 +30.8214+129.7000/+30.8246+129.7200/+30.8269+129.7400/+30.8285+129.7600/+30.8297+129.7800/+30.8267+129.8000/+30.8277+129.8200/+30.8286+129.8400/+30.8293+129.8600/+30.8299+129.8800/+30.8270+129.9000/+30.8280+129.9200/+30.8302+129.9400/+30.8315+129.9600/+30.8322+129.9800/+30.8200+129.9947/+30.8185+130.0000/+30.8184+130.0200/+30.8184+130.0400/+30.8185+130.0600/+30.8186+130.0800/+30.8189+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/+30.8200+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/+30.7602+130.2200/+30.7602+130.2000/+30.7603+130.1800/+30.7604+130.1600/+30.7604+130.1400/+30.7603+130.1200/+30.7602+130.1000/+30.7600+130.0890/+30.7571+130.0800/+30.7552+130.0600/+30.7550+130.0400/+30.7505+130.0200/+30.7510+130.0000/+30.7427+129.9800/+30.7426+129.9600/+30.7429+129.9400/+30.7439+129.9200/+30.7440+129.9000/+30.7400+129.8869/+30.7366+129.8800/+30.7382+129.8600/+30.7400+129.8412/+30.7401+129.8400/+30.7413+129.8200/+30.7426+129.8000/+30.7474+129.7800/+30.7527+129.7600/+30.7588+129.7400/+30.7600+129.7365/+30.7653+129.7200/+30.7726+129.7000/+30.7748+129.6800/+30.7774+129.6600/+30.7800+129.6483/+30.7820+129.6400/+30.7898+129.6200/+30.8000+129.6004/+30.8079+129.6200/+30.8138+129.6400/+30.8174+129.6600/+30.8196+129.6800/+30.8200+129.6844/+30.8214+129.7000/ 西 70 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+130.3091/+30.7709+130.3000/+30.7764+130.2800/+30.7800+130.2745/+30.8000+130.2643/+30.8126+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 +30.8241+129.7000/+30.8282+129.7200/+30.8312+129.7400/+30.8338+129.7600/+30.8360+129.7800/+30.8378+129.8000/+30.8380+129.8200/+30.8381+129.8400/+30.8386+129.8600/+30.8389+129.8800/+30.8376+129.9000/+30.8386+129.9200/+30.8384+129.9400/+30.8381+129.9600/+30.8378+129.9800/+30.8351+130.0000/+30.8347+130.0200/+30.8339+130.0400/+30.8335+130.0600/+30.8324+130.0800/+30.8303+130.1000/+30.8285+130.1200/+30.8253+130.1400/+30.8200+130.1566/+30.8200+130.1600/+30.8199+130.1800/+30.8198+130.2000/+30.8199+130.2200/+30.8199+130.2400/+30.8199+130.2600/+30.8200+130.2800/+30.8199+130.3000/+30.8071+130.3200/+30.8000+130.3271/+30.7855+130.3200/+30.7800+130.3200/+30.7601+130.3000/+30.7601+130.2800/+30.7601+130.2600/+30.7602+130.2400/+30.7603+130.2200/+30.7604+130.2000/+30.7606+130.1800/+30.7608+130.1600/+30.7611+130.1400/+30.7614+130.1200/+30.7618+130.1000/+30.7623+130.0800/+30.7626+130.0600/+30.7630+130.0400/+30.7637+130.0200/+30.7642+130.0000/+30.7600+129.9891/+30.7511+129.9800/+30.7532+129.9600/+30.7557+129.9400/+30.7585+129.9200/+30.7600+129.9050/+30.7603+129.9000/+30.7635+129.8800/+30.7649+129.8600/+30.7666+129.8400/+30.7688+129.8200/+30.7715+129.8000/+30.7714+129.7800/+30.7744+129.7600/+30.7775+129.7400/+30.7800+129.7242/+30.7807+129.7200/+30.7846+129.7000/+30.7900+129.6800/+30.7971+129.6600/+30.8000+129.6517/+30.8055+129.6600/+30.8169+129.6800/+30.8200+129.6876/+30.8241+129.7000/ 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/+30.7812+130.3000/+30.7825+130.2800/+30.8000+130.2638/+30.8133+130.2800/ 北西 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 +30.8237+129.9200/+30.8263+129.9400/+30.8278+129.9600/+30.8285+129.9800/+30.8200+129.9935/+30.8183+130.0000/+30.8187+130.0200/+30.8188+130.0400/+30.8189+130.0600/+30.8190+130.0800/+30.8194+130.1000/+30.8194+130.1200/+30.8195+130.1400/+30.8196+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/+30.8200+130.3000/+30.8172+130.3200/+30.8000+130.3372/+30.7800+130.3343/+30.7657+130.3200/+30.7601+130.3000/+30.7601+130.2800/+30.7601+130.2600/+30.7601+130.2400/+30.7600+130.2209/+30.7593+130.2200/+30.7510+130.2000/+30.7476+130.1800/+30.7459+130.1600/+30.7455+130.1400/+30.7444+130.1200/+30.7445+130.1000/+30.7447+130.0800/+30.7448+130.0600/+30.7439+130.0400/+30.7441+130.0200/+30.7441+130.0000/+30.7400+129.9862/+30.7357+129.9800/+30.7360+129.9600/+30.7377+129.9400/+30.7400+129.9278/+30.7415+129.9200/+30.7450+129.9000/+30.7469+129.8800/+30.7521+129.8600/+30.7594+129.8400/+30.7600+129.8377/+30.7800+129.8396/+30.7837+129.8400/+30.8000+129.8407/+30.8087+129.8600/+30.8146+129.8800/+30.8179+129.9000/+30.8200+129.9060/+30.8237+129.9200/ 西 40 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8054+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3103/+30.7697+130.3000/+30.7800+130.2847/+30.7893+130.2800/+30.8000+130.2732/+30.8054+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 +30.8243+129.8800/+30.8309+129.9000/+30.8328+129.9200/+30.8350+129.9400/+30.8356+129.9600/+30.8356+129.9800/+30.8335+130.0000/+30.8316+130.0200/+30.8308+130.0400/+30.8305+130.0600/+30.8305+130.0800/+30.8294+130.1000/+30.8275+130.1200/+30.8264+130.1400/+30.8237+130.1600/+30.8200+130.1695/+30.8199+130.1800/+30.8198+130.2000/+30.8198+130.2200/+30.8199+130.2400/+30.8199+130.2600/+30.8200+130.2800/+30.8200+130.3000/+30.8163+130.3200/+30.8000+130.3363/+30.7800+130.3323/+30.7677+130.3200/+30.7601+130.3000/+30.7601+130.2800/+30.7601+130.2600/+30.7600+130.2400/+30.7600+130.2381/+30.7479+130.2200/+30.7449+130.2000/+30.7444+130.1800/+30.7439+130.1600/+30.7442+130.1400/+30.7445+130.1200/+30.7440+130.1000/+30.7456+130.0800/+30.7449+130.0600/+30.7458+130.0400/+30.7452+130.0200/+30.7485+130.0000/+30.7425+129.9800/+30.7443+129.9600/+30.7475+129.9400/+30.7527+129.9200/+30.7589+129.9000/+30.7600+129.8950/+30.7663+129.8800/+30.7740+129.8600/+30.7800+129.8523/+30.8000+129.8407/+30.8145+129.8600/+30.8200+129.8702/+30.8243+129.8800/ 西 40 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8085+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3011/+30.7789+130.3000/+30.7800+130.2960/+30.7849+130.2800/+30.8000+130.2701/+30.8085+130.2800/ 西 3 鹿児島県三島村 4630300 2026-10-04T09:00:00+09:00 2026-10-04T12:00:00+09:00 降灰 70 +30.8205+129.9200/+30.8216+129.9400/+30.8236+129.9600/+30.8265+129.9800/+30.8215+130.0000/+30.8200+130.0034/+30.8164+130.0200/+30.8171+130.0400/+30.8165+130.0600/+30.8166+130.0800/+30.8172+130.1000/+30.8164+130.1200/+30.8156+130.1400/+30.8165+130.1600/+30.8171+130.1800/+30.8177+130.2000/+30.8186+130.2200/+30.8194+130.2400/+30.8198+130.2600/+30.8199+130.2800/+30.8199+130.3000/+30.8131+130.3200/+30.8000+130.3331/+30.7800+130.3282/+30.7718+130.3200/+30.7601+130.3000/+30.7600+130.2800/+30.7600+130.2778/+30.7430+130.2600/+30.7409+130.2400/+30.7406+130.2200/+30.7402+130.2000/+30.7400+130.1949/+30.7307+130.1800/+30.7258+130.1600/+30.7239+130.1400/+30.7228+130.1200/+30.7218+130.1000/+30.7218+130.0800/+30.7206+130.0600/+30.7200+130.0520/+30.7167+130.0400/+30.7148+130.0200/+30.7102+130.0000/+30.7118+129.9800/+30.7139+129.9600/+30.7177+129.9400/+30.7200+129.9330/+30.7249+129.9200/+30.7310+129.9000/+30.7400+129.8815/+30.7410+129.8800/+30.7555+129.8600/+30.7600+129.8551/+30.7800+129.8560/+30.8000+129.8571/+30.8020+129.8600/+30.8126+129.8800/+30.8174+129.9000/+30.8200+129.9158/+30.8205+129.9200/ 西 40 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8084+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3109/+30.7691+130.3000/+30.7752+130.2800/+30.7800+130.2739/+30.8000+130.2698/+30.8084+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、４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１８時から４日１２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１８時から２１時まで　西　　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　０３日２１時から２４時まで　西　　　　　　　７０ｋｍ　　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　　　　　 　０４日０９時から１２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。