2026-08-03T02:00:00Z 通常 気象庁本庁 気象庁 2026-08-03T11:00:00+09:00 2026-08-03T12:00:00+09:00 2026-08-04T06:00:00+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 2026-08-03T12:00:00+09:00 2026-08-03T15:00:00+09:00 降灰 70 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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+130.3184/+30.7616+130.3000/+30.7665+130.2800/+30.7800+130.2634/+30.8000+130.2669/+30.8116+130.2800/ 西 3 鹿児島県三島村 4630300 2026-08-03T15:00:00+09:00 2026-08-03T18:00:00+09:00 降灰 70 +30.8169+130.2400/+30.8196+130.2600/+30.8199+130.2800/+30.8198+130.3000/+30.8000+130.3199/+30.7800+130.3199/+30.7601+130.3000/+30.7600+130.2928/+30.7473+130.2800/+30.7407+130.2600/+30.7402+130.2400/+30.7400+130.2200/+30.7400+130.2193/+30.7226+130.2000/+30.7209+130.1800/+30.7201+130.1600/+30.7200+130.1594/+30.7044+130.1400/+30.7018+130.1200/+30.7003+130.1000/+30.7000+130.0984/+30.6863+130.0800/+30.6834+130.0600/+30.6805+130.0400/+30.6800+130.0386/+30.6643+130.0200/+30.6620+130.0000/+30.6600+129.9873/+30.6545+129.9800/+30.6433+129.9600/+30.6400+129.9485/+30.6366+129.9400/+30.6259+129.9200/+30.6204+129.9000/+30.6200+129.8983/+30.6165+129.8800/+30.6123+129.8600/+30.6086+129.8400/+30.6045+129.8200/+30.6000+129.8061/+30.5966+129.8000/+30.5901+129.7800/+30.5844+129.7600/+30.5808+129.7400/+30.5800+129.7321/+30.5785+129.7200/+30.5755+129.7000/+30.5767+129.6800/+30.5800+129.6603/+30.5801+129.6600/+30.6000+129.6430/+30.6105+129.6600/+30.6200+129.6738/+30.6244+129.6800/+30.6388+129.7000/+30.6400+129.7014/+30.6548+129.7200/+30.6600+129.7260/+30.6669+129.7400/+30.6772+129.7600/+30.6800+129.7650/+30.6875+129.7800/+30.6983+129.8000/+30.7000+129.8029/+30.7076+129.8200/+30.7135+129.8400/+30.7200+129.8568/+30.7226+129.8600/+30.7339+129.8800/+30.7375+129.9000/+30.7400+129.9087/+30.7440+129.9200/+30.7519+129.9400/+30.7571+129.9600/+30.7600+129.9737/+30.7619+129.9800/+30.7606+130.0000/+30.7645+130.0200/+30.7722+130.0400/+30.7759+130.0600/+30.7782+130.0800/+30.7798+130.1000/+30.7800+130.1044/+30.7866+130.1200/+30.7937+130.1400/+30.7976+130.1600/+30.7990+130.1800/+30.7997+130.2000/+30.7999+130.2200/+30.8000+130.2214/+30.8169+130.2400/ 西 70 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8105+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3187/+30.7613+130.3000/+30.7655+130.2800/+30.7800+130.2614/+30.8000+130.2695/+30.8105+130.2800/ 西 3 鹿児島県三島村 4630300 2026-08-03T18:00:00+09:00 2026-08-03T21:00:00+09:00 降灰 70 +30.8092+130.2400/+30.8196+130.2600/+30.8199+130.2800/+30.8199+130.3000/+30.8000+130.3200/+30.7800+130.3199/+30.7601+130.3000/+30.7600+130.2800/+30.7600+130.2789/+30.7414+130.2600/+30.7403+130.2400/+30.7402+130.2200/+30.7400+130.2131/+30.7274+130.2000/+30.7214+130.1800/+30.7205+130.1600/+30.7200+130.1494/+30.7116+130.1400/+30.7032+130.1200/+30.7010+130.1000/+30.7000+130.0903/+30.6915+130.0800/+30.6841+130.0600/+30.6814+130.0400/+30.6800+130.0368/+30.6641+130.0200/+30.6618+130.0000/+30.6600+129.9889/+30.6526+129.9800/+30.6437+129.9600/+30.6400+129.9478/+30.6368+129.9400/+30.6261+129.9200/+30.6200+129.9038/+30.6189+129.9000/+30.6145+129.8800/+30.6104+129.8600/+30.6069+129.8400/+30.6011+129.8200/+30.6000+129.8175/+30.5907+129.8000/+30.5855+129.7800/+30.5811+129.7600/+30.5800+129.7518/+30.5783+129.7400/+30.5760+129.7200/+30.5725+129.7000/+30.5718+129.6800/+30.5613+129.6600/+30.5600+129.6592/+30.5546+129.6400/+30.5578+129.6200/+30.5600+129.6129/+30.5611+129.6200/+30.5677+129.6400/+30.5800+129.6547/+30.6000+129.6556/+30.6024+129.6600/+30.6121+129.6800/+30.6193+129.7000/+30.6200+129.7031/+30.6244+129.7200/+30.6313+129.7400/+30.6400+129.7516/+30.6480+129.7600/+30.6600+129.7686/+30.6682+129.7800/+30.6703+129.8000/+30.6764+129.8200/+30.6800+129.8298/+30.6872+129.8400/+30.7000+129.8588/+30.7005+129.8600/+30.7066+129.8800/+30.7110+129.9000/+30.7146+129.9200/+30.7187+129.9400/+30.7200+129.9446/+30.7325+129.9600/+30.7400+129.9784/+30.7407+129.9800/+30.7400+129.9810/+30.7374+130.0000/+30.7398+130.0200/+30.7400+130.0206/+30.7534+130.0400/+30.7575+130.0600/+30.7593+130.0800/+30.7600+130.0855/+30.7716+130.1000/+30.7779+130.1200/+30.7793+130.1400/+30.7800+130.1588/+30.7811+130.1600/+30.7977+130.1800/+30.7995+130.2000/+30.7998+130.2200/+30.8000+130.2308/+30.8092+130.2400/ 西 70 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8139+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3187/+30.7613+130.3000/+30.7650+130.2800/+30.7800+130.2611/+30.8000+130.2661/+30.8139+130.2800/ 西 3 鹿児島県三島村 4630300 2026-08-03T21:00:00+09:00 2026-08-04T00:00:00+09:00 降灰 70 +30.8171+130.2400/+30.8197+130.2600/+30.8199+130.2800/+30.8199+130.3000/+30.8121+130.3200/+30.8000+130.3321/+30.7800+130.3265/+30.7735+130.3200/+30.7601+130.3000/+30.7600+130.2800/+30.7600+130.2793/+30.7411+130.2600/+30.7403+130.2400/+30.7402+130.2200/+30.7400+130.2136/+30.7276+130.2000/+30.7219+130.1800/+30.7208+130.1600/+30.7200+130.1458/+30.7149+130.1400/+30.7045+130.1200/+30.7020+130.1000/+30.7000+130.0806/+30.6995+130.0800/+30.6888+130.0600/+30.6845+130.0400/+30.6800+130.0312/+30.6696+130.0200/+30.6664+130.0000/+30.6643+129.9800/+30.6628+129.9600/+30.6607+129.9400/+30.6600+129.9351/+30.6534+129.9200/+30.6450+129.9000/+30.6420+129.8800/+30.6400+129.8697/+30.6350+129.8600/+30.6275+129.8400/+30.6220+129.8200/+30.6201+129.8000/+30.6200+129.7988/+30.6189+129.7800/+30.6170+129.7600/+30.6162+129.7400/+30.6188+129.7200/+30.6200+129.7150/+30.6288+129.7000/+30.6400+129.6949/+30.6458+129.7000/+30.6600+129.7110/+30.6642+129.7200/+30.6724+129.7400/+30.6800+129.7594/+30.6802+129.7600/+30.6891+129.7800/+30.7000+129.7956/+30.7016+129.8000/+30.7072+129.8200/+30.7113+129.8400/+30.7176+129.8600/+30.7200+129.8680/+30.7271+129.8800/+30.7304+129.9000/+30.7371+129.9200/+30.7400+129.9277/+30.7455+129.9400/+30.7520+129.9600/+30.7560+129.9800/+30.7543+130.0000/+30.7574+130.0200/+30.7595+130.0400/+30.7600+130.0446/+30.7680+130.0600/+30.7756+130.0800/+30.7779+130.1000/+30.7797+130.1200/+30.7800+130.1237/+30.7900+130.1400/+30.7965+130.1600/+30.7989+130.1800/+30.7997+130.2000/+30.8000+130.2200/+30.8000+130.2207/+30.8171+130.2400/ 西 60 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8147+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3158/+30.7642+130.3000/+30.7669+130.2800/+30.7800+130.2628/+30.8000+130.2651/+30.8147+130.2800/ 西 3 鹿児島県三島村 4630300 2026-08-04T00:00:00+09:00 2026-08-04T03:00:00+09:00 降灰 70 +30.8036+130.1600/+30.8136+130.1800/+30.8177+130.2000/+30.8192+130.2200/+30.8197+130.2400/+30.8199+130.2600/+30.8199+130.2800/+30.8199+130.3000/+30.8028+130.3200/+30.8000+130.3228/+30.7933+130.3200/+30.7800+130.3200/+30.7601+130.3000/+30.7600+130.2800/+30.7600+130.2600/+30.7600+130.2584/+30.7440+130.2400/+30.7417+130.2200/+30.7410+130.2000/+30.7407+130.1800/+30.7404+130.1600/+30.7400+130.1400/+30.7400+130.1389/+30.7301+130.1200/+30.7265+130.1000/+30.7244+130.0800/+30.7227+130.0600/+30.7218+130.0400/+30.7211+130.0200/+30.7200+130.0133/+30.7054+130.0000/+30.7011+129.9800/+30.7000+129.9727/+30.6971+129.9600/+30.6943+129.9400/+30.6924+129.9200/+30.6883+129.9000/+30.6874+129.8800/+30.6858+129.8600/+30.6838+129.8400/+30.6807+129.8200/+30.6800+129.8164/+30.6736+129.8000/+30.6691+129.7800/+30.6686+129.7600/+30.6687+129.7400/+30.6695+129.7200/+30.6707+129.7000/+30.6725+129.6800/+30.6760+129.6600/+30.6800+129.6507/+30.6878+129.6400/+30.7000+129.6317/+30.7041+129.6400/+30.7120+129.6600/+30.7184+129.6800/+30.7200+129.6854/+30.7239+129.7000/+30.7303+129.7200/+30.7363+129.7400/+30.7400+129.7509/+30.7437+129.7600/+30.7525+129.7800/+30.7531+129.8000/+30.7576+129.8200/+30.7600+129.8314/+30.7637+129.8400/+30.7732+129.8600/+30.7788+129.8800/+30.7743+129.9000/+30.7765+129.9200/+30.7791+129.9400/+30.7800+129.9506/+30.7842+129.9600/+30.7902+129.9800/+30.7821+130.0000/+30.7881+130.0200/+30.7930+130.0400/+30.7961+130.0600/+30.7978+130.0800/+30.7987+130.1000/+30.7993+130.1200/+30.7997+130.1400/+30.8000+130.1539/+30.8036+130.1600/ 西 60 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8154+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3148/+30.7652+130.3000/+30.7671+130.2800/+30.7800+130.2624/+30.8000+130.2612/+30.8154+130.2800/ 西 3 鹿児島県三島村 4630300 2026-08-04T03:00:00+09:00 2026-08-04T06:00:00+09:00 降灰 70 +30.8033+130.2400/+30.8188+130.2600/+30.8199+130.2800/+30.8199+130.3000/+30.8150+130.3200/+30.8000+130.3350/+30.7800+130.3315/+30.7685+130.3200/+30.7601+130.3000/+30.7600+130.2979/+30.7421+130.2800/+30.7402+130.2600/+30.7400+130.2400/+30.7217+130.2200/+30.7205+130.2000/+30.7200+130.1925/+30.7087+130.1800/+30.7022+130.1600/+30.7004+130.1400/+30.7000+130.1366/+30.6885+130.1200/+30.6831+130.1000/+30.6800+130.0800/+30.6688+130.0600/+30.6645+130.0400/+30.6600+130.0254/+30.6537+130.0200/+30.6438+130.0000/+30.6400+129.9869/+30.6374+129.9800/+30.6335+129.9600/+30.6291+129.9400/+30.6200+129.9225/+30.6183+129.9200/+30.6140+129.9000/+30.6098+129.8800/+30.6059+129.8600/+30.6002+129.8400/+30.6000+129.8391/+30.5934+129.8200/+30.5884+129.8000/+30.5892+129.7800/+30.5902+129.7600/+30.5920+129.7400/+30.5954+129.7200/+30.6000+129.7036/+30.6063+129.7200/+30.6167+129.7400/+30.6200+129.7444/+30.6384+129.7600/+30.6400+129.7607/+30.6600+129.7772/+30.6618+129.7800/+30.6677+129.8000/+30.6737+129.8200/+30.6800+129.8394/+30.6803+129.8400/+30.6946+129.8600/+30.7000+129.8745/+30.7015+129.8800/+30.7078+129.9000/+30.7114+129.9200/+30.7171+129.9400/+30.7200+129.9517/+30.7264+129.9600/+30.7363+129.9800/+30.7360+130.0000/+30.7377+130.0200/+30.7400+130.0353/+30.7429+130.0400/+30.7528+130.0600/+30.7577+130.0800/+30.7597+130.1000/+30.7600+130.1017/+30.7731+130.1200/+30.7789+130.1400/+30.7800+130.1532/+30.7828+130.1600/+30.7933+130.1800/+30.7982+130.2000/+30.7998+130.2200/+30.8000+130.2335/+30.8033+130.2400/ 西 60 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8139+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3172/+30.7628+130.3000/+30.7668+130.2800/+30.7800+130.2639/+30.8000+130.2660/+30.8139+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　　　　　　　７０ｋｍ　　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　　　　　　　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。