2026-08-02T23:00:00Z 通常 気象庁本庁 気象庁 2026-08-03T08:00:00+09:00 2026-08-03T09:00:00+09:00 2026-08-04T03:00:00+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 2026-08-03T09:00:00+09:00 2026-08-03T12:00:00+09:00 降灰 70 +30.8115+130.2000/+30.8171+130.2200/+30.8192+130.2400/+30.8198+130.2600/+30.8199+130.2800/+30.8199+130.3000/+30.8155+130.3200/+30.8000+130.3355/+30.7800+130.3333/+30.7667+130.3200/+30.7601+130.3000/+30.7600+130.2897/+30.7502+130.2800/+30.7409+130.2600/+30.7402+130.2400/+30.7400+130.2366/+30.7255+130.2200/+30.7216+130.2000/+30.7200+130.1887/+30.7125+130.1800/+30.7037+130.1600/+30.7008+130.1400/+30.7000+130.1366/+30.6879+130.1200/+30.6830+130.1000/+30.6800+130.0924/+30.6704+130.0800/+30.6655+130.0600/+30.6600+130.0418/+30.6585+130.0400/+30.6468+130.0200/+30.6400+130.0033/+30.6383+130.0000/+30.6286+129.9800/+30.6229+129.9600/+30.6200+129.9455/+30.6188+129.9400/+30.6166+129.9200/+30.6139+129.9000/+30.6073+129.8800/+30.6193+129.8600/+30.6200+129.8594/+30.6400+129.8506/+30.6503+129.8600/+30.6600+129.8694/+30.6701+129.8800/+30.6800+129.8872/+30.6906+129.9000/+30.7000+129.9169/+30.7013+129.9200/+30.7150+129.9400/+30.7200+129.9469/+30.7291+129.9600/+30.7390+129.9800/+30.7400+129.9827/+30.7468+130.0000/+30.7549+130.0200/+30.7600+130.0328/+30.7647+130.0400/+30.7725+130.0600/+30.7777+130.0800/+30.7800+130.0915/+30.7848+130.1000/+30.7931+130.1200/+30.7967+130.1400/+30.7987+130.1600/+30.7997+130.1800/+30.8000+130.1844/+30.8115+130.2000/ 西 50 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8091+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3172/+30.7628+130.3000/+30.7714+130.2800/+30.7800+130.2679/+30.8000+130.2691/+30.8091+130.2800/ 西 3 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 +30.8054+129.9400/+30.8093+129.9600/+30.8119+129.9800/+30.8014+130.0000/+30.8000+130.0098/+30.7998+130.0200/+30.8000+130.0246/+30.8040+130.0400/+30.8015+130.0600/+30.8033+130.0800/+30.8072+130.1000/+30.8105+130.1200/+30.8113+130.1400/+30.8143+130.1600/+30.8169+130.1800/+30.8184+130.2000/+30.8193+130.2200/+30.8197+130.2400/+30.8199+130.2600/+30.8199+130.2800/+30.8199+130.3000/+30.8034+130.3200/+30.8000+130.3234/+30.7911+130.3200/+30.7800+130.3200/+30.7601+130.3000/+30.7601+130.2800/+30.7600+130.2600/+30.7600+130.2584/+30.7434+130.2400/+30.7413+130.2200/+30.7408+130.2000/+30.7406+130.1800/+30.7401+130.1600/+30.7400+130.1573/+30.7307+130.1400/+30.7260+130.1200/+30.7245+130.1000/+30.7230+130.0800/+30.7221+130.0600/+30.7203+130.0400/+30.7200+130.0372/+30.7135+130.0200/+30.7038+130.0000/+30.7017+129.9800/+30.7000+129.9622/+30.6996+129.9600/+30.6980+129.9400/+30.6981+129.9200/+30.6929+129.9000/+30.6921+129.8800/+30.6912+129.8600/+30.6901+129.8400/+30.6898+129.8200/+30.6893+129.8000/+30.6882+129.7800/+30.6916+129.7600/+30.6958+129.7400/+30.7000+129.7246/+30.7067+129.7200/+30.7200+129.7124/+30.7400+129.7037/+30.7557+129.7200/+30.7600+129.7249/+30.7648+129.7400/+30.7705+129.7600/+30.7755+129.7800/+30.7790+129.8000/+30.7800+129.8032/+30.7840+129.8200/+30.7872+129.8400/+30.7901+129.8600/+30.7923+129.8800/+30.7959+129.9000/+30.7998+129.9200/+30.8000+129.9211/+30.8054+129.9400/ 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+130.3180/+30.7620+130.3000/+30.7662+130.2800/+30.7800+130.2628/+30.8000+130.2660/+30.8121+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 +30.8038+130.2000/+30.8156+130.2200/+30.8191+130.2400/+30.8198+130.2600/+30.8199+130.2800/+30.8199+130.3000/+30.8000+130.3199/+30.7800+130.3199/+30.7601+130.3000/+30.7600+130.2800/+30.7600+130.2776/+30.7431+130.2600/+30.7405+130.2400/+30.7403+130.2200/+30.7401+130.2000/+30.7400+130.1984/+30.7244+130.1800/+30.7215+130.1600/+30.7206+130.1400/+30.7200+130.1297/+30.7125+130.1200/+30.7051+130.1000/+30.7026+130.0800/+30.7007+130.0600/+30.7000+130.0559/+30.6891+130.0400/+30.6800+130.0228/+30.6773+130.0200/+30.6714+130.0000/+30.6677+129.9800/+30.6659+129.9600/+30.6640+129.9400/+30.6616+129.9200/+30.6600+129.9157/+30.6505+129.9000/+30.6482+129.8800/+30.6440+129.8600/+30.6400+129.8438/+30.6381+129.8400/+30.6329+129.8200/+30.6273+129.8000/+30.6261+129.7800/+30.6248+129.7600/+30.6243+129.7400/+30.6254+129.7200/+30.6279+129.7000/+30.6315+129.6800/+30.6390+129.6600/+30.6400+129.6591/+30.6419+129.6600/+30.6600+129.6715/+30.6634+129.6800/+30.6713+129.7000/+30.6800+129.7087/+30.6928+129.7200/+30.7000+129.7256/+30.7092+129.7400/+30.7194+129.7600/+30.7200+129.7613/+30.7279+129.7800/+30.7329+129.8000/+30.7400+129.8162/+30.7413+129.8200/+30.7470+129.8400/+30.7537+129.8600/+30.7592+129.8800/+30.7600+129.8825/+30.7654+129.9000/+30.7688+129.9200/+30.7726+129.9400/+30.7757+129.9600/+30.7779+129.9800/+30.7783+130.0000/+30.7800+130.0107/+30.7834+130.0200/+30.7880+130.0400/+30.7881+130.0600/+30.7922+130.0800/+30.7951+130.1000/+30.7971+130.1200/+30.7984+130.1400/+30.7992+130.1600/+30.7997+130.1800/+30.8000+130.1942/+30.8038+130.2000/ 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+130.3186/+30.7614+130.3000/+30.7650+130.2800/+30.7800+130.2606/+30.8000+130.2672/+30.8121+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 +30.8174+130.2400/+30.8198+130.2600/+30.8199+130.2800/+30.8199+130.3000/+30.8000+130.3199/+30.7800+130.3199/+30.7601+130.3000/+30.7600+130.2800/+30.7600+130.2747/+30.7453+130.2600/+30.7405+130.2400/+30.7403+130.2200/+30.7402+130.2000/+30.7400+130.1925/+30.7286+130.1800/+30.7221+130.1600/+30.7209+130.1400/+30.7204+130.1200/+30.7200+130.1140/+30.7086+130.1000/+30.7035+130.0800/+30.7018+130.0600/+30.7009+130.0400/+30.7000+130.0321/+30.6870+130.0200/+30.6800+130.0030/+30.6786+130.0000/+30.6722+129.9800/+30.6687+129.9600/+30.6665+129.9400/+30.6648+129.9200/+30.6600+129.9095/+30.6512+129.9000/+30.6500+129.8800/+30.6489+129.8600/+30.6477+129.8400/+30.6462+129.8200/+30.6400+129.8076/+30.6317+129.8000/+30.6287+129.7800/+30.6260+129.7600/+30.6241+129.7400/+30.6228+129.7200/+30.6212+129.7000/+30.6223+129.6800/+30.6242+129.6600/+30.6280+129.6400/+30.6393+129.6200/+30.6400+129.6193/+30.6408+129.6200/+30.6600+129.6323/+30.6633+129.6400/+30.6702+129.6600/+30.6756+129.6800/+30.6800+129.7000/+30.6800+129.7002/+30.6856+129.7200/+30.6934+129.7400/+30.7000+129.7489/+30.7071+129.7600/+30.7180+129.7800/+30.7129+129.8000/+30.7191+129.8200/+30.7200+129.8228/+30.7299+129.8400/+30.7394+129.8600/+30.7400+129.8618/+30.7444+129.8800/+30.7434+129.9000/+30.7489+129.9200/+30.7534+129.9400/+30.7571+129.9600/+30.7600+129.9775/+30.7611+129.9800/+30.7600+129.9812/+30.7569+130.0000/+30.7589+130.0200/+30.7600+130.0361/+30.7625+130.0400/+30.7724+130.0600/+30.7770+130.0800/+30.7786+130.1000/+30.7795+130.1200/+30.7800+130.1319/+30.7865+130.1400/+30.7974+130.1600/+30.7993+130.1800/+30.7997+130.2000/+30.7999+130.2200/+30.8000+130.2222/+30.8174+130.2400/ 西 70 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+130.3182/+30.7618+130.3000/+30.7651+130.2800/+30.7800+130.2611/+30.8000+130.2620/+30.8147+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 +30.8160+130.2400/+30.8197+130.2600/+30.8199+130.2800/+30.8199+130.3000/+30.8128+130.3200/+30.8000+130.3328/+30.7800+130.3276/+30.7724+130.3200/+30.7601+130.3000/+30.7600+130.2800/+30.7600+130.2785/+30.7417+130.2600/+30.7404+130.2400/+30.7402+130.2200/+30.7400+130.2072/+30.7331+130.2000/+30.7227+130.1800/+30.7211+130.1600/+30.7203+130.1400/+30.7200+130.1366/+30.7077+130.1200/+30.7032+130.1000/+30.7013+130.0800/+30.7000+130.0643/+30.6971+130.0600/+30.6869+130.0400/+30.6800+130.0280/+30.6724+130.0200/+30.6685+130.0000/+30.6664+129.9800/+30.6639+129.9600/+30.6618+129.9400/+30.6600+129.9250/+30.6577+129.9200/+30.6464+129.9000/+30.6442+129.8800/+30.6410+129.8600/+30.6400+129.8553/+30.6333+129.8400/+30.6257+129.8200/+30.6230+129.8000/+30.6229+129.7800/+30.6229+129.7600/+30.6243+129.7400/+30.6289+129.7200/+30.6381+129.7000/+30.6400+129.6973/+30.6452+129.7000/+30.6600+129.7058/+30.6669+129.7200/+30.6753+129.7400/+30.6800+129.7526/+30.6828+129.7600/+30.6918+129.7800/+30.7000+129.7913/+30.7027+129.8000/+30.7078+129.8200/+30.7118+129.8400/+30.7166+129.8600/+30.7200+129.8751/+30.7226+129.8800/+30.7286+129.9000/+30.7368+129.9200/+30.7400+129.9280/+30.7455+129.9400/+30.7515+129.9600/+30.7552+129.9800/+30.7528+130.0000/+30.7565+130.0200/+30.7587+130.0400/+30.7600+130.0504/+30.7674+130.0600/+30.7745+130.0800/+30.7780+130.1000/+30.7793+130.1200/+30.7800+130.1350/+30.7833+130.1400/+30.7961+130.1600/+30.7990+130.1800/+30.7997+130.2000/+30.7999+130.2200/+30.8000+130.2221/+30.8160+130.2400/ 西 60 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8144+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3158/+30.7642+130.3000/+30.7671+130.2800/+30.7800+130.2631/+30.8000+130.2656/+30.8144+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 +30.8029+130.2000/+30.8173+130.2200/+30.8195+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/+30.7600+130.2800/+30.7600+130.2600/+30.7600+130.2592/+30.7421+130.2400/+30.7407+130.2200/+30.7405+130.2000/+30.7403+130.1800/+30.7400+130.1708/+30.7315+130.1600/+30.7240+130.1400/+30.7221+130.1200/+30.7211+130.1000/+30.7201+130.0800/+30.7200+130.0783/+30.7100+130.0600/+30.7051+130.0400/+30.7025+130.0200/+30.7000+130.0139/+30.6866+130.0000/+30.6844+129.9800/+30.6809+129.9600/+30.6800+129.9556/+30.6745+129.9400/+30.6702+129.9200/+30.6619+129.9000/+30.6600+129.8842/+30.6595+129.8800/+30.6557+129.8600/+30.6524+129.8400/+30.6511+129.8200/+30.6469+129.8000/+30.6455+129.7800/+30.6435+129.7600/+30.6427+129.7400/+30.6441+129.7200/+30.6467+129.7000/+30.6521+129.6800/+30.6600+129.6669/+30.6645+129.6800/+30.6759+129.7000/+30.6800+129.7031/+30.7000+129.7115/+30.7050+129.7200/+30.7140+129.7400/+30.7200+129.7569/+30.7210+129.7600/+30.7265+129.7800/+30.7302+129.8000/+30.7397+129.8200/+30.7400+129.8208/+30.7452+129.8400/+30.7492+129.8600/+30.7520+129.8800/+30.7552+129.9000/+30.7590+129.9200/+30.7600+129.9231/+30.7672+129.9400/+30.7717+129.9600/+30.7742+129.9800/+30.7722+130.0000/+30.7760+130.0200/+30.7779+130.0400/+30.7791+130.0600/+30.7800+130.0744/+30.7835+130.0800/+30.7936+130.1000/+30.7972+130.1200/+30.7987+130.1400/+30.7994+130.1600/+30.7998+130.1800/+30.8000+130.1962/+30.8029+130.2000/ 西 60 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/+30.7800+130.3146/+30.7654+130.3000/+30.7682+130.2800/+30.7800+130.2643/+30.8000+130.2634/+30.8138+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　　　　　　　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　　　　　 　 　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。