2026-08-03T11:00:00Z 通常 気象庁本庁 気象庁 2026-08-03T20:00:00+09:00 2026-08-03T21:00:00+09:00 2026-08-04T15:00:00+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 2026-08-03T21:00:00+09:00 2026-08-04T00:00:00+09:00 降灰 70 +30.8111+130.2400/+30.8196+130.2600/+30.8199+130.2800/+30.8199+130.3000/+30.8099+130.3200/+30.8000+130.3299/+30.7800+130.3227/+30.7773+130.3200/+30.7601+130.3000/+30.7600+130.2800/+30.7407+130.2600/+30.7402+130.2400/+30.7401+130.2200/+30.7400+130.2186/+30.7233+130.2000/+30.7211+130.1800/+30.7203+130.1600/+30.7200+130.1562/+30.7071+130.1400/+30.7023+130.1200/+30.7010+130.1000/+30.7000+130.0908/+30.6918+130.0800/+30.6853+130.0600/+30.6821+130.0400/+30.6800+130.0354/+30.6658+130.0200/+30.6636+130.0000/+30.6617+129.9800/+30.6600+129.9689/+30.6535+129.9600/+30.6453+129.9400/+30.6428+129.9200/+30.6400+129.9067/+30.6352+129.9000/+30.6258+129.8800/+30.6221+129.8600/+30.6200+129.8469/+30.6190+129.8400/+30.6181+129.8200/+30.6179+129.8000/+30.6142+129.7800/+30.6067+129.7600/+30.6000+129.7473/+30.5973+129.7400/+30.5928+129.7200/+30.5887+129.7000/+30.5907+129.6800/+30.5935+129.6600/+30.5991+129.6400/+30.6000+129.6381/+30.6008+129.6400/+30.6083+129.6600/+30.6176+129.6800/+30.6200+129.6838/+30.6337+129.7000/+30.6400+129.7048/+30.6537+129.7200/+30.6600+129.7261/+30.6662+129.7400/+30.6726+129.7600/+30.6782+129.7800/+30.6800+129.7826/+30.6901+129.8000/+30.7000+129.8185/+30.7006+129.8200/+30.7063+129.8400/+30.7115+129.8600/+30.7154+129.8800/+30.7176+129.9000/+30.7200+129.9123/+30.7238+129.9200/+30.7358+129.9400/+30.7400+129.9541/+30.7422+129.9600/+30.7478+129.9800/+30.7400+129.9953/+30.7394+130.0000/+30.7400+130.0035/+30.7493+130.0200/+30.7559+130.0400/+30.7581+130.0600/+30.7598+130.0800/+30.7600+130.0811/+30.7733+130.1000/+30.7784+130.1200/+30.7796+130.1400/+30.7800+130.1484/+30.7883+130.1600/+30.7976+130.1800/+30.7995+130.2000/+30.7999+130.2200/+30.8000+130.2271/+30.8111+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+130.3173/+30.7627+130.3000/+30.7656+130.2800/+30.7800+130.2621/+30.8000+130.2652/+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 +30.8014+129.9800/+30.8000+129.9844/+30.7959+130.0000/+30.7965+130.0200/+30.8000+130.0366/+30.8016+130.0400/+30.8000+130.0555/+30.7999+130.0600/+30.7992+130.0800/+30.8000+130.0947/+30.8019+130.1000/+30.8066+130.1200/+30.8068+130.1400/+30.8097+130.1600/+30.8146+130.1800/+30.8174+130.2000/+30.8191+130.2200/+30.8197+130.2400/+30.8199+130.2600/+30.8199+130.2800/+30.8199+130.3000/+30.8083+130.3200/+30.8000+130.3283/+30.7814+130.3200/+30.7800+130.3200/+30.7601+130.3000/+30.7600+130.2800/+30.7600+130.2600/+30.7600+130.2570/+30.7441+130.2400/+30.7414+130.2200/+30.7408+130.2000/+30.7405+130.1800/+30.7402+130.1600/+30.7400+130.1562/+30.7290+130.1400/+30.7244+130.1200/+30.7227+130.1000/+30.7211+130.0800/+30.7205+130.0600/+30.7200+130.0517/+30.7155+130.0400/+30.7114+130.0200/+30.7000+130.0022/+30.6978+130.0000/+30.6942+129.9800/+30.6924+129.9600/+30.6909+129.9400/+30.6894+129.9200/+30.6869+129.9000/+30.6859+129.8800/+30.6853+129.8600/+30.6846+129.8400/+30.6820+129.8200/+30.6800+129.8089/+30.6775+129.8000/+30.6737+129.7800/+30.6737+129.7600/+30.6746+129.7400/+30.6768+129.7200/+30.6800+129.7003/+30.6801+129.7000/+30.6856+129.6800/+30.6954+129.6600/+30.7000+129.6516/+30.7034+129.6600/+30.7127+129.6800/+30.7200+129.7000/+30.7200+129.7001/+30.7282+129.7200/+30.7362+129.7400/+30.7400+129.7479/+30.7463+129.7600/+30.7579+129.7800/+30.7571+129.8000/+30.7600+129.8084/+30.7667+129.8200/+30.7751+129.8400/+30.7800+129.8481/+30.7851+129.8600/+30.7906+129.8800/+30.7800+129.8996/+30.7799+129.9000/+30.7800+129.9023/+30.7873+129.9200/+30.7925+129.9400/+30.7971+129.9600/+30.8000+129.9736/+30.8014+129.9800/ 西 60 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8150+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3148/+30.7652+130.3000/+30.7668+130.2800/+30.7800+130.2620/+30.8000+130.2616/+30.8150+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 +30.8150+130.2200/+30.8189+130.2400/+30.8198+130.2600/+30.8199+130.2800/+30.8199+130.3000/+30.8096+130.3200/+30.8000+130.3296/+30.7800+130.3225/+30.7775+130.3200/+30.7601+130.3000/+30.7600+130.2800/+30.7600+130.2794/+30.7412+130.2600/+30.7404+130.2400/+30.7402+130.2200/+30.7400+130.2167/+30.7254+130.2000/+30.7220+130.1800/+30.7209+130.1600/+30.7200+130.1490/+30.7129+130.1400/+30.7052+130.1200/+30.7022+130.1000/+30.7000+130.0805/+30.6997+130.0800/+30.6908+130.0600/+30.6859+130.0400/+30.6800+130.0214/+30.6789+130.0200/+30.6750+130.0000/+30.6710+129.9800/+30.6687+129.9600/+30.6673+129.9400/+30.6666+129.9200/+30.6600+129.9031/+30.6579+129.9000/+30.6564+129.8800/+30.6563+129.8600/+30.6561+129.8400/+30.6562+129.8200/+30.6600+129.8004/+30.6601+129.8000/+30.6605+129.7800/+30.6612+129.7600/+30.6649+129.7400/+30.6787+129.7200/+30.6800+129.7190/+30.7000+129.7100/+30.7053+129.7200/+30.7137+129.7400/+30.7200+129.7543/+30.7223+129.7600/+30.7318+129.7800/+30.7400+129.7931/+30.7438+129.8000/+30.7500+129.8200/+30.7556+129.8400/+30.7600+129.8575/+30.7611+129.8600/+30.7689+129.8800/+30.7800+129.9000/+30.7800+129.9001/+30.7860+129.9200/+30.7886+129.9400/+30.7898+129.9600/+30.7899+129.9800/+30.7983+130.0000/+30.7902+130.0200/+30.7867+130.0400/+30.7861+130.0600/+30.7929+130.0800/+30.7951+130.1000/+30.7976+130.1200/+30.7987+130.1400/+30.7993+130.1600/+30.7996+130.1800/+30.8000+130.2000/+30.8000+130.2003/+30.8150+130.2200/ 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+130.3164/+30.7636+130.3000/+30.7687+130.2800/+30.7800+130.2650/+30.8000+130.2629/+30.8144+130.2800/ 西 3 鹿児島県三島村 4630300 2026-08-04T06:00:00+09:00 2026-08-04T09:00:00+09:00 降灰 70 +30.8191+130.2600/+30.8199+130.2800/+30.8199+130.3000/+30.8000+130.3200/+30.7800+130.3200/+30.7601+130.3000/+30.7600+130.2942/+30.7457+130.2800/+30.7403+130.2600/+30.7401+130.2400/+30.7400+130.2348/+30.7255+130.2200/+30.7210+130.2000/+30.7203+130.1800/+30.7200+130.1767/+30.7053+130.1600/+30.7016+130.1400/+30.7000+130.1223/+30.6980+130.1200/+30.6851+130.1000/+30.6814+130.0800/+30.6800+130.0713/+30.6718+130.0600/+30.6650+130.0400/+30.6600+130.0276/+30.6499+130.0200/+30.6412+130.0000/+30.6400+129.9954/+30.6344+129.9800/+30.6289+129.9600/+30.6244+129.9400/+30.6200+129.9311/+30.6130+129.9200/+30.6093+129.9000/+30.6058+129.8800/+30.6030+129.8600/+30.6000+129.8440/+30.5975+129.8400/+30.5875+129.8200/+30.5826+129.8000/+30.5800+129.7823/+30.5797+129.7800/+30.5765+129.7600/+30.5755+129.7400/+30.5774+129.7200/+30.5800+129.7028/+30.5806+129.7000/+30.5929+129.6800/+30.6000+129.6732/+30.6038+129.6800/+30.6131+129.7000/+30.6200+129.7162/+30.6217+129.7200/+30.6311+129.7400/+30.6400+129.7550/+30.6432+129.7600/+30.6591+129.7800/+30.6600+129.7810/+30.6649+129.8000/+30.6707+129.8200/+30.6768+129.8400/+30.6800+129.8465/+30.6907+129.8600/+30.6992+129.8800/+30.7000+129.8815/+30.7066+129.9000/+30.7089+129.9200/+30.7149+129.9400/+30.7191+129.9600/+30.7200+129.9647/+30.7304+129.9800/+30.7346+130.0000/+30.7368+130.0200/+30.7397+130.0400/+30.7400+130.0414/+30.7527+130.0600/+30.7574+130.0800/+30.7592+130.1000/+30.7600+130.1062/+30.7713+130.1200/+30.7780+130.1400/+30.7793+130.1600/+30.7800+130.1739/+30.7858+130.1800/+30.7985+130.2000/+30.7997+130.2200/+30.7999+130.2400/+30.8000+130.2407/+30.8191+130.2600/ 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+130.3173/+30.7627+130.3000/+30.7656+130.2800/+30.7800+130.2621/+30.8000+130.2652/+30.8147+130.2800/ 西 3 鹿児島県三島村 4630300 2026-08-04T09:00:00+09:00 2026-08-04T12:00:00+09:00 降灰 70 +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+130.2795/+30.7408+130.2600/+30.7402+130.2400/+30.7401+130.2200/+30.7400+130.2167/+30.7245+130.2000/+30.7213+130.1800/+30.7204+130.1600/+30.7200+130.1519/+30.7105+130.1400/+30.7032+130.1200/+30.7013+130.1000/+30.7000+130.0879/+30.6936+130.0800/+30.6858+130.0600/+30.6817+130.0400/+30.6800+130.0361/+30.6657+130.0200/+30.6633+130.0000/+30.6614+129.9800/+30.6600+129.9688/+30.6538+129.9600/+30.6452+129.9400/+30.6428+129.9200/+30.6400+129.9046/+30.6372+129.9000/+30.6284+129.8800/+30.6233+129.8600/+30.6200+129.8434/+30.6194+129.8400/+30.6161+129.8200/+30.6148+129.8000/+30.6138+129.7800/+30.6123+129.7600/+30.6113+129.7400/+30.6114+129.7200/+30.6118+129.7000/+30.6200+129.6848/+30.6245+129.6800/+30.6400+129.6705/+30.6504+129.6800/+30.6600+129.6885/+30.6642+129.7000/+30.6706+129.7200/+30.6760+129.7400/+30.6800+129.7549/+30.6813+129.7600/+30.6869+129.7800/+30.6982+129.8000/+30.7000+129.8051/+30.7041+129.8200/+30.7079+129.8400/+30.7120+129.8600/+30.7152+129.8800/+30.7169+129.9000/+30.7200+129.9137/+30.7239+129.9200/+30.7374+129.9400/+30.7400+129.9479/+30.7448+129.9600/+30.7498+129.9800/+30.7400+129.9936/+30.7389+130.0000/+30.7400+130.0079/+30.7479+130.0200/+30.7557+130.0400/+30.7584+130.0600/+30.7599+130.0800/+30.7600+130.0812/+30.7738+130.1000/+30.7781+130.1200/+30.7793+130.1400/+30.7800+130.1600/+30.7800+130.1601/+30.7974+130.1800/+30.7994+130.2000/+30.7998+130.2200/+30.8000+130.2400/+30.8196+130.2600/ 西 60 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8137+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3164/+30.7636+130.3000/+30.7662+130.2800/+30.7800+130.2626/+30.8000+130.2663/+30.8137+130.2800/ 西 3 鹿児島県三島村 4630300 2026-08-04T12:00:00+09:00 2026-08-04T15:00:00+09:00 降灰 70 +30.8142+130.2400/+30.8197+130.2600/+30.8199+130.2800/+30.8199+130.3000/+30.8000+130.3200/+30.7800+130.3200/+30.7601+130.3000/+30.7600+130.2800/+30.7600+130.2786/+30.7417+130.2600/+30.7403+130.2400/+30.7402+130.2200/+30.7400+130.2117/+30.7287+130.2000/+30.7217+130.1800/+30.7207+130.1600/+30.7200+130.1477/+30.7132+130.1400/+30.7037+130.1200/+30.7013+130.1000/+30.7000+130.0845/+30.6965+130.0800/+30.6858+130.0600/+30.6822+130.0400/+30.6800+130.0357/+30.6655+130.0200/+30.6631+130.0000/+30.6607+129.9800/+30.6600+129.9764/+30.6473+129.9600/+30.6406+129.9400/+30.6400+129.9343/+30.6353+129.9200/+30.6250+129.9000/+30.6200+129.8843/+30.6189+129.8800/+30.6138+129.8600/+30.6096+129.8400/+30.6056+129.8200/+30.6000+129.8059/+30.5966+129.8000/+30.5895+129.7800/+30.5838+129.7600/+30.5810+129.7400/+30.5805+129.7200/+30.5800+129.7031/+30.5799+129.7000/+30.5800+129.6981/+30.5814+129.6800/+30.5847+129.6600/+30.6000+129.6430/+30.6083+129.6600/+30.6161+129.6800/+30.6200+129.6899/+30.6239+129.7000/+30.6339+129.7200/+30.6400+129.7281/+30.6482+129.7400/+30.6600+129.7532/+30.6635+129.7600/+30.6734+129.7800/+30.6750+129.8000/+30.6800+129.8081/+30.6910+129.8200/+30.7000+129.8383/+30.7006+129.8400/+30.7072+129.8600/+30.7114+129.8800/+30.7151+129.9000/+30.7195+129.9200/+30.7200+129.9216/+30.7337+129.9400/+30.7400+129.9554/+30.7422+129.9600/+30.7495+129.9800/+30.7443+130.0000/+30.7534+130.0200/+30.7574+130.0400/+30.7598+130.0600/+30.7600+130.0615/+30.7699+130.0800/+30.7768+130.1000/+30.7789+130.1200/+30.7797+130.1400/+30.7800+130.1428/+30.7941+130.1600/+30.7987+130.1800/+30.7996+130.2000/+30.7998+130.2200/+30.8000+130.2257/+30.8142+130.2400/ 西 70 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8124+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3183/+30.7617+130.3000/+30.7674+130.2800/+30.7800+130.2637/+30.8000+130.2676/+30.8124+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２１時から４日１５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　　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　０４日０６時から０９時まで　西　　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　０４日０９時から１２時まで　西　　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　０４日１２時から１５時まで　西　　　　　　　７０ｋｍ　　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。