2026-08-17T23:00:00Z 通常 気象庁本庁 気象庁 2026-08-18T08:00:00+09:00 2026-08-18T09:00:00+09:00 2026-08-19T03:00:00+09:00 511 発表 1 降灰予報 1.1_0 　現在、諏訪之瀬島は噴火警戒レベル２（火口周辺規制）です。諏訪之瀬島で噴火が発生した場合には、１８日０９時から１２時までは火口から北西方向、１８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 諏訪之瀬島 511 降灰 70 鹿児島県十島村 4630400 小さな噴石の落下 75 鹿児島県十島村 4630400 降灰予報（定時） 06 諏訪之瀬島 511 +2938.30+12942.83+796/ 降灰 70 鹿児島県十島村 4630400 小さな噴石の落下 75 鹿児島県十島村 4630400 2026-08-18T09:00:00+09:00 2026-08-18T12:00:00+09:00 降灰 70 +29.8632+129.2200/+29.8676+129.2400/+29.8669+129.2600/+29.8645+129.2800/+29.8600+129.2936/+29.8577+129.3000/+29.8498+129.3200/+29.8400+129.3358/+29.8384+129.3400/+29.8323+129.3600/+29.8200+129.3791/+29.8197+129.3800/+29.8153+129.4000/+29.8104+129.4200/+29.8000+129.4378/+29.7991+129.4400/+29.7800+129.4597/+29.7799+129.4600/+29.7752+129.4800/+29.7622+129.5000/+29.7600+129.5026/+29.7568+129.5200/+29.7462+129.5400/+29.7400+129.5467/+29.7381+129.5600/+29.7317+129.5800/+29.7200+129.5927/+29.7192+129.6000/+29.7165+129.6200/+29.7000+129.6372/+29.6998+129.6400/+29.6993+129.6600/+29.6849+129.6800/+29.6800+129.6849/+29.6799+129.7000/+29.6792+129.7200/+29.6600+129.7392/+29.6400+129.7398/+29.6202+129.7200/+29.6200+129.7000/+29.6201+129.6800/+29.6204+129.6600/+29.6248+129.6400/+29.6400+129.6237/+29.6403+129.6200/+29.6416+129.6000/+29.6469+129.5800/+29.6600+129.5626/+29.6605+129.5600/+29.6642+129.5400/+29.6727+129.5200/+29.6800+129.5067/+29.6812+129.5000/+29.6874+129.4800/+29.7000+129.4619/+29.7008+129.4600/+29.7101+129.4400/+29.7200+129.4220/+29.7206+129.4200/+29.7228+129.4000/+29.7323+129.3800/+29.7400+129.3646/+29.7421+129.3600/+29.7554+129.3400/+29.7600+129.3338/+29.7679+129.3200/+29.7767+129.3000/+29.7800+129.2944/+29.7911+129.2800/+29.8000+129.2663/+29.8062+129.2600/+29.8200+129.2415/+29.8222+129.2400/+29.8388+129.2200/+29.8400+129.2179/+29.8600+129.2117/+29.8632+129.2200/ 北西 50 鹿児島県十島村 4630400 小さな噴石の落下 75 1 +29.6644+129.7000/+29.6600+129.7044/+29.6588+129.7200/+29.6400+129.7388/+29.6212+129.7200/+29.6212+129.7000/+29.6400+129.6804/+29.6600+129.6913/+29.6644+129.7000/ 北西 2 鹿児島県十島村 4630400 2026-08-18T12:00:00+09:00 2026-08-18T15:00:00+09:00 降灰 70 +29.8202+129.2000/+29.8200+129.2009/+29.8162+129.2200/+29.8105+129.2400/+29.8054+129.2600/+29.8000+129.2785/+29.7998+129.2800/+29.7948+129.3000/+29.7911+129.3200/+29.7847+129.3400/+29.7800+129.3538/+29.7786+129.3600/+29.7707+129.3800/+29.7600+129.3961/+29.7592+129.4000/+29.7565+129.4200/+29.7429+129.4400/+29.7400+129.4439/+29.7379+129.4600/+29.7353+129.4800/+29.7288+129.5000/+29.7200+129.5124/+29.7194+129.5200/+29.7181+129.5400/+29.7152+129.5600/+29.7000+129.5794/+29.7000+129.5800/+29.6995+129.6000/+29.6990+129.6200/+29.6960+129.6400/+29.6800+129.6566/+29.6799+129.6600/+29.6799+129.6800/+29.6799+129.7000/+29.6788+129.7200/+29.6600+129.7388/+29.6400+129.7398/+29.6202+129.7200/+29.6200+129.7000/+29.6200+129.6800/+29.6201+129.6600/+29.6205+129.6400/+29.6232+129.6200/+29.6400+129.6005/+29.6400+129.6000/+29.6405+129.5800/+29.6413+129.5600/+29.6434+129.5400/+29.6499+129.5200/+29.6600+129.5042/+29.6604+129.5000/+29.6622+129.4800/+29.6658+129.4600/+29.6720+129.4400/+29.6800+129.4261/+29.6810+129.4200/+29.6800+129.4126/+29.6730+129.4000/+29.6800+129.3858/+29.6826+129.3800/+29.6906+129.3600/+29.7000+129.3457/+29.7015+129.3400/+29.7064+129.3200/+29.7058+129.3000/+29.7200+129.2833/+29.7219+129.2800/+29.7280+129.2600/+29.7366+129.2400/+29.7400+129.2310/+29.7453+129.2200/+29.7600+129.2042/+29.7683+129.2000/+29.7796+129.1800/+29.7800+129.1792/+29.7893+129.1600/+29.7994+129.1400/+29.8000+129.1391/+29.8013+129.1400/+29.8144+129.1600/+29.8181+129.1800/+29.8200+129.1978/+29.8202+129.2000/ 西 60 鹿児島県十島村 4630400 小さな噴石の落下 75 1 +29.6598+129.7000/+29.6588+129.7200/+29.6400+129.7388/+29.6212+129.7200/+29.6212+129.7000/+29.6400+129.6801/+29.6598+129.7000/ 南西 1 鹿児島県十島村 4630400 2026-08-18T15:00:00+09:00 2026-08-18T18:00:00+09:00 降灰 70 +29.8219+129.1600/+29.8239+129.1800/+29.8251+129.2000/+29.8245+129.2200/+29.8225+129.2400/+29.8200+129.2567/+29.8197+129.2600/+29.8176+129.2800/+29.8091+129.3000/+29.8000+129.3127/+29.7979+129.3200/+29.7936+129.3400/+29.7894+129.3600/+29.7850+129.3800/+29.7800+129.3926/+29.7777+129.4000/+29.7677+129.4200/+29.7600+129.4260/+29.7563+129.4400/+29.7506+129.4600/+29.7400+129.4745/+29.7392+129.4800/+29.7374+129.5000/+29.7324+129.5200/+29.7200+129.5345/+29.7194+129.5400/+29.7186+129.5600/+29.7158+129.5800/+29.7000+129.5975/+29.6998+129.6000/+29.6996+129.6200/+29.6989+129.6400/+29.6835+129.6600/+29.6800+129.6635/+29.6799+129.6800/+29.6799+129.7000/+29.6788+129.7200/+29.6600+129.7388/+29.6400+129.7398/+29.6202+129.7200/+29.6200+129.7000/+29.6201+129.6800/+29.6202+129.6600/+29.6215+129.6400/+29.6400+129.6206/+29.6401+129.6200/+29.6404+129.6000/+29.6414+129.5800/+29.6469+129.5600/+29.6600+129.5440/+29.6604+129.5400/+29.6616+129.5200/+29.6646+129.5000/+29.6757+129.4800/+29.6800+129.4733/+29.6811+129.4600/+29.6840+129.4400/+29.6897+129.4200/+29.6879+129.4000/+29.7000+129.3854/+29.7013+129.3800/+29.7047+129.3600/+29.7093+129.3400/+29.7157+129.3200/+29.7200+129.3106/+29.7246+129.3000/+29.7317+129.2800/+29.7371+129.2600/+29.7400+129.2525/+29.7464+129.2400/+29.7547+129.2200/+29.7600+129.2123/+29.7710+129.2000/+29.7781+129.1800/+29.7800+129.1749/+29.7855+129.1600/+29.7952+129.1400/+29.8000+129.1331/+29.8112+129.1400/+29.8200+129.1546/+29.8219+129.1600/ 西 60 鹿児島県十島村 4630400 小さな噴石の落下 75 1 +29.6631+129.7000/+29.6600+129.7031/+29.6588+129.7200/+29.6400+129.7388/+29.6212+129.7200/+29.6212+129.7000/+29.6400+129.6800/+29.6600+129.6902/+29.6631+129.7000/ 北西 2 鹿児島県十島村 4630400 2026-08-18T18:00:00+09:00 2026-08-18T21:00:00+09:00 降灰 70 +29.8018+129.1000/+29.8108+129.1200/+29.8161+129.1400/+29.8173+129.1600/+29.8161+129.1800/+29.8150+129.2000/+29.8106+129.2200/+29.8026+129.2400/+29.8000+129.2479/+29.7977+129.2600/+29.7952+129.2800/+29.7920+129.3000/+29.7893+129.3200/+29.7813+129.3400/+29.7800+129.3443/+29.7770+129.3600/+29.7716+129.3800/+29.7613+129.4000/+29.7600+129.4019/+29.7576+129.4200/+29.7481+129.4400/+29.7400+129.4548/+29.7393+129.4600/+29.7373+129.4800/+29.7327+129.5000/+29.7200+129.5175/+29.7197+129.5200/+29.7183+129.5400/+29.7166+129.5600/+29.7086+129.5800/+29.7000+129.5894/+29.6995+129.6000/+29.6992+129.6200/+29.6972+129.6400/+29.6800+129.6583/+29.6800+129.6600/+29.6799+129.6800/+29.6799+129.7000/+29.6786+129.7200/+29.6600+129.7386/+29.6400+129.7398/+29.6202+129.7200/+29.6200+129.7000/+29.6200+129.6800/+29.6201+129.6600/+29.6205+129.6400/+29.6224+129.6200/+29.6333+129.6000/+29.6400+129.5922/+29.6405+129.5800/+29.6411+129.5600/+29.6431+129.5400/+29.6471+129.5200/+29.6584+129.5000/+29.6600+129.4978/+29.6620+129.4800/+29.6646+129.4600/+29.6693+129.4400/+29.6800+129.4200/+29.6800+129.4199/+29.6707+129.4000/+29.6793+129.3800/+29.6800+129.3780/+29.6844+129.3600/+29.6924+129.3400/+29.7000+129.3274/+29.7021+129.3200/+29.7000+129.3034/+29.6992+129.3000/+29.7000+129.2978/+29.7095+129.2800/+29.7192+129.2600/+29.7200+129.2588/+29.7277+129.2400/+29.7333+129.2200/+29.7367+129.2000/+29.7400+129.1930/+29.7517+129.1800/+29.7600+129.1706/+29.7702+129.1600/+29.7800+129.1409/+29.7804+129.1400/+29.7894+129.1200/+29.7986+129.1000/+29.8000+129.0977/+29.8018+129.1000/ 西 60 鹿児島県十島村 4630400 小さな噴石の落下 75 1 +29.6669+129.7000/+29.6600+129.7069/+29.6588+129.7200/+29.6400+129.7388/+29.6212+129.7200/+29.6212+129.7000/+29.6400+129.6800/+29.6600+129.6857/+29.6669+129.7000/ 北西 2 鹿児島県十島村 4630400 2026-08-18T21:00:00+09:00 2026-08-19T00:00:00+09:00 降灰 70 +29.8053+129.1200/+29.8128+129.1400/+29.8147+129.1600/+29.8144+129.1800/+29.8141+129.2000/+29.8086+129.2200/+29.8032+129.2400/+29.8000+129.2472/+29.7964+129.2600/+29.7934+129.2800/+29.7905+129.3000/+29.7879+129.3200/+29.7800+129.3347/+29.7771+129.3400/+29.7690+129.3600/+29.7600+129.3774/+29.7596+129.3800/+29.7570+129.4000/+29.7547+129.4200/+29.7400+129.4373/+29.7390+129.4400/+29.7370+129.4600/+29.7329+129.4800/+29.7220+129.5000/+29.7200+129.5030/+29.7188+129.5200/+29.7170+129.5400/+29.7122+129.5600/+29.7000+129.5749/+29.6997+129.5800/+29.6993+129.6000/+29.6987+129.6200/+29.6943+129.6400/+29.6800+129.6552/+29.6799+129.6600/+29.6799+129.6800/+29.6799+129.7000/+29.6785+129.7200/+29.6600+129.7385/+29.6400+129.7397/+29.6203+129.7200/+29.6200+129.7000/+29.6200+129.6800/+29.6201+129.6600/+29.6203+129.6400/+29.6212+129.6200/+29.6244+129.6000/+29.6368+129.5800/+29.6400+129.5757/+29.6406+129.5600/+29.6414+129.5400/+29.6433+129.5200/+29.6477+129.5000/+29.6584+129.4800/+29.6600+129.4762/+29.6612+129.4600/+29.6644+129.4400/+29.6680+129.4200/+29.6651+129.4000/+29.6714+129.3800/+29.6778+129.3600/+29.6800+129.3539/+29.6839+129.3400/+29.6920+129.3200/+29.6925+129.3000/+29.6987+129.2800/+29.7000+129.2761/+29.7072+129.2600/+29.7200+129.2442/+29.7241+129.2400/+29.7342+129.2200/+29.7400+129.2074/+29.7476+129.2000/+29.7600+129.1823/+29.7626+129.1800/+29.7777+129.1600/+29.7800+129.1558/+29.7873+129.1400/+29.7967+129.1200/+29.8000+129.1126/+29.8053+129.1200/ 西 60 鹿児島県十島村 4630400 小さな噴石の落下 75 1 +29.6666+129.7000/+29.6600+129.7066/+29.6588+129.7200/+29.6400+129.7388/+29.6212+129.7200/+29.6212+129.7000/+29.6400+129.6800/+29.6600+129.6835/+29.6666+129.7000/ 北西 2 鹿児島県十島村 4630400 2026-08-19T00:00:00+09:00 2026-08-19T03:00:00+09:00 降灰 70 +29.8205+129.1800/+29.8210+129.2000/+29.8200+129.2043/+29.8162+129.2200/+29.8076+129.2400/+29.8000+129.2548/+29.7983+129.2600/+29.7941+129.2800/+29.7912+129.3000/+29.7886+129.3200/+29.7800+129.3400/+29.7755+129.3600/+29.7664+129.3800/+29.7600+129.3899/+29.7586+129.4000/+29.7566+129.4200/+29.7400+129.4400/+29.7377+129.4600/+29.7349+129.4800/+29.7282+129.5000/+29.7200+129.5110/+29.7192+129.5200/+29.7181+129.5400/+29.7155+129.5600/+29.7000+129.5794/+29.7000+129.5800/+29.6996+129.6000/+29.6992+129.6200/+29.6974+129.6400/+29.6800+129.6584/+29.6800+129.6600/+29.6799+129.6800/+29.6799+129.7000/+29.6786+129.7200/+29.6600+129.7386/+29.6400+129.7397/+29.6203+129.7200/+29.6200+129.7000/+29.6200+129.6800/+29.6201+129.6600/+29.6205+129.6400/+29.6222+129.6200/+29.6310+129.6000/+29.6400+129.5891/+29.6404+129.5800/+29.6412+129.5600/+29.6431+129.5400/+29.6468+129.5200/+29.6600+129.5021/+29.6604+129.5000/+29.6620+129.4800/+29.6649+129.4600/+29.6718+129.4400/+29.6800+129.4246/+29.6806+129.4200/+29.6800+129.4159/+29.6708+129.4000/+29.6800+129.3804/+29.6801+129.3800/+29.6859+129.3600/+29.6979+129.3400/+29.7000+129.3375/+29.7051+129.3200/+29.7016+129.3000/+29.7142+129.2800/+29.7200+129.2702/+29.7237+129.2600/+29.7313+129.2400/+29.7364+129.2200/+29.7400+129.2063/+29.7443+129.2000/+29.7594+129.1800/+29.7600+129.1793/+29.7742+129.1600/+29.7800+129.1482/+29.7837+129.1400/+29.7929+129.1200/+29.8000+129.1054/+29.8106+129.1200/+29.8175+129.1400/+29.8200+129.1600/+29.8200+129.1610/+29.8205+129.1800/ 西 60 鹿児島県十島村 4630400 小さな噴石の落下 75 1 +29.6689+129.7000/+29.6600+129.7089/+29.6588+129.7200/+29.6400+129.7388/+29.6212+129.7200/+29.6212+129.7000/+29.6378+129.6800/+29.6400+129.6772/+29.6519+129.6800/+29.6600+129.6819/+29.6689+129.7000/ 西 3 鹿児島県十島村 4630400 　現在、諏訪之瀬島は噴火警戒レベル２（火口周辺規制）です。諏訪之瀬島で噴火が発生した場合には、１８日０９時から１２時までは火口から北西方向、１８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。 　１８日９時から１９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 　１８日０９時から１２時まで　北西　　　　　　５０ｋｍ　　２ｋｍ　　　　　 　１８日１２時から１５時まで　西　　　　　　　６０ｋｍ　　１ｋｍ　　　　　 　１８日１５時から１８時まで　西　　　　　　　６０ｋｍ　　２ｋｍ　　　　　 　１８日１８時から２１時まで　西　　　　　　　６０ｋｍ　　２ｋｍ　　　　　 　１８日２１時から２４時まで　西　　　　　　　６０ｋｍ　　２ｋｍ　　　　　 　１９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：十島村 　 　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。