2026-08-18T05:00:00Z 通常 気象庁本庁 気象庁 2026-08-18T14:00:00+09:00 2026-08-18T15:00:00+09:00 2026-08-19T09:00:00+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 2026-08-18T15:00:00+09:00 2026-08-18T18:00:00+09:00 降灰 70 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西 60 鹿児島県十島村 4630400 小さな噴石の落下 75 1 +29.6655+129.7000/+29.6600+129.7055/+29.6588+129.7200/+29.6400+129.7388/+29.6212+129.7200/+29.6212+129.7000/+29.6389+129.6800/+29.6400+129.6786/+29.6470+129.6800/+29.6600+129.6845/+29.6655+129.7000/ 西 3 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 +29.8202+129.1600/+29.8200+129.1698/+29.8198+129.1800/+29.8195+129.2000/+29.8152+129.2200/+29.8088+129.2400/+29.8000+129.2580/+29.7993+129.2600/+29.7943+129.2800/+29.7909+129.3000/+29.7880+129.3200/+29.7800+129.3364/+29.7784+129.3400/+29.7721+129.3600/+29.7600+129.3791/+29.7598+129.3800/+29.7571+129.4000/+29.7548+129.4200/+29.7400+129.4386/+29.7395+129.4400/+29.7367+129.4600/+29.7341+129.4800/+29.7243+129.5000/+29.7200+129.5061/+29.7189+129.5200/+29.7171+129.5400/+29.7122+129.5600/+29.7000+129.5748/+29.6997+129.5800/+29.6993+129.6000/+29.6985+129.6200/+29.6932+129.6400/+29.6800+129.6536/+29.6799+129.6600/+29.6799+129.6800/+29.6799+129.7000/+29.6782+129.7200/+29.6600+129.7382/+29.6400+129.7397/+29.6203+129.7200/+29.6200+129.7000/+29.6200+129.6800/+29.6201+129.6600/+29.6203+129.6400/+29.6211+129.6200/+29.6249+129.6000/+29.6400+129.5808/+29.6401+129.5800/+29.6406+129.5600/+29.6415+129.5400/+29.6436+129.5200/+29.6477+129.5000/+29.6600+129.4804/+29.6601+129.4800/+29.6622+129.4600/+29.6648+129.4400/+29.6695+129.4200/+29.6665+129.4000/+29.6726+129.3800/+29.6800+129.3603/+29.6801+129.3600/+29.6871+129.3400/+29.7000+129.3209/+29.7003+129.3200/+29.7000+129.3165/+29.6969+129.3000/+29.7000+129.2923/+29.7072+129.2800/+29.7163+129.2600/+29.7200+129.2543/+29.7256+129.2400/+29.7319+129.2200/+29.7370+129.2000/+29.7400+129.1936/+29.7509+129.1800/+29.7600+129.1690/+29.7680+129.1600/+29.7796+129.1400/+29.7800+129.1392/+29.7901+129.1200/+29.8000+129.1017/+29.8126+129.1200/+29.8186+129.1400/+29.8200+129.1567/+29.8202+129.1600/ 西 60 鹿児島県十島村 4630400 小さな噴石の落下 75 1 +29.6656+129.7000/+29.6600+129.7056/+29.6588+129.7200/+29.6400+129.7388/+29.6212+129.7200/+29.6212+129.7000/+29.6369+129.6800/+29.6400+129.6760/+29.6530+129.6800/+29.6600+129.6840/+29.6656+129.7000/ 西 3 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 +29.8220+129.1000/+29.8218+129.1200/+29.8216+129.1400/+29.8208+129.1600/+29.8200+129.1729/+29.8196+129.1800/+29.8185+129.2000/+29.8127+129.2200/+29.8011+129.2400/+29.8000+129.2419/+29.7955+129.2600/+29.7925+129.2800/+29.7900+129.3000/+29.7872+129.3200/+29.7800+129.3334/+29.7763+129.3400/+29.7684+129.3600/+29.7600+129.3729/+29.7590+129.3800/+29.7569+129.4000/+29.7551+129.4200/+29.7400+129.4368/+29.7387+129.4400/+29.7365+129.4600/+29.7314+129.4800/+29.7200+129.4953/+29.7195+129.5000/+29.7185+129.5200/+29.7170+129.5400/+29.7102+129.5600/+29.7000+129.5713/+29.6996+129.5800/+29.6994+129.6000/+29.6988+129.6200/+29.6923+129.6400/+29.6800+129.6528/+29.6799+129.6600/+29.6799+129.6800/+29.6799+129.7000/+29.6781+129.7200/+29.6600+129.7381/+29.6400+129.7397/+29.6203+129.7200/+29.6200+129.7000/+29.6200+129.6800/+29.6201+129.6600/+29.6204+129.6400/+29.6216+129.6200/+29.6282+129.6000/+29.6400+129.5849/+29.6402+129.5800/+29.6408+129.5600/+29.6422+129.5400/+29.6460+129.5200/+29.6556+129.5000/+29.6600+129.4929/+29.6611+129.4800/+29.6630+129.4600/+29.6676+129.4400/+29.6729+129.4200/+29.6674+129.4000/+29.6743+129.3800/+29.6800+129.3634/+29.6809+129.3600/+29.6886+129.3400/+29.7000+129.3246/+29.7013+129.3200/+29.7000+129.3129/+29.6948+129.3000/+29.7000+129.2862/+29.7034+129.2800/+29.7119+129.2600/+29.7200+129.2486/+29.7237+129.2400/+29.7306+129.2200/+29.7343+129.2000/+29.7400+129.1845/+29.7430+129.1800/+29.7564+129.1600/+29.7600+129.1540/+29.7681+129.1400/+29.7760+129.1200/+29.7800+129.1076/+29.7822+129.1000/+29.7920+129.0800/+29.8000+129.0669/+29.8132+129.0800/+29.8200+129.0939/+29.8220+129.1000/ 西 60 鹿児島県十島村 4630400 小さな噴石の落下 75 1 +29.6613+129.6800/+29.6600+129.6951/+29.6600+129.7000/+29.6588+129.7200/+29.6400+129.7388/+29.6212+129.7200/+29.6212+129.7000/+29.6363+129.6800/+29.6400+129.6751/+29.6600+129.6780/+29.6613+129.6800/ 西 4 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 +29.8037+129.0400/+29.8110+129.0600/+29.8130+129.0800/+29.8146+129.1000/+29.8134+129.1200/+29.8124+129.1400/+29.8093+129.1600/+29.8029+129.1800/+29.8000+129.1879/+29.7959+129.2000/+29.7921+129.2200/+29.7910+129.2400/+29.7884+129.2600/+29.7860+129.2800/+29.7833+129.3000/+29.7800+129.3195/+29.7799+129.3200/+29.7647+129.3400/+29.7600+129.3480/+29.7584+129.3600/+29.7566+129.3800/+29.7545+129.4000/+29.7519+129.4200/+29.7400+129.4326/+29.7368+129.4400/+29.7338+129.4600/+29.7214+129.4800/+29.7200+129.4820/+29.7188+129.5000/+29.7178+129.5200/+29.7157+129.5400/+29.7064+129.5600/+29.7000+129.5672/+29.6996+129.5800/+29.6994+129.6000/+29.6988+129.6200/+29.6929+129.6400/+29.6800+129.6540/+29.6799+129.6600/+29.6799+129.6800/+29.6799+129.7000/+29.6783+129.7200/+29.6600+129.7383/+29.6400+129.7397/+29.6203+129.7200/+29.6200+129.7000/+29.6200+129.6800/+29.6201+129.6600/+29.6204+129.6400/+29.6214+129.6200/+29.6265+129.6000/+29.6400+129.5831/+29.6402+129.5800/+29.6406+129.5600/+29.6416+129.5400/+29.6437+129.5200/+29.6477+129.5000/+29.6589+129.4800/+29.6600+129.4783/+29.6617+129.4600/+29.6639+129.4400/+29.6674+129.4200/+29.6644+129.4000/+29.6692+129.3800/+29.6738+129.3600/+29.6800+129.3428/+29.6808+129.3400/+29.6878+129.3200/+29.6897+129.3000/+29.6946+129.2800/+29.7000+129.2603/+29.7001+129.2600/+29.7099+129.2400/+29.7200+129.2208/+29.7204+129.2200/+29.7219+129.2000/+29.7270+129.1800/+29.7340+129.1600/+29.7400+129.1458/+29.7453+129.1400/+29.7600+129.1211/+29.7614+129.1200/+29.7759+129.1000/+29.7800+129.0884/+29.7827+129.0800/+29.7884+129.0600/+29.7968+129.0400/+29.8000+129.0351/+29.8037+129.0400/ 西 70 鹿児島県十島村 4630400 小さな噴石の落下 75 1 +29.6623+129.6800/+29.6669+129.7000/+29.6600+129.7069/+29.6588+129.7200/+29.6400+129.7388/+29.6212+129.7200/+29.6212+129.7000/+29.6361+129.6800/+29.6400+129.6746/+29.6600+129.6765/+29.6623+129.6800/ 北西 4 鹿児島県十島村 4630400 2026-08-19T03:00:00+09:00 2026-08-19T06:00:00+09:00 降灰 70 +29.8045+129.1000/+29.8036+129.1200/+29.8027+129.1400/+29.8010+129.1600/+29.8000+129.1675/+29.7916+129.1800/+29.7915+129.2000/+29.7906+129.2200/+29.7916+129.2400/+29.7896+129.2600/+29.7882+129.2800/+29.7854+129.3000/+29.7825+129.3200/+29.7800+129.3246/+29.7717+129.3400/+29.7640+129.3600/+29.7600+129.3676/+29.7582+129.3800/+29.7562+129.4000/+29.7543+129.4200/+29.7400+129.4370/+29.7388+129.4400/+29.7371+129.4600/+29.7336+129.4800/+29.7274+129.5000/+29.7200+129.5100/+29.7190+129.5200/+29.7177+129.5400/+29.7148+129.5600/+29.7000+129.5790/+29.6999+129.5800/+29.6995+129.6000/+29.6996+129.6200/+29.6974+129.6400/+29.6814+129.6600/+29.6800+129.6616/+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/+29.6203+129.6400/+29.6209+129.6200/+29.6224+129.6000/+29.6263+129.5800/+29.6346+129.5600/+29.6400+129.5493/+29.6405+129.5400/+29.6417+129.5200/+29.6440+129.5000/+29.6489+129.4800/+29.6551+129.4600/+29.6600+129.4465/+29.6609+129.4400/+29.6649+129.4200/+29.6629+129.4000/+29.6682+129.3800/+29.6733+129.3600/+29.6800+129.3413/+29.6804+129.3400/+29.6871+129.3200/+29.6903+129.3000/+29.6954+129.2800/+29.7000+129.2644/+29.7017+129.2600/+29.7134+129.2400/+29.7200+129.2259/+29.7228+129.2200/+29.7321+129.2000/+29.7400+129.1833/+29.7446+129.1800/+29.7600+129.1673/+29.7800+129.1672/+29.7912+129.1600/+29.7920+129.1400/+29.7929+129.1200/+29.7934+129.1000/+29.8000+129.0893/+29.8045+129.1000/ 西 60 鹿児島県十島村 4630400 小さな噴石の落下 75 1 +29.6681+129.7000/+29.6600+129.7081/+29.6588+129.7200/+29.6400+129.7388/+29.6212+129.7200/+29.6212+129.7000/+29.6400+129.6802/+29.6600+129.6853/+29.6681+129.7000/ 北西 2 鹿児島県十島村 4630400 2026-08-19T06:00:00+09:00 2026-08-19T09:00:00+09:00 降灰 70 +29.8211+129.1600/+29.8201+129.1800/+29.8200+129.1823/+29.8193+129.2000/+29.8141+129.2200/+29.8053+129.2400/+29.8000+129.2505/+29.7971+129.2600/+29.7931+129.2800/+29.7902+129.3000/+29.7877+129.3200/+29.7800+129.3378/+29.7792+129.3400/+29.7745+129.3600/+29.7659+129.3800/+29.7600+129.3900/+29.7586+129.4000/+29.7563+129.4200/+29.7406+129.4400/+29.7400+129.4408/+29.7375+129.4600/+29.7352+129.4800/+29.7305+129.5000/+29.7200+129.5144/+29.7194+129.5200/+29.7182+129.5400/+29.7164+129.5600/+29.7080+129.5800/+29.7000+129.5937/+29.6999+129.6000/+29.6995+129.6200/+29.6980+129.6400/+29.6800+129.6598/+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/+29.6203+129.6400/+29.6211+129.6200/+29.6230+129.6000/+29.6278+129.5800/+29.6396+129.5600/+29.6400+129.5593/+29.6409+129.5400/+29.6426+129.5200/+29.6445+129.5000/+29.6474+129.4800/+29.6584+129.4600/+29.6600+129.4552/+29.6615+129.4400/+29.6645+129.4200/+29.6629+129.4000/+29.6682+129.3800/+29.6751+129.3600/+29.6800+129.3491/+29.6834+129.3400/+29.6956+129.3200/+29.6947+129.3000/+29.7000+129.2873/+29.7043+129.2800/+29.7132+129.2600/+29.7200+129.2501/+29.7246+129.2400/+29.7317+129.2200/+29.7390+129.2000/+29.7400+129.1976/+29.7517+129.1800/+29.7600+129.1674/+29.7651+129.1600/+29.7762+129.1400/+29.7800+129.1336/+29.7882+129.1200/+29.8000+129.1010/+29.8132+129.1200/+29.8197+129.1400/+29.8200+129.1438/+29.8211+129.1600/ 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/+29.6400+129.6800/+29.6600+129.6809/+29.6689+129.7000/ 北西 2 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１５時から１９日９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１５時から１８時まで　西　　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　１８日１８時から２１時まで　西　　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　１８日２１時から２４時まで　西　　　　　　　６０ｋｍ　　４ｋｍ　　　　　 　１９日００時から０３時まで　西　　　　　　　７０ｋｍ　　４ｋｍ　　　　　 　１９日０３時から０６時まで　西　　　　　　　６０ｋｍ　　２ｋｍ　　　　　 　１９日０６時から０９時まで　西　　　　　　　６０ｋｍ　　２ｋｍ　　　　　 　 　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。