2026-09-19T11:00:00Z 通常 気象庁本庁 気象庁 2026-09-19T20:00:00+09:00 2026-09-19T21:00:00+09:00 2026-09-20T15:00:00+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、１９日２１時から２４時までは火口から南西方向、２０日０９時から１２時までは火口から南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 2026-09-19T21:00:00+09:00 2026-09-20T00:00:00+09:00 降灰 70 +29.6595+129.6800/+29.6600+129.7000/+29.6599+129.7200/+29.6400+129.7399/+29.6200+129.7398/+29.6002+129.7200/+29.6000+129.7196/+29.5802+129.7000/+29.5800+129.6997/+29.5600+129.6865/+29.5534+129.6800/+29.5400+129.6707/+29.5290+129.6600/+29.5200+129.6515/+29.5076+129.6400/+29.5000+129.6305/+29.4896+129.6200/+29.4800+129.6006/+29.4795+129.6000/+29.4614+129.5800/+29.4600+129.5772/+29.4459+129.5600/+29.4400+129.5493/+29.4325+129.5400/+29.4200+129.5242/+29.4168+129.5200/+29.4084+129.5000/+29.4014+129.4800/+29.4000+129.4764/+29.3859+129.4600/+29.3800+129.4524/+29.3711+129.4400/+29.3617+129.4200/+29.3600+129.4173/+29.3471+129.4000/+29.3400+129.3817/+29.3392+129.3800/+29.3280+129.3600/+29.3400+129.3403/+29.3408+129.3400/+29.3600+129.3366/+29.3647+129.3400/+29.3800+129.3537/+29.3855+129.3600/+29.4000+129.3701/+29.4130+129.3800/+29.4200+129.3864/+29.4312+129.4000/+29.4400+129.4073/+29.4505+129.4200/+29.4600+129.4323/+29.4669+129.4400/+29.4800+129.4511/+29.4861+129.4600/+29.4951+129.4800/+29.5000+129.4878/+29.5101+129.5000/+29.5200+129.5181/+29.5218+129.5200/+29.5399+129.5400/+29.5400+129.5401/+29.5581+129.5600/+29.5600+129.5622/+29.5768+129.5800/+29.5800+129.5850/+29.5946+129.6000/+29.6000+129.6114/+29.6085+129.6200/+29.6196+129.6400/+29.6200+129.6404/+29.6395+129.6600/+29.6400+129.6605/+29.6595+129.6800/ 南西 50 鹿児島県十島村 4630400 小さな噴石の落下 75 1 +29.6586+129.7000/+29.6588+129.7200/+29.6400+129.7388/+29.6212+129.7200/+29.6200+129.7038/+29.6158+129.7000/+29.6200+129.6941/+29.6400+129.6814/+29.6586+129.7000/ 南西 3 鹿児島県十島村 4630400 2026-09-20T00:00:00+09:00 2026-09-20T03:00:00+09:00 降灰 70 +29.6483+129.6800/+29.6600+129.7000/+29.6600+129.7200/+29.6400+129.7399/+29.6200+129.7399/+29.6000+129.7280/+29.5918+129.7200/+29.5800+129.7193/+29.5600+129.7108/+29.5468+129.7000/+29.5400+129.6991/+29.5200+129.6942/+29.5020+129.6800/+29.5000+129.6792/+29.4800+129.6747/+29.4600+129.6633/+29.4546+129.6600/+29.4400+129.6527/+29.4202+129.6400/+29.4200+129.6396/+29.4000+129.6262/+29.3938+129.6200/+29.3819+129.6000/+29.3800+129.5964/+29.3695+129.5800/+29.3600+129.5611/+29.3593+129.5600/+29.3539+129.5400/+29.3514+129.5200/+29.3553+129.5000/+29.3600+129.4963/+29.3800+129.4957/+29.3901+129.5000/+29.4000+129.5043/+29.4200+129.5143/+29.4311+129.5200/+29.4400+129.5229/+29.4600+129.5355/+29.4648+129.5400/+29.4800+129.5475/+29.4946+129.5600/+29.5000+129.5635/+29.5170+129.5800/+29.5200+129.5815/+29.5400+129.5968/+29.5433+129.6000/+29.5600+129.6102/+29.5698+129.6200/+29.5800+129.6244/+29.5958+129.6400/+29.6000+129.6412/+29.6189+129.6600/+29.6200+129.6602/+29.6400+129.6717/+29.6483+129.6800/ 南西 40 鹿児島県十島村 4630400 小さな噴石の落下 75 1 +29.6570+129.7000/+29.6588+129.7200/+29.6400+129.7388/+29.6211+129.7200/+29.6200+129.7060/+29.6131+129.7000/+29.6200+129.6936/+29.6400+129.6830/+29.6570+129.7000/ 南西 3 鹿児島県十島村 4630400 2026-09-20T03:00:00+09:00 2026-09-20T06:00:00+09:00 降灰 70 +29.6599+129.7000/+29.6599+129.7200/+29.6400+129.7399/+29.6200+129.7399/+29.6000+129.7392/+29.5805+129.7200/+29.5800+129.7199/+29.5600+129.7193/+29.5400+129.7164/+29.5200+129.7001/+29.5199+129.7000/+29.5000+129.6982/+29.4800+129.6949/+29.4600+129.6825/+29.4561+129.6800/+29.4400+129.6778/+29.4200+129.6715/+29.4015+129.6600/+29.4000+129.6594/+29.3800+129.6522/+29.3600+129.6512/+29.3400+129.6409/+29.3382+129.6400/+29.3200+129.6323/+29.3039+129.6200/+29.3000+129.6174/+29.2800+129.6082/+29.2690+129.6000/+29.2600+129.5940/+29.2400+129.5811/+29.2377+129.5800/+29.2200+129.5687/+29.2105+129.5600/+29.2035+129.5400/+29.2064+129.5200/+29.2200+129.5075/+29.2400+129.5002/+29.2600+129.5048/+29.2800+129.5095/+29.2961+129.5200/+29.3000+129.5217/+29.3200+129.5290/+29.3400+129.5352/+29.3519+129.5400/+29.3600+129.5424/+29.3800+129.5513/+29.3906+129.5600/+29.4000+129.5634/+29.4200+129.5753/+29.4263+129.5800/+29.4400+129.5836/+29.4600+129.5909/+29.4710+129.6000/+29.4800+129.6024/+29.5000+129.6133/+29.5075+129.6200/+29.5200+129.6221/+29.5400+129.6329/+29.5475+129.6400/+29.5600+129.6410/+29.5800+129.6479/+29.5923+129.6600/+29.6000+129.6602/+29.6200+129.6626/+29.6374+129.6800/+29.6400+129.6801/+29.6599+129.7000/ 南 50 鹿児島県十島村 4630400 小さな噴石の落下 75 1 +29.6580+129.7000/+29.6588+129.7200/+29.6400+129.7388/+29.6200+129.7260/+29.6140+129.7200/+29.6061+129.7000/+29.6200+129.6878/+29.6400+129.6820/+29.6580+129.7000/ 南 3 鹿児島県十島村 4630400 2026-09-20T06:00:00+09:00 2026-09-20T09:00:00+09:00 降灰 70 +29.6599+129.7000/+29.6599+129.7200/+29.6400+129.7399/+29.6200+129.7400/+29.6000+129.7399/+29.5800+129.7397/+29.5600+129.7392/+29.5400+129.7383/+29.5200+129.7363/+29.5000+129.7339/+29.4800+129.7302/+29.4600+129.7244/+29.4523+129.7200/+29.4400+129.7182/+29.4200+129.7161/+29.4000+129.7137/+29.3800+129.7056/+29.3600+129.7074/+29.3400+129.7000/+29.3200+129.6931/+29.3001+129.6800/+29.3000+129.6800/+29.2800+129.6751/+29.2600+129.6705/+29.2400+129.6638/+29.2270+129.6600/+29.2200+129.6574/+29.2000+129.6464/+29.1874+129.6400/+29.1800+129.6363/+29.1600+129.6279/+29.1410+129.6200/+29.1400+129.6196/+29.1200+129.6096/+29.1058+129.6000/+29.1017+129.5800/+29.1000+129.5771/+29.0906+129.5600/+29.1000+129.5526/+29.1200+129.5579/+29.1331+129.5600/+29.1400+129.5610/+29.1600+129.5625/+29.1800+129.5632/+29.2000+129.5636/+29.2200+129.5675/+29.2400+129.5696/+29.2600+129.5717/+29.2800+129.5739/+29.3000+129.5784/+29.3023+129.5800/+29.3200+129.5896/+29.3400+129.5939/+29.3600+129.5990/+29.3631+129.6000/+29.3800+129.6036/+29.3975+129.6200/+29.4000+129.6206/+29.4200+129.6234/+29.4400+129.6263/+29.4600+129.6378/+29.4627+129.6400/+29.4800+129.6417/+29.5000+129.6433/+29.5200+129.6473/+29.5354+129.6600/+29.5400+129.6603/+29.5600+129.6607/+29.5800+129.6616/+29.6000+129.6719/+29.6081+129.6800/+29.6200+129.6800/+29.6400+129.6801/+29.6599+129.7000/ 南 60 鹿児島県十島村 4630400 小さな噴石の落下 75 1 +29.6583+129.7000/+29.6588+129.7200/+29.6400+129.7388/+29.6200+129.7326/+29.6056+129.7200/+29.6054+129.7000/+29.6200+129.6878/+29.6400+129.6817/+29.6583+129.7000/ 南 3 鹿児島県十島村 4630400 2026-09-20T09:00:00+09:00 2026-09-20T12:00:00+09:00 降灰 70 +29.6598+129.7000/+29.6599+129.7200/+29.6400+129.7399/+29.6204+129.7400/+29.6200+129.7404/+29.6000+129.7587/+29.5800+129.7594/+29.5600+129.7595/+29.5400+129.7597/+29.5299+129.7600/+29.5200+129.7677/+29.5000+129.7745/+29.4800+129.7767/+29.4600+129.7774/+29.4400+129.7783/+29.4200+129.7796/+29.4148+129.7800/+29.4000+129.7848/+29.3800+129.7890/+29.3600+129.7918/+29.3400+129.7911/+29.3200+129.7907/+29.3000+129.7892/+29.2800+129.7873/+29.2600+129.7855/+29.2400+129.7831/+29.2301+129.7800/+29.2200+129.7763/+29.2000+129.7667/+29.1818+129.7600/+29.1800+129.7585/+29.1600+129.7428/+29.1550+129.7400/+29.1400+129.7235/+29.1319+129.7200/+29.1200+129.7154/+29.1000+129.7089/+29.0914+129.7000/+29.1000+129.6960/+29.1200+129.6939/+29.1400+129.6920/+29.1600+129.6887/+29.1800+129.6851/+29.2000+129.6813/+29.2027+129.6800/+29.2200+129.6750/+29.2400+129.6705/+29.2600+129.6693/+29.2800+129.6682/+29.3000+129.6728/+29.3200+129.6751/+29.3400+129.6748/+29.3600+129.6720/+29.3800+129.6765/+29.4000+129.6758/+29.4200+129.6795/+29.4213+129.6800/+29.4400+129.6813/+29.4600+129.6809/+29.4800+129.6809/+29.5000+129.6811/+29.5200+129.6811/+29.5400+129.6809/+29.5600+129.6806/+29.5800+129.6804/+29.6000+129.6802/+29.6200+129.6801/+29.6400+129.6802/+29.6598+129.7000/ 南 60 鹿児島県十島村 4630400 小さな噴石の落下 75 1 +29.6574+129.7000/+29.6588+129.7200/+29.6400+129.7388/+29.6200+129.7339/+29.6040+129.7200/+29.6071+129.7000/+29.6200+129.6899/+29.6400+129.6826/+29.6574+129.7000/ 南 3 鹿児島県十島村 4630400 2026-09-20T12:00:00+09:00 2026-09-20T15:00:00+09:00 降灰 70 +29.6598+129.7000/+29.6599+129.7200/+29.6400+129.7399/+29.6379+129.7400/+29.6200+129.7579/+29.6000+129.7598/+29.5800+129.7598/+29.5600+129.7600/+29.5596+129.7600/+29.5400+129.7778/+29.5200+129.7793/+29.5000+129.7798/+29.4975+129.7800/+29.4800+129.7949/+29.4600+129.7983/+29.4400+129.7998/+29.4381+129.8000/+29.4200+129.8127/+29.4000+129.8179/+29.3956+129.8200/+29.3800+129.8360/+29.3600+129.8393/+29.3572+129.8400/+29.3400+129.8479/+29.3200+129.8536/+29.3079+129.8600/+29.3000+129.8669/+29.2800+129.8697/+29.2600+129.8730/+29.2400+129.8767/+29.2275+129.8800/+29.2200+129.8842/+29.2000+129.8903/+29.1800+129.8938/+29.1626+129.9000/+29.1600+129.9012/+29.1400+129.9066/+29.1200+129.9094/+29.1000+129.9123/+29.0800+129.9092/+29.0600+129.9035/+29.0537+129.9000/+29.0600+129.8970/+29.0800+129.8868/+29.0902+129.8800/+29.1000+129.8719/+29.1085+129.8600/+29.1200+129.8471/+29.1258+129.8400/+29.1400+129.8327/+29.1600+129.8246/+29.1720+129.8200/+29.1800+129.8171/+29.2000+129.8123/+29.2200+129.8014/+29.2234+129.8000/+29.2400+129.7893/+29.2545+129.7800/+29.2600+129.7778/+29.2800+129.7725/+29.3000+129.7685/+29.3200+129.7624/+29.3288+129.7600/+29.3400+129.7550/+29.3600+129.7466/+29.3800+129.7512/+29.4000+129.7444/+29.4200+129.7417/+29.4400+129.7401/+29.4409+129.7400/+29.4600+129.7250/+29.4800+129.7214/+29.5000+129.7205/+29.5115+129.7200/+29.5200+129.7122/+29.5400+129.7014/+29.5600+129.7003/+29.5800+129.7001/+29.5854+129.7000/+29.6000+129.6854/+29.6200+129.6802/+29.6400+129.6802/+29.6598+129.7000/ 南 70 鹿児島県十島村 4630400 小さな噴石の落下 75 1 +29.6588+129.7200/+29.6400+129.7388/+29.6200+129.7342/+29.6033+129.7200/+29.6200+129.7058/+29.6400+129.7012/+29.6588+129.7200/ 南東 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、１９日２１時から２４時までは火口から南西方向、２０日０９時から１２時までは火口から南方向に降灰が予想されます。 　１９日２１時から２０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 　１９日２１時から２４時まで　南西　　　　　　５０ｋｍ　　３ｋｍ　　　　　 　２０日００時から０３時まで　南西　　　　　　４０ｋｍ　　３ｋｍ　　　　　 　２０日０３時から０６時まで　南　　　　　　　５０ｋｍ　　３ｋｍ　　　　　 　２０日０６時から０９時まで　南　　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　２０日０９時から１２時まで　南　　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　２０日１２時から１５時まで　南　　　　　　　７０ｋｍ　　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。