2026-08-25T17:00:00Z 通常 気象庁本庁 気象庁 2026-08-26T02:00:00+09:00 2026-08-26T03:00:00+09:00 2026-08-26T21:00:00+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、２６日０９時から１２時までは火口から北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 2026-08-26T03:00:00+09:00 2026-08-26T06:00:00+09:00 降灰 70 +29.8807+129.0000/+29.8800+129.0094/+29.8793+129.0200/+29.8781+129.0400/+29.8767+129.0600/+29.8751+129.0800/+29.8735+129.1000/+29.8720+129.1200/+29.8706+129.1400/+29.8679+129.1600/+29.8635+129.1800/+29.8600+129.1943/+29.8588+129.2000/+29.8541+129.2200/+29.8500+129.2400/+29.8400+129.2590/+29.8397+129.2600/+29.8371+129.2800/+29.8334+129.3000/+29.8295+129.3200/+29.8267+129.3400/+29.8200+129.3483/+29.8144+129.3600/+29.8094+129.3800/+29.8029+129.4000/+29.8000+129.4065/+29.7975+129.4200/+29.7935+129.4400/+29.7800+129.4531/+29.7754+129.4600/+29.7689+129.4800/+29.7600+129.4922/+29.7588+129.5000/+29.7550+129.5200/+29.7403+129.5400/+29.7400+129.5403/+29.7380+129.5600/+29.7289+129.5800/+29.7200+129.5898/+29.7194+129.6000/+29.7167+129.6200/+29.7000+129.6375/+29.6998+129.6400/+29.6994+129.6600/+29.6960+129.6800/+29.6800+129.6962/+29.6798+129.7000/+29.6719+129.7200/+29.6600+129.7319/+29.6400+129.7376/+29.6224+129.7200/+29.6201+129.7000/+29.6201+129.6800/+29.6205+129.6600/+29.6246+129.6400/+29.6400+129.6245/+29.6402+129.6200/+29.6405+129.6000/+29.6419+129.5800/+29.6516+129.5600/+29.6600+129.5509/+29.6607+129.5400/+29.6619+129.5200/+29.6646+129.5000/+29.6768+129.4800/+29.6800+129.4757/+29.6813+129.4600/+29.6835+129.4400/+29.6867+129.4200/+29.6827+129.4000/+29.6976+129.3800/+29.7000+129.3755/+29.7016+129.3600/+29.7045+129.3400/+29.7095+129.3200/+29.7090+129.3000/+29.7200+129.2834/+29.7209+129.2800/+29.7245+129.2600/+29.7294+129.2400/+29.7333+129.2200/+29.7358+129.2000/+29.7400+129.1893/+29.7438+129.1800/+29.7538+129.1600/+29.7600+129.1469/+29.7627+129.1400/+29.7687+129.1200/+29.7753+129.1000/+29.7788+129.0800/+29.7800+129.0733/+29.7826+129.0600/+29.7876+129.0400/+29.7950+129.0200/+29.8000+129.0090/+29.8069+129.0000/+29.8186+128.9800/+29.8200+128.9775/+29.8299+128.9600/+29.8385+128.9400/+29.8400+128.9355/+29.8600+128.9238/+29.8666+128.9400/+29.8729+128.9600/+29.8776+128.9800/+29.8800+128.9946/+29.8807+129.0000/ 西 80 鹿児島県十島村 4630400 小さな噴石の落下 75 1 +29.6845+129.6600/+29.6865+129.6800/+29.6800+129.6865/+29.6781+129.7000/+29.6600+129.7181/+29.6400+129.7188/+29.6212+129.7000/+29.6243+129.6800/+29.6400+129.6643/+29.6524+129.6600/+29.6600+129.6452/+29.6800+129.6493/+29.6845+129.6600/ 北西 7 鹿児島県十島村 4630400 2026-08-26T06:00:00+09:00 2026-08-26T09:00:00+09:00 降灰 70 +29.9649+128.9800/+29.9770+129.0000/+29.9766+129.0200/+29.9764+129.0400/+29.9762+129.0600/+29.9761+129.0800/+29.9760+129.1000/+29.9709+129.1200/+29.9656+129.1400/+29.9600+129.1555/+29.9582+129.1600/+29.9495+129.1800/+29.9423+129.2000/+29.9400+129.2063/+29.9367+129.2200/+29.9323+129.2400/+29.9275+129.2600/+29.9202+129.2800/+29.9200+129.2804/+29.9121+129.3000/+29.9006+129.3200/+29.9000+129.3216/+29.8892+129.3400/+29.8800+129.3483/+29.8762+129.3600/+29.8720+129.3800/+29.8600+129.3953/+29.8570+129.4000/+29.8504+129.4200/+29.8400+129.4395/+29.8398+129.4400/+29.8266+129.4600/+29.8200+129.4644/+29.8100+129.4800/+29.8000+129.4913/+29.7974+129.5000/+29.7863+129.5200/+29.7800+129.5268/+29.7773+129.5400/+29.7600+129.5600/+29.7567+129.5800/+29.7400+129.5975/+29.7395+129.6000/+29.7342+129.6200/+29.7200+129.6343/+29.7194+129.6400/+29.7044+129.6600/+29.7000+129.6644/+29.6995+129.6800/+29.6800+129.7000/+29.6753+129.7200/+29.6600+129.7353/+29.6400+129.7379/+29.6221+129.7200/+29.6202+129.7000/+29.6204+129.6800/+29.6320+129.6600/+29.6400+129.6520/+29.6403+129.6400/+29.6431+129.6200/+29.6600+129.6029/+29.6604+129.6000/+29.6623+129.5800/+29.6800+129.5611/+29.6803+129.5600/+29.6822+129.5400/+29.6928+129.5200/+29.7000+129.5125/+29.7022+129.5000/+29.7082+129.4800/+29.7200+129.4656/+29.7214+129.4600/+29.7260+129.4400/+29.7270+129.4200/+29.7327+129.4000/+29.7400+129.3880/+29.7453+129.3800/+29.7594+129.3600/+29.7600+129.3593/+29.7656+129.3400/+29.7698+129.3200/+29.7749+129.3000/+29.7800+129.2879/+29.7849+129.2800/+29.7982+129.2600/+29.8000+129.2583/+29.8097+129.2400/+29.8139+129.2200/+29.8200+129.2070/+29.8239+129.2000/+29.8318+129.1800/+29.8400+129.1657/+29.8442+129.1600/+29.8567+129.1400/+29.8600+129.1336/+29.8659+129.1200/+29.8745+129.1000/+29.8800+129.0885/+29.8848+129.0800/+29.8990+129.0600/+29.9000+129.0584/+29.9200+129.0403/+29.9203+129.0400/+29.9316+129.0200/+29.9400+129.0029/+29.9439+129.0000/+29.9580+128.9800/+29.9600+128.9763/+29.9649+128.9800/ 北西 80 鹿児島県十島村 4630400 小さな噴石の落下 75 1 +29.6835+129.6600/+29.6879+129.6800/+29.6800+129.6879/+29.6785+129.7000/+29.6600+129.7185/+29.6400+129.7189/+29.6212+129.7000/+29.6359+129.6800/+29.6400+129.6759/+29.6551+129.6600/+29.6600+129.6529/+29.6800+129.6518/+29.6835+129.6600/ 北西 7 鹿児島県十島村 4630400 2026-08-26T09:00:00+09:00 2026-08-26T12:00:00+09:00 降灰 70 +30.1085+128.9400/+30.1108+128.9600/+30.1085+128.9800/+30.1068+129.0000/+30.1000+129.0136/+30.0866+129.0200/+30.0804+129.0400/+30.0800+129.0420/+30.0774+129.0600/+30.0743+129.0800/+30.0723+129.1000/+30.0639+129.1200/+30.0600+129.1270/+30.0518+129.1400/+30.0417+129.1600/+30.0400+129.1631/+30.0339+129.1800/+30.0274+129.2000/+30.0200+129.2172/+30.0185+129.2200/+30.0021+129.2400/+30.0000+129.2421/+29.9930+129.2600/+29.9870+129.2800/+29.9808+129.3000/+29.9800+129.3023/+29.9712+129.3200/+29.9600+129.3319/+29.9551+129.3400/+29.9400+129.3596/+29.9397+129.3600/+29.9251+129.3800/+29.9200+129.3837/+29.9144+129.4000/+29.9089+129.4200/+29.9000+129.4293/+29.8800+129.4373/+29.8789+129.4400/+29.8747+129.4600/+29.8641+129.4800/+29.8600+129.4845/+29.8526+129.5000/+29.8400+129.5119/+29.8200+129.5195/+29.8198+129.5200/+29.8134+129.5400/+29.8000+129.5537/+29.7971+129.5600/+29.7800+129.5782/+29.7793+129.5800/+29.7638+129.6000/+29.7600+129.6038/+29.7556+129.6200/+29.7400+129.6357/+29.7387+129.6400/+29.7200+129.6588/+29.7196+129.6600/+29.7007+129.6800/+29.7000+129.6807/+29.6978+129.7000/+29.6800+129.7178/+29.6777+129.7200/+29.6600+129.7377/+29.6400+129.7385/+29.6215+129.7200/+29.6202+129.7000/+29.6213+129.6800/+29.6400+129.6613/+29.6403+129.6600/+29.6545+129.6400/+29.6600+129.6345/+29.6617+129.6200/+29.6800+129.6015/+29.6806+129.6000/+29.6903+129.5800/+29.7000+129.5702/+29.7027+129.5600/+29.7200+129.5416/+29.7207+129.5400/+29.7282+129.5200/+29.7400+129.5074/+29.7431+129.5000/+29.7600+129.4814/+29.7608+129.4800/+29.7666+129.4600/+29.7699+129.4400/+29.7800+129.4232/+29.7816+129.4200/+29.7939+129.4000/+29.8000+129.3926/+29.8191+129.3800/+29.8200+129.3790/+29.8262+129.3600/+29.8297+129.3400/+29.8400+129.3331/+29.8478+129.3200/+29.8548+129.3000/+29.8600+129.2921/+29.8762+129.2800/+29.8766+129.2600/+29.8800+129.2554/+29.8983+129.2400/+29.9000+129.2383/+29.9101+129.2200/+29.9200+129.2031/+29.9219+129.2000/+29.9317+129.1800/+29.9400+129.1694/+29.9491+129.1600/+29.9600+129.1449/+29.9625+129.1400/+29.9723+129.1200/+29.9800+129.1069/+29.9846+129.1000/+29.9984+129.0800/+30.0000+129.0783/+30.0188+129.0600/+30.0200+129.0580/+30.0298+129.0400/+30.0400+129.0214/+30.0422+129.0200/+30.0600+129.0029/+30.0654+129.0000/+30.0800+128.9874/+30.0838+128.9800/+30.0889+128.9600/+30.0949+128.9400/+30.1000+128.9298/+30.1085+128.9400/ 北西 90 鹿児島県十島村 4630400 小さな噴石の落下 75 1 +29.6890+129.6800/+29.6800+129.6890/+29.6787+129.7000/+29.6600+129.7187/+29.6400+129.7188/+29.6212+129.7000/+29.6400+129.6812/+29.6464+129.6800/+29.6600+129.6614/+29.6800+129.6604/+29.6890+129.6800/ 北西 5 鹿児島県十島村 4630400 2026-08-26T12:00:00+09:00 2026-08-26T15:00:00+09:00 降灰 70 +30.2235+129.1000/+30.2200+129.1049/+30.2106+129.1200/+30.2009+129.1400/+30.2000+129.1414/+30.1846+129.1600/+30.1800+129.1665/+30.1732+129.1800/+30.1669+129.2000/+30.1600+129.2091/+30.1491+129.2200/+30.1400+129.2299/+30.1339+129.2400/+30.1235+129.2600/+30.1200+129.2648/+30.1042+129.2800/+30.1000+129.2829/+30.0878+129.3000/+30.0800+129.3156/+30.0772+129.3200/+30.0600+129.3386/+30.0588+129.3400/+30.0453+129.3600/+30.0400+129.3671/+30.0316+129.3800/+30.0200+129.3919/+30.0000+129.3983/+29.9989+129.4000/+29.9908+129.4200/+29.9800+129.4316/+29.9622+129.4400/+29.9600+129.4421/+29.9540+129.4600/+29.9400+129.4757/+29.9341+129.4800/+29.9200+129.4893/+29.9111+129.5000/+29.9000+129.5157/+29.8957+129.5200/+29.8800+129.5310/+29.8600+129.5379/+29.8574+129.5400/+29.8400+129.5574/+29.8376+129.5600/+29.8200+129.5773/+29.8180+129.5800/+29.8000+129.5983/+29.7987+129.6000/+29.7800+129.6185/+29.7787+129.6200/+29.7600+129.6386/+29.7590+129.6400/+29.7400+129.6589/+29.7392+129.6600/+29.7200+129.6792/+29.7194+129.6800/+29.7000+129.6994/+29.6997+129.7000/+29.6800+129.7197/+29.6791+129.7200/+29.6600+129.7391/+29.6400+129.7392/+29.6208+129.7200/+29.6202+129.7000/+29.6278+129.6800/+29.6400+129.6678/+29.6435+129.6600/+29.6600+129.6435/+29.6626+129.6400/+29.6800+129.6226/+29.6825+129.6200/+29.7000+129.6025/+29.7024+129.6000/+29.7200+129.5823/+29.7221+129.5800/+29.7400+129.5619/+29.7419+129.5600/+29.7600+129.5412/+29.7613+129.5400/+29.7800+129.5208/+29.7808+129.5200/+29.8000+129.5001/+29.8001+129.5000/+29.8134+129.4800/+29.8200+129.4660/+29.8211+129.4600/+29.8397+129.4400/+29.8400+129.4396/+29.8513+129.4200/+29.8600+129.4107/+29.8731+129.4000/+29.8800+129.3904/+29.8851+129.3800/+29.9000+129.3643/+29.9074+129.3600/+29.9200+129.3466/+29.9243+129.3400/+29.9371+129.3200/+29.9400+129.3163/+29.9600+129.3040/+29.9644+129.3000/+29.9757+129.2800/+29.9800+129.2750/+30.0000+129.2606/+30.0010+129.2600/+30.0200+129.2409/+30.0208+129.2400/+30.0397+129.2200/+30.0400+129.2198/+30.0600+129.2045/+30.0641+129.2000/+30.0800+129.1801/+30.0801+129.1800/+30.1000+129.1639/+30.1086+129.1600/+30.1200+129.1505/+30.1290+129.1400/+30.1400+129.1277/+30.1530+129.1200/+30.1600+129.1144/+30.1731+129.1000/+30.1800+129.0929/+30.1919+129.0800/+30.2000+129.0709/+30.2167+129.0800/+30.2200+129.0858/+30.2235+129.1000/ 北西 90 鹿児島県十島村 4630400 小さな噴石の落下 75 1 +29.6911+129.6800/+29.6869+129.7000/+29.6800+129.7069/+29.6600+129.7186/+29.6400+129.7188/+29.6212+129.7000/+29.6400+129.6812/+29.6506+129.6800/+29.6600+129.6706/+29.6800+129.6678/+29.6911+129.6800/ 北西 5 鹿児島県十島村 4630400 2026-08-26T15:00:00+09:00 2026-08-26T18:00:00+09:00 降灰 70 +30.2405+129.1000/+30.2400+129.1004/+30.2391+129.1000/+30.2400+129.0996/+30.2405+129.1000/ +30.2091+129.1200/+30.2170+129.1400/+30.2104+129.1600/+30.2000+129.1726/+30.1884+129.1800/+30.1819+129.2000/+30.1800+129.2027/+30.1673+129.2200/+30.1600+129.2297/+30.1510+129.2400/+30.1400+129.2550/+30.1372+129.2600/+30.1222+129.2800/+30.1200+129.2830/+30.1079+129.3000/+30.1000+129.3084/+30.0914+129.3200/+30.0800+129.3398/+30.0799+129.3400/+30.0687+129.3600/+30.0600+129.3689/+30.0482+129.3800/+30.0400+129.3870/+30.0307+129.4000/+30.0200+129.4169/+30.0151+129.4200/+30.0000+129.4250/+29.9893+129.4400/+29.9800+129.4572/+29.9772+129.4600/+29.9600+129.4693/+29.9513+129.4800/+29.9400+129.4903/+29.9248+129.5000/+29.9200+129.5069/+29.9125+129.5200/+29.9000+129.5328/+29.8889+129.5400/+29.8800+129.5459/+29.8600+129.5540/+29.8535+129.5600/+29.8400+129.5733/+29.8324+129.5800/+29.8200+129.5922/+29.8111+129.6000/+29.8000+129.6110/+29.7896+129.6200/+29.7800+129.6296/+29.7644+129.6400/+29.7600+129.6444/+29.7400+129.6598/+29.7398+129.6600/+29.7200+129.6797/+29.7197+129.6800/+29.7000+129.6997/+29.6998+129.7000/+29.6800+129.7198/+29.6794+129.7200/+29.6600+129.7394/+29.6400+129.7395/+29.6205+129.7200/+29.6202+129.7000/+29.6300+129.6800/+29.6400+129.6700/+29.6466+129.6600/+29.6600+129.6466/+29.6669+129.6400/+29.6800+129.6269/+29.6864+129.6200/+29.7000+129.6064/+29.7075+129.6000/+29.7200+129.5874/+29.7269+129.5800/+29.7400+129.5668/+29.7461+129.5600/+29.7600+129.5459/+29.7665+129.5400/+29.7800+129.5263/+29.7867+129.5200/+29.8000+129.5065/+29.8082+129.5000/+29.8200+129.4876/+29.8236+129.4800/+29.8316+129.4600/+29.8400+129.4512/+29.8586+129.4400/+29.8600+129.4382/+29.8793+129.4200/+29.8800+129.4194/+29.8951+129.4000/+29.9000+129.3911/+29.9105+129.3800/+29.9200+129.3744/+29.9363+129.3600/+29.9400+129.3537/+29.9513+129.3400/+29.9600+129.3297/+29.9693+129.3200/+29.9800+129.3117/+30.0000+129.3011/+30.0018+129.3000/+30.0176+129.2800/+30.0200+129.2775/+30.0400+129.2611/+30.0420+129.2600/+30.0600+129.2452/+30.0647+129.2400/+30.0800+129.2225/+30.0823+129.2200/+30.1000+129.2028/+30.1042+129.2000/+30.1200+129.1869/+30.1279+129.1800/+30.1400+129.1689/+30.1554+129.1600/+30.1600+129.1563/+30.1789+129.1400/+30.1800+129.1390/+30.1967+129.1200/+30.2000+129.1151/+30.2091+129.1200/ 北西 90 鹿児島県十島村 4630400 小さな噴石の落下 75 1 +29.6869+129.6800/+29.6866+129.7000/+29.6800+129.7066/+29.6600+129.7182/+29.6588+129.7200/+29.6400+129.7388/+29.6212+129.7200/+29.6212+129.7000/+29.6400+129.6812/+29.6566+129.6800/+29.6600+129.6766/+29.6800+129.6745/+29.6869+129.6800/ 北西 5 鹿児島県十島村 4630400 2026-08-26T18:00:00+09:00 2026-08-26T21:00:00+09:00 降灰 70 +30.1423+129.1800/+30.1511+129.2000/+30.1400+129.2100/+30.1300+129.2200/+30.1215+129.2400/+30.1200+129.2431/+30.1120+129.2600/+30.1000+129.2719/+30.0907+129.2800/+30.0811+129.3000/+30.0800+129.3020/+30.0664+129.3200/+30.0600+129.3258/+30.0460+129.3400/+30.0400+129.3482/+30.0343+129.3600/+30.0200+129.3790/+30.0189+129.3800/+30.0000+129.3896/+29.9924+129.4000/+29.9812+129.4200/+29.9800+129.4212/+29.9600+129.4327/+29.9545+129.4400/+29.9458+129.4600/+29.9400+129.4662/+29.9200+129.4778/+29.9182+129.4800/+29.9000+129.4971/+29.8958+129.5000/+29.8800+129.5157/+29.8781+129.5200/+29.8600+129.5347/+29.8452+129.5400/+29.8400+129.5452/+29.8273+129.5600/+29.8200+129.5675/+29.8099+129.5800/+29.8000+129.5911/+29.7942+129.6000/+29.7800+129.6139/+29.7750+129.6200/+29.7600+129.6351/+29.7567+129.6400/+29.7400+129.6563/+29.7374+129.6600/+29.7200+129.6772/+29.7184+129.6800/+29.7000+129.6984/+29.6995+129.7000/+29.6800+129.7195/+29.6794+129.7200/+29.6600+129.7394/+29.6400+129.7396/+29.6204+129.7200/+29.6201+129.7000/+29.6222+129.6800/+29.6400+129.6622/+29.6410+129.6600/+29.6600+129.6409/+29.6609+129.6400/+29.6800+129.6208/+29.6807+129.6200/+29.7000+129.6005/+29.7005+129.6000/+29.7167+129.5800/+29.7200+129.5767/+29.7311+129.5600/+29.7400+129.5510/+29.7472+129.5400/+29.7600+129.5270/+29.7660+129.5200/+29.7800+129.5053/+29.7839+129.5000/+29.8000+129.4830/+29.8034+129.4800/+29.8071+129.4600/+29.8200+129.4506/+29.8305+129.4400/+29.8400+129.4263/+29.8454+129.4200/+29.8600+129.4061/+29.8682+129.4000/+29.8800+129.3844/+29.8829+129.3800/+29.9000+129.3636/+29.9060+129.3600/+29.9200+129.3460/+29.9246+129.3400/+29.9384+129.3200/+29.9400+129.3179/+29.9600+129.3070/+29.9688+129.3000/+29.9800+129.2853/+29.9859+129.2800/+30.0000+129.2712/+30.0200+129.2614/+30.0220+129.2600/+30.0400+129.2418/+30.0425+129.2400/+30.0600+129.2283/+30.0717+129.2200/+30.0800+129.2099/+30.0851+129.2000/+30.1000+129.1843/+30.1200+129.1830/+30.1359+129.1800/+30.1400+129.1783/+30.1423+129.1800/ 北西 80 鹿児島県十島村 4630400 小さな噴石の落下 75 1 +29.6809+129.6800/+29.6800+129.7000/+29.6600+129.7178/+29.6588+129.7200/+29.6400+129.7388/+29.6212+129.7200/+29.6212+129.7000/+29.6400+129.6812/+29.6563+129.6800/+29.6600+129.6763/+29.6800+129.6790/+29.6809+129.6800/ 北西 5 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、２６日０９時から１２時までは火口から北西方向に降灰が予想されます。 　２６日３時から２６日２１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 　２６日０３時から０６時まで　西　　　　　　　８０ｋｍ　　７ｋｍ　　　　　 　２６日０６時から０９時まで　北西　　　　　　８０ｋｍ　　７ｋｍ　　　　　 　２６日０９時から１２時まで　北西　　　　　　９０ｋｍ　　５ｋｍ　　　　　 　２６日１２時から１５時まで　北西　　　　　　９０ｋｍ　　５ｋｍ　　　　　 　２６日１５時から１８時まで　北西　　　　　　９０ｋｍ　　５ｋｍ　　　　　 　２６日１８時から２１時まで　北西　　　　　　８０ｋｍ　　５ｋｍ　　　　　 　 　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。 　強風のため、遠方まで小さな噴石が流されるおそれがあります。