2026-08-24T14:00:00Z 通常 気象庁本庁 気象庁 2026-08-24T23:00:00+09:00 2026-08-25T00:00:00+09:00 2026-08-25T18:00:00+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、２５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 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 2026-08-25T00:00:00+09:00 2026-08-25T03:00:00+09:00 降灰 70 +29.6753+129.6800/+29.6779+129.7000/+29.6600+129.7199/+29.6600+129.7200/+29.6400+129.7395/+29.6201+129.7200/+29.6200+129.7199/+29.6003+129.7000/+29.6001+129.6800/+29.6000+129.6604/+29.5996+129.6600/+29.5817+129.6400/+29.5807+129.6200/+29.5802+129.6000/+29.5800+129.5957/+29.5675+129.5800/+29.5629+129.5600/+29.5613+129.5400/+29.5600+129.5246/+29.5568+129.5200/+29.5489+129.5000/+29.5448+129.4800/+29.5431+129.4600/+29.5400+129.4410/+29.5393+129.4400/+29.5288+129.4200/+29.5269+129.4000/+29.5241+129.3800/+29.5214+129.3600/+29.5200+129.3444/+29.5189+129.3400/+29.5128+129.3200/+29.5142+129.3000/+29.5158+129.2800/+29.5146+129.2600/+29.5135+129.2400/+29.5152+129.2200/+29.5136+129.2000/+29.5134+129.1800/+29.5130+129.1600/+29.5141+129.1400/+29.5175+129.1200/+29.5200+129.1085/+29.5223+129.1000/+29.5298+129.0800/+29.5400+129.0623/+29.5600+129.0702/+29.5641+129.0800/+29.5709+129.1000/+29.5787+129.1200/+29.5800+129.1235/+29.5859+129.1400/+29.5933+129.1600/+29.6000+129.1766/+29.6013+129.1800/+29.6059+129.2000/+29.6094+129.2200/+29.6123+129.2400/+29.6177+129.2600/+29.6200+129.2715/+29.6215+129.2800/+29.6201+129.3000/+29.6235+129.3200/+29.6273+129.3400/+29.6299+129.3600/+29.6318+129.3800/+29.6339+129.4000/+29.6316+129.4200/+29.6351+129.4400/+29.6369+129.4600/+29.6382+129.4800/+29.6391+129.5000/+29.6397+129.5200/+29.6400+129.5266/+29.6456+129.5400/+29.6529+129.5600/+29.6564+129.5800/+29.6584+129.6000/+29.6593+129.6200/+29.6597+129.6400/+29.6599+129.6600/+29.6600+129.6640/+29.6753+129.6800/ 西 60 鹿児島県十島村 4630400 小さな噴石の落下 75 1 +29.6500+129.6800/+29.6588+129.7000/+29.6400+129.7188/+29.6212+129.7000/+29.6268+129.6800/+29.6400+129.6657/+29.6500+129.6800/ 西 3 鹿児島県十島村 4630400 2026-08-25T03:00:00+09:00 2026-08-25T06:00:00+09:00 降灰 70 +29.6702+129.7000/+29.6600+129.7113/+29.6594+129.7200/+29.6400+129.7393/+29.6200+129.7200/+29.6003+129.7000/+29.6001+129.6800/+29.6000+129.6733/+29.5867+129.6600/+29.5807+129.6400/+29.5803+129.6200/+29.5800+129.6097/+29.5706+129.6000/+29.5622+129.5800/+29.5608+129.5600/+29.5600+129.5463/+29.5546+129.5400/+29.5442+129.5200/+29.5421+129.5000/+29.5400+129.4833/+29.5372+129.4800/+29.5260+129.4600/+29.5232+129.4400/+29.5200+129.4276/+29.5108+129.4200/+29.5030+129.4000/+29.5000+129.3883/+29.4971+129.3800/+29.4939+129.3600/+29.4899+129.3400/+29.4850+129.3200/+29.4828+129.3000/+29.4800+129.2800/+29.4800+129.2798/+29.4709+129.2600/+29.4647+129.2400/+29.4624+129.2200/+29.4606+129.2000/+29.4600+129.1898/+29.4590+129.1800/+29.4568+129.1600/+29.4547+129.1400/+29.4529+129.1200/+29.4507+129.1000/+29.4474+129.0800/+29.4425+129.0600/+29.4400+129.0509/+29.4384+129.0400/+29.4361+129.0200/+29.4334+129.0000/+29.4382+128.9800/+29.4400+128.9740/+29.4600+128.9705/+29.4651+128.9800/+29.4767+129.0000/+29.4800+129.0092/+29.4856+129.0200/+29.5000+129.0344/+29.5020+129.0400/+29.5098+129.0600/+29.5171+129.0800/+29.5200+129.0894/+29.5229+129.1000/+29.5280+129.1200/+29.5326+129.1400/+29.5389+129.1600/+29.5400+129.1627/+29.5490+129.1800/+29.5577+129.2000/+29.5568+129.2200/+29.5600+129.2355/+29.5621+129.2400/+29.5756+129.2600/+29.5800+129.2719/+29.5822+129.2800/+29.5880+129.3000/+29.5817+129.3200/+29.5941+129.3400/+29.5997+129.3600/+29.6000+129.3616/+29.6055+129.3800/+29.6122+129.4000/+29.6041+129.4200/+29.6103+129.4400/+29.6152+129.4600/+29.6179+129.4800/+29.6193+129.5000/+29.6200+129.5076/+29.6291+129.5200/+29.6363+129.5400/+29.6386+129.5600/+29.6394+129.5800/+29.6399+129.6000/+29.6400+129.6023/+29.6559+129.6200/+29.6594+129.6400/+29.6599+129.6600/+29.6600+129.6800/+29.6600+129.6841/+29.6702+129.7000/ 西 70 鹿児島県十島村 4630400 小さな噴石の落下 75 1 +29.6523+129.6800/+29.6588+129.7000/+29.6400+129.7188/+29.6212+129.7000/+29.6231+129.6800/+29.6400+129.6614/+29.6523+129.6800/ 西 3 鹿児島県十島村 4630400 2026-08-25T06:00:00+09:00 2026-08-25T09:00:00+09:00 降灰 70 +29.6727+129.6800/+29.6736+129.7000/+29.6600+129.7148/+29.6591+129.7200/+29.6400+129.7388/+29.6209+129.7200/+29.6200+129.7194/+29.6007+129.7000/+29.6002+129.6800/+29.6001+129.6600/+29.6000+129.6456/+29.5944+129.6400/+29.5822+129.6200/+29.5809+129.6000/+29.5806+129.5800/+29.5801+129.5600/+29.5800+129.5586/+29.5675+129.5400/+29.5641+129.5200/+29.5621+129.5000/+29.5610+129.4800/+29.5600+129.4631/+29.5583+129.4600/+29.5505+129.4400/+29.5408+129.4200/+29.5400+129.4150/+29.5357+129.4000/+29.5317+129.3800/+29.5290+129.3600/+29.5275+129.3400/+29.5255+129.3200/+29.5233+129.3000/+29.5218+129.2800/+29.5200+129.2621/+29.5192+129.2600/+29.5129+129.2400/+29.5118+129.2200/+29.5076+129.2000/+29.5070+129.1800/+29.5061+129.1600/+29.5051+129.1400/+29.5039+129.1200/+29.5022+129.1000/+29.5029+129.0800/+29.5038+129.0600/+29.5032+129.0400/+29.5002+129.0200/+29.5000+129.0191/+29.4974+129.0000/+29.4978+128.9800/+29.4982+128.9600/+29.4984+128.9400/+29.4982+128.9200/+29.4980+128.9000/+29.4998+128.8800/+29.5000+128.8774/+29.5008+128.8800/+29.5082+128.9000/+29.5200+128.9174/+29.5261+128.9200/+29.5400+128.9229/+29.5501+128.9400/+29.5600+128.9566/+29.5609+128.9600/+29.5652+128.9800/+29.5689+129.0000/+29.5721+129.0200/+29.5750+129.0400/+29.5786+129.0600/+29.5800+129.0662/+29.5830+129.0800/+29.5870+129.1000/+29.5910+129.1200/+29.5948+129.1400/+29.6000+129.1598/+29.6001+129.1600/+29.6095+129.1800/+29.6105+129.2000/+29.6164+129.2200/+29.6200+129.2377/+29.6204+129.2400/+29.6241+129.2600/+29.6267+129.2800/+29.6240+129.3000/+29.6278+129.3200/+29.6304+129.3400/+29.6328+129.3600/+29.6347+129.3800/+29.6363+129.4000/+29.6341+129.4200/+29.6362+129.4400/+29.6378+129.4600/+29.6387+129.4800/+29.6396+129.5000/+29.6400+129.5156/+29.6419+129.5200/+29.6508+129.5400/+29.6556+129.5600/+29.6579+129.5800/+29.6591+129.6000/+29.6596+129.6200/+29.6598+129.6400/+29.6600+129.6600/+29.6600+129.6650/+29.6727+129.6800/ 西 80 鹿児島県十島村 4630400 小さな噴石の落下 75 1 +29.6424+129.6600/+29.6545+129.6800/+29.6588+129.7000/+29.6400+129.7188/+29.6212+129.7000/+29.6234+129.6800/+29.6360+129.6600/+29.6400+129.6553/+29.6424+129.6600/ 西 5 鹿児島県十島村 4630400 2026-08-25T09:00:00+09:00 2026-08-25T12:00:00+09:00 降灰 70 +29.6749+129.6600/+29.6781+129.6800/+29.6776+129.7000/+29.6600+129.7187/+29.6592+129.7200/+29.6400+129.7385/+29.6215+129.7200/+29.6200+129.7175/+29.6025+129.7000/+29.6004+129.6800/+29.6002+129.6600/+29.6002+129.6400/+29.6001+129.6200/+29.6000+129.6067/+29.5938+129.6000/+29.5844+129.5800/+29.5823+129.5600/+29.5816+129.5400/+29.5811+129.5200/+29.5806+129.5000/+29.5800+129.4844/+29.5774+129.4800/+29.5701+129.4600/+29.5666+129.4400/+29.5640+129.4200/+29.5600+129.4108/+29.5496+129.4000/+29.5487+129.3800/+29.5475+129.3600/+29.5463+129.3400/+29.5450+129.3200/+29.5400+129.3060/+29.5366+129.3000/+29.5361+129.2800/+29.5360+129.2600/+29.5359+129.2400/+29.5355+129.2200/+29.5298+129.2000/+29.5305+129.1800/+29.5312+129.1600/+29.5315+129.1400/+29.5316+129.1200/+29.5316+129.1000/+29.5335+129.0800/+29.5357+129.0600/+29.5357+129.0400/+29.5333+129.0200/+29.5312+129.0000/+29.5321+128.9800/+29.5331+128.9600/+29.5348+128.9400/+29.5376+128.9200/+29.5400+128.9048/+29.5424+128.9000/+29.5478+128.8800/+29.5583+128.8600/+29.5600+128.8572/+29.5606+128.8600/+29.5681+128.8800/+29.5795+128.9000/+29.5800+128.9006/+29.5989+128.9200/+29.6000+128.9210/+29.6051+128.9400/+29.6092+128.9600/+29.6124+128.9800/+29.6153+129.0000/+29.6192+129.0200/+29.6200+129.0249/+29.6224+129.0400/+29.6249+129.0600/+29.6268+129.0800/+29.6285+129.1000/+29.6310+129.1200/+29.6330+129.1400/+29.6353+129.1600/+29.6375+129.1800/+29.6342+129.2000/+29.6358+129.2200/+29.6371+129.2400/+29.6383+129.2600/+29.6394+129.2800/+29.6379+129.3000/+29.6390+129.3200/+29.6397+129.3400/+29.6400+129.3441/+29.6464+129.3600/+29.6535+129.3800/+29.6576+129.4000/+29.6436+129.4200/+29.6501+129.4400/+29.6542+129.4600/+29.6563+129.4800/+29.6576+129.5000/+29.6584+129.5200/+29.6589+129.5400/+29.6593+129.5600/+29.6596+129.5800/+29.6598+129.6000/+29.6599+129.6200/+29.6600+129.6400/+29.6600+129.6421/+29.6749+129.6600/ 西 80 鹿児島県十島村 4630400 小さな噴石の落下 75 1 +29.6470+129.6600/+29.6556+129.6800/+29.6588+129.7000/+29.6400+129.7188/+29.6212+129.7000/+29.6244+129.6800/+29.6318+129.6600/+29.6400+129.6474/+29.6470+129.6600/ 西 5 鹿児島県十島村 4630400 2026-08-25T12:00:00+09:00 2026-08-25T15:00:00+09:00 降灰 70 +29.6624+129.1400/+29.6664+129.1600/+29.6707+129.1800/+29.6667+129.2000/+29.6685+129.2200/+29.6699+129.2400/+29.6714+129.2600/+29.6725+129.2800/+29.6714+129.3000/+29.6724+129.3200/+29.6743+129.3400/+29.6753+129.3600/+29.6757+129.3800/+29.6769+129.4000/+29.6676+129.4200/+29.6701+129.4400/+29.6710+129.4600/+29.6726+129.4800/+29.6740+129.5000/+29.6749+129.5200/+29.6757+129.5400/+29.6762+129.5600/+29.6767+129.5800/+29.6772+129.6000/+29.6776+129.6200/+29.6781+129.6400/+29.6790+129.6600/+29.6793+129.6800/+29.6788+129.7000/+29.6600+129.7196/+29.6593+129.7200/+29.6400+129.7380/+29.6220+129.7200/+29.6200+129.7000/+29.6017+129.6800/+29.6006+129.6600/+29.6005+129.6400/+29.6004+129.6200/+29.6005+129.6000/+29.6005+129.5800/+29.6006+129.5600/+29.6006+129.5400/+29.6004+129.5200/+29.6002+129.5000/+29.6000+129.4952/+29.5914+129.4800/+29.5888+129.4600/+29.5879+129.4400/+29.5860+129.4200/+29.5821+129.4000/+29.5819+129.3800/+29.5815+129.3600/+29.5808+129.3400/+29.5800+129.3221/+29.5794+129.3200/+29.5675+129.3000/+29.5676+129.2800/+29.5672+129.2600/+29.5667+129.2400/+29.5657+129.2200/+29.5600+129.2009/+29.5594+129.2000/+29.5600+129.1860/+29.5602+129.1800/+29.5608+129.1600/+29.5613+129.1400/+29.5619+129.1200/+29.5625+129.1000/+29.5620+129.0800/+29.5614+129.0600/+29.5614+129.0400/+29.5622+129.0200/+29.5634+129.0000/+29.5638+128.9800/+29.5643+128.9600/+29.5652+128.9400/+29.5664+128.9200/+29.5678+128.9000/+29.5692+128.8800/+29.5711+128.8600/+29.5746+128.8400/+29.5800+128.8233/+29.5814+128.8200/+29.5957+128.8000/+29.6000+128.7885/+29.6010+128.8000/+29.6065+128.8200/+29.6112+128.8400/+29.6147+128.8600/+29.6173+128.8800/+29.6195+128.9000/+29.6200+128.9040/+29.6218+128.9200/+29.6241+128.9400/+29.6268+128.9600/+29.6297+128.9800/+29.6325+129.0000/+29.6374+129.0200/+29.6400+129.0314/+29.6424+129.0400/+29.6473+129.0600/+29.6516+129.0800/+29.6556+129.1000/+29.6591+129.1200/+29.6600+129.1256/+29.6624+129.1400/ 西 90 鹿児島県十島村 4630400 小さな噴石の落下 75 1 +29.6642+129.6600/+29.6600+129.6642/+29.6557+129.6800/+29.6588+129.7000/+29.6400+129.7188/+29.6212+129.7000/+29.6243+129.6800/+29.6331+129.6600/+29.6400+129.6469/+29.6600+129.6497/+29.6642+129.6600/ 西 6 鹿児島県十島村 4630400 2026-08-25T15:00:00+09:00 2026-08-25T18:00:00+09:00 降灰 70 +29.6813+129.1200/+29.6831+129.1400/+29.6851+129.1600/+29.6871+129.1800/+29.6825+129.2000/+29.6870+129.2200/+29.6904+129.2400/+29.6926+129.2600/+29.6944+129.2800/+29.6970+129.3000/+29.6910+129.3200/+29.6923+129.3400/+29.6932+129.3600/+29.6938+129.3800/+29.6945+129.4000/+29.6800+129.4185/+29.6796+129.4200/+29.6797+129.4400/+29.6794+129.4600/+29.6793+129.4800/+29.6792+129.5000/+29.6792+129.5200/+29.6793+129.5400/+29.6793+129.5600/+29.6794+129.5800/+29.6794+129.6000/+29.6795+129.6200/+29.6795+129.6400/+29.6796+129.6600/+29.6797+129.6800/+29.6792+129.7000/+29.6600+129.7198/+29.6595+129.7200/+29.6400+129.7377/+29.6223+129.7200/+29.6201+129.7000/+29.6200+129.6859/+29.6143+129.6800/+29.6036+129.6600/+29.6022+129.6400/+29.6021+129.6200/+29.6021+129.6000/+29.6022+129.5800/+29.6023+129.5600/+29.6024+129.5400/+29.6024+129.5200/+29.6026+129.5000/+29.6025+129.4800/+29.6027+129.4600/+29.6026+129.4400/+29.6026+129.4200/+29.6000+129.4110/+29.5900+129.4000/+29.5897+129.3800/+29.5893+129.3600/+29.5890+129.3400/+29.5888+129.3200/+29.5823+129.3000/+29.5831+129.2800/+29.5831+129.2600/+29.5830+129.2400/+29.5829+129.2200/+29.5800+129.2093/+29.5770+129.2000/+29.5762+129.1800/+29.5754+129.1600/+29.5753+129.1400/+29.5760+129.1200/+29.5768+129.1000/+29.5769+129.0800/+29.5770+129.0600/+29.5773+129.0400/+29.5779+129.0200/+29.5785+129.0000/+29.5792+128.9800/+29.5799+128.9600/+29.5800+128.9535/+29.5802+128.9400/+29.5801+128.9200/+29.5800+128.9111/+29.5799+128.9000/+29.5800+128.8995/+29.5840+128.8800/+29.5893+128.8600/+29.5932+128.8400/+29.5944+128.8200/+29.5957+128.8000/+29.5994+128.7800/+29.6000+128.7774/+29.6007+128.7800/+29.6066+128.8000/+29.6086+128.8200/+29.6105+128.8400/+29.6176+128.8600/+29.6200+128.8640/+29.6295+128.8800/+29.6400+128.8986/+29.6406+128.9000/+29.6444+128.9200/+29.6482+128.9400/+29.6547+128.9600/+29.6600+128.9717/+29.6622+128.9800/+29.6668+129.0000/+29.6705+129.0200/+29.6735+129.0400/+29.6758+129.0600/+29.6776+129.0800/+29.6792+129.1000/+29.6800+129.1071/+29.6813+129.1200/ 西 90 鹿児島県十島村 4630400 小さな噴石の落下 75 1 +29.6676+129.6600/+29.6735+129.6800/+29.6600+129.6935/+29.6588+129.7000/+29.6400+129.7188/+29.6212+129.7000/+29.6241+129.6800/+29.6320+129.6600/+29.6400+129.6446/+29.6600+129.6447/+29.6676+129.6600/ 西 6 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、２５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。 　２５日０時から２５日１８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 　２５日００時から０３時まで　西　　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　２５日０３時から０６時まで　西　　　　　　　７０ｋｍ　　３ｋｍ　　　　　 　２５日０６時から０９時まで　西　　　　　　　８０ｋｍ　　５ｋｍ　　　　　 　２５日０９時から１２時まで　西　　　　　　　８０ｋｍ　　５ｋｍ　　　　　 　２５日１２時から１５時まで　西　　　　　　　９０ｋｍ　　６ｋｍ　　　　　 　２５日１５時から１８時まで　西　　　　　　　９０ｋｍ　　６ｋｍ　　　　　 　 　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。