2026-07-09T11:00:00Z 通常 気象庁本庁 気象庁 2026-07-09T20:00:00+09:00 2026-07-09T21:00:00+09:00 2026-07-10T15:00:00+09:00 509 発表 1 降灰予報 1.1_0 　現在、口永良部島は噴火警戒レベル２（火口周辺規制）です。口永良部島で噴火が発生した場合には、９日２１時から２４時までは火口から西方向、１０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 口永良部島 509 降灰 70 鹿児島県屋久島町 4650500 小さな噴石の落下 75 鹿児島県屋久島町 4650500 降灰予報（定時） 06 口永良部島 509 +3026.60+13013.03+657/ 降灰 70 鹿児島県屋久島町 4650500 小さな噴石の落下 75 鹿児島県屋久島町 4650500 2026-07-09T21:00:00+09:00 2026-07-10T00:00:00+09:00 降灰 70 +30.6201+129.7400/+30.6208+129.7600/+30.6200+129.7638/+30.6169+129.7800/+30.6137+129.8000/+30.6084+129.8200/+30.6018+129.8400/+30.6000+129.8416/+30.5929+129.8600/+30.5899+129.8800/+30.5855+129.9000/+30.5800+129.9141/+30.5781+129.9200/+30.5711+129.9400/+30.5600+129.9521/+30.5577+129.9600/+30.5540+129.9800/+30.5497+130.0000/+30.5400+130.0153/+30.5392+130.0200/+30.5361+130.0400/+30.5316+130.0600/+30.5200+130.0762/+30.5195+130.0800/+30.5178+130.1000/+30.5125+130.1200/+30.5000+130.1336/+30.4995+130.1400/+30.4990+130.1600/+30.4956+130.1800/+30.4800+130.1962/+30.4800+130.2000/+30.4799+130.2200/+30.4600+130.2399/+30.4400+130.2399/+30.4201+130.2200/+30.4200+130.2000/+30.4201+130.1800/+30.4203+130.1600/+30.4208+130.1400/+30.4222+130.1200/+30.4263+130.1000/+30.4324+130.0800/+30.4400+130.0656/+30.4409+130.0600/+30.4466+130.0400/+30.4574+130.0200/+30.4600+130.0157/+30.4633+130.0000/+30.4664+129.9800/+30.4800+129.9603/+30.4801+129.9600/+30.4834+129.9400/+30.4887+129.9200/+30.4912+129.9000/+30.4994+129.8800/+30.5000+129.8786/+30.5085+129.8600/+30.5198+129.8400/+30.5200+129.8397/+30.5279+129.8200/+30.5352+129.8000/+30.5400+129.7856/+30.5423+129.7800/+30.5539+129.7600/+30.5600+129.7505/+30.5717+129.7400/+30.5800+129.7299/+30.5895+129.7200/+30.6000+129.7068/+30.6099+129.7200/+30.6200+129.7398/+30.6201+129.7400/ 西 50 鹿児島県屋久島町 4650500 小さな噴石の落下 75 1 +30.4731+130.2000/+30.4646+130.2200/+30.4600+130.2246/+30.4400+130.2388/+30.4212+130.2200/+30.4247+130.2000/+30.4400+130.1839/+30.4600+130.1855/+30.4731+130.2000/ 北西 2 鹿児島県屋久島町 4650500 2026-07-10T00:00:00+09:00 2026-07-10T03:00:00+09:00 降灰 70 +30.6222+129.7200/+30.6323+129.7400/+30.6325+129.7600/+30.6259+129.7800/+30.6216+129.8000/+30.6200+129.8064/+30.6166+129.8200/+30.6117+129.8400/+30.6000+129.8587/+30.5996+129.8600/+30.5947+129.8800/+30.5905+129.9000/+30.5849+129.9200/+30.5800+129.9342/+30.5786+129.9400/+30.5650+129.9600/+30.5600+129.9665/+30.5565+129.9800/+30.5514+130.0000/+30.5400+130.0194/+30.5399+130.0200/+30.5373+130.0400/+30.5326+130.0600/+30.5200+130.0772/+30.5197+130.0800/+30.5182+130.1000/+30.5141+130.1200/+30.5000+130.1350/+30.4996+130.1400/+30.4992+130.1600/+30.4969+130.1800/+30.4800+130.1977/+30.4800+130.2000/+30.4799+130.2200/+30.4600+130.2399/+30.4400+130.2399/+30.4201+130.2200/+30.4200+130.2000/+30.4201+130.1800/+30.4205+130.1600/+30.4214+130.1400/+30.4242+130.1200/+30.4316+130.1000/+30.4400+130.0885/+30.4417+130.0800/+30.4458+130.0600/+30.4510+130.0400/+30.4600+130.0241/+30.4609+130.0200/+30.4657+130.0000/+30.4695+129.9800/+30.4800+129.9658/+30.4829+129.9600/+30.4944+129.9400/+30.5000+129.9204/+30.5001+129.9200/+30.5000+129.9141/+30.4997+129.9000/+30.5000+129.8992/+30.5066+129.8800/+30.5165+129.8600/+30.5200+129.8535/+30.5261+129.8400/+30.5367+129.8200/+30.5400+129.8133/+30.5477+129.8000/+30.5587+129.7800/+30.5600+129.7781/+30.5715+129.7600/+30.5800+129.7439/+30.5822+129.7400/+30.5952+129.7200/+30.6000+129.7118/+30.6200+129.7178/+30.6222+129.7200/ 西 50 鹿児島県屋久島町 4650500 小さな噴石の落下 75 1 +30.4737+130.2000/+30.4600+130.2171/+30.4596+130.2200/+30.4400+130.2388/+30.4212+130.2200/+30.4242+130.2000/+30.4400+130.1837/+30.4600+130.1844/+30.4737+130.2000/ 西 2 鹿児島県屋久島町 4650500 2026-07-10T03:00:00+09:00 2026-07-10T06:00:00+09:00 降灰 70 +30.6596+129.7600/+30.6533+129.7800/+30.6482+129.8000/+30.6400+129.8155/+30.6363+129.8200/+30.6298+129.8400/+30.6261+129.8600/+30.6200+129.8754/+30.6187+129.8800/+30.6123+129.9000/+30.6000+129.9190/+30.5997+129.9200/+30.5954+129.9400/+30.5808+129.9600/+30.5800+129.9608/+30.5758+129.9800/+30.5664+130.0000/+30.5600+130.0077/+30.5573+130.0200/+30.5525+130.0400/+30.5400+130.0559/+30.5392+130.0600/+30.5370+130.0800/+30.5279+130.1000/+30.5200+130.1084/+30.5190+130.1200/+30.5153+130.1400/+30.5000+130.1556/+30.4996+130.1600/+30.4993+130.1800/+30.4850+130.2000/+30.4800+130.2050/+30.4799+130.2200/+30.4600+130.2399/+30.4400+130.2400/+30.4200+130.2200/+30.4200+130.2000/+30.4203+130.1800/+30.4251+130.1600/+30.4400+130.1442/+30.4406+130.1400/+30.4437+130.1200/+30.4564+130.1000/+30.4600+130.0952/+30.4618+130.0800/+30.4684+130.0600/+30.4800+130.0436/+30.4810+130.0400/+30.4870+130.0200/+30.5000+130.0013/+30.5004+130.0000/+30.5029+129.9800/+30.5127+129.9600/+30.5200+129.9504/+30.5238+129.9400/+30.5292+129.9200/+30.5353+129.9000/+30.5400+129.8943/+30.5470+129.8800/+30.5584+129.8600/+30.5600+129.8562/+30.5693+129.8400/+30.5799+129.8200/+30.5800+129.8199/+30.5915+129.8000/+30.6000+129.7880/+30.6127+129.7800/+30.6200+129.7671/+30.6220+129.7600/+30.6400+129.7426/+30.6596+129.7600/ 北西 50 鹿児島県屋久島町 4650500 小さな噴石の落下 75 1 +30.4717+130.2000/+30.4669+130.2200/+30.4600+130.2268/+30.4400+130.2388/+30.4212+130.2200/+30.4242+130.2000/+30.4400+130.1840/+30.4600+130.1870/+30.4717+130.2000/ 北西 2 鹿児島県屋久島町 4650500 2026-07-10T06:00:00+09:00 2026-07-10T09:00:00+09:00 降灰 70 +30.6206+129.7600/+30.6207+129.7800/+30.6207+129.8000/+30.6200+129.8029/+30.6162+129.8200/+30.6122+129.8400/+30.6064+129.8600/+30.6000+129.8712/+30.5968+129.8800/+30.5922+129.9000/+30.5888+129.9200/+30.5829+129.9400/+30.5800+129.9432/+30.5706+129.9600/+30.5600+129.9758/+30.5590+129.9800/+30.5564+130.0000/+30.5516+130.0200/+30.5400+130.0374/+30.5395+130.0400/+30.5370+130.0600/+30.5329+130.0800/+30.5200+130.0963/+30.5195+130.1000/+30.5181+130.1200/+30.5071+130.1400/+30.5000+130.1472/+30.4995+130.1600/+30.4989+130.1800/+30.4800+130.1995/+30.4800+130.2000/+30.4799+130.2200/+30.4600+130.2399/+30.4400+130.2400/+30.4200+130.2200/+30.4200+130.2000/+30.4203+130.1800/+30.4246+130.1600/+30.4400+130.1427/+30.4404+130.1400/+30.4423+130.1200/+30.4478+130.1000/+30.4600+130.0836/+30.4606+130.0800/+30.4639+130.0600/+30.4718+130.0400/+30.4800+130.0285/+30.4821+130.0200/+30.4870+130.0000/+30.4935+129.9800/+30.5000+129.9706/+30.5028+129.9600/+30.5069+129.9400/+30.5175+129.9200/+30.5181+129.9000/+30.5200+129.8963/+30.5279+129.8800/+30.5400+129.8648/+30.5428+129.8600/+30.5501+129.8400/+30.5580+129.8200/+30.5600+129.8160/+30.5739+129.8000/+30.5800+129.7861/+30.5827+129.7800/+30.5914+129.7600/+30.6000+129.7441/+30.6200+129.7586/+30.6206+129.7600/ 北西 50 鹿児島県屋久島町 4650500 小さな噴石の落下 75 1 +30.4711+130.2000/+30.4600+130.2153/+30.4595+130.2200/+30.4400+130.2388/+30.4212+130.2200/+30.4240+130.2000/+30.4400+130.1838/+30.4600+130.1877/+30.4711+130.2000/ 西 2 鹿児島県屋久島町 4650500 2026-07-10T09:00:00+09:00 2026-07-10T12:00:00+09:00 降灰 70 +30.6464+129.7600/+30.6400+129.7774/+30.6382+129.7800/+30.6325+129.8000/+30.6281+129.8200/+30.6252+129.8400/+30.6200+129.8493/+30.6148+129.8600/+30.6100+129.8800/+30.6021+129.9000/+30.6000+129.9031/+30.5958+129.9200/+30.5909+129.9400/+30.5800+129.9523/+30.5763+129.9600/+30.5721+129.9800/+30.5636+130.0000/+30.5600+130.0056/+30.5577+130.0200/+30.5528+130.0400/+30.5400+130.0594/+30.5399+130.0600/+30.5374+130.0800/+30.5324+130.1000/+30.5200+130.1173/+30.5197+130.1200/+30.5169+130.1400/+30.5000+130.1584/+30.4998+130.1600/+30.4994+130.1800/+30.4918+130.2000/+30.4800+130.2118/+30.4799+130.2200/+30.4600+130.2399/+30.4400+130.2400/+30.4200+130.2200/+30.4200+130.2000/+30.4203+130.1800/+30.4228+130.1600/+30.4347+130.1400/+30.4400+130.1331/+30.4417+130.1200/+30.4480+130.1000/+30.4592+130.0800/+30.4600+130.0786/+30.4631+130.0600/+30.4765+130.0400/+30.4800+130.0334/+30.4823+130.0200/+30.4871+130.0000/+30.5000+129.9803/+30.5001+129.9800/+30.5031+129.9600/+30.5107+129.9400/+30.5200+129.9206/+30.5203+129.9200/+30.5237+129.9000/+30.5330+129.8800/+30.5400+129.8682/+30.5438+129.8600/+30.5524+129.8400/+30.5600+129.8240/+30.5631+129.8200/+30.5737+129.8000/+30.5800+129.7848/+30.5824+129.7800/+30.5950+129.7600/+30.6000+129.7524/+30.6197+129.7400/+30.6200+129.7398/+30.6207+129.7400/+30.6400+129.7462/+30.6464+129.7600/ 北西 50 鹿児島県屋久島町 4650500 小さな噴石の落下 75 1 +30.4752+130.2000/+30.4689+130.2200/+30.4600+130.2289/+30.4400+130.2388/+30.4212+130.2200/+30.4237+130.2000/+30.4400+130.1834/+30.4600+130.1840/+30.4752+130.2000/ 北西 2 鹿児島県屋久島町 4650500 2026-07-10T12:00:00+09:00 2026-07-10T15:00:00+09:00 降灰 70 +30.6707+129.7400/+30.6713+129.7600/+30.6670+129.7800/+30.6629+129.8000/+30.6600+129.8107/+30.6575+129.8200/+30.6524+129.8400/+30.6426+129.8600/+30.6400+129.8650/+30.6360+129.8800/+30.6285+129.9000/+30.6200+129.9167/+30.6189+129.9200/+30.6135+129.9400/+30.6025+129.9600/+30.6000+129.9619/+30.5902+129.9800/+30.5800+129.9972/+30.5793+130.0000/+30.5750+130.0200/+30.5631+130.0400/+30.5600+130.0436/+30.5565+130.0600/+30.5448+130.0800/+30.5400+130.0853/+30.5380+130.1000/+30.5327+130.1200/+30.5200+130.1338/+30.5190+130.1400/+30.5104+130.1600/+30.5000+130.1705/+30.4996+130.1800/+30.4964+130.2000/+30.4800+130.2164/+30.4799+130.2200/+30.4600+130.2399/+30.4400+130.2399/+30.4201+130.2200/+30.4200+130.2000/+30.4203+130.1800/+30.4228+130.1600/+30.4349+130.1400/+30.4400+130.1338/+30.4418+130.1200/+30.4487+130.1000/+30.4600+130.0829/+30.4606+130.0800/+30.4657+130.0600/+30.4800+130.0408/+30.4803+130.0400/+30.4862+130.0200/+30.4970+130.0000/+30.5000+129.9952/+30.5045+129.9800/+30.5163+129.9600/+30.5200+129.9533/+30.5242+129.9400/+30.5326+129.9200/+30.5400+129.9062/+30.5427+129.9000/+30.5505+129.8800/+30.5600+129.8640/+30.5633+129.8600/+30.5747+129.8400/+30.5800+129.8276/+30.5836+129.8200/+30.5993+129.8000/+30.6000+129.7989/+30.6137+129.7800/+30.6200+129.7677/+30.6233+129.7600/+30.6371+129.7400/+30.6400+129.7352/+30.6600+129.7240/+30.6707+129.7400/ 北西 50 鹿児島県屋久島町 4650500 小さな噴石の落下 75 1 +30.4757+130.2000/+30.4724+130.2200/+30.4600+130.2324/+30.4400+130.2388/+30.4212+130.2200/+30.4231+130.2000/+30.4400+130.1828/+30.4600+130.1833/+30.4757+130.2000/ 北西 2 鹿児島県屋久島町 4650500 　現在、口永良部島は噴火警戒レベル２（火口周辺規制）です。口永良部島で噴火が発生した場合には、９日２１時から２４時までは火口から西方向、１０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。 　９日２１時から１０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 　０９日２１時から２４時まで　西　　　　　　　５０ｋｍ　　２ｋｍ　　　　　 　１０日００時から０３時まで　西　　　　　　　５０ｋｍ　　２ｋｍ　　　　　 　１０日０３時から０６時まで　北西　　　　　　５０ｋｍ　　２ｋｍ　　　　　 　１０日０６時から０９時まで　北西　　　　　　５０ｋｍ　　２ｋｍ　　　　　 　１０日０９時から１２時まで　北西　　　　　　５０ｋｍ　　２ｋｍ　　　　　 　１０日１２時から１５時まで　北西　　　　　　５０ｋｍ　　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：屋久島町 　 　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。