2026-07-09T23:00:00Z 通常 気象庁本庁 気象庁 2026-07-10T08:00:00+09:00 2026-07-10T09:00:00+09:00 2026-07-11T03:00:00+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、１０日０９時から１２時までは火口から北西方向、１０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 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 2026-07-10T09:00:00+09:00 2026-07-10T12:00:00+09:00 降灰 70 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北西 60 鹿児島県屋久島町 4650500 小さな噴石の落下 75 1 +30.4736+130.2000/+30.4600+130.2184/+30.4598+130.2200/+30.4400+130.2388/+30.4212+130.2200/+30.4235+130.2000/+30.4400+130.1832/+30.4600+130.1848/+30.4736+130.2000/ 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 +30.7049+129.6600/+30.7038+129.6800/+30.7030+129.7000/+30.7000+129.7058/+30.6800+129.7159/+30.6795+129.7200/+30.6788+129.7400/+30.6770+129.7600/+30.6715+129.7800/+30.6674+129.8000/+30.6616+129.8200/+30.6600+129.8247/+30.6542+129.8400/+30.6410+129.8600/+30.6400+129.8612/+30.6341+129.8800/+30.6277+129.9000/+30.6200+129.9146/+30.6178+129.9200/+30.6061+129.9400/+30.6000+129.9465/+30.5954+129.9600/+30.5800+129.9780/+30.5794+129.9800/+30.5757+130.0000/+30.5654+130.0200/+30.5600+130.0267/+30.5577+130.0400/+30.5477+130.0600/+30.5400+130.0684/+30.5384+130.0800/+30.5346+130.1000/+30.5200+130.1163/+30.5196+130.1200/+30.5171+130.1400/+30.5000+130.1575/+30.4998+130.1600/+30.4994+130.1800/+30.4906+130.2000/+30.4800+130.2106/+30.4799+130.2200/+30.4600+130.2399/+30.4400+130.2399/+30.4201+130.2200/+30.4200+130.2000/+30.4203+130.1800/+30.4243+130.1600/+30.4400+130.1430/+30.4403+130.1400/+30.4419+130.1200/+30.4504+130.1000/+30.4600+130.0874/+30.4612+130.0800/+30.4681+130.0600/+30.4800+130.0460/+30.4816+130.0400/+30.4867+130.0200/+30.5000+130.0011/+30.5004+130.0000/+30.5065+129.9800/+30.5200+129.9600/+30.5253+129.9400/+30.5335+129.9200/+30.5400+129.9080/+30.5426+129.9000/+30.5491+129.8800/+30.5600+129.8601/+30.5601+129.8600/+30.5688+129.8400/+30.5758+129.8200/+30.5800+129.8120/+30.5888+129.8000/+30.6000+129.7852/+30.6042+129.7800/+30.6176+129.7600/+30.6200+129.7540/+30.6291+129.7400/+30.6400+129.7201/+30.6402+129.7200/+30.6600+129.7039/+30.6742+129.7000/+30.6800+129.6971/+30.6909+129.6800/+30.6940+129.6600/+30.7000+129.6429/+30.7049+129.6600/ 北西 60 鹿児島県屋久島町 4650500 小さな噴石の落下 75 1 +30.4752+130.2000/+30.4624+130.2200/+30.4600+130.2224/+30.4400+130.2388/+30.4212+130.2200/+30.4232+130.2000/+30.4400+130.1830/+30.4600+130.1833/+30.4752+130.2000/ 北西 2 鹿児島県屋久島町 4650500 2026-07-10T15:00:00+09:00 2026-07-10T18:00:00+09:00 降灰 70 +30.7007+129.6000/+30.7000+129.6025/+30.6991+129.6000/+30.7000+129.5986/+30.7007+129.6000/ +30.6664+129.6800/+30.6692+129.7000/+30.6667+129.7200/+30.6646+129.7400/+30.6600+129.7554/+30.6591+129.7600/+30.6524+129.7800/+30.6428+129.8000/+30.6400+129.8044/+30.6351+129.8200/+30.6316+129.8400/+30.6252+129.8600/+30.6200+129.8724/+30.6177+129.8800/+30.6080+129.9000/+30.6000+129.9090/+30.5973+129.9200/+30.5941+129.9400/+30.5800+129.9558/+30.5778+129.9600/+30.5717+129.9800/+30.5600+129.9989/+30.5598+130.0000/+30.5567+130.0200/+30.5475+130.0400/+30.5400+130.0486/+30.5385+130.0600/+30.5354+130.0800/+30.5200+130.0984/+30.5198+130.1000/+30.5186+130.1200/+30.5099+130.1400/+30.5000+130.1501/+30.4996+130.1600/+30.4990+130.1800/+30.4825+130.2000/+30.4800+130.2025/+30.4799+130.2200/+30.4600+130.2399/+30.4400+130.2399/+30.4201+130.2200/+30.4200+130.2000/+30.4202+130.1800/+30.4212+130.1600/+30.4288+130.1400/+30.4400+130.1274/+30.4406+130.1200/+30.4430+130.1000/+30.4501+130.0800/+30.4600+130.0675/+30.4614+130.0600/+30.4664+130.0400/+30.4800+130.0203/+30.4801+130.0200/+30.4829+130.0000/+30.4909+129.9800/+30.5000+129.9640/+30.5012+129.9600/+30.5071+129.9400/+30.5169+129.9200/+30.5168+129.9000/+30.5200+129.8942/+30.5274+129.8800/+30.5400+129.8636/+30.5416+129.8600/+30.5476+129.8400/+30.5556+129.8200/+30.5600+129.8116/+30.5670+129.8000/+30.5742+129.7800/+30.5800+129.7679/+30.5846+129.7600/+30.5974+129.7400/+30.6000+129.7357/+30.6186+129.7200/+30.6200+129.7179/+30.6282+129.7000/+30.6372+129.6800/+30.6400+129.6741/+30.6600+129.6633/+30.6664+129.6800/ 北西 70 鹿児島県屋久島町 4650500 小さな噴石の落下 75 1 +30.4766+130.2000/+30.4600+130.2166/+30.4588+130.2200/+30.4400+130.2388/+30.4212+130.2200/+30.4223+130.2000/+30.4400+130.1821/+30.4600+130.1806/+30.4766+130.2000/ 西 2 鹿児島県屋久島町 4650500 2026-07-10T18:00:00+09:00 2026-07-10T21:00:00+09:00 降灰 70 +30.7001+129.6000/+30.7000+129.6004/+30.6985+129.6000/+30.7000+129.5986/+30.7001+129.6000/ +30.6713+129.6200/+30.6757+129.6400/+30.6755+129.6600/+30.6745+129.6800/+30.6740+129.7000/+30.6703+129.7200/+30.6663+129.7400/+30.6600+129.7552/+30.6586+129.7600/+30.6502+129.7800/+30.6400+129.7951/+30.6380+129.8000/+30.6330+129.8200/+30.6291+129.8400/+30.6200+129.8593/+30.6197+129.8600/+30.6140+129.8800/+30.6022+129.9000/+30.6000+129.9021/+30.5954+129.9200/+30.5920+129.9400/+30.5800+129.9525/+30.5759+129.9600/+30.5673+129.9800/+30.5600+129.9898/+30.5585+130.0000/+30.5548+130.0200/+30.5400+130.0388/+30.5397+130.0400/+30.5376+130.0600/+30.5325+130.0800/+30.5200+130.0937/+30.5194+130.1000/+30.5178+130.1200/+30.5001+130.1400/+30.5000+130.1401/+30.4996+130.1600/+30.4988+130.1800/+30.4802+130.2000/+30.4800+130.2002/+30.4798+130.2200/+30.4600+130.2397/+30.4400+130.2399/+30.4201+130.2200/+30.4200+130.2000/+30.4201+130.1800/+30.4205+130.1600/+30.4222+130.1400/+30.4306+130.1200/+30.4400+130.1080/+30.4406+130.1000/+30.4423+130.0800/+30.4460+130.0600/+30.4566+130.0400/+30.4600+130.0332/+30.4616+130.0200/+30.4681+130.0000/+30.4800+129.9815/+30.4805+129.9800/+30.4840+129.9600/+30.4879+129.9400/+30.4961+129.9200/+30.4995+129.9000/+30.5000+129.8991/+30.5089+129.8800/+30.5199+129.8600/+30.5200+129.8597/+30.5280+129.8400/+30.5400+129.8210/+30.5404+129.8200/+30.5449+129.8000/+30.5562+129.7800/+30.5600+129.7753/+30.5688+129.7600/+30.5783+129.7400/+30.5800+129.7369/+30.5895+129.7200/+30.6000+129.7018/+30.6021+129.7000/+30.6152+129.6800/+30.6200+129.6718/+30.6265+129.6600/+30.6357+129.6400/+30.6400+129.6302/+30.6526+129.6200/+30.6600+129.6114/+30.6713+129.6200/ 北西 70 鹿児島県屋久島町 4650500 小さな噴石の落下 75 1 +30.4772+130.2000/+30.4769+130.2200/+30.4600+130.2369/+30.4400+130.2388/+30.4212+130.2200/+30.4221+130.2000/+30.4400+130.1815/+30.4600+130.1805/+30.4772+130.2000/ 北西 2 鹿児島県屋久島町 4650500 2026-07-10T21:00:00+09:00 2026-07-11T00:00:00+09:00 降灰 70 +30.6644+129.6000/+30.6656+129.6200/+30.6660+129.6400/+30.6643+129.6600/+30.6609+129.6800/+30.6600+129.6855/+30.6567+129.7000/+30.6452+129.7200/+30.6400+129.7317/+30.6379+129.7400/+30.6322+129.7600/+30.6274+129.7800/+30.6235+129.8000/+30.6205+129.8200/+30.6200+129.8228/+30.6169+129.8400/+30.6000+129.8600/+30.5949+129.8800/+30.5901+129.9000/+30.5847+129.9200/+30.5800+129.9307/+30.5763+129.9400/+30.5600+129.9577/+30.5595+129.9600/+30.5570+129.9800/+30.5529+130.0000/+30.5400+130.0189/+30.5398+130.0200/+30.5374+130.0400/+30.5328+130.0600/+30.5200+130.0774/+30.5197+130.0800/+30.5184+130.1000/+30.5146+130.1200/+30.5000+130.1357/+30.4997+130.1400/+30.4993+130.1600/+30.4979+130.1800/+30.4801+130.2000/+30.4800+130.2001/+30.4797+130.2200/+30.4600+130.2397/+30.4400+130.2399/+30.4201+130.2200/+30.4200+130.2000/+30.4201+130.1800/+30.4202+130.1600/+30.4207+130.1400/+30.4219+130.1200/+30.4254+130.1000/+30.4321+130.0800/+30.4400+130.0689/+30.4413+130.0600/+30.4438+130.0400/+30.4464+130.0200/+30.4522+130.0000/+30.4600+129.9863/+30.4618+129.9800/+30.4645+129.9600/+30.4702+129.9400/+30.4792+129.9200/+30.4800+129.9174/+30.4835+129.9000/+30.4911+129.8800/+30.4992+129.8600/+30.5000+129.8580/+30.5068+129.8400/+30.5165+129.8200/+30.5200+129.8142/+30.5266+129.8000/+30.5326+129.7800/+30.5400+129.7633/+30.5418+129.7600/+30.5511+129.7400/+30.5600+129.7265/+30.5646+129.7200/+30.5741+129.7000/+30.5800+129.6891/+30.5858+129.6800/+30.6000+129.6626/+30.6056+129.6600/+30.6200+129.6465/+30.6243+129.6400/+30.6345+129.6200/+30.6400+129.6068/+30.6503+129.6000/+30.6600+129.5932/+30.6644+129.6000/ 西 60 鹿児島県屋久島町 4650500 小さな噴石の落下 75 1 +30.4778+130.2000/+30.4778+130.2200/+30.4600+130.2378/+30.4400+130.2388/+30.4212+130.2200/+30.4219+130.2000/+30.4400+130.1813/+30.4600+130.1802/+30.4778+130.2000/ 北西 2 鹿児島県屋久島町 4650500 2026-07-11T00:00:00+09:00 2026-07-11T03:00:00+09:00 降灰 70 +30.7033+129.5800/+30.7057+129.6000/+30.7000+129.6155/+30.6826+129.6000/+30.6940+129.5800/+30.7000+129.5612/+30.7033+129.5800/ +30.6720+129.6400/+30.6739+129.6600/+30.6739+129.6800/+30.6740+129.7000/+30.6708+129.7200/+30.6683+129.7400/+30.6613+129.7600/+30.6600+129.7630/+30.6551+129.7800/+30.6476+129.8000/+30.6400+129.8124/+30.6373+129.8200/+30.6320+129.8400/+30.6250+129.8600/+30.6200+129.8723/+30.6179+129.8800/+30.6101+129.9000/+30.6000+129.9131/+30.5980+129.9200/+30.5935+129.9400/+30.5800+129.9540/+30.5771+129.9600/+30.5733+129.9800/+30.5618+130.0000/+30.5600+130.0021/+30.5568+130.0200/+30.5499+130.0400/+30.5400+130.0519/+30.5387+130.0600/+30.5354+130.0800/+30.5200+130.0985/+30.5198+130.1000/+30.5185+130.1200/+30.5120+130.1400/+30.5000+130.1526/+30.4997+130.1600/+30.4992+130.1800/+30.4946+130.2000/+30.4800+130.2146/+30.4798+130.2200/+30.4600+130.2398/+30.4400+130.2399/+30.4201+130.2200/+30.4200+130.2000/+30.4201+130.1800/+30.4204+130.1600/+30.4213+130.1400/+30.4241+130.1200/+30.4374+130.1000/+30.4400+130.0961/+30.4412+130.0800/+30.4439+130.0600/+30.4498+130.0400/+30.4593+130.0200/+30.4600+130.0187/+30.4633+130.0000/+30.4696+129.9800/+30.4781+129.9600/+30.4800+129.9569/+30.4859+129.9400/+30.4914+129.9200/+30.4954+129.9000/+30.5000+129.8903/+30.5052+129.8800/+30.5183+129.8600/+30.5200+129.8561/+30.5262+129.8400/+30.5354+129.8200/+30.5400+129.8004/+30.5401+129.8000/+30.5499+129.7800/+30.5600+129.7667/+30.5640+129.7600/+30.5719+129.7400/+30.5800+129.7251/+30.5833+129.7200/+30.5969+129.7000/+30.6000+129.6950/+30.6146+129.6800/+30.6200+129.6735/+30.6298+129.6600/+30.6400+129.6422/+30.6441+129.6400/+30.6600+129.6263/+30.6720+129.6400/ 北西 70 鹿児島県屋久島町 4650500 小さな噴石の落下 75 1 +30.4779+130.2000/+30.4778+130.2200/+30.4600+130.2378/+30.4400+130.2388/+30.4212+130.2200/+30.4216+130.2000/+30.4400+130.1811/+30.4600+130.1801/+30.4779+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、１０日０９時から１２時までは火口から北西方向、１０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。 　１０日９時から１１日３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 　１０日０９時から１２時まで　北西　　　　　　６０ｋｍ　　２ｋｍ　　　　　 　１０日１２時から１５時まで　北西　　　　　　６０ｋｍ　　２ｋｍ　　　　　 　１０日１５時から１８時まで　北西　　　　　　７０ｋｍ　　２ｋｍ　　　　　 　１０日１８時から２１時まで　北西　　　　　　７０ｋｍ　　２ｋｍ　　　　　 　１０日２１時から２４時まで　西　　　　　　　６０ｋｍ　　２ｋｍ　　　　　 　１１日００時から０３時まで　北西　　　　　　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：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。