2026-07-10T08:00:00Z 通常 気象庁本庁 気象庁 2026-07-10T17:00:00+09:00 2026-07-10T18:00:00+09:00 2026-07-11T12:00:00+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２１時から２４時までは火口から西方向、１１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 2026-07-10T18:00:00+09:00 2026-07-10T21:00:00+09:00 降灰 70 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西 60 鹿児島県屋久島町 4650500 小さな噴石の落下 75 1 +30.4600+130.1800/+30.4768+130.2000/+30.4600+130.2168/+30.4588+130.2200/+30.4400+130.2388/+30.4212+130.2200/+30.4221+130.2000/+30.4400+130.1810/+30.4599+130.1800/+30.4600+130.1799/+30.4600+130.1800/ 北西 4 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 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西 60 鹿児島県屋久島町 4650500 小さな噴石の落下 75 1 +30.4619+130.1800/+30.4776+130.2000/+30.4600+130.2176/+30.4588+130.2200/+30.4400+130.2388/+30.4212+130.2200/+30.4217+130.2000/+30.4400+130.1807/+30.4571+130.1800/+30.4600+130.1781/+30.4619+130.1800/ 北西 4 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 +30.7005+129.5600/+30.7007+129.5800/+30.7008+129.6000/+30.7000+129.6129/+30.6963+129.6000/+30.6987+129.5800/+30.6995+129.5600/+30.7000+129.5587/+30.7005+129.5600/ +30.6937+129.6200/+30.6952+129.6400/+30.6892+129.6600/+30.6840+129.6800/+30.6817+129.7000/+30.6800+129.7077/+30.6776+129.7200/+30.6740+129.7400/+30.6675+129.7600/+30.6600+129.7775/+30.6593+129.7800/+30.6532+129.8000/+30.6426+129.8200/+30.6400+129.8234/+30.6350+129.8400/+30.6271+129.8600/+30.6201+129.8800/+30.6200+129.8801/+30.6143+129.9000/+30.6000+129.9179/+30.5994+129.9200/+30.5956+129.9400/+30.5800+129.9580/+30.5791+129.9600/+30.5746+129.9800/+30.5629+130.0000/+30.5600+130.0035/+30.5574+130.0200/+30.5512+130.0400/+30.5400+130.0528/+30.5388+130.0600/+30.5360+130.0800/+30.5200+130.0993/+30.5199+130.1000/+30.5186+130.1200/+30.5125+130.1400/+30.5000+130.1530/+30.4997+130.1600/+30.4992+130.1800/+30.4901+130.2000/+30.4800+130.2101/+30.4797+130.2200/+30.4600+130.2397/+30.4400+130.2398/+30.4202+130.2200/+30.4201+130.2000/+30.4201+130.1800/+30.4206+130.1600/+30.4232+130.1400/+30.4400+130.1211/+30.4401+130.1200/+30.4411+130.1000/+30.4430+130.0800/+30.4487+130.0600/+30.4600+130.0443/+30.4608+130.0400/+30.4637+130.0200/+30.4686+130.0000/+30.4800+129.9849/+30.4818+129.9800/+30.4852+129.9600/+30.4904+129.9400/+30.5000+129.9252/+30.5019+129.9200/+30.5009+129.9000/+30.5090+129.8800/+30.5200+129.8620/+30.5212+129.8600/+30.5292+129.8400/+30.5400+129.8201/+30.5400+129.8200/+30.5420+129.8000/+30.5526+129.7800/+30.5600+129.7707/+30.5669+129.7600/+30.5769+129.7400/+30.5800+129.7347/+30.5889+129.7200/+30.6000+129.7018/+30.6018+129.7000/+30.6125+129.6800/+30.6200+129.6662/+30.6234+129.6600/+30.6341+129.6400/+30.6400+129.6299/+30.6543+129.6200/+30.6600+129.6154/+30.6800+129.6157/+30.6937+129.6200/ 北西 70 鹿児島県屋久島町 4650500 小さな噴石の落下 75 1 +30.4609+130.1800/+30.4778+130.2000/+30.4778+130.2200/+30.4600+130.2377/+30.4400+130.2388/+30.4212+130.2200/+30.4216+130.2000/+30.4400+130.1812/+30.4595+130.1800/+30.4600+130.1795/+30.4609+130.1800/ 北西 4 鹿児島県屋久島町 4650500 2026-07-11T03:00:00+09:00 2026-07-11T06:00:00+09:00 降灰 70 +30.7036+129.5600/+30.7071+129.5800/+30.7090+129.6000/+30.7092+129.6200/+30.7093+129.6400/+30.7051+129.6600/+30.7000+129.6702/+30.6920+129.6800/+30.6849+129.7000/+30.6800+129.7164/+30.6791+129.7200/+30.6751+129.7400/+30.6701+129.7600/+30.6620+129.7800/+30.6600+129.7888/+30.6574+129.8000/+30.6489+129.8200/+30.6400+129.8330/+30.6377+129.8400/+30.6318+129.8600/+30.6239+129.8800/+30.6200+129.8884/+30.6160+129.9000/+30.6031+129.9200/+30.6000+129.9240/+30.5965+129.9400/+30.5800+129.9599/+30.5800+129.9600/+30.5758+129.9800/+30.5663+130.0000/+30.5600+130.0073/+30.5575+130.0200/+30.5533+130.0400/+30.5400+130.0564/+30.5393+130.0600/+30.5367+130.0800/+30.5234+130.1000/+30.5200+130.1036/+30.5188+130.1200/+30.5150+130.1400/+30.5000+130.1561/+30.4998+130.1600/+30.4994+130.1800/+30.4951+130.2000/+30.4800+130.2151/+30.4797+130.2200/+30.4600+130.2397/+30.4400+130.2398/+30.4202+130.2200/+30.4201+130.2000/+30.4201+130.1800/+30.4206+130.1600/+30.4226+130.1400/+30.4351+130.1200/+30.4400+130.1143/+30.4409+130.1000/+30.4424+130.0800/+30.4458+130.0600/+30.4558+130.0400/+30.4600+130.0333/+30.4621+130.0200/+30.4666+130.0000/+30.4738+129.9800/+30.4800+129.9712/+30.4836+129.9600/+30.4912+129.9400/+30.4959+129.9200/+30.4966+129.9000/+30.5000+129.8916/+30.5046+129.8800/+30.5154+129.8600/+30.5200+129.8515/+30.5258+129.8400/+30.5372+129.8200/+30.5400+129.8091/+30.5421+129.8000/+30.5512+129.7800/+30.5600+129.7681/+30.5657+129.7600/+30.5742+129.7400/+30.5800+129.7286/+30.5851+129.7200/+30.5991+129.7000/+30.6000+129.6987/+30.6149+129.6800/+30.6200+129.6729/+30.6286+129.6600/+30.6398+129.6400/+30.6400+129.6395/+30.6585+129.6200/+30.6600+129.6182/+30.6800+129.6006/+30.6804+129.6000/+30.6905+129.5800/+30.6971+129.5600/+30.7000+129.5539/+30.7036+129.5600/ 北西 70 鹿児島県屋久島町 4650500 小さな噴石の落下 75 1 +30.4825+130.1800/+30.4800+130.1825/+30.4782+130.2000/+30.4782+130.2200/+30.4600+130.2382/+30.4400+130.2388/+30.4212+130.2200/+30.4219+130.2000/+30.4400+130.1814/+30.4598+130.1800/+30.4600+130.1798/+30.4800+130.1765/+30.4825+130.1800/ 北西 5 鹿児島県屋久島町 4650500 2026-07-11T06:00:00+09:00 2026-07-11T09:00:00+09:00 降灰 70 +30.7411+129.5800/+30.7476+129.6000/+30.7400+129.6116/+30.7328+129.6200/+30.7281+129.6400/+30.7244+129.6600/+30.7202+129.6800/+30.7200+129.6809/+30.7170+129.7000/+30.7104+129.7200/+30.7024+129.7400/+30.7000+129.7444/+30.6940+129.7600/+30.6887+129.7800/+30.6800+129.7959/+30.6784+129.8000/+30.6719+129.8200/+30.6651+129.8400/+30.6600+129.8558/+30.6583+129.8600/+30.6487+129.8800/+30.6400+129.8913/+30.6370+129.9000/+30.6290+129.9200/+30.6206+129.9400/+30.6200+129.9411/+30.6113+129.9600/+30.6000+129.9688/+30.5944+129.9800/+30.5805+130.0000/+30.5800+130.0006/+30.5760+130.0200/+30.5628+130.0400/+30.5600+130.0433/+30.5575+130.0600/+30.5450+130.0800/+30.5400+130.0853/+30.5385+130.1000/+30.5327+130.1200/+30.5200+130.1334/+30.5193+130.1400/+30.5154+130.1600/+30.5000+130.1759/+30.4998+130.1800/+30.4984+130.2000/+30.4800+130.2184/+30.4798+130.2200/+30.4600+130.2398/+30.4400+130.2398/+30.4202+130.2200/+30.4201+130.2000/+30.4204+130.1800/+30.4243+130.1600/+30.4400+130.1434/+30.4403+130.1400/+30.4415+130.1200/+30.4460+130.1000/+30.4600+130.0818/+30.4603+130.0800/+30.4630+130.0600/+30.4714+130.0400/+30.4800+130.0282/+30.4819+130.0200/+30.4866+130.0000/+30.4970+129.9800/+30.5000+129.9752/+30.5040+129.9600/+30.5139+129.9400/+30.5200+129.9274/+30.5221+129.9200/+30.5233+129.9000/+30.5354+129.8800/+30.5400+129.8744/+30.5463+129.8600/+30.5543+129.8400/+30.5600+129.8292/+30.5648+129.8200/+30.5760+129.8000/+30.5800+129.7897/+30.5849+129.7800/+30.6000+129.7604/+30.6003+129.7600/+30.6103+129.7400/+30.6200+129.7215/+30.6210+129.7200/+30.6338+129.7000/+30.6400+129.6893/+30.6491+129.6800/+30.6600+129.6679/+30.6666+129.6600/+30.6767+129.6400/+30.6800+129.6329/+30.6861+129.6200/+30.6961+129.6000/+30.7000+129.5938/+30.7200+129.5902/+30.7384+129.5800/+30.7400+129.5780/+30.7411+129.5800/ 北西 70 鹿児島県屋久島町 4650500 小さな噴石の落下 75 1 +30.4800+130.1800/+30.4816+130.2000/+30.4800+130.2016/+30.4780+130.2200/+30.4600+130.2380/+30.4400+130.2388/+30.4212+130.2200/+30.4216+130.2000/+30.4400+130.1813/+30.4581+130.1800/+30.4600+130.1779/+30.4800+130.1800/ 北西 5 鹿児島県屋久島町 4650500 2026-07-11T09:00:00+09:00 2026-07-11T12:00:00+09:00 降灰 70 +30.8222+129.6000/+30.8200+129.6048/+30.8140+129.6200/+30.8080+129.6400/+30.8000+129.6574/+30.7980+129.6600/+30.7853+129.6800/+30.7806+129.7000/+30.7800+129.7018/+30.7733+129.7200/+30.7650+129.7400/+30.7600+129.7492/+30.7536+129.7600/+30.7404+129.7800/+30.7400+129.7806/+30.7330+129.8000/+30.7200+129.8156/+30.7171+129.8200/+30.7086+129.8400/+30.7021+129.8600/+30.7000+129.8648/+30.6904+129.8800/+30.6800+129.8917/+30.6764+129.9000/+30.6600+129.9160/+30.6581+129.9200/+30.6534+129.9400/+30.6457+129.9600/+30.6400+129.9675/+30.6346+129.9800/+30.6200+129.9931/+30.6144+130.0000/+30.6000+130.0168/+30.5988+130.0200/+30.5930+130.0400/+30.5800+130.0542/+30.5785+130.0600/+30.5703+130.0800/+30.5600+130.0907/+30.5580+130.1000/+30.5400+130.1198/+30.5400+130.1200/+30.5380+130.1400/+30.5200+130.1584/+30.5197+130.1600/+30.5146+130.1800/+30.5000+130.1946/+30.4995+130.2000/+30.4800+130.2195/+30.4797+130.2200/+30.4600+130.2397/+30.4400+130.2397/+30.4203+130.2200/+30.4201+130.2000/+30.4255+130.1800/+30.4400+130.1655/+30.4405+130.1600/+30.4517+130.1400/+30.4600+130.1317/+30.4613+130.1200/+30.4786+130.1000/+30.4800+130.0985/+30.4823+130.0800/+30.4949+130.0600/+30.5000+130.0545/+30.5029+130.0400/+30.5102+130.0200/+30.5200+130.0084/+30.5233+130.0000/+30.5319+129.9800/+30.5400+129.9671/+30.5418+129.9600/+30.5516+129.9400/+30.5537+129.9200/+30.5600+129.9072/+30.5633+129.9000/+30.5751+129.8800/+30.5800+129.8731/+30.5887+129.8600/+30.5974+129.8400/+30.6000+129.8354/+30.6066+129.8200/+30.6198+129.8000/+30.6200+129.7996/+30.6318+129.7800/+30.6400+129.7717/+30.6487+129.7600/+30.6600+129.7407/+30.6606+129.7400/+30.6721+129.7200/+30.6800+129.7084/+30.6864+129.7000/+30.7000+129.6804/+30.7005+129.6800/+30.7195+129.6600/+30.7200+129.6593/+30.7327+129.6400/+30.7400+129.6286/+30.7502+129.6200/+30.7600+129.6096/+30.7689+129.6000/+30.7800+129.5887/+30.7881+129.5800/+30.8000+129.5663/+30.8166+129.5800/+30.8200+129.5890/+30.8222+129.6000/ 北西 70 鹿児島県屋久島町 4650500 小さな噴石の落下 75 1 +30.4807+130.1800/+30.4827+130.2000/+30.4800+130.2027/+30.4788+130.2200/+30.4600+130.2388/+30.4400+130.2388/+30.4212+130.2200/+30.4220+130.2000/+30.4400+130.1820/+30.4560+130.1800/+30.4600+130.1756/+30.4800+130.1790/+30.4807+130.1800/ 北西 5 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２１時から２４時までは火口から西方向、１１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。 　１０日１８時から１１日１２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１８時から２１時まで　西　　　　　　　６０ｋｍ　　４ｋｍ　　　　　 　１０日２１時から２４時まで　西　　　　　　　６０ｋｍ　　４ｋｍ　　　　　 　１１日００時から０３時まで　北西　　　　　　７０ｋｍ　　４ｋｍ　　　　　 　１１日０３時から０６時まで　北西　　　　　　７０ｋｍ　　５ｋｍ　　　　　 　１１日０６時から０９時まで　北西　　　　　　７０ｋｍ　　５ｋｍ　　　　　 　１１日０９時から１２時まで　北西　　　　　　７０ｋｍ　　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：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。