2026-07-09T02:00:00Z 通常 気象庁本庁 気象庁 2026-07-09T11:00:00+09:00 2026-07-09T12:00:00+09:00 2026-07-10T06:00:00+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 2026-07-09T12:00:00+09:00 2026-07-09T15:00:00+09:00 降灰 70 +30.6008+129.9200/+30.6000+129.9244/+30.5954+129.9400/+30.5940+129.9600/+30.5914+129.9800/+30.5838+130.0000/+30.5800+130.0071/+30.5753+130.0200/+30.5696+130.0400/+30.5628+130.0600/+30.5600+130.0638/+30.5542+130.0800/+30.5452+130.1000/+30.5400+130.1094/+30.5380+130.1200/+30.5326+130.1400/+30.5200+130.1564/+30.5192+130.1600/+30.5148+130.1800/+30.5000+130.1953/+30.4991+130.2000/+30.4907+130.2200/+30.4800+130.2310/+30.4653+130.2400/+30.4600+130.2450/+30.4400+130.2557/+30.4200+130.2489/+30.4000+130.2427/+30.3964+130.2400/+30.3819+130.2200/+30.3846+130.2000/+30.4000+130.1802/+30.4001+130.1800/+30.4096+130.1600/+30.4200+130.1492/+30.4276+130.1400/+30.4400+130.1247/+30.4426+130.1200/+30.4502+130.1000/+30.4600+130.0834/+30.4613+130.0800/+30.4711+130.0600/+30.4800+130.0472/+30.4859+130.0400/+30.5000+130.0222/+30.5016+130.0200/+30.5112+130.0000/+30.5169+129.9800/+30.5200+129.9760/+30.5339+129.9600/+30.5400+129.9522/+30.5550+129.9400/+30.5600+129.9330/+30.5800+129.9208/+30.5865+129.9200/+30.6000+129.9159/+30.6008+129.9200/ 北西 30 鹿児島県屋久島町 4650500 小さな噴石の落下 75 1 +30.4703+130.2000/+30.4747+130.2200/+30.4600+130.2347/+30.4400+130.2389/+30.4211+130.2200/+30.4319+130.2000/+30.4400+130.1918/+30.4600+130.1896/+30.4703+130.2000/ 北西 2 鹿児島県屋久島町 4650500 2026-07-09T15:00:00+09:00 2026-07-09T18:00:00+09:00 降灰 70 +30.5987+129.8600/+30.5924+129.8800/+30.5884+129.9000/+30.5832+129.9200/+30.5800+129.9332/+30.5788+129.9400/+30.5707+129.9600/+30.5631+129.9800/+30.5600+129.9862/+30.5577+130.0000/+30.5542+130.0200/+30.5476+130.0400/+30.5400+130.0503/+30.5373+130.0600/+30.5330+130.0800/+30.5274+130.1000/+30.5200+130.1105/+30.5188+130.1200/+30.5149+130.1400/+30.5000+130.1566/+30.4993+130.1600/+30.4988+130.1800/+30.4929+130.2000/+30.4800+130.2129/+30.4799+130.2200/+30.4600+130.2399/+30.4400+130.2400/+30.4200+130.2200/+30.4200+130.2176/+30.4028+130.2000/+30.4013+130.1800/+30.4014+130.1600/+30.4035+130.1400/+30.4084+130.1200/+30.4200+130.1049/+30.4237+130.1000/+30.4392+130.0800/+30.4400+130.0787/+30.4494+130.0600/+30.4589+130.0400/+30.4600+130.0383/+30.4688+130.0200/+30.4788+130.0000/+30.4800+129.9983/+30.5000+129.9814/+30.5010+129.9800/+30.5057+129.9600/+30.5138+129.9400/+30.5200+129.9252/+30.5233+129.9200/+30.5326+129.9000/+30.5400+129.8883/+30.5472+129.8800/+30.5600+129.8646/+30.5687+129.8600/+30.5800+129.8503/+30.5987+129.8600/ 西 40 鹿児島県屋久島町 4650500 小さな噴石の落下 75 1 +30.4668+130.2000/+30.4631+130.2200/+30.4600+130.2231/+30.4400+130.2388/+30.4212+130.2200/+30.4274+130.2000/+30.4400+130.1869/+30.4600+130.1927/+30.4668+130.2000/ 北西 2 鹿児島県屋久島町 4650500 2026-07-09T18:00:00+09:00 2026-07-09T21:00:00+09:00 降灰 70 +30.5808+129.8200/+30.5821+129.8400/+30.5800+129.8444/+30.5727+129.8600/+30.5672+129.8800/+30.5624+129.9000/+30.5600+129.9107/+30.5588+129.9200/+30.5498+129.9400/+30.5424+129.9600/+30.5400+129.9649/+30.5378+129.9800/+30.5357+130.0000/+30.5307+130.0200/+30.5200+130.0363/+30.5194+130.0400/+30.5175+130.0600/+30.5149+130.0800/+30.5013+130.1000/+30.5000+130.1016/+30.4988+130.1200/+30.4977+130.1400/+30.4940+130.1600/+30.4800+130.1752/+30.4799+130.1800/+30.4799+130.2000/+30.4799+130.2200/+30.4600+130.2399/+30.4400+130.2400/+30.4200+130.2200/+30.4200+130.2000/+30.4201+130.1800/+30.4201+130.1600/+30.4204+130.1400/+30.4210+130.1200/+30.4226+130.1000/+30.4258+130.0800/+30.4342+130.0600/+30.4400+130.0468/+30.4410+130.0400/+30.4484+130.0200/+30.4563+130.0000/+30.4600+129.9860/+30.4606+129.9800/+30.4676+129.9600/+30.4737+129.9400/+30.4800+129.9274/+30.4821+129.9200/+30.4873+129.9000/+30.4957+129.8800/+30.5000+129.8708/+30.5063+129.8600/+30.5152+129.8400/+30.5200+129.8315/+30.5260+129.8200/+30.5400+129.8038/+30.5449+129.8000/+30.5560+129.7800/+30.5600+129.7738/+30.5703+129.7800/+30.5792+129.8000/+30.5800+129.8080/+30.5808+129.8200/ 西 40 鹿児島県屋久島町 4650500 小さな噴石の落下 75 1 +30.4652+130.2000/+30.4600+130.2198/+30.4600+130.2200/+30.4400+130.2388/+30.4212+130.2200/+30.4265+130.2000/+30.4400+130.1855/+30.4600+130.1939/+30.4652+130.2000/ 西 2 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 +30.6123+129.7400/+30.6144+129.7600/+30.6110+129.7800/+30.6082+129.8000/+30.6022+129.8200/+30.6000+129.8263/+30.5974+129.8400/+30.5939+129.8600/+30.5888+129.8800/+30.5831+129.9000/+30.5800+129.9087/+30.5770+129.9200/+30.5717+129.9400/+30.5600+129.9534/+30.5580+129.9600/+30.5539+129.9800/+30.5477+130.0000/+30.5400+130.0124/+30.5389+130.0200/+30.5363+130.0400/+30.5309+130.0600/+30.5200+130.0752/+30.5195+130.0800/+30.5179+130.1000/+30.5122+130.1200/+30.5000+130.1334/+30.4995+130.1400/+30.4989+130.1600/+30.4951+130.1800/+30.4800+130.1955/+30.4800+130.2000/+30.4799+130.2200/+30.4600+130.2399/+30.4400+130.2400/+30.4200+130.2200/+30.4200+130.2000/+30.4201+130.1800/+30.4205+130.1600/+30.4217+130.1400/+30.4255+130.1200/+30.4400+130.1012/+30.4403+130.1000/+30.4425+130.0800/+30.4486+130.0600/+30.4600+130.0405/+30.4601+130.0400/+30.4632+130.0200/+30.4702+130.0000/+30.4800+129.9833/+30.4809+129.9800/+30.4849+129.9600/+30.4914+129.9400/+30.5000+129.9245/+30.5015+129.9200/+30.5006+129.9000/+30.5086+129.8800/+30.5189+129.8600/+30.5200+129.8581/+30.5288+129.8400/+30.5400+129.8211/+30.5407+129.8200/+30.5498+129.8000/+30.5600+129.7800/+30.5781+129.7600/+30.5800+129.7570/+30.5890+129.7400/+30.6000+129.7236/+30.6123+129.7400/ 西 50 鹿児島県屋久島町 4650500 小さな噴石の落下 75 1 +30.4695+130.2000/+30.4600+130.2147/+30.4596+130.2200/+30.4400+130.2388/+30.4212+130.2200/+30.4253+130.2000/+30.4400+130.1846/+30.4600+130.1893/+30.4695+130.2000/ 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 +30.6608+129.7400/+30.6625+129.7600/+30.6600+129.7706/+30.6583+129.7800/+30.6557+129.8000/+30.6503+129.8200/+30.6439+129.8400/+30.6400+129.8456/+30.6345+129.8600/+30.6274+129.8800/+30.6200+129.8987/+30.6197+129.9000/+30.6137+129.9200/+30.6000+129.9381/+30.5993+129.9400/+30.5898+129.9600/+30.5800+129.9703/+30.5771+129.9800/+30.5729+130.0000/+30.5600+130.0193/+30.5599+130.0200/+30.5560+130.0400/+30.5450+130.0600/+30.5400+130.0656/+30.5380+130.0800/+30.5344+130.1000/+30.5200+130.1164/+30.5196+130.1200/+30.5174+130.1400/+30.5000+130.1581/+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+130.2400/+30.4200+130.2200/+30.4200+130.2000/+30.4203+130.1800/+30.4236+130.1600/+30.4400+130.1416/+30.4403+130.1400/+30.4435+130.1200/+30.4555+130.1000/+30.4600+130.0935/+30.4616+130.0800/+30.4690+130.0600/+30.4800+130.0442/+30.4813+130.0400/+30.4874+130.0200/+30.4977+130.0000/+30.5000+129.9967/+30.5065+129.9800/+30.5160+129.9600/+30.5200+129.9524/+30.5232+129.9400/+30.5316+129.9200/+30.5400+129.9027/+30.5412+129.9000/+30.5495+129.8800/+30.5594+129.8600/+30.5600+129.8586/+30.5688+129.8400/+30.5774+129.8200/+30.5800+129.8146/+30.5888+129.8000/+30.6000+129.7856/+30.6082+129.7800/+30.6200+129.7647/+30.6221+129.7600/+30.6396+129.7400/+30.6400+129.7393/+30.6600+129.7375/+30.6608+129.7400/ 北西 50 鹿児島県屋久島町 4650500 小さな噴石の落下 75 1 +30.4747+130.2000/+30.4742+130.2200/+30.4600+130.2342/+30.4400+130.2388/+30.4212+130.2200/+30.4238+130.2000/+30.4400+130.1836/+30.4600+130.1843/+30.4747+130.2000/ 北西 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 +30.6698+129.7400/+30.6714+129.7600/+30.6654+129.7800/+30.6607+129.8000/+30.6600+129.8023/+30.6541+129.8200/+30.6456+129.8400/+30.6400+129.8479/+30.6355+129.8600/+30.6281+129.8800/+30.6200+129.8992/+30.6198+129.9000/+30.6135+129.9200/+30.6000+129.9392/+30.5998+129.9400/+30.5942+129.9600/+30.5800+129.9764/+30.5788+129.9800/+30.5747+130.0000/+30.5600+130.0200/+30.5569+130.0400/+30.5462+130.0600/+30.5400+130.0667/+30.5382+130.0800/+30.5346+130.1000/+30.5200+130.1162/+30.5195+130.1200/+30.5174+130.1400/+30.5000+130.1578/+30.4997+130.1600/+30.4994+130.1800/+30.4859+130.2000/+30.4800+130.2059/+30.4799+130.2200/+30.4600+130.2399/+30.4400+130.2400/+30.4200+130.2200/+30.4200+130.2000/+30.4203+130.1800/+30.4242+130.1600/+30.4400+130.1425/+30.4404+130.1400/+30.4436+130.1200/+30.4563+130.1000/+30.4600+130.0954/+30.4624+130.0800/+30.4696+130.0600/+30.4800+130.0460/+30.4819+130.0400/+30.4899+130.0200/+30.5000+130.0074/+30.5020+130.0000/+30.5080+129.9800/+30.5200+129.9616/+30.5207+129.9600/+30.5273+129.9400/+30.5366+129.9200/+30.5400+129.9127/+30.5438+129.9000/+30.5511+129.8800/+30.5600+129.8657/+30.5647+129.8600/+30.5754+129.8400/+30.5800+129.8267/+30.5825+129.8200/+30.5948+129.8000/+30.6000+129.7929/+30.6100+129.7800/+30.6185+129.7600/+30.6200+129.7561/+30.6317+129.7400/+30.6400+129.7276/+30.6600+129.7217/+30.6698+129.7400/ 北西 50 鹿児島県屋久島町 4650500 小さな噴石の落下 75 1 +30.4738+130.2000/+30.4668+130.2200/+30.4600+130.2268/+30.4400+130.2388/+30.4212+130.2200/+30.4231+130.2000/+30.4400+130.1829/+30.4600+130.1848/+30.4738+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に降灰が予想されます。 　９日１２時から１０日６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１２時から１５時まで　北西　　　　　　３０ｋｍ　　２ｋｍ　　　　　 　０９日１５時から１８時まで　西　　　　　　　４０ｋｍ　　２ｋｍ　　　　　 　０９日１８時から２１時まで　西　　　　　　　４０ｋｍ　　２ｋｍ　　　　　 　０９日２１時から２４時まで　西　　　　　　　５０ｋｍ　　２ｋｍ　　　　　 　１０日００時から０３時まで　北西　　　　　　５０ｋｍ　　２ｋｍ　　　　　 　１０日０３時から０６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。