2026-07-09T08:00:00Z 通常 気象庁本庁 気象庁 2026-07-09T17:00:00+09:00 2026-07-09T18:00:00+09:00 2026-07-10T12:00:00+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 2026-07-09T18:00:00+09:00 2026-07-09T21:00:00+09:00 降灰 70 +30.5611+129.7200/+30.5619+129.7400/+30.5626+129.7600/+30.5600+129.7692/+30.5568+129.7800/+30.5539+129.8000/+30.5523+129.8200/+30.5495+129.8400/+30.5458+129.8600/+30.5400+129.8722/+30.5383+129.8800/+30.5354+129.9000/+30.5316+129.9200/+30.5258+129.9400/+30.5200+129.9497/+30.5182+129.9600/+30.5160+129.9800/+30.5146+130.0000/+30.5120+130.0200/+30.5050+130.0400/+30.5000+130.0474/+30.4989+130.0600/+30.4980+130.0800/+30.4960+130.1000/+30.4921+130.1200/+30.4800+130.1378/+30.4799+130.1400/+30.4798+130.1600/+30.4799+130.1800/+30.4799+130.2000/+30.4798+130.2200/+30.4600+130.2398/+30.4400+130.2399/+30.4201+130.2200/+30.4200+130.2000/+30.4200+130.1800/+30.4200+130.1771/+30.4106+130.1600/+30.4090+130.1400/+30.4115+130.1200/+30.4193+130.1000/+30.4200+130.0800/+30.4209+130.0600/+30.4222+130.0400/+30.4269+130.0200/+30.4301+130.0000/+30.4365+129.9800/+30.4400+129.9674/+30.4407+129.9600/+30.4446+129.9400/+30.4470+129.9200/+30.4479+129.9000/+30.4558+129.8800/+30.4600+129.8717/+30.4651+129.8600/+30.4719+129.8400/+30.4790+129.8200/+30.4800+129.8155/+30.4832+129.8000/+30.4917+129.7800/+30.5000+129.7624/+30.5012+129.7600/+30.5111+129.7400/+30.5200+129.7277/+30.5400+129.7260/+30.5540+129.7200/+30.5600+129.7180/+30.5611+129.7200/ 西 50 鹿児島県屋久島町 4650500 小さな噴石の落下 75 1 +30.4701+130.2000/+30.4600+130.2101/+30.4588+130.2200/+30.4400+130.2388/+30.4212+130.2200/+30.4255+130.2000/+30.4400+130.1841/+30.4600+130.1884/+30.4701+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 +30.6001+129.7000/+30.6029+129.7200/+30.6071+129.7400/+30.6046+129.7600/+30.6014+129.7800/+30.6000+129.7895/+30.5979+129.8000/+30.5894+129.8200/+30.5858+129.8400/+30.5826+129.8600/+30.5800+129.8770/+30.5796+129.8800/+30.5753+129.9000/+30.5697+129.9200/+30.5600+129.9363/+30.5590+129.9400/+30.5555+129.9600/+30.5490+129.9800/+30.5400+129.9940/+30.5384+130.0000/+30.5359+130.0200/+30.5324+130.0400/+30.5200+130.0600/+30.5200+130.0601/+30.5181+130.0800/+30.5151+130.1000/+30.5018+130.1200/+30.5000+130.1220/+30.4990+130.1400/+30.4983+130.1600/+30.4921+130.1800/+30.4800+130.1925/+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/+30.4201+130.1600/+30.4203+130.1400/+30.4208+130.1200/+30.4217+130.1000/+30.4245+130.0800/+30.4309+130.0600/+30.4400+130.0448/+30.4409+130.0400/+30.4420+130.0200/+30.4469+130.0000/+30.4522+129.9800/+30.4600+129.9623/+30.4608+129.9600/+30.4696+129.9400/+30.4730+129.9200/+30.4783+129.9000/+30.4800+129.8966/+30.4848+129.8800/+30.4929+129.8600/+30.5000+129.8424/+30.5013+129.8400/+30.5118+129.8200/+30.5200+129.8040/+30.5234+129.8000/+30.5341+129.7800/+30.5400+129.7670/+30.5429+129.7600/+30.5522+129.7400/+30.5600+129.7246/+30.5680+129.7200/+30.5800+129.7148/+30.5999+129.7000/+30.6000+129.6998/+30.6001+129.7000/ 西 50 鹿児島県屋久島町 4650500 小さな噴石の落下 75 1 +30.4710+130.2000/+30.4695+130.2200/+30.4600+130.2295/+30.4400+130.2388/+30.4212+130.2200/+30.4242+130.2000/+30.4400+130.1832/+30.4600+130.1874/+30.4710+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 +30.6605+129.7200/+30.6678+129.7400/+30.6674+129.7600/+30.6600+129.7778/+30.6593+129.7800/+30.6537+129.8000/+30.6448+129.8200/+30.6400+129.8277/+30.6349+129.8400/+30.6272+129.8600/+30.6204+129.8800/+30.6200+129.8810/+30.6152+129.9000/+30.6025+129.9200/+30.6000+129.9232/+30.5962+129.9400/+30.5811+129.9600/+30.5800+129.9611/+30.5739+129.9800/+30.5626+130.0000/+30.5600+130.0035/+30.5572+130.0200/+30.5509+130.0400/+30.5400+130.0521/+30.5384+130.0600/+30.5351+130.0800/+30.5200+130.0982/+30.5197+130.1000/+30.5184+130.1200/+30.5091+130.1400/+30.5000+130.1491/+30.4995+130.1600/+30.4987+130.1800/+30.4800+130.1998/+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/+30.4210+130.1600/+30.4247+130.1400/+30.4400+130.1216/+30.4403+130.1200/+30.4430+130.1000/+30.4507+130.0800/+30.4600+130.0672/+30.4613+130.0600/+30.4655+130.0400/+30.4746+130.0200/+30.4800+130.0112/+30.4833+130.0000/+30.4910+129.9800/+30.5000+129.9683/+30.5049+129.9600/+30.5131+129.9400/+30.5200+129.9253/+30.5215+129.9200/+30.5243+129.9000/+30.5398+129.8800/+30.5400+129.8798/+30.5511+129.8600/+30.5600+129.8405/+30.5603+129.8400/+30.5714+129.8200/+30.5800+129.8035/+30.5819+129.8000/+30.5956+129.7800/+30.6000+129.7758/+30.6152+129.7600/+30.6200+129.7494/+30.6286+129.7400/+30.6400+129.7249/+30.6579+129.7200/+30.6600+129.7191/+30.6605+129.7200/ 北西 50 鹿児島県屋久島町 4650500 小さな噴石の落下 75 1 +30.4735+130.2000/+30.4725+130.2200/+30.4600+130.2325/+30.4400+130.2388/+30.4212+130.2200/+30.4244+130.2000/+30.4400+130.1840/+30.4600+130.1852/+30.4735+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 +30.6478+129.7600/+30.6416+129.7800/+30.6400+129.7848/+30.6319+129.8000/+30.6296+129.8200/+30.6290+129.8400/+30.6250+129.8600/+30.6200+129.8708/+30.6167+129.8800/+30.6087+129.9000/+30.6000+129.9168/+30.5993+129.9200/+30.5949+129.9400/+30.5800+129.9581/+30.5793+129.9600/+30.5760+129.9800/+30.5676+130.0000/+30.5600+130.0115/+30.5588+130.0200/+30.5553+130.0400/+30.5430+130.0600/+30.5400+130.0632/+30.5378+130.0800/+30.5341+130.1000/+30.5200+130.1164/+30.5196+130.1200/+30.5172+130.1400/+30.5000+130.1579/+30.4998+130.1600/+30.4995+130.1800/+30.4916+130.2000/+30.4800+130.2116/+30.4799+130.2200/+30.4600+130.2399/+30.4400+130.2400/+30.4200+130.2200/+30.4200+130.2000/+30.4204+130.1800/+30.4254+130.1600/+30.4400+130.1424/+30.4404+130.1400/+30.4445+130.1200/+30.4560+130.1000/+30.4600+130.0948/+30.4623+130.0800/+30.4693+130.0600/+30.4800+130.0467/+30.4823+130.0400/+30.4877+130.0200/+30.5000+130.0008/+30.5002+130.0000/+30.5047+129.9800/+30.5115+129.9600/+30.5200+129.9494/+30.5249+129.9400/+30.5309+129.9200/+30.5378+129.9000/+30.5400+129.8966/+30.5453+129.8800/+30.5515+129.8600/+30.5600+129.8425/+30.5617+129.8400/+30.5733+129.8200/+30.5800+129.8075/+30.5847+129.8000/+30.5986+129.7800/+30.6000+129.7785/+30.6200+129.7749/+30.6270+129.7600/+30.6400+129.7483/+30.6478+129.7600/ 北西 50 鹿児島県屋久島町 4650500 小さな噴石の落下 75 1 +30.4727+130.2000/+30.4710+130.2200/+30.4600+130.2310/+30.4400+130.2388/+30.4212+130.2200/+30.4241+130.2000/+30.4400+130.1839/+30.4600+130.1862/+30.4727+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 +30.6416+129.7600/+30.6400+129.7687/+30.6339+129.7600/+30.6400+129.7577/+30.6416+129.7600/ +30.6297+129.7800/+30.6314+129.8000/+30.6264+129.8200/+30.6245+129.8400/+30.6208+129.8600/+30.6200+129.8626/+30.6167+129.8800/+30.6109+129.9000/+30.6000+129.9149/+30.5977+129.9200/+30.5937+129.9400/+30.5820+129.9600/+30.5800+129.9624/+30.5753+129.9800/+30.5662+130.0000/+30.5600+130.0086/+30.5582+130.0200/+30.5547+130.0400/+30.5400+130.0591/+30.5397+130.0600/+30.5371+130.0800/+30.5327+130.1000/+30.5200+130.1153/+30.5195+130.1200/+30.5177+130.1400/+30.5000+130.1586/+30.4998+130.1600/+30.4995+130.1800/+30.4937+130.2000/+30.4800+130.2137/+30.4799+130.2200/+30.4600+130.2399/+30.4400+130.2400/+30.4200+130.2200/+30.4200+130.2000/+30.4208+130.1800/+30.4354+130.1600/+30.4400+130.1547/+30.4411+130.1400/+30.4459+130.1200/+30.4600+130.1015/+30.4603+130.1000/+30.4641+130.0800/+30.4739+130.0600/+30.4800+130.0511/+30.4827+130.0400/+30.4896+130.0200/+30.4998+130.0000/+30.5000+129.9995/+30.5031+129.9800/+30.5166+129.9600/+30.5200+129.9544/+30.5258+129.9400/+30.5309+129.9200/+30.5400+129.9003/+30.5401+129.9000/+30.5466+129.8800/+30.5535+129.8600/+30.5600+129.8465/+30.5648+129.8400/+30.5775+129.8200/+30.5800+129.8145/+30.5863+129.8000/+30.5952+129.7800/+30.6000+129.7720/+30.6200+129.7730/+30.6297+129.7800/ 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/+30.4667+130.2200/+30.4600+130.2267/+30.4400+130.2388/+30.4212+130.2200/+30.4233+130.2000/+30.4400+130.1832/+30.4600+130.1844/+30.4747+130.2000/ 北西 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 +30.6418+129.7600/+30.6400+129.7641/+30.6250+129.7800/+30.6245+129.8000/+30.6216+129.8200/+30.6200+129.8363/+30.6197+129.8400/+30.6147+129.8600/+30.6077+129.8800/+30.6000+129.8941/+30.5979+129.9000/+30.5928+129.9200/+30.5888+129.9400/+30.5800+129.9503/+30.5761+129.9600/+30.5734+129.9800/+30.5655+130.0000/+30.5600+130.0077/+30.5578+130.0200/+30.5540+130.0400/+30.5428+130.0600/+30.5400+130.0634/+30.5375+130.0800/+30.5342+130.1000/+30.5200+130.1189/+30.5199+130.1200/+30.5179+130.1400/+30.5017+130.1600/+30.5000+130.1618/+30.4995+130.1800/+30.4954+130.2000/+30.4800+130.2155/+30.4799+130.2200/+30.4600+130.2399/+30.4400+130.2400/+30.4200+130.2200/+30.4200+130.2000/+30.4205+130.1800/+30.4273+130.1600/+30.4400+130.1447/+30.4407+130.1400/+30.4449+130.1200/+30.4591+130.1000/+30.4600+130.0990/+30.4639+130.0800/+30.4748+130.0600/+30.4800+130.0536/+30.4830+130.0400/+30.4884+130.0200/+30.5000+130.0025/+30.5008+130.0000/+30.5042+129.9800/+30.5149+129.9600/+30.5200+129.9515/+30.5234+129.9400/+30.5284+129.9200/+30.5339+129.9000/+30.5400+129.8917/+30.5456+129.8800/+30.5536+129.8600/+30.5600+129.8429/+30.5620+129.8400/+30.5739+129.8200/+30.5800+129.8000/+30.5800+129.7999/+30.5891+129.7800/+30.6000+129.7626/+30.6199+129.7600/+30.6200+129.7600/+30.6400+129.7568/+30.6418+129.7600/ 北西 50 鹿児島県屋久島町 4650500 小さな噴石の落下 75 1 +30.4740+130.2000/+30.4675+130.2200/+30.4600+130.2275/+30.4400+130.2388/+30.4212+130.2200/+30.4235+130.2000/+30.4400+130.1833/+30.4600+130.1854/+30.4740+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１８時から１０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 　０９日１８時から２１時まで　西　　　　　　　５０ｋｍ　　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　　　　　 　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　　　　　 　 　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。