2026-09-06T20:00:00Z 通常 気象庁本庁 気象庁 2026-09-07T05:00:00+09:00 2026-09-07T06:00:00+09:00 2026-09-08T00:00:00+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、７日０９時から１２時までは火口から南西方向、７日２１時から２４時までは火口から南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 鹿児島県十島村 4630400 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 鹿児島県十島村 4630400 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 2026-09-07T06:00:00+09:00 2026-09-07T09:00:00+09:00 降灰 70 +30.4651+130.2000/+30.4717+130.2200/+30.4600+130.2317/+30.4400+130.2399/+30.4200+130.2397/+30.4002+130.2200/+30.4000+130.2198/+30.3800+130.2118/+30.3681+130.2000/+30.3600+130.1969/+30.3420+130.1800/+30.3400+130.1786/+30.3200+130.1667/+30.3126+130.1600/+30.3000+130.1538/+30.2853+130.1400/+30.2800+130.1352/+30.2605+130.1200/+30.2600+130.1195/+30.2400+130.1065/+30.2328+130.1000/+30.2200+130.0862/+30.2091+130.0800/+30.2000+130.0742/+30.1841+130.0600/+30.1800+130.0558/+30.1642+130.0400/+30.1600+130.0342/+30.1488+130.0200/+30.1400+130.0088/+30.1310+130.0000/+30.1200+129.9889/+30.1092+129.9800/+30.1000+129.9689/+30.0947+129.9600/+30.0800+129.9450/+30.0730+129.9400/+30.0600+129.9252/+30.0543+129.9200/+30.0400+129.9050/+30.0360+129.9000/+30.0281+129.8800/+30.0200+129.8660/+30.0155+129.8600/+30.0055+129.8400/+30.0000+129.8255/+29.9985+129.8200/+29.9918+129.8000/+30.0000+129.7952/+30.0084+129.8000/+30.0200+129.8191/+30.0280+129.8200/+30.0400+129.8205/+30.0600+129.8260/+30.0800+129.8355/+30.0904+129.8400/+30.1000+129.8436/+30.1200+129.8600/+30.1400+129.8770/+30.1425+129.8800/+30.1600+129.8897/+30.1778+129.9000/+30.1800+129.9017/+30.1946+129.9200/+30.2000+129.9236/+30.2200+129.9367/+30.2232+129.9400/+30.2400+129.9568/+30.2442+129.9600/+30.2600+129.9747/+30.2633+129.9800/+30.2768+130.0000/+30.2800+130.0027/+30.2992+130.0200/+30.3000+130.0206/+30.3180+130.0400/+30.3200+130.0418/+30.3375+130.0600/+30.3400+130.0618/+30.3577+130.0800/+30.3600+130.0820/+30.3779+130.1000/+30.3800+130.1017/+30.3982+130.1200/+30.4000+130.1216/+30.4181+130.1400/+30.4200+130.1416/+30.4383+130.1600/+30.4400+130.1608/+30.4592+130.1800/+30.4600+130.1949/+30.4651+130.2000/ 南西 60 鹿児島県屋久島町 4650500 小さな噴石の落下 75 1 +30.4576+130.2000/+30.4588+130.2200/+30.4400+130.2388/+30.4206+130.2200/+30.4200+130.2097/+30.4125+130.2000/+30.4200+130.1858/+30.4400+130.1804/+30.4576+130.2000/ 南西 3 鹿児島県屋久島町 4650500 2026-09-07T09:00:00+09:00 2026-09-07T12:00:00+09:00 降灰 70 +30.4672+130.2000/+30.4731+130.2200/+30.4600+130.2331/+30.4400+130.2399/+30.4200+130.2396/+30.4004+130.2200/+30.4000+130.2195/+30.3805+130.2000/+30.3800+130.1990/+30.3607+130.1800/+30.3600+130.1790/+30.3405+130.1600/+30.3400+130.1594/+30.3200+130.1411/+30.3187+130.1400/+30.3000+130.1286/+30.2909+130.1200/+30.2800+130.1097/+30.2690+130.1000/+30.2600+130.0907/+30.2483+130.0800/+30.2400+130.0709/+30.2278+130.0600/+30.2200+130.0552/+30.2023+130.0400/+30.2000+130.0373/+30.1839+130.0200/+30.1800+130.0140/+30.1642+130.0000/+30.1600+129.9958/+30.1400+129.9813/+30.1387+129.9800/+30.1265+129.9600/+30.1200+129.9485/+30.1095+129.9400/+30.1000+129.9294/+30.0937+129.9200/+30.0800+129.9030/+30.0769+129.9000/+30.0698+129.8800/+30.0600+129.8620/+30.0585+129.8600/+30.0521+129.8400/+30.0591+129.8200/+30.0600+129.8188/+30.0800+129.8180/+30.1000+129.8178/+30.1036+129.8200/+30.1200+129.8309/+30.1307+129.8400/+30.1400+129.8454/+30.1591+129.8600/+30.1600+129.8606/+30.1779+129.8800/+30.1800+129.8816/+30.2000+129.8974/+30.2028+129.9000/+30.2162+129.9200/+30.2200+129.9227/+30.2379+129.9400/+30.2400+129.9417/+30.2600+129.9545/+30.2660+129.9600/+30.2745+129.9800/+30.2800+129.9862/+30.2933+130.0000/+30.3000+130.0070/+30.3124+130.0200/+30.3200+130.0298/+30.3299+130.0400/+30.3400+130.0530/+30.3467+130.0600/+30.3600+130.0766/+30.3635+130.0800/+30.3796+130.1000/+30.3800+130.1004/+30.3992+130.1200/+30.4000+130.1207/+30.4192+130.1400/+30.4200+130.1408/+30.4392+130.1600/+30.4400+130.1606/+30.4594+130.1800/+30.4600+130.1928/+30.4672+130.2000/ 南西 60 鹿児島県屋久島町 4650500 小さな噴石の落下 75 1 +30.4570+130.2000/+30.4588+130.2200/+30.4400+130.2388/+30.4212+130.2200/+30.4205+130.2000/+30.4400+130.1816/+30.4570+130.2000/ 南西 2 鹿児島県屋久島町 4650500 2026-09-07T12:00:00+09:00 2026-09-07T15:00:00+09:00 降灰 70 +30.4610+130.2200/+30.4600+130.2210/+30.4400+130.2399/+30.4200+130.2392/+30.4008+130.2200/+30.4000+130.2151/+30.3849+130.2000/+30.3801+130.1800/+30.3800+130.1798/+30.3603+130.1600/+30.3600+130.1593/+30.3408+130.1400/+30.3400+130.1386/+30.3213+130.1200/+30.3200+130.1183/+30.3017+130.1000/+30.3000+130.0979/+30.2818+130.0800/+30.2800+130.0783/+30.2610+130.0600/+30.2600+130.0590/+30.2400+130.0458/+30.2218+130.0400/+30.2200+130.0398/+30.2000+130.0286/+30.1901+130.0200/+30.1800+130.0106/+30.1629+130.0000/+30.1600+129.9981/+30.1400+129.9896/+30.1256+129.9800/+30.1200+129.9727/+30.1051+129.9600/+30.1000+129.9573/+30.0800+129.9453/+30.0673+129.9400/+30.0600+129.9353/+30.0400+129.9249/+30.0302+129.9200/+30.0200+129.9133/+30.0060+129.9000/+30.0000+129.8871/+29.9938+129.8800/+29.9800+129.8660/+29.9733+129.8600/+29.9719+129.8400/+29.9800+129.8359/+30.0000+129.8303/+30.0200+129.8320/+30.0400+129.8333/+30.0600+129.8390/+30.0618+129.8400/+30.0800+129.8499/+30.1000+129.8578/+30.1047+129.8600/+30.1200+129.8662/+30.1359+129.8800/+30.1400+129.8818/+30.1600+129.8892/+30.1800+129.8973/+30.1837+129.9000/+30.1959+129.9200/+30.2000+129.9224/+30.2200+129.9316/+30.2293+129.9400/+30.2400+129.9468/+30.2597+129.9600/+30.2600+129.9603/+30.2725+129.9800/+30.2800+129.9944/+30.2856+130.0000/+30.3000+130.0106/+30.3094+130.0200/+30.3200+130.0295/+30.3305+130.0400/+30.3400+130.0477/+30.3522+130.0600/+30.3600+130.0683/+30.3716+130.0800/+30.3800+130.0914/+30.3886+130.1000/+30.3999+130.1200/+30.4000+130.1201/+30.4197+130.1400/+30.4200+130.1403/+30.4397+130.1600/+30.4400+130.1604/+30.4596+130.1800/+30.4600+130.2000/+30.4600+130.2181/+30.4610+130.2200/ 南西 60 鹿児島県屋久島町 4650500 小さな噴石の落下 75 1 +30.4579+130.2000/+30.4588+130.2200/+30.4400+130.2388/+30.4212+130.2200/+30.4200+130.2095/+30.4105+130.2000/+30.4200+130.1845/+30.4400+130.1821/+30.4579+130.2000/ 南西 3 鹿児島県屋久島町 4650500 2026-09-07T15:00:00+09:00 2026-09-07T18:00:00+09:00 降灰 70 +30.4582+130.1800/+30.4600+130.2000/+30.4600+130.2200/+30.4400+130.2399/+30.4200+130.2396/+30.4004+130.2200/+30.4000+130.2196/+30.3804+130.2000/+30.3800+130.1994/+30.3605+130.1800/+30.3600+130.1793/+30.3404+130.1600/+30.3400+130.1596/+30.3200+130.1414/+30.3186+130.1400/+30.3000+130.1286/+30.2911+130.1200/+30.2800+130.1101/+30.2694+130.1000/+30.2600+130.0940/+30.2455+130.0800/+30.2400+130.0753/+30.2238+130.0600/+30.2200+130.0581/+30.2000+130.0555/+30.1885+130.0400/+30.1800+130.0344/+30.1600+130.0245/+30.1545+130.0200/+30.1400+130.0084/+30.1311+130.0000/+30.1200+129.9929/+30.1000+129.9857/+30.0924+129.9800/+30.0807+129.9600/+30.0800+129.9592/+30.0600+129.9499/+30.0410+129.9400/+30.0400+129.9394/+30.0200+129.9303/+30.0031+129.9200/+30.0000+129.9178/+29.9800+129.9036/+29.9766+129.9000/+29.9600+129.8808/+29.9587+129.8800/+29.9400+129.8698/+29.9227+129.8600/+29.9200+129.8550/+29.9091+129.8400/+29.9200+129.8225/+29.9400+129.8204/+29.9600+129.8223/+29.9800+129.8256/+30.0000+129.8279/+30.0200+129.8372/+30.0245+129.8400/+30.0400+129.8491/+30.0600+129.8583/+30.0633+129.8600/+30.0800+129.8657/+30.1000+129.8727/+30.1055+129.8800/+30.1200+129.8906/+30.1400+129.8988/+30.1418+129.9000/+30.1576+129.9200/+30.1600+129.9211/+30.1800+129.9302/+30.1912+129.9400/+30.2000+129.9441/+30.2200+129.9564/+30.2239+129.9600/+30.2365+129.9800/+30.2400+129.9819/+30.2575+130.0000/+30.2600+130.0029/+30.2774+130.0200/+30.2800+130.0214/+30.2996+130.0400/+30.3000+130.0402/+30.3200+130.0526/+30.3274+130.0600/+30.3400+130.0671/+30.3530+130.0800/+30.3600+130.0850/+30.3750+130.1000/+30.3800+130.1032/+30.3968+130.1200/+30.4000+130.1224/+30.4176+130.1400/+30.4200+130.1419/+30.4381+130.1600/+30.4400+130.1618/+30.4582+130.1800/ +29.9047+129.8000/+29.9000+129.8129/+29.8922+129.8000/+29.9000+129.7979/+29.9047+129.8000/ 南西 70 鹿児島県十島村 4630400 鹿児島県屋久島町 4650500 小さな噴石の落下 75 1 +30.4577+130.2000/+30.4588+130.2200/+30.4400+130.2388/+30.4212+130.2200/+30.4200+130.2095/+30.4095+130.2000/+30.4200+130.1849/+30.4400+130.1823/+30.4577+130.2000/ 南西 3 鹿児島県屋久島町 4650500 2026-09-07T18:00:00+09:00 2026-09-07T21:00:00+09:00 降灰 70 +30.4504+130.1800/+30.4600+130.2000/+30.4600+130.2200/+30.4400+130.2399/+30.4200+130.2399/+30.4001+130.2200/+30.4000+130.2200/+30.3800+130.2180/+30.3619+130.2000/+30.3600+130.1992/+30.3400+130.1847/+30.3352+130.1800/+30.3200+130.1769/+30.3014+130.1600/+30.3000+130.1593/+30.2800+130.1518/+30.2662+130.1400/+30.2600+130.1375/+30.2400+130.1273/+30.2315+130.1200/+30.2200+130.1150/+30.2000+130.1006/+30.1989+130.1000/+30.1800+130.0949/+30.1600+130.0868/+30.1493+130.0800/+30.1400+130.0732/+30.1230+130.0600/+30.1200+130.0578/+30.1000+130.0491/+30.0924+130.0400/+30.0800+130.0275/+30.0639+130.0200/+30.0600+130.0178/+30.0400+130.0027/+30.0359+130.0000/+30.0200+129.9856/+30.0141+129.9800/+30.0000+129.9674/+29.9911+129.9600/+29.9800+129.9411/+29.9794+129.9400/+29.9730+129.9200/+29.9604+129.9000/+29.9800+129.8897/+30.0000+129.8853/+30.0200+129.8918/+30.0400+129.8987/+30.0422+129.9000/+30.0600+129.9084/+30.0800+129.9194/+30.0808+129.9200/+30.1000+129.9297/+30.1200+129.9382/+30.1241+129.9400/+30.1400+129.9494/+30.1513+129.9600/+30.1600+129.9641/+30.1795+129.9800/+30.1800+129.9802/+30.2000+129.9854/+30.2200+129.9949/+30.2258+130.0000/+30.2378+130.0200/+30.2400+130.0216/+30.2600+130.0355/+30.2649+130.0400/+30.2800+130.0451/+30.2970+130.0600/+30.3000+130.0614/+30.3200+130.0794/+30.3206+130.0800/+30.3400+130.0890/+30.3507+130.1000/+30.3600+130.1045/+30.3756+130.1200/+30.3800+130.1218/+30.3984+130.1400/+30.4000+130.1406/+30.4195+130.1600/+30.4200+130.1601/+30.4400+130.1696/+30.4504+130.1800/ 南西 60 鹿児島県十島村 4630400 鹿児島県屋久島町 4650500 小さな噴石の落下 75 1 +30.4581+130.2000/+30.4588+130.2200/+30.4400+130.2388/+30.4206+130.2200/+30.4200+130.2121/+30.4097+130.2000/+30.4200+130.1840/+30.4400+130.1819/+30.4581+130.2000/ 南西 3 鹿児島県屋久島町 4650500 2026-09-07T21:00:00+09:00 2026-09-08T00:00:00+09:00 降灰 70 +30.4567+130.1800/+30.4600+130.2000/+30.4600+130.2200/+30.4400+130.2399/+30.4200+130.2398/+30.4001+130.2200/+30.4000+130.2199/+30.3800+130.2164/+30.3636+130.2000/+30.3600+130.1987/+30.3401+130.1800/+30.3400+130.1799/+30.3200+130.1757/+30.3025+130.1600/+30.3000+130.1587/+30.2800+130.1519/+30.2658+130.1400/+30.2600+130.1366/+30.2400+130.1257/+30.2324+130.1200/+30.2200+130.1117/+30.2057+130.1000/+30.2000+130.0966/+30.1800+130.0896/+30.1621+130.0800/+30.1600+130.0786/+30.1400+130.0616/+30.1382+130.0600/+30.1200+130.0453/+30.1117+130.0400/+30.1000+130.0300/+30.0919+130.0200/+30.0818+130.0000/+30.0800+129.9980/+30.0600+129.9865/+30.0487+129.9800/+30.0400+129.9737/+30.0245+129.9600/+30.0200+129.9528/+30.0123+129.9400/+30.0000+129.9204/+29.9997+129.9200/+29.9835+129.9000/+29.9803+129.8800/+29.9800+129.8789/+29.9705+129.8600/+29.9800+129.8482/+30.0000+129.8424/+30.0200+129.8575/+30.0249+129.8600/+30.0400+129.8647/+30.0600+129.8717/+30.0734+129.8800/+30.0800+129.8847/+30.1000+129.8979/+30.1021+129.9000/+30.1200+129.9148/+30.1264+129.9200/+30.1400+129.9267/+30.1600+129.9363/+30.1649+129.9400/+30.1800+129.9500/+30.1948+129.9600/+30.2000+129.9636/+30.2170+129.9800/+30.2200+129.9815/+30.2400+129.9932/+30.2471+130.0000/+30.2600+130.0200/+30.2800+130.0386/+30.2814+130.0400/+30.3000+130.0503/+30.3098+130.0600/+30.3200+130.0665/+30.3334+130.0800/+30.3400+130.0836/+30.3565+130.1000/+30.3600+130.1019/+30.3782+130.1200/+30.3800+130.1208/+30.3994+130.1400/+30.4000+130.1402/+30.4199+130.1600/+30.4200+130.1600/+30.4400+130.1633/+30.4567+130.1800/ 南西 60 鹿児島県十島村 4630400 鹿児島県屋久島町 4650500 小さな噴石の落下 75 1 +30.4580+130.2000/+30.4588+130.2200/+30.4400+130.2388/+30.4208+130.2200/+30.4200+130.2100/+30.4111+130.2000/+30.4200+130.1836/+30.4400+130.1819/+30.4580+130.2000/ 南西 3 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、７日０９時から１２時までは火口から南西方向、７日２１時から２４時までは火口から南西方向に降灰が予想されます。 　７日６時から７日２４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 　０７日０６時から０９時まで　南西　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　０７日０９時から１２時まで　南西　　　　　　６０ｋｍ　　２ｋｍ　　　　　 　０７日１２時から１５時まで　南西　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　０７日１５時から１８時まで　南西　　　　　　７０ｋｍ　　３ｋｍ　　　　　 　０７日１８時から２１時まで　南西　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　０７日２１時から２４時まで　南西　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　 　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、十島村 　 　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。