2026-09-07T23:00:00Z 通常 気象庁本庁 気象庁 2026-09-08T08:00:00+09:00 2026-09-08T09:00:00+09:00 2026-09-09T03:00:00+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、８日０９時から１２時までは火口から南方向、８日２１時から２４時までは火口から南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 2026-09-08T09:00:00+09:00 2026-09-08T12:00:00+09:00 降灰 70 +30.4598+130.2000/+30.4600+130.2200/+30.4421+130.2400/+30.4400+130.2421/+30.4200+130.2583/+30.4000+130.2587/+30.3800+130.2585/+30.3600+130.2579/+30.3400+130.2576/+30.3200+130.2566/+30.3000+130.2569/+30.2800+130.2561/+30.2600+130.2560/+30.2400+130.2566/+30.2200+130.2566/+30.2000+130.2576/+30.1800+130.2593/+30.1765+130.2600/+30.1600+130.2661/+30.1400+130.2649/+30.1200+130.2631/+30.1000+130.2632/+30.0800+130.2630/+30.0600+130.2607/+30.0550+130.2600/+30.0400+130.2576/+30.0200+130.2555/+30.0000+130.2527/+29.9800+130.2437/+29.9709+130.2400/+29.9600+130.2329/+29.9400+130.2202/+29.9396+130.2200/+29.9200+130.2088/+29.9065+130.2000/+29.9200+130.1941/+29.9400+130.1849/+29.9481+130.1800/+29.9600+130.1729/+29.9796+130.1600/+29.9800+130.1598/+30.0000+130.1481/+30.0200+130.1474/+30.0400+130.1468/+30.0600+130.1413/+30.0657+130.1400/+30.0800+130.1369/+30.1000+130.1334/+30.1200+130.1312/+30.1400+130.1297/+30.1600+130.1294/+30.1800+130.1300/+30.2000+130.1372/+30.2164+130.1400/+30.2200+130.1402/+30.2400+130.1413/+30.2600+130.1430/+30.2800+130.1441/+30.3000+130.1462/+30.3200+130.1531/+30.3286+130.1600/+30.3400+130.1607/+30.3600+130.1613/+30.3800+130.1629/+30.3998+130.1800/+30.4000+130.1800/+30.4200+130.1801/+30.4400+130.1802/+30.4598+130.2000/ 南 60 鹿児島県屋久島町 4650500 小さな噴石の落下 75 1 +30.4527+130.2000/+30.4588+130.2200/+30.4400+130.2388/+30.4200+130.2315/+30.4062+130.2200/+30.4077+130.2000/+30.4200+130.1901/+30.4400+130.1873/+30.4527+130.2000/ 南西 3 鹿児島県屋久島町 4650500 2026-09-08T12:00:00+09:00 2026-09-08T15:00:00+09:00 降灰 70 +30.4739+130.2200/+30.4600+130.2339/+30.4598+130.2400/+30.4400+130.2598/+30.4347+130.2600/+30.4200+130.2747/+30.4000+130.2797/+30.3973+130.2800/+30.3800+130.2971/+30.3600+130.2996/+30.3570+130.3000/+30.3400+130.3153/+30.3200+130.3190/+30.3115+130.3200/+30.3000+130.3293/+30.2800+130.3369/+30.2676+130.3400/+30.2600+130.3462/+30.2400+130.3558/+30.2260+130.3600/+30.2200+130.3648/+30.2002+130.3800/+30.2000+130.3802/+30.1800+130.3908/+30.1600+130.3997/+30.1594+130.4000/+30.1400+130.4159/+30.1341+130.4200/+30.1200+130.4297/+30.1000+130.4380/+30.0967+130.4400/+30.0800+130.4529/+30.0672+130.4600/+30.0600+130.4643/+30.0400+130.4751/+30.0200+130.4791/+30.0176+130.4800/+30.0000+130.4967/+29.9909+130.4800/+29.9883+130.4600/+29.9966+130.4400/+30.0000+130.4366/+30.0157+130.4200/+30.0200+130.4123/+30.0250+130.4000/+30.0400+130.3882/+30.0487+130.3800/+30.0600+130.3692/+30.0694+130.3600/+30.0800+130.3510/+30.1000+130.3404/+30.1005+130.3400/+30.1200+130.3254/+30.1276+130.3200/+30.1400+130.3107/+30.1573+130.3000/+30.1600+130.2983/+30.1800+130.2889/+30.2000+130.2835/+30.2053+130.2800/+30.2200+130.2683/+30.2400+130.2623/+30.2490+130.2600/+30.2600+130.2533/+30.2800+130.2433/+30.2920+130.2400/+30.3000+130.2341/+30.3200+130.2240/+30.3400+130.2212/+30.3482+130.2200/+30.3600+130.2100/+30.3800+130.2018/+30.4000+130.2002/+30.4087+130.2000/+30.4200+130.1888/+30.4400+130.1815/+30.4588+130.2000/+30.4600+130.2050/+30.4739+130.2200/ 南東 60 鹿児島県屋久島町 4650500 小さな噴石の落下 75 1 +30.4588+130.2200/+30.4400+130.2388/+30.4200+130.2335/+30.4088+130.2200/+30.4200+130.2104/+30.4400+130.2012/+30.4588+130.2200/ 南 3 鹿児島県屋久島町 4650500 2026-09-08T15:00:00+09:00 2026-09-08T18:00:00+09:00 降灰 70 +30.4689+130.2200/+30.4600+130.2289/+30.4598+130.2400/+30.4400+130.2598/+30.4347+130.2600/+30.4200+130.2747/+30.4000+130.2798/+30.3976+130.2800/+30.3800+130.2974/+30.3600+130.2997/+30.3573+130.3000/+30.3400+130.3161/+30.3200+130.3191/+30.3141+130.3200/+30.3000+130.3326/+30.2800+130.3387/+30.2739+130.3400/+30.2600+130.3510/+30.2400+130.3587/+30.2366+130.3600/+30.2200+130.3736/+30.2130+130.3800/+30.2000+130.3946/+30.1860+130.4000/+30.1800+130.4059/+30.1670+130.4200/+30.1600+130.4265/+30.1422+130.4400/+30.1400+130.4441/+30.1293+130.4600/+30.1200+130.4667/+30.1038+130.4800/+30.1000+130.4869/+30.0908+130.5000/+30.0800+130.5110/+30.0695+130.5200/+30.0600+130.5359/+30.0540+130.5400/+30.0400+130.5535/+30.0257+130.5600/+30.0200+130.5637/+30.0054+130.5800/+30.0000+130.5909/+29.9976+130.5800/+29.9940+130.5600/+29.9959+130.5400/+30.0000+130.5286/+30.0063+130.5200/+30.0111+130.5000/+30.0200+130.4841/+30.0219+130.4800/+30.0298+130.4600/+30.0400+130.4491/+30.0449+130.4400/+30.0555+130.4200/+30.0600+130.4126/+30.0687+130.4000/+30.0800+130.3884/+30.0857+130.3800/+30.1000+130.3657/+30.1083+130.3600/+30.1200+130.3539/+30.1361+130.3400/+30.1400+130.3350/+30.1562+130.3200/+30.1600+130.3171/+30.1800+130.3058/+30.2000+130.3028/+30.2101+130.3000/+30.2200+130.2924/+30.2400+130.2824/+30.2486+130.2800/+30.2600+130.2702/+30.2800+130.2622/+30.2995+130.2600/+30.3000+130.2596/+30.3200+130.2430/+30.3400+130.2405/+30.3423+130.2400/+30.3600+130.2228/+30.3800+130.2202/+30.3805+130.2200/+30.4000+130.2006/+30.4200+130.2000/+30.4254+130.2000/+30.4400+130.1856/+30.4549+130.2000/+30.4600+130.2105/+30.4689+130.2200/ 南東 60 鹿児島県屋久島町 4650500 小さな噴石の落下 75 1 +30.4588+130.2200/+30.4400+130.2388/+30.4200+130.2352/+30.4129+130.2200/+30.4200+130.2129/+30.4400+130.2012/+30.4588+130.2200/ 南 3 鹿児島県屋久島町 4650500 2026-09-08T18:00:00+09:00 2026-09-08T21:00:00+09:00 降灰 70 +30.4576+130.2000/+30.4600+130.2200/+30.4596+130.2400/+30.4400+130.2596/+30.4200+130.2599/+30.4161+130.2600/+30.4000+130.2761/+30.3800+130.2794/+30.3600+130.2799/+30.3593+130.2800/+30.3400+130.2963/+30.3200+130.2986/+30.3000+130.3000/+30.2999+130.3000/+30.2800+130.3134/+30.2600+130.3176/+30.2434+130.3200/+30.2400+130.3226/+30.2200+130.3332/+30.2000+130.3388/+30.1978+130.3400/+30.1800+130.3595/+30.1787+130.3600/+30.1600+130.3694/+30.1400+130.3772/+30.1336+130.3800/+30.1200+130.3884/+30.1000+130.4000/+30.0800+130.4161/+30.0731+130.4200/+30.0600+130.4273/+30.0400+130.4382/+30.0332+130.4400/+30.0200+130.4475/+30.0033+130.4600/+30.0000+130.4623/+29.9800+130.4612/+29.9689+130.4600/+29.9617+130.4400/+29.9683+130.4200/+29.9706+130.4000/+29.9800+130.3879/+29.9879+130.3800/+30.0000+130.3707/+30.0086+130.3600/+30.0200+130.3477/+30.0302+130.3400/+30.0400+130.3347/+30.0576+130.3200/+30.0600+130.3171/+30.0800+130.3027/+30.0854+130.3000/+30.1000+130.2947/+30.1200+130.2865/+30.1362+130.2800/+30.1400+130.2763/+30.1600+130.2610/+30.1800+130.2626/+30.1946+130.2600/+30.2000+130.2566/+30.2200+130.2465/+30.2400+130.2427/+30.2600+130.2407/+30.2657+130.2400/+30.2800+130.2299/+30.3000+130.2231/+30.3200+130.2211/+30.3400+130.2203/+30.3457+130.2200/+30.3600+130.2070/+30.3800+130.2007/+30.4000+130.2001/+30.4200+130.2000/+30.4208+130.2000/+30.4400+130.1825/+30.4576+130.2000/ 南 60 鹿児島県屋久島町 4650500 小さな噴石の落下 75 1 +30.4588+130.2200/+30.4400+130.2388/+30.4200+130.2338/+30.4084+130.2200/+30.4200+130.2104/+30.4400+130.2012/+30.4588+130.2200/ 南 3 鹿児島県屋久島町 4650500 2026-09-08T21:00:00+09:00 2026-09-09T00:00:00+09:00 降灰 70 +30.4624+130.2200/+30.4600+130.2224/+30.4591+130.2400/+30.4400+130.2591/+30.4200+130.2599/+30.4000+130.2599/+30.3943+130.2600/+30.3800+130.2739/+30.3600+130.2786/+30.3400+130.2794/+30.3218+130.2800/+30.3200+130.2815/+30.3000+130.2939/+30.2800+130.2973/+30.2600+130.2989/+30.2519+130.3000/+30.2400+130.3087/+30.2200+130.3149/+30.2000+130.3189/+30.1970+130.3200/+30.1800+130.3334/+30.1600+130.3374/+30.1477+130.3400/+30.1400+130.3455/+30.1200+130.3560/+30.1063+130.3600/+30.1000+130.3639/+30.0800+130.3757/+30.0679+130.3800/+30.0600+130.3827/+30.0400+130.3892/+30.0200+130.3969/+30.0147+130.4000/+30.0000+130.4101/+29.9800+130.4109/+29.9600+130.4121/+29.9408+130.4000/+29.9600+130.3863/+29.9684+130.3800/+29.9792+130.3600/+29.9800+130.3589/+29.9931+130.3400/+30.0000+130.3353/+30.0175+130.3200/+30.0200+130.3180/+30.0400+130.3030/+30.0434+130.3000/+30.0600+130.2886/+30.0785+130.2800/+30.0800+130.2788/+30.1000+130.2677/+30.1200+130.2608/+30.1221+130.2600/+30.1400+130.2515/+30.1600+130.2445/+30.1800+130.2458/+30.2000+130.2421/+30.2200+130.2402/+30.2215+130.2400/+30.2400+130.2284/+30.2600+130.2240/+30.2800+130.2217/+30.3000+130.2206/+30.3157+130.2200/+30.3200+130.2168/+30.3400+130.2049/+30.3600+130.2011/+30.3800+130.2003/+30.4000+130.2001/+30.4076+130.2000/+30.4200+130.1876/+30.4400+130.1810/+30.4591+130.2000/+30.4600+130.2173/+30.4624+130.2200/ 南 60 鹿児島県屋久島町 4650500 小さな噴石の落下 75 1 +30.4588+130.2200/+30.4400+130.2388/+30.4200+130.2302/+30.4095+130.2200/+30.4200+130.2112/+30.4400+130.2012/+30.4588+130.2200/ 南 3 鹿児島県屋久島町 4650500 2026-09-09T00:00:00+09:00 2026-09-09T03:00:00+09:00 降灰 70 +30.4689+130.2200/+30.4600+130.2289/+30.4595+130.2400/+30.4400+130.2595/+30.4200+130.2599/+30.4063+130.2600/+30.4000+130.2662/+30.3800+130.2791/+30.3600+130.2798/+30.3563+130.2800/+30.3400+130.2946/+30.3200+130.2984/+30.3010+130.3000/+30.3000+130.3009/+30.2800+130.3150/+30.2600+130.3187/+30.2536+130.3200/+30.2400+130.3302/+30.2200+130.3368/+30.2075+130.3400/+30.2000+130.3502/+30.1864+130.3600/+30.1800+130.3633/+30.1600+130.3724/+30.1400+130.3782/+30.1338+130.3800/+30.1200+130.3861/+30.1000+130.3938/+30.0826+130.4000/+30.0800+130.4020/+30.0600+130.4109/+30.0400+130.4196/+30.0200+130.4123/+30.0000+130.4044/+29.9955+130.4000/+30.0000+130.3954/+30.0080+130.3800/+30.0130+130.3600/+30.0200+130.3519/+30.0368+130.3400/+30.0400+130.3384/+30.0600+130.3223/+30.0627+130.3200/+30.0800+130.3068/+30.0949+130.3000/+30.1000+130.2983/+30.1200+130.2905/+30.1400+130.2835/+30.1510+130.2800/+30.1600+130.2728/+30.1800+130.2705/+30.2000+130.2639/+30.2200+130.2607/+30.2230+130.2600/+30.2400+130.2480/+30.2600+130.2426/+30.2800+130.2408/+30.2850+130.2400/+30.3000+130.2276/+30.3200+130.2220/+30.3400+130.2205/+30.3541+130.2200/+30.3600+130.2144/+30.3800+130.2008/+30.4000+130.2001/+30.4200+130.2000/+30.4203+130.2000/+30.4400+130.1815/+30.4587+130.2000/+30.4600+130.2101/+30.4689+130.2200/ 南 50 鹿児島県屋久島町 4650500 小さな噴石の落下 75 1 +30.4588+130.2200/+30.4400+130.2388/+30.4200+130.2255/+30.4152+130.2200/+30.4200+130.2159/+30.4400+130.2012/+30.4588+130.2200/ 南 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、８日０９時から１２時までは火口から南方向、８日２１時から２４時までは火口から南方向に降灰が予想されます。 　８日９時から９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 　０８日０９時から１２時まで　南　　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　０８日１２時から１５時まで　南東　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　０８日１５時から１８時まで　南東　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　０８日１８時から２１時まで　南　　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　０８日２１時から２４時まで　南　　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　０９日００時から０３時まで　南　　　　　　　５０ｋｍ　　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 　 　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。