2026-09-06T02:00:00Z 通常 気象庁本庁 気象庁 2026-09-06T11:00:00+09:00 2026-09-06T12:00:00+09:00 2026-09-07T06:00:00+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、６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 2026-09-06T12:00:00+09:00 2026-09-06T15:00:00+09:00 降灰 70 +30.4636+130.2200/+30.4600+130.2236/+30.4400+130.2396/+30.4200+130.2382/+30.4018+130.2200/+30.4000+130.2162/+30.3838+130.2000/+30.3800+130.1896/+30.3704+130.1800/+30.3601+130.1600/+30.3600+130.1599/+30.3403+130.1400/+30.3400+130.1393/+30.3208+130.1200/+30.3200+130.1186/+30.3014+130.1000/+30.3000+130.0977/+30.2824+130.0800/+30.2800+130.0764/+30.2635+130.0600/+30.2600+130.0556/+30.2443+130.0400/+30.2400+130.0336/+30.2200+130.0297/+30.2106+130.0200/+30.2000+130.0025/+30.1978+130.0000/+30.1859+129.9800/+30.1800+129.9704/+30.1680+129.9600/+30.1600+129.9528/+30.1400+129.9412/+30.1389+129.9400/+30.1284+129.9200/+30.1200+129.9053/+30.1118+129.9000/+30.1000+129.8852/+30.0944+129.8800/+30.0800+129.8666/+30.0753+129.8600/+30.0641+129.8400/+30.0600+129.8335/+30.0479+129.8200/+30.0400+129.8099/+30.0322+129.8000/+30.0211+129.7800/+30.0200+129.7780/+30.0095+129.7600/+30.0000+129.7415/+29.9989+129.7400/+29.9870+129.7200/+29.9800+129.7081/+29.9753+129.7000/+29.9657+129.6800/+29.9600+129.6728/+29.9475+129.6600/+29.9400+129.6470/+29.9365+129.6400/+29.9354+129.6200/+29.9332+129.6000/+29.9400+129.5911/+29.9600+129.5957/+29.9644+129.6000/+29.9800+129.6119/+30.0000+129.6177/+30.0025+129.6200/+30.0200+129.6376/+30.0222+129.6400/+30.0400+129.6595/+30.0405+129.6600/+30.0600+129.6762/+30.0636+129.6800/+30.0795+129.7000/+30.0800+129.7005/+30.1000+129.7147/+30.1074+129.7200/+30.1200+129.7321/+30.1262+129.7400/+30.1400+129.7558/+30.1442+129.7600/+30.1600+129.7727/+30.1672+129.7800/+30.1769+129.8000/+30.1800+129.8036/+30.1915+129.8200/+30.1998+129.8400/+30.2000+129.8401/+30.2200+129.8510/+30.2277+129.8600/+30.2349+129.8800/+30.2400+129.8865/+30.2555+129.9000/+30.2600+129.9057/+30.2698+129.9200/+30.2800+129.9305/+30.2884+129.9400/+30.2958+129.9600/+30.3000+129.9758/+30.3041+129.9800/+30.3188+130.0000/+30.3200+130.0014/+30.3377+130.0200/+30.3400+130.0240/+30.3574+130.0400/+30.3600+130.0449/+30.3767+130.0600/+30.3800+130.0649/+30.3900+130.0800/+30.4000+130.0985/+30.4011+130.1000/+30.4173+130.1200/+30.4200+130.1283/+30.4302+130.1400/+30.4399+130.1600/+30.4400+130.1602/+30.4594+130.1800/+30.4599+130.2000/+30.4600+130.2156/+30.4636+130.2200/ 南西 80 鹿児島県屋久島町 4650500 小さな噴石の落下 75 1 +30.4535+130.1800/+30.4588+130.2000/+30.4588+130.2200/+30.4400+130.2388/+30.4212+130.2200/+30.4200+130.2154/+30.4046+130.2000/+30.4027+130.1800/+30.4128+130.1600/+30.4200+130.1577/+30.4222+130.1600/+30.4400+130.1664/+30.4535+130.1800/ 南西 6 鹿児島県屋久島町 4650500 2026-09-06T15:00:00+09:00 2026-09-06T18:00:00+09:00 降灰 70 +30.4673+130.2200/+30.4600+130.2273/+30.4400+130.2398/+30.4200+130.2394/+30.4006+130.2200/+30.4000+130.2197/+30.3803+130.2000/+30.3800+130.1997/+30.3601+130.1800/+30.3600+130.1799/+30.3400+130.1714/+30.3286+130.1600/+30.3200+130.1551/+30.3046+130.1400/+30.3000+130.1370/+30.2820+130.1200/+30.2800+130.1183/+30.2600+130.1006/+30.2593+130.1000/+30.2400+130.0889/+30.2302+130.0800/+30.2200+130.0728/+30.2000+130.0684/+30.1913+130.0600/+30.1800+130.0419/+30.1780+130.0400/+30.1600+130.0298/+30.1483+130.0200/+30.1400+130.0104/+30.1305+130.0000/+30.1200+129.9897/+30.1036+129.9800/+30.1000+129.9768/+30.0883+129.9600/+30.0800+129.9495/+30.0651+129.9400/+30.0600+129.9354/+30.0444+129.9200/+30.0400+129.9148/+30.0266+129.9000/+30.0200+129.8910/+30.0122+129.8800/+30.0000+129.8617/+29.9983+129.8600/+29.9832+129.8400/+29.9800+129.8355/+29.9679+129.8200/+29.9600+129.8111/+29.9487+129.8000/+29.9400+129.7893/+29.9321+129.7800/+29.9200+129.7658/+29.9150+129.7600/+29.9040+129.7400/+29.9000+129.7323/+29.8940+129.7200/+29.8818+129.7000/+29.9000+129.6852/+29.9200+129.6985/+29.9225+129.7000/+29.9400+129.7107/+29.9581+129.7200/+29.9600+129.7207/+29.9800+129.7369/+29.9840+129.7400/+30.0000+129.7526/+30.0083+129.7600/+30.0200+129.7692/+30.0369+129.7800/+30.0400+129.7817/+30.0600+129.7958/+30.0637+129.8000/+30.0800+129.8120/+30.0931+129.8200/+30.1000+129.8238/+30.1200+129.8399/+30.1201+129.8400/+30.1397+129.8600/+30.1400+129.8603/+30.1526+129.8800/+30.1600+129.8851/+30.1800+129.8946/+30.1857+129.9000/+30.1957+129.9200/+30.2000+129.9237/+30.2200+129.9390/+30.2210+129.9400/+30.2400+129.9586/+30.2420+129.9600/+30.2600+129.9777/+30.2615+129.9800/+30.2716+130.0000/+30.2800+130.0062/+30.2941+130.0200/+30.3000+130.0259/+30.3139+130.0400/+30.3200+130.0451/+30.3358+130.0600/+30.3400+130.0631/+30.3576+130.0800/+30.3600+130.0819/+30.3783+130.1000/+30.3800+130.1013/+30.3983+130.1200/+30.4000+130.1216/+30.4177+130.1400/+30.4200+130.1418/+30.4379+130.1600/+30.4400+130.1614/+30.4586+130.1800/+30.4599+130.2000/+30.4600+130.2110/+30.4673+130.2200/ 南西 80 鹿児島県屋久島町 4650500 小さな噴石の落下 75 1 +30.4587+130.2000/+30.4588+130.2200/+30.4400+130.2388/+30.4212+130.2200/+30.4200+130.2145/+30.4047+130.2000/+30.4063+130.1800/+30.4200+130.1671/+30.4290+130.1800/+30.4400+130.1813/+30.4587+130.2000/ 南西 4 鹿児島県屋久島町 4650500 2026-09-06T18:00:00+09:00 2026-09-06T21:00:00+09:00 降灰 70 +30.4579+130.1800/+30.4599+130.2000/+30.4599+130.2200/+30.4400+130.2398/+30.4200+130.2396/+30.4003+130.2200/+30.4000+130.2198/+30.3800+130.2087/+30.3713+130.2000/+30.3600+130.1965/+30.3434+130.1800/+30.3400+130.1782/+30.3210+130.1600/+30.3200+130.1592/+30.3000+130.1478/+30.2915+130.1400/+30.2800+130.1344/+30.2636+130.1200/+30.2600+130.1175/+30.2400+130.1007/+30.2387+130.1000/+30.2200+130.0948/+30.2000+130.0849/+30.1941+130.0800/+30.1800+130.0660/+30.1710+130.0600/+30.1600+130.0520/+30.1484+130.0400/+30.1400+130.0313/+30.1228+130.0200/+30.1200+130.0175/+30.1009+130.0000/+30.1000+129.9993/+30.0818+129.9800/+30.0800+129.9776/+30.0605+129.9600/+30.0600+129.9596/+30.0400+129.9429/+30.0370+129.9400/+30.0200+129.9233/+30.0173+129.9200/+30.0044+129.9000/+30.0000+129.8926/+29.9871+129.8800/+29.9800+129.8720/+29.9705+129.8600/+29.9600+129.8417/+29.9587+129.8400/+29.9423+129.8200/+29.9400+129.8178/+29.9257+129.8000/+29.9200+129.7839/+29.9177+129.7800/+29.9000+129.7666/+29.8942+129.7600/+29.8913+129.7400/+29.9000+129.7303/+29.9200+129.7340/+29.9400+129.7368/+29.9517+129.7400/+29.9600+129.7432/+29.9800+129.7548/+29.9894+129.7600/+30.0000+129.7642/+30.0200+129.7697/+30.0400+129.7776/+30.0441+129.7800/+30.0600+129.7903/+30.0734+129.8000/+30.0800+129.8026/+30.1000+129.8132/+30.1052+129.8200/+30.1179+129.8400/+30.1200+129.8424/+30.1332+129.8600/+30.1400+129.8707/+30.1445+129.8800/+30.1600+129.8918/+30.1717+129.9000/+30.1800+129.9093/+30.1862+129.9200/+30.2000+129.9348/+30.2050+129.9400/+30.2200+129.9510/+30.2290+129.9600/+30.2388+129.9800/+30.2400+129.9807/+30.2579+130.0000/+30.2600+130.0023/+30.2781+130.0200/+30.2800+130.0214/+30.2990+130.0400/+30.3000+130.0406/+30.3197+130.0600/+30.3200+130.0602/+30.3400+130.0795/+30.3405+130.0800/+30.3600+130.0932/+30.3663+130.1000/+30.3800+130.1125/+30.3874+130.1200/+30.4000+130.1298/+30.4102+130.1400/+30.4200+130.1451/+30.4349+130.1600/+30.4400+130.1621/+30.4579+130.1800/ 南西 80 鹿児島県屋久島町 4650500 小さな噴石の落下 75 1 +30.4586+130.2000/+30.4588+130.2200/+30.4400+130.2388/+30.4212+130.2200/+30.4200+130.2137/+30.4050+130.2000/+30.4106+130.1800/+30.4200+130.1740/+30.4259+130.1800/+30.4400+130.1814/+30.4586+130.2000/ 南西 4 鹿児島県屋久島町 4650500 2026-09-06T21:00:00+09:00 2026-09-07T00:00:00+09:00 降灰 70 +30.4501+130.1800/+30.4599+130.2000/+30.4599+130.2200/+30.4400+130.2399/+30.4200+130.2398/+30.4000+130.2245/+30.3955+130.2200/+30.3800+130.2189/+30.3610+130.2000/+30.3600+130.1995/+30.3400+130.1933/+30.3263+130.1800/+30.3200+130.1783/+30.3000+130.1639/+30.2957+130.1600/+30.2800+130.1561/+30.2610+130.1400/+30.2600+130.1394/+30.2400+130.1332/+30.2237+130.1200/+30.2200+130.1179/+30.2000+130.1078/+30.1886+130.1000/+30.1800+130.0946/+30.1600+130.0842/+30.1535+130.0800/+30.1400+130.0706/+30.1284+130.0600/+30.1200+130.0481/+30.1075+130.0400/+30.1000+130.0364/+30.0812+130.0200/+30.0800+130.0187/+30.0605+130.0000/+30.0600+129.9995/+30.0401+129.9800/+30.0400+129.9799/+30.0200+129.9614/+30.0189+129.9600/+30.0052+129.9400/+30.0000+129.9337/+29.9858+129.9200/+29.9800+129.9128/+29.9716+129.9000/+29.9635+129.8800/+29.9600+129.8744/+29.9454+129.8600/+29.9400+129.8513/+29.9314+129.8400/+29.9230+129.8200/+29.9200+129.8175/+29.9000+129.8114/+29.8922+129.8000/+29.9000+129.7917/+29.9200+129.7951/+29.9400+129.7976/+29.9456+129.8000/+29.9600+129.8151/+29.9666+129.8200/+29.9800+129.8247/+30.0000+129.8276/+30.0184+129.8400/+30.0200+129.8415/+30.0400+129.8564/+30.0457+129.8600/+30.0600+129.8665/+30.0796+129.8800/+30.0800+129.8803/+30.1000+129.8970/+30.1027+129.9000/+30.1200+129.9195/+30.1204+129.9200/+30.1400+129.9284/+30.1597+129.9400/+30.1600+129.9402/+30.1784+129.9600/+30.1800+129.9611/+30.1996+129.9800/+30.2000+129.9802/+30.2200+129.9907/+30.2299+130.0000/+30.2380+130.0200/+30.2400+130.0214/+30.2600+130.0346/+30.2657+130.0400/+30.2800+130.0473/+30.2929+130.0600/+30.3000+130.0632/+30.3172+130.0800/+30.3200+130.0815/+30.3393+130.1000/+30.3400+130.1003/+30.3600+130.1091/+30.3703+130.1200/+30.3800+130.1235/+30.3967+130.1400/+30.4000+130.1410/+30.4190+130.1600/+30.4200+130.1602/+30.4400+130.1699/+30.4501+130.1800/ 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 +30.4581+130.2000/+30.4588+130.2200/+30.4400+130.2388/+30.4203+130.2200/+30.4200+130.2178/+30.4050+130.2000/+30.4200+130.1812/+30.4400+130.1819/+30.4581+130.2000/ 南西 3 鹿児島県屋久島町 4650500 2026-09-07T00:00:00+09:00 2026-09-07T03:00:00+09:00 降灰 70 +30.4467+130.1800/+30.4599+130.2000/+30.4599+130.2200/+30.4400+130.2399/+30.4200+130.2398/+30.4000+130.2200/+30.3800+130.2186/+30.3613+130.2000/+30.3600+130.1994/+30.3400+130.1892/+30.3307+130.1800/+30.3200+130.1778/+30.3005+130.1600/+30.3000+130.1598/+30.2800+130.1552/+30.2619+130.1400/+30.2600+130.1390/+30.2400+130.1327/+30.2223+130.1200/+30.2200+130.1188/+30.2000+130.1104/+30.1800+130.1000/+30.1600+130.0939/+30.1400+130.0831/+30.1348+130.0800/+30.1200+130.0716/+30.1000+130.0660/+30.0893+130.0600/+30.0800+130.0518/+30.0651+130.0400/+30.0600+130.0367/+30.0400+130.0223/+30.0298+130.0200/+30.0200+130.0167/+30.0000+130.0003/+29.9996+130.0000/+29.9800+129.9838/+29.9757+129.9800/+29.9600+129.9649/+29.9542+129.9600/+29.9427+129.9400/+29.9400+129.9256/+29.9376+129.9200/+29.9200+129.9069/+29.9000+129.9034/+29.8958+129.9000/+29.9000+129.8931/+29.9200+129.8950/+29.9400+129.8958/+29.9600+129.8971/+29.9800+129.8989/+29.9948+129.9000/+30.0000+129.9004/+30.0200+129.9111/+30.0400+129.9180/+30.0463+129.9200/+30.0600+129.9242/+30.0800+129.9362/+30.0906+129.9400/+30.1000+129.9439/+30.1200+129.9541/+30.1273+129.9600/+30.1400+129.9640/+30.1600+129.9789/+30.1613+129.9800/+30.1800+129.9862/+30.2000+129.9953/+30.2068+130.0000/+30.2200+130.0058/+30.2317+130.0200/+30.2400+130.0297/+30.2515+130.0400/+30.2600+130.0428/+30.2800+130.0572/+30.2830+130.0600/+30.3000+130.0666/+30.3137+130.0800/+30.3200+130.0824/+30.3385+130.1000/+30.3400+130.1006/+30.3600+130.1136/+30.3664+130.1200/+30.3800+130.1238/+30.3962+130.1400/+30.4000+130.1411/+30.4190+130.1600/+30.4200+130.1602/+30.4400+130.1733/+30.4467+130.1800/ 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 +30.4576+130.2000/+30.4588+130.2200/+30.4400+130.2388/+30.4204+130.2200/+30.4200+130.2155/+30.4068+130.2000/+30.4200+130.1851/+30.4400+130.1824/+30.4576+130.2000/ 南西 3 鹿児島県屋久島町 4650500 2026-09-07T03:00:00+09:00 2026-09-07T06:00:00+09:00 降灰 70 +30.4578+130.1800/+30.4600+130.2000/+30.4600+130.2200/+30.4400+130.2399/+30.4200+130.2398/+30.4000+130.2200/+30.3800+130.2185/+30.3613+130.2000/+30.3600+130.1994/+30.3400+130.1926/+30.3270+130.1800/+30.3200+130.1778/+30.3000+130.1651/+30.2945+130.1600/+30.2800+130.1559/+30.2605+130.1400/+30.2600+130.1397/+30.2400+130.1331/+30.2229+130.1200/+30.2200+130.1183/+30.2000+130.1096/+30.1820+130.1000/+30.1800+130.0987/+30.1600+130.0895/+30.1443+130.0800/+30.1400+130.0767/+30.1200+130.0650/+30.1103+130.0600/+30.1000+130.0538/+30.0858+130.0400/+30.0800+130.0332/+30.0624+130.0200/+30.0600+130.0178/+30.0450+130.0000/+30.0400+129.9918/+30.0257+129.9800/+30.0200+129.9740/+30.0045+129.9600/+30.0000+129.9548/+29.9872+129.9400/+29.9800+129.9269/+29.9758+129.9200/+29.9614+129.9000/+29.9800+129.8845/+29.9890+129.8800/+30.0000+129.8759/+30.0109+129.8800/+30.0200+129.8829/+30.0400+129.8881/+30.0600+129.8968/+30.0642+129.9000/+30.0800+129.9094/+30.0979+129.9200/+30.1000+129.9210/+30.1200+129.9272/+30.1400+129.9347/+30.1543+129.9400/+30.1600+129.9420/+30.1800+129.9579/+30.1833+129.9600/+30.2000+129.9698/+30.2115+129.9800/+30.2200+129.9836/+30.2400+129.9952/+30.2445+130.0000/+30.2600+130.0200/+30.2800+130.0308/+30.2895+130.0400/+30.3000+130.0459/+30.3149+130.0600/+30.3200+130.0629/+30.3375+130.0800/+30.3400+130.0815/+30.3587+130.1000/+30.3600+130.1007/+30.3798+130.1200/+30.3800+130.1201/+30.4000+130.1352/+30.4048+130.1400/+30.4200+130.1510/+30.4290+130.1600/+30.4400+130.1622/+30.4578+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 +30.4578+130.2000/+30.4588+130.2200/+30.4400+130.2388/+30.4200+130.2209/+30.4191+130.2200/+30.4071+130.2000/+30.4200+130.1821/+30.4400+130.1805/+30.4578+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、６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。 　６日１２時から７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 　０６日１２時から１５時まで　南西　　　　　　８０ｋｍ　　６ｋｍ　　　　　 　０６日１５時から１８時まで　南西　　　　　　８０ｋｍ　　４ｋｍ　　　　　 　０６日１８時から２１時まで　南西　　　　　　８０ｋｍ　　４ｋｍ　　　　　 　０６日２１時から２４時まで　南西　　　　　　７０ｋｍ　　３ｋｍ　　　　　 　０７日００時から０３時まで　南西　　　　　　７０ｋｍ　　３ｋｍ　　　　　 　０７日０３時から０６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。 　強風のため、遠方まで小さな噴石が流されるおそれがあります。