2026-10-04T17:00:00Z 通常 気象庁本庁 気象庁 2026-10-05T02:00:00+09:00 2026-10-05T03:00:00+09:00 2026-10-05T21:00:00+09:00 511 発表 1 降灰予報 1.1_0 　現在、諏訪之瀬島は噴火警戒レベル２（火口周辺規制）です。諏訪之瀬島で噴火が発生した場合には、５日０９時から１２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 諏訪之瀬島 511 降灰 70 鹿児島県十島村 4630400 小さな噴石の落下 75 鹿児島県十島村 4630400 降灰予報（定時） 06 諏訪之瀬島 511 +2938.30+12942.83+796/ 降灰 70 鹿児島県十島村 4630400 小さな噴石の落下 75 鹿児島県十島村 4630400 2026-10-05T03:00:00+09:00 2026-10-05T06:00:00+09:00 降灰 70 +29.6599+129.7000/+29.6600+129.7200/+29.6400+129.7400/+29.6396+129.7400/+29.6200+129.7592/+29.6000+129.7598/+29.5954+129.7600/+29.5800+129.7744/+29.5600+129.7788/+29.5513+129.7800/+29.5400+129.7899/+29.5200+129.7978/+29.5121+129.8000/+29.5000+129.8097/+29.4800+129.8171/+29.4698+129.8200/+29.4600+129.8267/+29.4400+129.8369/+29.4200+129.8392/+29.4167+129.8400/+29.4000+129.8516/+29.3868+129.8600/+29.3800+129.8649/+29.3600+129.8734/+29.3407+129.8800/+29.3400+129.8803/+29.3200+129.8886/+29.3000+129.8948/+29.2845+129.9000/+29.2800+129.9017/+29.2659+129.9000/+29.2600+129.8990/+29.2400+129.8931/+29.2222+129.8800/+29.2346+129.8600/+29.2400+129.8460/+29.2412+129.8400/+29.2578+129.8200/+29.2600+129.8174/+29.2743+129.8000/+29.2800+129.7951/+29.2956+129.7800/+29.3000+129.7767/+29.3200+129.7624/+29.3240+129.7600/+29.3400+129.7528/+29.3600+129.7449/+29.3800+129.7427/+29.3867+129.7400/+29.4000+129.7323/+29.4200+129.7251/+29.4400+129.7222/+29.4600+129.7201/+29.4606+129.7200/+29.4800+129.7098/+29.5000+129.7041/+29.5200+129.7018/+29.5400+129.7007/+29.5600+129.7003/+29.5750+129.7000/+29.5800+129.6957/+29.6000+129.6812/+29.6200+129.6801/+29.6400+129.6801/+29.6599+129.7000/ 南 50 鹿児島県十島村 4630400 小さな噴石の落下 75 1 +29.6588+129.7200/+29.6400+129.7388/+29.6200+129.7318/+29.6074+129.7200/+29.6200+129.7093/+29.6400+129.7012/+29.6588+129.7200/ 南東 2 鹿児島県十島村 4630400 2026-10-05T06:00:00+09:00 2026-10-05T09:00:00+09:00 降灰 70 +29.6599+129.7000/+29.6599+129.7200/+29.6400+129.7399/+29.6200+129.7400/+29.6108+129.7400/+29.6000+129.7505/+29.5800+129.7574/+29.5600+129.7586/+29.5400+129.7589/+29.5200+129.7591/+29.5000+129.7595/+29.4807+129.7600/+29.4800+129.7604/+29.4600+129.7698/+29.4400+129.7727/+29.4200+129.7755/+29.4000+129.7775/+29.3800+129.7788/+29.3759+129.7800/+29.3600+129.7913/+29.3400+129.7922/+29.3200+129.7934/+29.3000+129.7948/+29.2800+129.7979/+29.2600+129.7995/+29.2547+129.8000/+29.2400+129.8034/+29.2200+129.8022/+29.2000+129.8010/+29.1800+129.8024/+29.1600+129.8016/+29.1450+129.8000/+29.1400+129.7960/+29.1325+129.7800/+29.1280+129.7600/+29.1400+129.7491/+29.1479+129.7400/+29.1600+129.7349/+29.1800+129.7268/+29.2000+129.7227/+29.2076+129.7200/+29.2200+129.7153/+29.2400+129.7097/+29.2600+129.7021/+29.2676+129.7000/+29.2800+129.6972/+29.2993+129.7000/+29.3000+129.7001/+29.3005+129.7000/+29.3200+129.6966/+29.3400+129.6935/+29.3600+129.6910/+29.3752+129.7000/+29.3800+129.7009/+29.4000+129.7005/+29.4145+129.7000/+29.4200+129.6988/+29.4400+129.6932/+29.4600+129.6910/+29.4800+129.6877/+29.5000+129.6847/+29.5200+129.6831/+29.5400+129.6819/+29.5600+129.6810/+29.5800+129.6804/+29.6000+129.6802/+29.6200+129.6801/+29.6400+129.6801/+29.6599+129.7000/ 南 60 鹿児島県十島村 4630400 小さな噴石の落下 75 1 +29.6588+129.7200/+29.6400+129.7388/+29.6200+129.7326/+29.6051+129.7200/+29.6200+129.7074/+29.6400+129.7012/+29.6588+129.7200/ 南東 2 鹿児島県十島村 4630400 2026-10-05T09:00:00+09:00 2026-10-05T12:00:00+09:00 降灰 70 +29.6598+129.7000/+29.6599+129.7200/+29.6400+129.7399/+29.6200+129.7400/+29.6045+129.7400/+29.6000+129.7440/+29.5800+129.7567/+29.5600+129.7584/+29.5400+129.7589/+29.5200+129.7591/+29.5000+129.7594/+29.4853+129.7600/+29.4800+129.7634/+29.4600+129.7712/+29.4400+129.7743/+29.4200+129.7756/+29.4000+129.7782/+29.3800+129.7792/+29.3773+129.7800/+29.3600+129.7908/+29.3400+129.7919/+29.3200+129.7935/+29.3000+129.7945/+29.2800+129.7968/+29.2600+129.7986/+29.2474+129.8000/+29.2400+129.8020/+29.2200+129.8012/+29.2000+129.8004/+29.1800+129.8017/+29.1600+129.8002/+29.1563+129.8000/+29.1400+129.7966/+29.1200+129.7879/+29.1133+129.7800/+29.1067+129.7600/+29.1200+129.7497/+29.1323+129.7400/+29.1400+129.7377/+29.1600+129.7303/+29.1800+129.7233/+29.2000+129.7215/+29.2046+129.7200/+29.2200+129.7138/+29.2400+129.7082/+29.2600+129.7032/+29.2772+129.7000/+29.2800+129.6996/+29.2821+129.7000/+29.3000+129.7022/+29.3177+129.7000/+29.3200+129.6995/+29.3400+129.6954/+29.3600+129.6907/+29.3745+129.7000/+29.3800+129.7010/+29.4000+129.7008/+29.4200+129.7004/+29.4400+129.7002/+29.4451+129.7000/+29.4600+129.6947/+29.4800+129.6898/+29.5000+129.6855/+29.5200+129.6834/+29.5400+129.6819/+29.5600+129.6810/+29.5800+129.6804/+29.6000+129.6801/+29.6200+129.6801/+29.6400+129.6802/+29.6598+129.7000/ 南 60 鹿児島県十島村 4630400 小さな噴石の落下 75 1 +29.6588+129.7200/+29.6400+129.7388/+29.6200+129.7341/+29.6034+129.7200/+29.6200+129.7059/+29.6400+129.7012/+29.6588+129.7200/ 南東 2 鹿児島県十島村 4630400 2026-10-05T12:00:00+09:00 2026-10-05T15:00:00+09:00 降灰 70 +29.6598+129.7000/+29.6599+129.7200/+29.6400+129.7399/+29.6200+129.7400/+29.6191+129.7400/+29.6000+129.7584/+29.5800+129.7595/+29.5600+129.7596/+29.5400+129.7597/+29.5223+129.7600/+29.5200+129.7621/+29.5000+129.7744/+29.4800+129.7776/+29.4600+129.7785/+29.4400+129.7796/+29.4350+129.7800/+29.4200+129.7885/+29.4000+129.7932/+29.3800+129.7980/+29.3600+129.7999/+29.3592+129.8000/+29.3400+129.8084/+29.3200+129.8142/+29.3000+129.8173/+29.2921+129.8200/+29.2800+129.8248/+29.2600+129.8250/+29.2400+129.8252/+29.2200+129.8262/+29.2000+129.8298/+29.1800+129.8302/+29.1600+129.8307/+29.1400+129.8298/+29.1200+129.8267/+29.1000+129.8213/+29.0964+129.8200/+29.0800+129.8126/+29.0622+129.8000/+29.0800+129.7904/+29.1000+129.7809/+29.1015+129.7800/+29.1200+129.7704/+29.1400+129.7615/+29.1432+129.7600/+29.1600+129.7524/+29.1800+129.7432/+29.1958+129.7400/+29.2000+129.7396/+29.2200+129.7337/+29.2400+129.7297/+29.2600+129.7257/+29.2800+129.7230/+29.2961+129.7200/+29.3000+129.7187/+29.3200+129.7143/+29.3400+129.7105/+29.3600+129.7067/+29.3800+129.7149/+29.4000+129.7112/+29.4200+129.7072/+29.4400+129.7043/+29.4600+129.7027/+29.4800+129.7015/+29.5000+129.7008/+29.5200+129.7004/+29.5400+129.7001/+29.5473+129.7000/+29.5600+129.6912/+29.5800+129.6825/+29.6000+129.6804/+29.6200+129.6801/+29.6400+129.6802/+29.6598+129.7000/ 南 60 鹿児島県十島村 4630400 小さな噴石の落下 75 1 +29.6588+129.7200/+29.6400+129.7388/+29.6200+129.7343/+29.6026+129.7200/+29.6200+129.7057/+29.6400+129.7012/+29.6588+129.7200/ 南東 2 鹿児島県十島村 4630400 2026-10-05T15:00:00+09:00 2026-10-05T18:00:00+09:00 降灰 70 +29.6597+129.7000/+29.6599+129.7200/+29.6400+129.7399/+29.6383+129.7400/+29.6200+129.7583/+29.6000+129.7598/+29.5800+129.7599/+29.5622+129.7600/+29.5600+129.7622/+29.5400+129.7780/+29.5200+129.7792/+29.5000+129.7797/+29.4958+129.7800/+29.4800+129.7939/+29.4600+129.7973/+29.4400+129.7990/+29.4292+129.8000/+29.4200+129.8074/+29.4000+129.8149/+29.3919+129.8200/+29.3800+129.8323/+29.3600+129.8351/+29.3400+129.8378/+29.3251+129.8400/+29.3200+129.8420/+29.3000+129.8521/+29.2800+129.8567/+29.2714+129.8600/+29.2600+129.8633/+29.2400+129.8674/+29.2200+129.8691/+29.2000+129.8794/+29.1938+129.8800/+29.1800+129.8814/+29.1600+129.8835/+29.1400+129.8846/+29.1200+129.8847/+29.1000+129.8847/+29.0800+129.8838/+29.0600+129.8823/+29.0451+129.8800/+29.0400+129.8786/+29.0222+129.8600/+29.0394+129.8400/+29.0400+129.8397/+29.0600+129.8318/+29.0800+129.8251/+29.0979+129.8200/+29.1000+129.8195/+29.1200+129.8105/+29.1400+129.8014/+29.1422+129.8000/+29.1600+129.7883/+29.1758+129.7800/+29.1800+129.7784/+29.2000+129.7777/+29.2200+129.7721/+29.2400+129.7687/+29.2600+129.7655/+29.2800+129.7629/+29.2878+129.7600/+29.3000+129.7535/+29.3200+129.7478/+29.3400+129.7446/+29.3600+129.7423/+29.3800+129.7428/+29.4000+129.7408/+29.4063+129.7400/+29.4200+129.7310/+29.4400+129.7249/+29.4600+129.7220/+29.4800+129.7207/+29.4985+129.7200/+29.5000+129.7188/+29.5200+129.7038/+29.5400+129.7008/+29.5600+129.7002/+29.5800+129.7001/+29.5846+129.7000/+29.6000+129.6846/+29.6200+129.6802/+29.6400+129.6803/+29.6597+129.7000/ 南 70 鹿児島県十島村 4630400 小さな噴石の落下 75 1 +29.6588+129.7200/+29.6400+129.7388/+29.6200+129.7357/+29.6017+129.7200/+29.6200+129.7043/+29.6400+129.7012/+29.6588+129.7200/ 南東 2 鹿児島県十島村 4630400 2026-10-05T18:00:00+09:00 2026-10-05T21:00:00+09:00 降灰 70 +29.6596+129.7000/+29.6599+129.7200/+29.6400+129.7399/+29.6396+129.7400/+29.6200+129.7596/+29.6000+129.7599/+29.5800+129.7600/+29.5799+129.7600/+29.5600+129.7791/+29.5400+129.7797/+29.5280+129.7800/+29.5200+129.7879/+29.5000+129.7985/+29.4800+129.7995/+29.4749+129.8000/+29.4600+129.8136/+29.4400+129.8180/+29.4200+129.8198/+29.4183+129.8200/+29.4000+129.8340/+29.3930+129.8400/+29.3800+129.8530/+29.3600+129.8562/+29.3400+129.8582/+29.3296+129.8600/+29.3200+129.8698/+29.3000+129.8782/+29.2903+129.8800/+29.2800+129.8886/+29.2607+129.9000/+29.2600+129.9002/+29.2400+129.9058/+29.2200+129.9167/+29.2135+129.9200/+29.2000+129.9251/+29.1800+129.9297/+29.1600+129.9335/+29.1400+129.9363/+29.1200+129.9392/+29.1157+129.9400/+29.1000+129.9449/+29.0800+129.9503/+29.0600+129.9592/+29.0576+129.9600/+29.0400+129.9634/+29.0200+129.9648/+29.0000+129.9665/+28.9800+129.9654/+28.9600+129.9636/+28.9517+129.9600/+28.9600+129.9494/+28.9675+129.9400/+28.9800+129.9367/+29.0000+129.9309/+29.0200+129.9204/+29.0205+129.9200/+29.0349+129.9000/+29.0400+129.8964/+29.0600+129.8845/+29.0690+129.8800/+29.0800+129.8755/+29.1000+129.8691/+29.1200+129.8616/+29.1239+129.8600/+29.1400+129.8510/+29.1546+129.8400/+29.1600+129.8361/+29.1800+129.8239/+29.1910+129.8200/+29.2000+129.8177/+29.2200+129.8124/+29.2400+129.8080/+29.2600+129.8032/+29.2783+129.8000/+29.2800+129.7986/+29.3000+129.7915/+29.3180+129.7800/+29.3200+129.7788/+29.3400+129.7701/+29.3600+129.7644/+29.3800+129.7689/+29.4000+129.7624/+29.4200+129.7606/+29.4234+129.7600/+29.4400+129.7459/+29.4600+129.7415/+29.4800+129.7403/+29.4826+129.7400/+29.5000+129.7238/+29.5200+129.7206/+29.5400+129.7202/+29.5413+129.7200/+29.5600+129.7016/+29.5800+129.7002/+29.6000+129.7000/+29.6005+129.7000/+29.6200+129.6805/+29.6400+129.6804/+29.6596+129.7000/ 南 80 鹿児島県十島村 4630400 小さな噴石の落下 75 1 +29.6588+129.7200/+29.6400+129.7388/+29.6200+129.7357/+29.6008+129.7200/+29.6200+129.7043/+29.6400+129.7012/+29.6588+129.7200/ 南東 2 鹿児島県十島村 4630400 　現在、諏訪之瀬島は噴火警戒レベル２（火口周辺規制）です。諏訪之瀬島で噴火が発生した場合には、５日０９時から１２時までは火口から南方向に降灰が予想されます。 　５日３時から５日２１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 　０５日０３時から０６時まで　南　　　　　　　５０ｋｍ　　２ｋｍ　　　　　 　０５日０６時から０９時まで　南　　　　　　　６０ｋｍ　　２ｋｍ　　　　　 　０５日０９時から１２時まで　南　　　　　　　６０ｋｍ　　２ｋｍ　　　　　 　０５日１２時から１５時まで　南　　　　　　　６０ｋｍ　　２ｋｍ　　　　　 　０５日１５時から１８時まで　南　　　　　　　７０ｋｍ　　２ｋｍ　　　　　 　０５日１８時から２１時まで　南　　　　　　　８０ｋｍ　　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：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。