2026-08-31T05:00:00Z 通常 気象庁本庁 気象庁 2026-08-31T14:00:00+09:00 2026-08-31T15:00:00+09:00 2026-09-01T09:00:00+09:00 508 発表 1 降灰予報 1.1_0 　現在、薩摩硫黄島は噴火警戒レベル２（火口周辺規制）です。薩摩硫黄島で噴火が発生した場合には、３１日２１時から２４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 薩摩硫黄島 508 降灰 70 鹿児島県三島村 4630300 小さな噴石の落下 75 鹿児島県三島村 4630300 降灰予報（定時） 06 薩摩硫黄島 508 +3047.58+13018.32+704/ 降灰 70 鹿児島県三島村 4630300 小さな噴石の落下 75 鹿児島県三島村 4630300 2026-08-31T15:00:00+09:00 2026-08-31T18:00:00+09:00 降灰 70 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西 50 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8113+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.7901+130.2800/+30.8000+130.2677/+30.8113+130.2800/ 北西 3 鹿児島県三島村 4630300 2026-08-31T18:00:00+09:00 2026-08-31T21:00:00+09:00 降灰 70 +31.0253+129.7400/+31.0243+129.7600/+31.0200+129.7778/+31.0195+129.7800/+31.0159+129.8000/+31.0083+129.8200/+31.0000+129.8385/+30.9996+129.8400/+30.9913+129.8600/+30.9854+129.8800/+30.9806+129.9000/+30.9800+129.9022/+30.9742+129.9200/+30.9600+129.9329/+30.9573+129.9400/+30.9526+129.9600/+30.9470+129.9800/+30.9400+129.9940/+30.9379+130.0000/+30.9324+130.0200/+30.9200+130.0317/+30.9150+130.0400/+30.9078+130.0600/+30.9000+130.0691/+30.8978+130.0800/+30.8930+130.1000/+30.8800+130.1176/+30.8797+130.1200/+30.8780+130.1400/+30.8727+130.1600/+30.8600+130.1747/+30.8596+130.1800/+30.8589+130.2000/+30.8550+130.2200/+30.8400+130.2356/+30.8399+130.2400/+30.8398+130.2600/+30.8392+130.2800/+30.8200+130.2996/+30.8200+130.3000/+30.8081+130.3200/+30.8000+130.3281/+30.7864+130.3200/+30.7800+130.3199/+30.7602+130.3000/+30.7603+130.2800/+30.7705+130.2600/+30.7800+130.2505/+30.7801+130.2400/+30.7804+130.2200/+30.7815+130.2000/+30.7881+130.1800/+30.8000+130.1661/+30.8004+130.1600/+30.8015+130.1400/+30.8039+130.1200/+30.8112+130.1000/+30.8200+130.0878/+30.8211+130.0800/+30.8237+130.0600/+30.8288+130.0400/+30.8370+130.0200/+30.8400+130.0155/+30.8431+130.0000/+30.8451+129.9800/+30.8506+129.9600/+30.8600+129.9424/+30.8615+129.9400/+30.8732+129.9200/+30.8800+129.9021/+30.8807+129.9000/+30.8887+129.8800/+30.8954+129.8600/+30.9000+129.8504/+30.9070+129.8400/+30.9187+129.8200/+30.9200+129.8171/+30.9267+129.8000/+30.9374+129.7800/+30.9400+129.7762/+30.9582+129.7600/+30.9600+129.7580/+30.9751+129.7400/+30.9800+129.7333/+30.9899+129.7200/+31.0000+129.7066/+31.0174+129.7200/+31.0200+129.7244/+31.0253+129.7400/ 西 60 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8105+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.7895+130.2800/+30.8000+130.2666/+30.8105+130.2800/ 北西 3 鹿児島県三島村 4630300 2026-08-31T21:00:00+09:00 2026-09-01T00:00:00+09:00 降灰 70 +31.0703+129.7000/+31.0670+129.7200/+31.0649+129.7400/+31.0600+129.7594/+31.0598+129.7600/+31.0488+129.7800/+31.0426+129.8000/+31.0400+129.8059/+31.0358+129.8200/+31.0310+129.8400/+31.0219+129.8600/+31.0200+129.8630/+31.0107+129.8800/+31.0000+129.8946/+30.9980+129.9000/+30.9925+129.9200/+30.9877+129.9400/+30.9800+129.9513/+30.9732+129.9600/+30.9600+129.9739/+30.9581+129.9800/+30.9546+130.0000/+30.9492+130.0200/+30.9400+130.0349/+30.9361+130.0400/+30.9200+130.0551/+30.9190+130.0600/+30.9153+130.0800/+30.9000+130.0999/+30.9000+130.1000/+30.8978+130.1200/+30.8902+130.1400/+30.8800+130.1512/+30.8792+130.1600/+30.8768+130.1800/+30.8600+130.1982/+30.8598+130.2000/+30.8594+130.2200/+30.8553+130.2400/+30.8400+130.2553/+30.8399+130.2600/+30.8398+130.2800/+30.8324+130.3000/+30.8200+130.3124/+30.8029+130.3200/+30.8000+130.3229/+30.7954+130.3200/+30.7800+130.3198/+30.7604+130.3000/+30.7610+130.2800/+30.7800+130.2609/+30.7801+130.2600/+30.7802+130.2400/+30.7814+130.2200/+30.7960+130.2000/+30.8000+130.1958/+30.8007+130.1800/+30.8027+130.1600/+30.8118+130.1400/+30.8200+130.1303/+30.8212+130.1200/+30.8242+130.1000/+30.8340+130.0800/+30.8400+130.0718/+30.8421+130.0600/+30.8468+130.0400/+30.8580+130.0200/+30.8531+130.0000/+30.8600+129.9897/+30.8655+129.9800/+30.8723+129.9600/+30.8800+129.9457/+30.8828+129.9400/+30.8992+129.9200/+30.8963+129.9000/+30.9000+129.8936/+30.9137+129.8800/+30.9200+129.8716/+30.9249+129.8600/+30.9345+129.8400/+30.9400+129.8261/+30.9433+129.8200/+30.9600+129.8003/+30.9603+129.8000/+30.9700+129.7800/+30.9800+129.7637/+30.9827+129.7600/+30.9976+129.7400/+31.0000+129.7370/+31.0200+129.7240/+31.0235+129.7200/+31.0335+129.7000/+31.0400+129.6892/+31.0600+129.6809/+31.0703+129.7000/ 北西 60 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8170+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.7866+130.2800/+30.8000+130.2635/+30.8170+130.2800/ 北西 3 鹿児島県三島村 4630300 2026-09-01T00:00:00+09:00 2026-09-01T03:00:00+09:00 降灰 70 +31.1108+129.7000/+31.1061+129.7200/+31.1029+129.7400/+31.1000+129.7464/+31.0857+129.7600/+31.0800+129.7754/+31.0793+129.7800/+31.0777+129.8000/+31.0714+129.8200/+31.0643+129.8400/+31.0600+129.8491/+31.0546+129.8600/+31.0421+129.8800/+31.0400+129.8823/+31.0341+129.9000/+31.0282+129.9200/+31.0221+129.9400/+31.0200+129.9447/+31.0095+129.9600/+31.0000+129.9683/+30.9955+129.9800/+30.9885+130.0000/+30.9800+130.0157/+30.9780+130.0200/+30.9611+130.0400/+30.9600+130.0409/+30.9518+130.0600/+30.9400+130.0749/+30.9387+130.0800/+30.9323+130.1000/+30.9200+130.1148/+30.9186+130.1200/+30.9120+130.1400/+30.9000+130.1532/+30.8987+130.1600/+30.8917+130.1800/+30.8800+130.1921/+30.8791+130.2000/+30.8742+130.2200/+30.8600+130.2344/+30.8596+130.2400/+30.8564+130.2600/+30.8400+130.2764/+30.8399+130.2800/+30.8378+130.3000/+30.8200+130.3178/+30.8040+130.3200/+30.8000+130.3240/+30.7938+130.3200/+30.7800+130.3197/+30.7605+130.3000/+30.7618+130.2800/+30.7800+130.2618/+30.7801+130.2600/+30.7806+130.2400/+30.7898+130.2200/+30.8000+130.2097/+30.8006+130.2000/+30.8035+130.1800/+30.8200+130.1616/+30.8204+130.1600/+30.8230+130.1400/+30.8358+130.1200/+30.8400+130.1150/+30.8426+130.1000/+30.8510+130.0800/+30.8600+130.0686/+30.8626+130.0600/+30.8727+130.0400/+30.8800+130.0301/+30.8829+130.0200/+30.8830+130.0000/+30.9000+129.9843/+30.9022+129.9800/+30.9069+129.9600/+30.9165+129.9400/+30.9200+129.9351/+30.9272+129.9200/+30.9339+129.9000/+30.9400+129.8903/+30.9523+129.8800/+30.9600+129.8712/+30.9658+129.8600/+30.9774+129.8400/+30.9800+129.8296/+30.9842+129.8200/+31.0000+129.8051/+31.0078+129.8000/+31.0200+129.7841/+31.0230+129.7800/+31.0372+129.7600/+31.0400+129.7556/+31.0600+129.7407/+31.0646+129.7400/+31.0800+129.7354/+31.0890+129.7200/+31.0913+129.7000/+31.1000+129.6878/+31.1108+129.7000/ 北西 70 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8174+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.7863+130.2800/+30.8000+130.2618/+30.8174+130.2800/ 北西 3 鹿児島県三島村 4630300 2026-09-01T03:00:00+09:00 2026-09-01T06:00:00+09:00 降灰 70 +31.1064+129.7800/+31.1108+129.8000/+31.1003+129.8200/+31.1000+129.8204/+31.0874+129.8400/+31.0814+129.8600/+31.0800+129.8643/+31.0754+129.8800/+31.0683+129.9000/+31.0600+129.9143/+31.0580+129.9200/+31.0438+129.9400/+31.0400+129.9433/+31.0336+129.9600/+31.0200+129.9750/+31.0169+129.9800/+31.0096+130.0000/+31.0000+130.0152/+30.9980+130.0200/+30.9898+130.0400/+30.9800+130.0575/+30.9749+130.0600/+30.9600+130.0658/+30.9553+130.0800/+30.9400+130.0986/+30.9395+130.1000/+30.9325+130.1200/+30.9200+130.1332/+30.9186+130.1400/+30.9091+130.1600/+30.9000+130.1696/+30.8984+130.1800/+30.8800+130.1996/+30.8799+130.2000/+30.8784+130.2200/+30.8600+130.2388/+30.8598+130.2400/+30.8587+130.2600/+30.8400+130.2787/+30.8399+130.2800/+30.8390+130.3000/+30.8200+130.3190/+30.8126+130.3200/+30.8000+130.3326/+30.7815+130.3200/+30.7800+130.3199/+30.7605+130.3000/+30.7640+130.2800/+30.7800+130.2640/+30.7801+130.2600/+30.7857+130.2400/+30.8000+130.2257/+30.8005+130.2200/+30.8093+130.2000/+30.8200+130.1892/+30.8211+130.1800/+30.8298+130.1600/+30.8400+130.1495/+30.8419+130.1400/+30.8547+130.1200/+30.8600+130.1144/+30.8634+130.1000/+30.8768+130.0800/+30.8800+130.0765/+30.8853+130.0600/+30.9000+130.0414/+30.9006+130.0400/+30.9041+130.0200/+30.9079+130.0000/+30.9200+129.9837/+30.9233+129.9800/+30.9323+129.9600/+30.9400+129.9490/+30.9466+129.9400/+30.9600+129.9244/+30.9630+129.9200/+30.9708+129.9000/+30.9800+129.8859/+30.9855+129.8800/+31.0000+129.8624/+31.0027+129.8600/+31.0200+129.8417/+31.0218+129.8400/+31.0325+129.8200/+31.0400+129.8069/+31.0475+129.8000/+31.0600+129.7898/+31.0800+129.7818/+31.0830+129.7800/+31.1000+129.7635/+31.1064+129.7800/ 北西 60 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8155+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.7885+130.2800/+30.8000+130.2664/+30.8155+130.2800/ 北西 3 鹿児島県三島村 4630300 2026-09-01T06:00:00+09:00 2026-09-01T09:00:00+09:00 降灰 70 +31.0808+129.8400/+31.0800+129.8446/+31.0778+129.8600/+31.0715+129.8800/+31.0633+129.9000/+31.0600+129.9043/+31.0517+129.9200/+31.0400+129.9342/+31.0372+129.9400/+31.0294+129.9600/+31.0200+129.9695/+31.0129+129.9800/+31.0038+130.0000/+31.0000+130.0059/+30.9937+130.0200/+30.9813+130.0400/+30.9800+130.0420/+30.9600+130.0572/+30.9585+130.0600/+30.9489+130.0800/+30.9400+130.0903/+30.9369+130.1000/+30.9201+130.1200/+30.9200+130.1201/+30.9156+130.1400/+30.9000+130.1572/+30.8993+130.1600/+30.8944+130.1800/+30.8800+130.1952/+30.8793+130.2000/+30.8734+130.2200/+30.8600+130.2335/+30.8596+130.2400/+30.8546+130.2600/+30.8400+130.2746/+30.8399+130.2800/+30.8384+130.3000/+30.8200+130.3184/+30.8122+130.3200/+30.8000+130.3322/+30.7822+130.3200/+30.7800+130.3199/+30.7604+130.3000/+30.7628+130.2800/+30.7800+130.2628/+30.7801+130.2600/+30.7811+130.2400/+30.8000+130.2209/+30.8002+130.2200/+30.8014+130.2000/+30.8165+130.1800/+30.8200+130.1764/+30.8216+130.1600/+30.8306+130.1400/+30.8400+130.1298/+30.8419+130.1200/+30.8481+130.1000/+30.8600+130.0866/+30.8624+130.0800/+30.8718+130.0600/+30.8800+130.0499/+30.8836+130.0400/+30.8946+130.0200/+30.9000+130.0048/+30.9008+130.0000/+30.9093+129.9800/+30.9197+129.9600/+30.9200+129.9596/+30.9328+129.9400/+30.9400+129.9264/+30.9442+129.9200/+30.9600+129.9002/+30.9601+129.9000/+30.9759+129.8800/+30.9800+129.8719/+30.9884+129.8600/+31.0000+129.8494/+31.0137+129.8400/+31.0200+129.8318/+31.0323+129.8200/+31.0400+129.8119/+31.0600+129.8020/+31.0787+129.8200/+31.0800+129.8291/+31.0808+129.8400/ 北西 50 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8139+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.7897+130.2800/+30.8000+130.2674/+30.8139+130.2800/ 北西 3 鹿児島県三島村 4630300 　現在、薩摩硫黄島は噴火警戒レベル２（火口周辺規制）です。薩摩硫黄島で噴火が発生した場合には、３１日２１時から２４時までは火口から北西方向に降灰が予想されます。 　３１日１５時から１日９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 　３１日１５時から１８時まで　西　　　　　　　５０ｋｍ　　３ｋｍ　　　　　 　３１日１８時から２１時まで　西　　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　３１日２１時から２４時まで　北西　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　０１日００時から０３時まで　北西　　　　　　７０ｋｍ　　３ｋｍ　　　　　 　０１日０３時から０６時まで　北西　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　０１日０６時から０９時まで　北西　　　　　　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：三島村 　 　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。