2026-08-23T11:00:00Z 通常 気象庁本庁 気象庁 2026-08-23T20:00:00+09:00 2026-08-23T21:00:00+09:00 2026-08-24T15:00:00+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、２３日２１時から２４時までは火口から西方向、２４日０９時から１２時までは火口から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 2026-08-23T21:00:00+09:00 2026-08-24T00:00:00+09:00 降灰 70 +31.0029+129.7200/+31.0048+129.7400/+31.0019+129.7600/+31.0000+129.7651/+30.9902+129.7800/+30.9884+129.8000/+30.9838+129.8200/+30.9831+129.8400/+30.9800+129.8497/+30.9758+129.8600/+30.9630+129.8800/+30.9600+129.8843/+30.9554+129.9000/+30.9519+129.9200/+30.9456+129.9400/+30.9400+129.9536/+30.9382+129.9600/+30.9320+129.9800/+30.9273+130.0000/+30.9200+130.0194/+30.9197+130.0200/+30.9000+130.0349/+30.8990+130.0400/+30.8963+130.0600/+30.8908+130.0800/+30.8800+130.0944/+30.8794+130.1000/+30.8780+130.1200/+30.8753+130.1400/+30.8600+130.1589/+30.8599+130.1600/+30.8593+130.1800/+30.8586+130.2000/+30.8520+130.2200/+30.8400+130.2322/+30.8399+130.2400/+30.8398+130.2600/+30.8395+130.2800/+30.8200+130.2996/+30.8200+130.3000/+30.8099+130.3200/+30.8000+130.3299/+30.7828+130.3200/+30.7800+130.3200/+30.7602+130.3000/+30.7604+130.2800/+30.7800+130.2602/+30.7800+130.2600/+30.7801+130.2400/+30.7804+130.2200/+30.7819+130.2000/+30.7901+130.1800/+30.8000+130.1676/+30.8004+130.1600/+30.8014+130.1400/+30.8041+130.1200/+30.8099+130.1000/+30.8200+130.0843/+30.8205+130.0800/+30.8227+130.0600/+30.8274+130.0400/+30.8357+130.0200/+30.8400+130.0127/+30.8420+130.0000/+30.8440+129.9800/+30.8478+129.9600/+30.8550+129.9400/+30.8600+129.9305/+30.8650+129.9200/+30.8747+129.9000/+30.8800+129.8922/+30.8872+129.8800/+30.8916+129.8600/+30.8969+129.8400/+30.9000+129.8313/+30.9055+129.8200/+30.9200+129.8021/+30.9221+129.8000/+30.9324+129.7800/+30.9400+129.7689/+30.9553+129.7600/+30.9600+129.7561/+30.9800+129.7512/+30.9876+129.7400/+30.9960+129.7200/+31.0000+129.7002/+31.0029+129.7200/ 西 60 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8110+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.7890+130.2800/+30.8000+130.2662/+30.8110+130.2800/ 北西 3 鹿児島県三島村 4630300 2026-08-24T00:00:00+09:00 2026-08-24T03:00:00+09:00 降灰 70 +30.9646+129.8000/+30.9628+129.8200/+30.9600+129.8353/+30.9592+129.8400/+30.9533+129.8600/+30.9501+129.8800/+30.9457+129.9000/+30.9418+129.9200/+30.9400+129.9228/+30.9311+129.9400/+30.9256+129.9600/+30.9200+129.9755/+30.9190+129.9800/+30.9148+130.0000/+30.9000+130.0151/+30.8987+130.0200/+30.8952+130.0400/+30.8888+130.0600/+30.8800+130.0743/+30.8793+130.0800/+30.8762+130.1000/+30.8718+130.1200/+30.8600+130.1351/+30.8595+130.1400/+30.8589+130.1600/+30.8577+130.1800/+30.8496+130.2000/+30.8400+130.2103/+30.8398+130.2200/+30.8398+130.2400/+30.8396+130.2600/+30.8369+130.2800/+30.8200+130.2970/+30.8200+130.3000/+30.8135+130.3200/+30.8000+130.3335/+30.7800+130.3258/+30.7742+130.3200/+30.7601+130.3000/+30.7602+130.2800/+30.7613+130.2600/+30.7754+130.2400/+30.7800+130.2347/+30.7802+130.2200/+30.7805+130.2000/+30.7814+130.1800/+30.7839+130.1600/+30.7909+130.1400/+30.8000+130.1253/+30.8004+130.1200/+30.8018+130.1000/+30.8047+130.0800/+30.8119+130.0600/+30.8200+130.0435/+30.8204+130.0400/+30.8222+130.0200/+30.8283+130.0000/+30.8299+129.9800/+30.8400+129.9622/+30.8405+129.9600/+30.8454+129.9400/+30.8530+129.9200/+30.8600+129.9034/+30.8618+129.9000/+30.8683+129.8800/+30.8800+129.8601/+30.8801+129.8600/+30.8923+129.8400/+30.8992+129.8200/+30.9000+129.8177/+30.9200+129.8002/+30.9206+129.8000/+30.9361+129.7800/+30.9400+129.7741/+30.9583+129.7800/+30.9600+129.7809/+30.9646+129.8000/ 西 50 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8090+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.7910+130.2800/+30.8000+130.2688/+30.8090+130.2800/ 北西 3 鹿児島県三島村 4630300 2026-08-24T03:00:00+09:00 2026-08-24T06:00:00+09:00 降灰 70 +30.8808+129.8600/+30.8817+129.8800/+30.8800+129.8992/+30.8800+129.9000/+30.8798+129.9200/+30.8786+129.9400/+30.8768+129.9600/+30.8746+129.9800/+30.8728+130.0000/+30.8600+130.0158/+30.8587+130.0200/+30.8568+130.0400/+30.8546+130.0600/+30.8522+130.0800/+30.8465+130.1000/+30.8411+130.1200/+30.8400+130.1215/+30.8393+130.1400/+30.8390+130.1600/+30.8389+130.1800/+30.8387+130.2000/+30.8383+130.2200/+30.8370+130.2400/+30.8254+130.2600/+30.8200+130.2655/+30.8200+130.2800/+30.8200+130.3000/+30.8138+130.3200/+30.8000+130.3338/+30.7800+130.3274/+30.7726+130.3200/+30.7601+130.3000/+30.7601+130.2800/+30.7602+130.2600/+30.7606+130.2400/+30.7613+130.2200/+30.7626+130.2000/+30.7644+130.1800/+30.7669+130.1600/+30.7687+130.1400/+30.7726+130.1200/+30.7800+130.1029/+30.7802+130.1000/+30.7805+130.0800/+30.7810+130.0600/+30.7824+130.0400/+30.7838+130.0200/+30.7858+130.0000/+30.7850+129.9800/+30.7878+129.9600/+30.7913+129.9400/+30.7959+129.9200/+30.8000+129.9007/+30.8002+129.9000/+30.8076+129.8800/+30.8146+129.8600/+30.8200+129.8486/+30.8251+129.8400/+30.8317+129.8200/+30.8400+129.8025/+30.8600+129.8035/+30.8784+129.8200/+30.8795+129.8400/+30.8800+129.8442/+30.8808+129.8600/ 西 50 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8106+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.7890+130.2800/+30.8000+130.2670/+30.8106+130.2800/ 北西 3 鹿児島県三島村 4630300 2026-08-24T06:00:00+09:00 2026-08-24T09:00:00+09:00 降灰 70 +30.8001+129.9600/+30.8048+129.9800/+30.8000+129.9855/+30.7965+130.0000/+30.7977+130.0200/+30.7990+130.0400/+30.7995+130.0600/+30.8000+130.0667/+30.8062+130.0800/+30.8094+130.1000/+30.8127+130.1200/+30.8158+130.1400/+30.8178+130.1600/+30.8188+130.1800/+30.8194+130.2000/+30.8197+130.2200/+30.8198+130.2400/+30.8199+130.2600/+30.8200+130.2800/+30.8199+130.3000/+30.8112+130.3200/+30.8000+130.3312/+30.7800+130.3242/+30.7758+130.3200/+30.7601+130.3000/+30.7601+130.2800/+30.7601+130.2600/+30.7601+130.2400/+30.7601+130.2200/+30.7600+130.2077/+30.7535+130.2000/+30.7451+130.1800/+30.7427+130.1600/+30.7422+130.1400/+30.7416+130.1200/+30.7411+130.1000/+30.7404+130.0800/+30.7400+130.0715/+30.7346+130.0600/+30.7290+130.0400/+30.7265+130.0200/+30.7233+130.0000/+30.7214+129.9800/+30.7203+129.9600/+30.7200+129.9547/+30.7164+129.9400/+30.7132+129.9200/+30.7065+129.9000/+30.7038+129.8800/+30.7042+129.8600/+30.7045+129.8400/+30.7057+129.8200/+30.7070+129.8000/+30.7200+129.7803/+30.7204+129.7800/+30.7274+129.7600/+30.7371+129.7400/+30.7400+129.7344/+30.7494+129.7400/+30.7600+129.7451/+30.7650+129.7600/+30.7714+129.7800/+30.7788+129.8000/+30.7800+129.8098/+30.7811+129.8200/+30.7829+129.8400/+30.7865+129.8600/+30.7891+129.8800/+30.7888+129.9000/+30.7920+129.9200/+30.7966+129.9400/+30.8000+129.9598/+30.8001+129.9600/ 西 50 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8125+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3117/+30.7683+130.3000/+30.7688+130.2800/+30.7800+130.2652/+30.8000+130.2650/+30.8125+130.2800/ 西 3 鹿児島県三島村 4630300 2026-08-24T09:00:00+09:00 2026-08-24T12:00:00+09:00 降灰 70 +30.8213+129.8800/+30.8200+129.8865/+30.8180+129.9000/+30.8198+129.9200/+30.8200+129.9220/+30.8226+129.9400/+30.8256+129.9600/+30.8284+129.9800/+30.8200+129.9909/+30.8174+130.0000/+30.8174+130.0200/+30.8174+130.0400/+30.8176+130.0600/+30.8181+130.0800/+30.8183+130.1000/+30.8185+130.1200/+30.8189+130.1400/+30.8191+130.1600/+30.8194+130.1800/+30.8196+130.2000/+30.8198+130.2200/+30.8199+130.2400/+30.8199+130.2600/+30.8200+130.2800/+30.8199+130.3000/+30.8033+130.3200/+30.8000+130.3233/+30.7925+130.3200/+30.7800+130.3200/+30.7601+130.3000/+30.7601+130.2800/+30.7601+130.2600/+30.7601+130.2400/+30.7601+130.2200/+30.7601+130.2000/+30.7600+130.1901/+30.7536+130.1800/+30.7474+130.1600/+30.7452+130.1400/+30.7445+130.1200/+30.7437+130.1000/+30.7430+130.0800/+30.7429+130.0600/+30.7425+130.0400/+30.7421+130.0200/+30.7411+130.0000/+30.7400+129.9959/+30.7289+129.9800/+30.7295+129.9600/+30.7303+129.9400/+30.7315+129.9200/+30.7319+129.9000/+30.7305+129.8800/+30.7310+129.8600/+30.7315+129.8400/+30.7325+129.8200/+30.7338+129.8000/+30.7335+129.7800/+30.7384+129.7600/+30.7400+129.7506/+30.7444+129.7400/+30.7478+129.7200/+30.7524+129.7000/+30.7600+129.6890/+30.7696+129.7000/+30.7800+129.7144/+30.7859+129.7200/+30.8000+129.7294/+30.8031+129.7400/+30.8081+129.7600/+30.8121+129.7800/+30.8134+129.8000/+30.8143+129.8200/+30.8151+129.8400/+30.8186+129.8600/+30.8200+129.8695/+30.8213+129.8800/ 西 60 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8137+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3040/+30.7760+130.3000/+30.7733+130.2800/+30.7800+130.2701/+30.8000+130.2629/+30.8137+130.2800/ 西 3 鹿児島県三島村 4630300 2026-08-24T12:00:00+09:00 2026-08-24T15:00:00+09:00 降灰 70 +30.8225+129.6400/+30.8254+129.6600/+30.8275+129.6800/+30.8293+129.7000/+30.8317+129.7200/+30.8337+129.7400/+30.8346+129.7600/+30.8348+129.7800/+30.8308+129.8000/+30.8309+129.8200/+30.8309+129.8400/+30.8313+129.8600/+30.8316+129.8800/+30.8287+129.9000/+30.8286+129.9200/+30.8296+129.9400/+30.8301+129.9600/+30.8304+129.9800/+30.8200+129.9915/+30.8177+130.0000/+30.8176+130.0200/+30.8179+130.0400/+30.8182+130.0600/+30.8186+130.0800/+30.8189+130.1000/+30.8192+130.1200/+30.8194+130.1400/+30.8195+130.1600/+30.8197+130.1800/+30.8198+130.2000/+30.8198+130.2200/+30.8199+130.2400/+30.8199+130.2600/+30.8200+130.2800/+30.8199+130.3000/+30.8000+130.3200/+30.7800+130.3199/+30.7602+130.3000/+30.7601+130.2800/+30.7601+130.2600/+30.7601+130.2400/+30.7602+130.2200/+30.7602+130.2000/+30.7602+130.1800/+30.7601+130.1600/+30.7600+130.1520/+30.7568+130.1400/+30.7521+130.1200/+30.7482+130.1000/+30.7484+130.0800/+30.7473+130.0600/+30.7476+130.0400/+30.7473+130.0200/+30.7459+130.0000/+30.7404+129.9800/+30.7410+129.9600/+30.7413+129.9400/+30.7410+129.9200/+30.7428+129.9000/+30.7400+129.8897/+30.7357+129.8800/+30.7377+129.8600/+30.7400+129.8421/+30.7403+129.8400/+30.7422+129.8200/+30.7444+129.8000/+30.7478+129.7800/+30.7508+129.7600/+30.7548+129.7400/+30.7600+129.7210/+30.7602+129.7200/+30.7651+129.7000/+30.7674+129.6800/+30.7701+129.6600/+30.7740+129.6400/+30.7797+129.6200/+30.7800+129.6189/+30.7867+129.6000/+30.7893+129.5800/+30.7926+129.5600/+30.7994+129.5400/+30.8000+129.5388/+30.8005+129.5400/+30.8067+129.5600/+30.8099+129.5800/+30.8127+129.6000/+30.8183+129.6200/+30.8200+129.6273/+30.8225+129.6400/ 西 70 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8142+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.7805+130.2800/+30.8000+130.2622/+30.8142+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、２３日２１時から２４時までは火口から西方向、２４日０９時から１２時までは火口から西方向に降灰が予想されます。 　２３日２１時から２４日１５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 　２３日２１時から２４時まで　西　　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　２４日００時から０３時まで　西　　　　　　　５０ｋｍ　　３ｋｍ　　　　　 　２４日０３時から０６時まで　西　　　　　　　５０ｋｍ　　３ｋｍ　　　　　 　２４日０６時から０９時まで　西　　　　　　　５０ｋｍ　　３ｋｍ　　　　　 　２４日０９時から１２時まで　西　　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　２４日１２時から１５時まで　西　　　　　　　７０ｋｍ　　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。