2026-08-23T23:00:00Z 通常 気象庁本庁 気象庁 2026-08-24T08:00:00+09:00 2026-08-24T09:00:00+09:00 2026-08-25T03:00:00+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、２４日０９時から１２時までは火口から西方向、２４日２１時から２４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 2026-08-24T09:00:00+09:00 2026-08-24T12:00:00+09:00 降灰 70 +30.8604+129.6800/+30.8630+129.7000/+30.8651+129.7200/+30.8669+129.7400/+30.8682+129.7600/+30.8691+129.7800/+30.8650+129.8000/+30.8635+129.8200/+30.8619+129.8400/+30.8615+129.8600/+30.8611+129.8800/+30.8600+129.8828/+30.8544+129.9000/+30.8522+129.9200/+30.8504+129.9400/+30.8478+129.9600/+30.8441+129.9800/+30.8400+129.9838/+30.8374+130.0000/+30.8368+130.0200/+30.8361+130.0400/+30.8356+130.0600/+30.8350+130.0800/+30.8342+130.1000/+30.8336+130.1200/+30.8324+130.1400/+30.8296+130.1600/+30.8229+130.1800/+30.8200+130.1862/+30.8199+130.2000/+30.8199+130.2200/+30.8199+130.2400/+30.8199+130.2600/+30.8200+130.2800/+30.8199+130.3000/+30.8009+130.3200/+30.8000+130.3209/+30.7980+130.3200/+30.7800+130.3199/+30.7601+130.3000/+30.7601+130.2800/+30.7601+130.2600/+30.7601+130.2400/+30.7602+130.2200/+30.7603+130.2000/+30.7603+130.1800/+30.7603+130.1600/+30.7602+130.1400/+30.7600+130.1212/+30.7597+130.1200/+30.7600+130.1188/+30.7604+130.1000/+30.7606+130.0800/+30.7602+130.0600/+30.7608+130.0400/+30.7616+130.0200/+30.7636+130.0000/+30.7600+129.9869/+30.7548+129.9800/+30.7597+129.9600/+30.7600+129.9586/+30.7632+129.9400/+30.7671+129.9200/+30.7741+129.9000/+30.7723+129.8800/+30.7754+129.8600/+30.7800+129.8404/+30.7801+129.8400/+30.7817+129.8200/+30.7833+129.8000/+30.7849+129.7800/+30.7913+129.7600/+30.7992+129.7400/+30.8000+129.7382/+30.8150+129.7200/+30.8200+129.7122/+30.8267+129.7000/+30.8325+129.6800/+30.8389+129.6600/+30.8400+129.6566/+30.8440+129.6600/+30.8600+129.6774/+30.8604+129.6800/ 西 60 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8135+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.7843+130.2800/+30.8000+130.2633/+30.8135+130.2800/ 北西 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 +30.8209+129.6400/+30.8230+129.6600/+30.8247+129.6800/+30.8262+129.7000/+30.8283+129.7200/+30.8299+129.7400/+30.8307+129.7600/+30.8309+129.7800/+30.8266+129.8000/+30.8270+129.8200/+30.8273+129.8400/+30.8276+129.8600/+30.8279+129.8800/+30.8241+129.9000/+30.8264+129.9200/+30.8265+129.9400/+30.8270+129.9600/+30.8278+129.9800/+30.8200+129.9881/+30.8161+130.0000/+30.8162+130.0200/+30.8170+130.0400/+30.8172+130.0600/+30.8176+130.0800/+30.8183+130.1000/+30.8186+130.1200/+30.8189+130.1400/+30.8192+130.1600/+30.8195+130.1800/+30.8197+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+130.1516/+30.7537+130.1400/+30.7488+130.1200/+30.7463+130.1000/+30.7452+130.0800/+30.7449+130.0600/+30.7445+130.0400/+30.7437+130.0200/+30.7436+130.0000/+30.7400+129.9871/+30.7333+129.9800/+30.7341+129.9600/+30.7354+129.9400/+30.7377+129.9200/+30.7396+129.9000/+30.7334+129.8800/+30.7340+129.8600/+30.7348+129.8400/+30.7364+129.8200/+30.7384+129.8000/+30.7384+129.7800/+30.7400+129.7712/+30.7423+129.7600/+30.7465+129.7400/+30.7512+129.7200/+30.7569+129.7000/+30.7600+129.6870/+30.7616+129.6800/+30.7665+129.6600/+30.7710+129.6400/+30.7750+129.6200/+30.7796+129.6000/+30.7800+129.5989/+30.7880+129.5800/+30.7979+129.5600/+30.8000+129.5557/+30.8020+129.5600/+30.8101+129.5800/+30.8156+129.6000/+30.8185+129.6200/+30.8200+129.6319/+30.8209+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/+30.7824+130.2800/+30.8000+130.2619/+30.8142+130.2800/ 北西 3 鹿児島県三島村 4630300 2026-08-24T15:00:00+09:00 2026-08-24T18:00:00+09:00 降灰 70 +30.8426+129.6600/+30.8443+129.6800/+30.8457+129.7000/+30.8451+129.7200/+30.8446+129.7400/+30.8446+129.7600/+30.8449+129.7800/+30.8404+129.8000/+30.8400+129.8024/+30.8389+129.8200/+30.8380+129.8400/+30.8376+129.8600/+30.8374+129.8800/+30.8359+129.9000/+30.8360+129.9200/+30.8360+129.9400/+30.8362+129.9600/+30.8365+129.9800/+30.8281+130.0000/+30.8286+130.0200/+30.8255+130.0400/+30.8220+130.0600/+30.8207+130.0800/+30.8200+130.0831/+30.8199+130.1000/+30.8198+130.1200/+30.8198+130.1400/+30.8197+130.1600/+30.8198+130.1800/+30.8198+130.2000/+30.8199+130.2200/+30.8199+130.2400/+30.8199+130.2600/+30.8200+130.2800/+30.8199+130.3000/+30.8000+130.3199/+30.7800+130.3198/+30.7602+130.3000/+30.7601+130.2800/+30.7601+130.2600/+30.7601+130.2400/+30.7602+130.2200/+30.7603+130.2000/+30.7604+130.1800/+30.7605+130.1600/+30.7606+130.1400/+30.7607+130.1200/+30.7608+130.1000/+30.7608+130.0800/+30.7607+130.0600/+30.7609+130.0400/+30.7608+130.0200/+30.7607+130.0000/+30.7600+129.9972/+30.7455+129.9800/+30.7461+129.9600/+30.7471+129.9400/+30.7486+129.9200/+30.7501+129.9000/+30.7490+129.8800/+30.7509+129.8600/+30.7531+129.8400/+30.7563+129.8200/+30.7600+129.8008/+30.7601+129.8000/+30.7600+129.7980/+30.7587+129.7800/+30.7600+129.7728/+30.7616+129.7600/+30.7636+129.7400/+30.7649+129.7200/+30.7664+129.7000/+30.7695+129.6800/+30.7734+129.6600/+30.7777+129.6400/+30.7800+129.6298/+30.7824+129.6200/+30.7880+129.6000/+30.7933+129.5800/+30.7997+129.5600/+30.8000+129.5591/+30.8012+129.5600/+30.8186+129.5800/+30.8200+129.5827/+30.8268+129.6000/+30.8346+129.6200/+30.8397+129.6400/+30.8400+129.6417/+30.8426+129.6600/ 西 70 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8150+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.7843+130.2800/+30.8000+130.2615/+30.8150+130.2800/ 北西 3 鹿児島県三島村 4630300 2026-08-24T18:00:00+09:00 2026-08-24T21:00:00+09:00 降灰 70 +30.8437+129.6400/+30.8457+129.6600/+30.8455+129.6800/+30.8453+129.7000/+30.8473+129.7200/+30.8491+129.7400/+30.8505+129.7600/+30.8515+129.7800/+30.8532+129.8000/+30.8508+129.8200/+30.8481+129.8400/+30.8463+129.8600/+30.8443+129.8800/+30.8400+129.8873/+30.8386+129.9000/+30.8394+129.9200/+30.8394+129.9400/+30.8390+129.9600/+30.8382+129.9800/+30.8354+130.0000/+30.8346+130.0200/+30.8338+130.0400/+30.8335+130.0600/+30.8330+130.0800/+30.8324+130.1000/+30.8315+130.1200/+30.8295+130.1400/+30.8266+130.1600/+30.8200+130.1792/+30.8200+130.1800/+30.8199+130.2000/+30.8199+130.2200/+30.8199+130.2400/+30.8199+130.2600/+30.8200+130.2800/+30.8199+130.3000/+30.8000+130.3199/+30.7800+130.3198/+30.7602+130.3000/+30.7601+130.2800/+30.7601+130.2600/+30.7601+130.2400/+30.7602+130.2200/+30.7603+130.2000/+30.7604+130.1800/+30.7605+130.1600/+30.7606+130.1400/+30.7607+130.1200/+30.7609+130.1000/+30.7610+130.0800/+30.7613+130.0600/+30.7615+130.0400/+30.7615+130.0200/+30.7618+130.0000/+30.7600+129.9935/+30.7478+129.9800/+30.7493+129.9600/+30.7509+129.9400/+30.7524+129.9200/+30.7541+129.9000/+30.7597+129.8800/+30.7600+129.8787/+30.7614+129.8600/+30.7632+129.8400/+30.7646+129.8200/+30.7662+129.8000/+30.7647+129.7800/+30.7679+129.7600/+30.7709+129.7400/+30.7730+129.7200/+30.7755+129.7000/+30.7779+129.6800/+30.7800+129.6645/+30.7806+129.6600/+30.7848+129.6400/+30.7917+129.6200/+30.8000+129.6030/+30.8200+129.6089/+30.8355+129.6200/+30.8400+129.6261/+30.8437+129.6400/ 西 70 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8145+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.7822+130.2800/+30.8000+130.2617/+30.8145+130.2800/ 北西 3 鹿児島県三島村 4630300 2026-08-24T21:00:00+09:00 2026-08-25T00:00:00+09:00 降灰 70 +30.8001+129.7800/+30.8028+129.8000/+30.8060+129.8200/+30.8085+129.8400/+30.8105+129.8600/+30.8123+129.8800/+30.8114+129.9000/+30.8138+129.9200/+30.8169+129.9400/+30.8180+129.9600/+30.8177+129.9800/+30.8122+130.0000/+30.8126+130.0200/+30.8131+130.0400/+30.8149+130.0600/+30.8159+130.0800/+30.8162+130.1000/+30.8168+130.1200/+30.8178+130.1400/+30.8184+130.1600/+30.8189+130.1800/+30.8193+130.2000/+30.8196+130.2200/+30.8198+130.2400/+30.8199+130.2600/+30.8199+130.2800/+30.8199+130.3000/+30.8000+130.3199/+30.7800+130.3199/+30.7602+130.3000/+30.7601+130.2800/+30.7601+130.2600/+30.7601+130.2400/+30.7600+130.2288/+30.7517+130.2200/+30.7431+130.2000/+30.7417+130.1800/+30.7414+130.1600/+30.7412+130.1400/+30.7410+130.1200/+30.7407+130.1000/+30.7402+130.0800/+30.7400+130.0770/+30.7312+130.0600/+30.7269+130.0400/+30.7263+130.0200/+30.7235+130.0000/+30.7220+129.9800/+30.7210+129.9600/+30.7200+129.9457/+30.7181+129.9400/+30.7126+129.9200/+30.7064+129.9000/+30.7045+129.8800/+30.7056+129.8600/+30.7068+129.8400/+30.7065+129.8200/+30.7062+129.8000/+30.7134+129.7800/+30.7162+129.7600/+30.7200+129.7421/+30.7206+129.7400/+30.7270+129.7200/+30.7366+129.7000/+30.7400+129.6915/+30.7600+129.6832/+30.7702+129.7000/+30.7800+129.7158/+30.7819+129.7200/+30.7888+129.7400/+30.7947+129.7600/+30.8000+129.7797/+30.8001+129.7800/ 西 60 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8148+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7803+130.3000/+30.7800+130.2948/+30.7712+130.2800/+30.7800+130.2669/+30.8000+130.2622/+30.8148+130.2800/ 西 3 鹿児島県三島村 4630300 2026-08-25T00:00:00+09:00 2026-08-25T03:00:00+09:00 降灰 70 +30.8036+129.7000/+30.8061+129.7200/+30.8083+129.7400/+30.8106+129.7600/+30.8130+129.7800/+30.8122+129.8000/+30.8132+129.8200/+30.8141+129.8400/+30.8163+129.8600/+30.8182+129.8800/+30.8148+129.9000/+30.8153+129.9200/+30.8168+129.9400/+30.8175+129.9600/+30.8176+129.9800/+30.8111+130.0000/+30.8122+130.0200/+30.8137+130.0400/+30.8146+130.0600/+30.8157+130.0800/+30.8162+130.1000/+30.8173+130.1200/+30.8178+130.1400/+30.8184+130.1600/+30.8189+130.1800/+30.8194+130.2000/+30.8196+130.2200/+30.8198+130.2400/+30.8199+130.2600/+30.8199+130.2800/+30.8199+130.3000/+30.8000+130.3199/+30.7800+130.3198/+30.7602+130.3000/+30.7601+130.2800/+30.7601+130.2600/+30.7600+130.2519/+30.7484+130.2400/+30.7421+130.2200/+30.7412+130.2000/+30.7410+130.1800/+30.7408+130.1600/+30.7404+130.1400/+30.7400+130.1311/+30.7338+130.1200/+30.7281+130.1000/+30.7253+130.0800/+30.7243+130.0600/+30.7235+130.0400/+30.7225+130.0200/+30.7200+130.0020/+30.7185+130.0000/+30.7154+129.9800/+30.7135+129.9600/+30.7127+129.9400/+30.7128+129.9200/+30.7071+129.9000/+30.7062+129.8800/+30.7080+129.8600/+30.7103+129.8400/+30.7135+129.8200/+30.7176+129.8000/+30.7182+129.7800/+30.7200+129.7664/+30.7209+129.7600/+30.7237+129.7400/+30.7264+129.7200/+30.7296+129.7000/+30.7335+129.6800/+30.7382+129.6600/+30.7400+129.6532/+30.7519+129.6400/+30.7600+129.6317/+30.7679+129.6400/+30.7800+129.6545/+30.7840+129.6600/+30.7983+129.6800/+30.8000+129.6826/+30.8036+129.7000/ 西 60 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8149+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3107/+30.7693+130.3000/+30.7696+130.2800/+30.7800+130.2652/+30.8000+130.2616/+30.8149+130.2800/ 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、２４日０９時から１２時までは火口から西方向、２４日２１時から２４時までは火口から西方向に降灰が予想されます。 　２４日９時から２５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 　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　　　　　 　２４日１５時から１８時まで　西　　　　　　　７０ｋｍ　　３ｋｍ　　　　　 　２４日１８時から２１時まで　西　　　　　　　７０ｋｍ　　３ｋｍ　　　　　 　２４日２１時から２４時まで　西　　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　２５日００時から０３時まで　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：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。