2026-10-02T14:00:00Z 通常 気象庁本庁 気象庁 2026-10-02T23:00:00+09:00 2026-10-03T00:00:00+09:00 2026-10-03T18:00:00+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、３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 2026-10-03T00:00:00+09:00 2026-10-03T03:00:00+09:00 降灰 70 +30.8662+129.8200/+30.8744+129.8400/+30.8757+129.8600/+30.8762+129.8800/+30.8751+129.9000/+30.8733+129.9200/+30.8726+129.9400/+30.8706+129.9600/+30.8669+129.9800/+30.8656+130.0000/+30.8600+130.0062/+30.8532+130.0200/+30.8486+130.0400/+30.8400+130.0556/+30.8395+130.0600/+30.8392+130.0800/+30.8382+130.1000/+30.8372+130.1200/+30.8368+130.1400/+30.8360+130.1600/+30.8340+130.1800/+30.8291+130.2000/+30.8200+130.2179/+30.8200+130.2200/+30.8199+130.2400/+30.8199+130.2600/+30.8200+130.2800/+30.8199+130.3000/+30.8161+130.3200/+30.8000+130.3361/+30.7800+130.3323/+30.7677+130.3200/+30.7601+130.3000/+30.7601+130.2800/+30.7601+130.2600/+30.7602+130.2400/+30.7603+130.2200/+30.7605+130.2000/+30.7607+130.1800/+30.7609+130.1600/+30.7612+130.1400/+30.7618+130.1200/+30.7625+130.1000/+30.7636+130.0800/+30.7648+130.0600/+30.7666+130.0400/+30.7691+130.0200/+30.7738+130.0000/+30.7697+129.9800/+30.7774+129.9600/+30.7800+129.9537/+30.7819+129.9400/+30.7848+129.9200/+30.7895+129.9000/+30.7941+129.8800/+30.8000+129.8683/+30.8045+129.8600/+30.8179+129.8400/+30.8200+129.8356/+30.8288+129.8200/+30.8400+129.8047/+30.8600+129.8136/+30.8662+129.8200/ 西 50 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8078+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.7863+130.2800/+30.8000+130.2707/+30.8078+130.2800/ 北西 3 鹿児島県三島村 4630300 2026-10-03T03:00:00+09:00 2026-10-03T06:00:00+09:00 降灰 70 +30.8428+129.8400/+30.8420+129.8600/+30.8413+129.8800/+30.8400+129.8838/+30.8381+129.9000/+30.8379+129.9200/+30.8372+129.9400/+30.8366+129.9600/+30.8361+129.9800/+30.8329+130.0000/+30.8302+130.0200/+30.8272+130.0400/+30.8242+130.0600/+30.8219+130.0800/+30.8200+130.0855/+30.8195+130.1000/+30.8191+130.1200/+30.8192+130.1400/+30.8192+130.1600/+30.8193+130.1800/+30.8195+130.2000/+30.8197+130.2200/+30.8198+130.2400/+30.8199+130.2600/+30.8200+130.2800/+30.8199+130.3000/+30.8151+130.3200/+30.8000+130.3351/+30.7800+130.3305/+30.7695+130.3200/+30.7601+130.3000/+30.7600+130.2800/+30.7601+130.2600/+30.7600+130.2400/+30.7600+130.2360/+30.7489+130.2200/+30.7450+130.2000/+30.7442+130.1800/+30.7439+130.1600/+30.7434+130.1400/+30.7439+130.1200/+30.7440+130.1000/+30.7447+130.0800/+30.7451+130.0600/+30.7468+130.0400/+30.7469+130.0200/+30.7479+130.0000/+30.7426+129.9800/+30.7451+129.9600/+30.7479+129.9400/+30.7500+129.9200/+30.7537+129.9000/+30.7600+129.8813/+30.7605+129.8800/+30.7657+129.8600/+30.7723+129.8400/+30.7754+129.8200/+30.7796+129.8000/+30.7800+129.7984/+30.7853+129.7800/+30.7905+129.7600/+30.7995+129.7400/+30.8000+129.7393/+30.8008+129.7400/+30.8145+129.7600/+30.8200+129.7765/+30.8210+129.7800/+30.8299+129.8000/+30.8374+129.8200/+30.8400+129.8280/+30.8428+129.8400/ 西 50 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8074+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3059/+30.7740+130.3000/+30.7800+130.2825/+30.7819+130.2800/+30.8000+130.2710/+30.8074+130.2800/ 西 3 鹿児島県三島村 4630300 2026-10-03T06:00:00+09:00 2026-10-03T09:00:00+09:00 降灰 70 +30.8058+129.9200/+30.8109+129.9400/+30.8142+129.9600/+30.8160+129.9800/+30.8114+130.0000/+30.8125+130.0200/+30.8125+130.0400/+30.8138+130.0600/+30.8145+130.0800/+30.8148+130.1000/+30.8162+130.1200/+30.8168+130.1400/+30.8173+130.1600/+30.8181+130.1800/+30.8187+130.2000/+30.8192+130.2200/+30.8197+130.2400/+30.8199+130.2600/+30.8200+130.2800/+30.8199+130.3000/+30.8158+130.3200/+30.8000+130.3358/+30.7800+130.3322/+30.7678+130.3200/+30.7601+130.3000/+30.7600+130.2800/+30.7600+130.2600/+30.7600+130.2581/+30.7438+130.2400/+30.7416+130.2200/+30.7411+130.2000/+30.7410+130.1800/+30.7408+130.1600/+30.7404+130.1400/+30.7400+130.1271/+30.7371+130.1200/+30.7298+130.1000/+30.7286+130.0800/+30.7270+130.0600/+30.7265+130.0400/+30.7261+130.0200/+30.7239+130.0000/+30.7235+129.9800/+30.7250+129.9600/+30.7257+129.9400/+30.7249+129.9200/+30.7269+129.9000/+30.7326+129.8800/+30.7367+129.8600/+30.7400+129.8481/+30.7428+129.8400/+30.7521+129.8200/+30.7600+129.8075/+30.7677+129.8200/+30.7746+129.8400/+30.7800+129.8534/+30.7824+129.8600/+30.7890+129.8800/+30.7993+129.9000/+30.8000+129.9025/+30.8058+129.9200/ 西 50 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8047+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3102/+30.7698+130.3000/+30.7797+130.2800/+30.7800+130.2796/+30.8000+130.2742/+30.8047+130.2800/ 西 3 鹿児島県三島村 4630300 2026-10-03T09:00:00+09:00 2026-10-03T12:00:00+09:00 降灰 70 +30.8467+129.8000/+30.8517+129.8200/+30.8553+129.8400/+30.8561+129.8600/+30.8566+129.8800/+30.8574+129.9000/+30.8568+129.9200/+30.8541+129.9400/+30.8494+129.9600/+30.8408+129.9800/+30.8400+129.9823/+30.8380+130.0000/+30.8356+130.0200/+30.8343+130.0400/+30.8279+130.0600/+30.8251+130.0800/+30.8203+130.1000/+30.8200+130.1011/+30.8196+130.1200/+30.8192+130.1400/+30.8193+130.1600/+30.8194+130.1800/+30.8195+130.2000/+30.8196+130.2200/+30.8198+130.2400/+30.8199+130.2600/+30.8199+130.2800/+30.8199+130.3000/+30.8122+130.3200/+30.8000+130.3322/+30.7800+130.3244/+30.7756+130.3200/+30.7601+130.3000/+30.7601+130.2800/+30.7601+130.2600/+30.7600+130.2450/+30.7551+130.2400/+30.7434+130.2200/+30.7419+130.2000/+30.7417+130.1800/+30.7415+130.1600/+30.7413+130.1400/+30.7410+130.1200/+30.7411+130.1000/+30.7405+130.0800/+30.7403+130.0600/+30.7400+130.0558/+30.7345+130.0400/+30.7347+130.0200/+30.7400+130.0039/+30.7405+130.0000/+30.7400+129.9972/+30.7324+129.9800/+30.7350+129.9600/+30.7392+129.9400/+30.7400+129.9373/+30.7448+129.9200/+30.7488+129.9000/+30.7556+129.8800/+30.7600+129.8698/+30.7650+129.8600/+30.7776+129.8400/+30.7800+129.8350/+30.7889+129.8200/+30.8000+129.8063/+30.8176+129.8000/+30.8200+129.7991/+30.8400+129.7935/+30.8467+129.8000/ 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/+30.7800+130.3069/+30.7731+130.3000/+30.7707+130.2800/+30.7800+130.2674/+30.8000+130.2657/+30.8113+130.2800/ 西 3 鹿児島県三島村 4630300 2026-10-03T12:00:00+09:00 2026-10-03T15:00:00+09:00 降灰 70 +30.8400+129.7400/+30.8441+129.7600/+30.8467+129.7800/+30.8507+129.8000/+30.8509+129.8200/+30.8510+129.8400/+30.8494+129.8600/+30.8478+129.8800/+30.8421+129.9000/+30.8405+129.9200/+30.8400+129.9212/+30.8383+129.9400/+30.8375+129.9600/+30.8371+129.9800/+30.8335+130.0000/+30.8318+130.0200/+30.8294+130.0400/+30.8246+130.0600/+30.8245+130.0800/+30.8200+130.0921/+30.8198+130.1000/+30.8196+130.1200/+30.8195+130.1400/+30.8195+130.1600/+30.8196+130.1800/+30.8197+130.2000/+30.8198+130.2200/+30.8199+130.2400/+30.8199+130.2600/+30.8199+130.2800/+30.8199+130.3000/+30.8055+130.3200/+30.8000+130.3255/+30.7893+130.3200/+30.7800+130.3199/+30.7602+130.3000/+30.7601+130.2800/+30.7601+130.2600/+30.7601+130.2400/+30.7601+130.2200/+30.7600+130.2000/+30.7600+130.1954/+30.7513+130.1800/+30.7463+130.1600/+30.7458+130.1400/+30.7454+130.1200/+30.7452+130.1000/+30.7457+130.0800/+30.7459+130.0600/+30.7460+130.0400/+30.7459+130.0200/+30.7473+130.0000/+30.7416+129.9800/+30.7429+129.9600/+30.7446+129.9400/+30.7467+129.9200/+30.7487+129.9000/+30.7504+129.8800/+30.7538+129.8600/+30.7580+129.8400/+30.7600+129.8299/+30.7613+129.8200/+30.7646+129.8000/+30.7693+129.7800/+30.7752+129.7600/+30.7800+129.7456/+30.7821+129.7400/+30.7903+129.7200/+30.8000+129.7011/+30.8200+129.7112/+30.8292+129.7200/+30.8400+129.7400/ 西 60 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8130+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.7800+130.2813/+30.7787+130.2800/+30.7800+130.2778/+30.8000+130.2642/+30.8130+130.2800/ 西 3 鹿児島県三島村 4630300 2026-10-03T15:00:00+09:00 2026-10-03T18:00:00+09:00 降灰 70 +30.8221+129.7200/+30.8249+129.7400/+30.8270+129.7600/+30.8286+129.7800/+30.8258+129.8000/+30.8266+129.8200/+30.8273+129.8400/+30.8278+129.8600/+30.8283+129.8800/+30.8229+129.9000/+30.8240+129.9200/+30.8267+129.9400/+30.8282+129.9600/+30.8292+129.9800/+30.8200+129.9903/+30.8175+130.0000/+30.8175+130.0200/+30.8175+130.0400/+30.8173+130.0600/+30.8176+130.0800/+30.8181+130.1000/+30.8185+130.1200/+30.8188+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/+30.8000+130.3200/+30.7800+130.3199/+30.7601+130.3000/+30.7601+130.2800/+30.7601+130.2600/+30.7601+130.2400/+30.7601+130.2200/+30.7602+130.2000/+30.7602+130.1800/+30.7601+130.1600/+30.7600+130.1491/+30.7568+130.1400/+30.7494+130.1200/+30.7475+130.1000/+30.7463+130.0800/+30.7461+130.0600/+30.7462+130.0400/+30.7465+130.0200/+30.7457+130.0000/+30.7400+129.9820/+30.7380+129.9800/+30.7379+129.9600/+30.7381+129.9400/+30.7387+129.9200/+30.7400+129.9000/+30.7327+129.8800/+30.7342+129.8600/+30.7360+129.8400/+30.7365+129.8200/+30.7371+129.8000/+30.7363+129.7800/+30.7399+129.7600/+30.7400+129.7595/+30.7453+129.7400/+30.7519+129.7200/+30.7600+129.7000/+30.7707+129.6800/+30.7800+129.6649/+30.7833+129.6600/+30.7984+129.6400/+30.8000+129.6382/+30.8009+129.6400/+30.8088+129.6600/+30.8143+129.6800/+30.8184+129.7000/+30.8200+129.7082/+30.8221+129.7200/ 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/+30.7800+130.2857/+30.7743+130.2800/+30.7800+130.2709/+30.8000+130.2637/+30.8135+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、３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。 　３日０時から３日１８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 　０３日００時から０３時まで　西　　　　　　　５０ｋｍ　　３ｋｍ　　　　　 　０３日０３時から０６時まで　西　　　　　　　５０ｋｍ　　３ｋｍ　　　　　 　０３日０６時から０９時まで　西　　　　　　　５０ｋｍ　　３ｋｍ　　　　　 　０３日０９時から１２時まで　西　　　　　　　５０ｋｍ　　３ｋｍ　　　　　 　０３日１２時から１５時まで　西　　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　０３日１５時から１８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。