2026-09-16T14:00:00Z 通常 気象庁本庁 気象庁 2026-09-16T23:00:00+09:00 2026-09-17T00:00:00+09:00 2026-09-17T18:00:00+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、１７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 2026-09-17T00:00:00+09:00 2026-09-17T03:00:00+09:00 降灰 70 +30.8441+129.8200/+30.8487+129.8400/+30.8511+129.8600/+30.8529+129.8800/+30.8539+129.9000/+30.8549+129.9200/+30.8536+129.9400/+30.8501+129.9600/+30.8435+129.9800/+30.8400+129.9847/+30.8372+130.0000/+30.8362+130.0200/+30.8347+130.0400/+30.8302+130.0600/+30.8264+130.0800/+30.8246+130.1000/+30.8207+130.1200/+30.8200+130.1235/+30.8197+130.1400/+30.8193+130.1600/+30.8194+130.1800/+30.8194+130.2000/+30.8196+130.2200/+30.8198+130.2400/+30.8199+130.2600/+30.8200+130.2800/+30.8200+130.3000/+30.8161+130.3200/+30.8000+130.3361/+30.7800+130.3319/+30.7681+130.3200/+30.7601+130.3000/+30.7600+130.2800/+30.7600+130.2600/+30.7600+130.2582/+30.7444+130.2400/+30.7421+130.2200/+30.7417+130.2000/+30.7413+130.1800/+30.7412+130.1600/+30.7413+130.1400/+30.7411+130.1200/+30.7408+130.1000/+30.7406+130.0800/+30.7412+130.0600/+30.7411+130.0400/+30.7443+130.0200/+30.7457+130.0000/+30.7451+129.9800/+30.7493+129.9600/+30.7563+129.9400/+30.7600+129.9331/+30.7666+129.9200/+30.7726+129.9000/+30.7800+129.8835/+30.7820+129.8800/+30.7903+129.8600/+30.8000+129.8434/+30.8079+129.8400/+30.8200+129.8304/+30.8302+129.8200/+30.8400+129.8068/+30.8441+129.8200/ 西 50 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8059+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3011/+30.7789+130.3000/+30.7800+130.2956/+30.7868+130.2800/+30.8000+130.2728/+30.8059+130.2800/ 西 3 鹿児島県三島村 4630300 2026-09-17T03:00:00+09:00 2026-09-17T06:00:00+09:00 降灰 70 +30.8424+129.8000/+30.8471+129.8200/+30.8499+129.8400/+30.8531+129.8600/+30.8554+129.8800/+30.8533+129.9000/+30.8508+129.9200/+30.8498+129.9400/+30.8477+129.9600/+30.8443+129.9800/+30.8400+129.9856/+30.8369+130.0000/+30.8366+130.0200/+30.8342+130.0400/+30.8325+130.0600/+30.8313+130.0800/+30.8298+130.1000/+30.8215+130.1200/+30.8206+130.1400/+30.8200+130.1425/+30.8198+130.1600/+30.8197+130.1800/+30.8197+130.2000/+30.8197+130.2200/+30.8199+130.2400/+30.8200+130.2600/+30.8200+130.2800/+30.8200+130.3000/+30.8160+130.3200/+30.8000+130.3360/+30.7800+130.3323/+30.7677+130.3200/+30.7601+130.3000/+30.7600+130.2800/+30.7600+130.2600/+30.7600+130.2522/+30.7491+130.2400/+30.7443+130.2200/+30.7428+130.2000/+30.7425+130.1800/+30.7424+130.1600/+30.7426+130.1400/+30.7430+130.1200/+30.7425+130.1000/+30.7431+130.0800/+30.7432+130.0600/+30.7441+130.0400/+30.7448+130.0200/+30.7472+130.0000/+30.7463+129.9800/+30.7484+129.9600/+30.7530+129.9400/+30.7600+129.9229/+30.7610+129.9200/+30.7680+129.9000/+30.7800+129.8811/+30.7810+129.8800/+30.7870+129.8600/+30.7943+129.8400/+30.8000+129.8271/+30.8127+129.8200/+30.8200+129.8148/+30.8352+129.8000/+30.8400+129.7977/+30.8424+129.8000/ 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/+30.7800+130.3036/+30.7764+130.3000/+30.7800+130.2913/+30.7861+130.2800/+30.8000+130.2705/+30.8078+130.2800/ 西 3 鹿児島県三島村 4630300 2026-09-17T06:00:00+09:00 2026-09-17T09:00:00+09:00 降灰 70 +30.8036+129.8600/+30.8081+129.8800/+30.8083+129.9000/+30.8098+129.9200/+30.8125+129.9400/+30.8147+129.9600/+30.8161+129.9800/+30.8105+130.0000/+30.8106+130.0200/+30.8108+130.0400/+30.8094+130.0600/+30.8080+130.0800/+30.8082+130.1000/+30.8114+130.1200/+30.8108+130.1400/+30.8129+130.1600/+30.8152+130.1800/+30.8171+130.2000/+30.8194+130.2200/+30.8199+130.2400/+30.8200+130.2600/+30.8200+130.2800/+30.8199+130.3000/+30.8152+130.3200/+30.8000+130.3352/+30.7800+130.3312/+30.7688+130.3200/+30.7601+130.3000/+30.7600+130.2800/+30.7600+130.2638/+30.7562+130.2600/+30.7416+130.2400/+30.7407+130.2200/+30.7405+130.2000/+30.7403+130.1800/+30.7400+130.1721/+30.7311+130.1600/+30.7249+130.1400/+30.7230+130.1200/+30.7220+130.1000/+30.7208+130.0800/+30.7200+130.0632/+30.7188+130.0600/+30.7103+130.0400/+30.7085+130.0200/+30.7005+130.0000/+30.7000+129.9914/+30.6987+129.9800/+30.6982+129.9600/+30.6988+129.9400/+30.7000+129.9275/+30.7006+129.9200/+30.7002+129.9000/+30.7038+129.8800/+30.7099+129.8600/+30.7200+129.8403/+30.7204+129.8400/+30.7400+129.8226/+30.7431+129.8200/+30.7600+129.8065/+30.7800+129.8080/+30.7946+129.8200/+30.7966+129.8400/+30.8000+129.8472/+30.8036+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/+30.7800+130.3135/+30.7665+130.3000/+30.7712+130.2800/+30.7800+130.2678/+30.8000+130.2669/+30.8106+130.2800/ 西 3 鹿児島県三島村 4630300 2026-09-17T09:00:00+09:00 2026-09-17T12:00:00+09:00 降灰 70 +30.8023+129.6800/+30.8084+129.7000/+30.8122+129.7200/+30.8153+129.7400/+30.8172+129.7600/+30.8183+129.7800/+30.8170+129.8000/+30.8155+129.8200/+30.8140+129.8400/+30.8139+129.8600/+30.8139+129.8800/+30.8112+129.9000/+30.8116+129.9200/+30.8116+129.9400/+30.8119+129.9600/+30.8123+129.9800/+30.8000+129.9962/+30.7991+130.0000/+30.7995+130.0200/+30.7997+130.0400/+30.7991+130.0600/+30.7995+130.0800/+30.7994+130.1000/+30.7996+130.1200/+30.8000+130.1374/+30.8008+130.1400/+30.8053+130.1600/+30.8113+130.1800/+30.8155+130.2000/+30.8181+130.2200/+30.8193+130.2400/+30.8198+130.2600/+30.8199+130.2800/+30.8199+130.3000/+30.8056+130.3200/+30.8000+130.3256/+30.7859+130.3200/+30.7800+130.3200/+30.7601+130.3000/+30.7600+130.2800/+30.7600+130.2778/+30.7423+130.2600/+30.7405+130.2400/+30.7404+130.2200/+30.7402+130.2000/+30.7400+130.1933/+30.7286+130.1800/+30.7236+130.1600/+30.7221+130.1400/+30.7216+130.1200/+30.7208+130.1000/+30.7200+130.0845/+30.7180+130.0800/+30.7124+130.0600/+30.7099+130.0400/+30.7086+130.0200/+30.7032+130.0000/+30.7042+129.9800/+30.7077+129.9600/+30.7117+129.9400/+30.7155+129.9200/+30.7200+129.9074/+30.7212+129.9000/+30.7217+129.8800/+30.7247+129.8600/+30.7280+129.8400/+30.7318+129.8200/+30.7368+129.8000/+30.7379+129.7800/+30.7400+129.7735/+30.7478+129.7600/+30.7596+129.7400/+30.7600+129.7393/+30.7749+129.7200/+30.7800+129.7119/+30.7866+129.7000/+30.7968+129.6800/+30.8000+129.6739/+30.8023+129.6800/ 西 60 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8116+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3164/+30.7636+130.3000/+30.7671+130.2800/+30.7800+130.2638/+30.8000+130.2654/+30.8116+130.2800/ 西 3 鹿児島県三島村 4630300 2026-09-17T12:00:00+09:00 2026-09-17T15:00:00+09:00 降灰 70 +30.8105+130.2200/+30.8187+130.2400/+30.8198+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/+30.7600+130.2777/+30.7423+130.2600/+30.7404+130.2400/+30.7403+130.2200/+30.7401+130.2000/+30.7400+130.1967/+30.7252+130.1800/+30.7217+130.1600/+30.7211+130.1400/+30.7204+130.1200/+30.7200+130.1156/+30.7079+130.1000/+30.7045+130.0800/+30.7022+130.0600/+30.7010+130.0400/+30.7000+130.0307/+30.6908+130.0200/+30.6811+130.0000/+30.6800+129.9920/+30.6760+129.9800/+30.6724+129.9600/+30.6696+129.9400/+30.6671+129.9200/+30.6600+129.9039/+30.6567+129.9000/+30.6550+129.8800/+30.6541+129.8600/+30.6533+129.8400/+30.6526+129.8200/+30.6513+129.8000/+30.6487+129.7800/+30.6457+129.7600/+30.6433+129.7400/+30.6416+129.7200/+30.6400+129.7057/+30.6395+129.7000/+30.6387+129.6800/+30.6378+129.6600/+30.6382+129.6400/+30.6400+129.6200/+30.6400+129.6198/+30.6508+129.6000/+30.6600+129.5948/+30.6628+129.6000/+30.6709+129.6200/+30.6800+129.6361/+30.6827+129.6400/+30.7000+129.6560/+30.7017+129.6600/+30.7096+129.6800/+30.7156+129.7000/+30.7200+129.7111/+30.7230+129.7200/+30.7286+129.7400/+30.7328+129.7600/+30.7363+129.7800/+30.7400+129.7922/+30.7419+129.8000/+30.7468+129.8200/+30.7503+129.8400/+30.7537+129.8600/+30.7564+129.8800/+30.7600+129.8925/+30.7631+129.9000/+30.7672+129.9200/+30.7712+129.9400/+30.7737+129.9600/+30.7754+129.9800/+30.7745+130.0000/+30.7768+130.0200/+30.7787+130.0400/+30.7798+130.0600/+30.7800+130.0648/+30.7853+130.0800/+30.7921+130.1000/+30.7961+130.1200/+30.7983+130.1400/+30.7991+130.1600/+30.7996+130.1800/+30.7998+130.2000/+30.8000+130.2081/+30.8105+130.2200/ 西 70 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/+30.7800+130.3166/+30.7634+130.3000/+30.7656+130.2800/+30.7800+130.2618/+30.8000+130.2627/+30.8148+130.2800/ 西 3 鹿児島県三島村 4630300 2026-09-17T15:00:00+09:00 2026-09-17T18:00:00+09:00 降灰 70 +30.8085+130.2200/+30.8187+130.2400/+30.8198+130.2600/+30.8199+130.2800/+30.8199+130.3000/+30.8000+130.3199/+30.7800+130.3199/+30.7601+130.3000/+30.7601+130.2800/+30.7600+130.2741/+30.7459+130.2600/+30.7406+130.2400/+30.7403+130.2200/+30.7402+130.2000/+30.7401+130.1800/+30.7400+130.1779/+30.7251+130.1600/+30.7222+130.1400/+30.7214+130.1200/+30.7209+130.1000/+30.7201+130.0800/+30.7200+130.0783/+30.7085+130.0600/+30.7052+130.0400/+30.7035+130.0200/+30.7000+130.0126/+30.6875+130.0000/+30.6864+129.9800/+30.6854+129.9600/+30.6842+129.9400/+30.6828+129.9200/+30.6824+129.9000/+30.6814+129.8800/+30.6802+129.8600/+30.6800+129.8580/+30.6760+129.8400/+30.6756+129.8200/+30.6751+129.8000/+30.6697+129.7800/+30.6701+129.7600/+30.6711+129.7400/+30.6727+129.7200/+30.6748+129.7000/+30.6774+129.6800/+30.6800+129.6635/+30.6806+129.6600/+30.6847+129.6400/+30.6903+129.6200/+30.6980+129.6000/+30.7000+129.5938/+30.7023+129.6000/+30.7113+129.6200/+30.7181+129.6400/+30.7200+129.6464/+30.7236+129.6600/+30.7284+129.6800/+30.7325+129.7000/+30.7382+129.7200/+30.7400+129.7267/+30.7440+129.7400/+30.7495+129.7600/+30.7546+129.7800/+30.7525+129.8000/+30.7549+129.8200/+30.7568+129.8400/+30.7600+129.8585/+30.7607+129.8600/+30.7687+129.8800/+30.7693+129.9000/+30.7712+129.9200/+30.7738+129.9400/+30.7756+129.9600/+30.7770+129.9800/+30.7751+130.0000/+30.7765+130.0200/+30.7781+130.0400/+30.7792+130.0600/+30.7800+130.0800/+30.7800+130.0805/+30.7897+130.1000/+30.7956+130.1200/+30.7980+130.1400/+30.7991+130.1600/+30.7996+130.1800/+30.7998+130.2000/+30.8000+130.2107/+30.8085+130.2200/ 西 70 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8144+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3155/+30.7645+130.3000/+30.7665+130.2800/+30.7800+130.2630/+30.8000+130.2621/+30.8144+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、１７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。 　１７日０時から１７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 　１７日００時から０３時まで　西　　　　　　　５０ｋｍ　　３ｋｍ　　　　　 　１７日０３時から０６時まで　西　　　　　　　５０ｋｍ　　３ｋｍ　　　　　 　１７日０６時から０９時まで　西　　　　　　　５０ｋｍ　　３ｋｍ　　　　　 　１７日０９時から１２時まで　西　　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　１７日１２時から１５時まで　西　　　　　　　７０ｋｍ　　３ｋｍ　　　　　 　１７日１５時から１８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。