2026-09-17T02:00:00Z 通常 気象庁本庁 気象庁 2026-09-17T11:00:00+09:00 2026-09-17T12:00:00+09:00 2026-09-18T06:00:00+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 2026-09-17T12:00:00+09:00 2026-09-17T15:00:00+09:00 降灰 70 +30.8095+130.2200/+30.8188+130.2400/+30.8198+130.2600/+30.8199+130.2800/+30.8199+130.3000/+30.8087+130.3200/+30.8000+130.3287/+30.7800+130.3209/+30.7791+130.3200/+30.7601+130.3000/+30.7600+130.2800/+30.7600+130.2699/+30.7501+130.2600/+30.7409+130.2400/+30.7404+130.2200/+30.7403+130.2000/+30.7402+130.1800/+30.7400+130.1717/+30.7299+130.1600/+30.7231+130.1400/+30.7218+130.1200/+30.7212+130.1000/+30.7205+130.0800/+30.7200+130.0697/+30.7141+130.0600/+30.7081+130.0400/+30.7056+130.0200/+30.7000+130.0094/+30.6906+130.0000/+30.6889+129.9800/+30.6875+129.9600/+30.6858+129.9400/+30.6838+129.9200/+30.6833+129.9000/+30.6822+129.8800/+30.6808+129.8600/+30.6800+129.8516/+30.6773+129.8400/+30.6742+129.8200/+30.6718+129.8000/+30.6717+129.7800/+30.6745+129.7600/+30.6774+129.7400/+30.6800+129.7205/+30.6801+129.7200/+30.6837+129.7000/+30.6901+129.6800/+30.7000+129.6607/+30.7100+129.6800/+30.7186+129.7000/+30.7200+129.7042/+30.7250+129.7200/+30.7307+129.7400/+30.7387+129.7600/+30.7400+129.7625/+30.7488+129.7800/+30.7517+129.8000/+30.7548+129.8200/+30.7575+129.8400/+30.7600+129.8511/+30.7641+129.8600/+30.7709+129.8800/+30.7710+129.9000/+30.7732+129.9200/+30.7750+129.9400/+30.7766+129.9600/+30.7779+129.9800/+30.7772+130.0000/+30.7783+130.0200/+30.7795+130.0400/+30.7799+130.0600/+30.7800+130.0622/+30.7878+130.0800/+30.7939+130.1000/+30.7969+130.1200/+30.7984+130.1400/+30.7992+130.1600/+30.7996+130.1800/+30.7999+130.2000/+30.8000+130.2089/+30.8095+130.2200/ 西 60 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8119+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3142/+30.7658+130.3000/+30.7682+130.2800/+30.7800+130.2651/+30.8000+130.2661/+30.8119+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 +30.8176+130.2400/+30.8198+130.2600/+30.8199+130.2800/+30.8199+130.3000/+30.8000+130.3200/+30.7800+130.3199/+30.7601+130.3000/+30.7600+130.2800/+30.7600+130.2771/+30.7429+130.2600/+30.7404+130.2400/+30.7403+130.2200/+30.7402+130.2000/+30.7400+130.1864/+30.7340+130.1800/+30.7237+130.1600/+30.7218+130.1400/+30.7211+130.1200/+30.7205+130.1000/+30.7200+130.0846/+30.7170+130.0800/+30.7070+130.0600/+30.7051+130.0400/+30.7035+130.0200/+30.7000+130.0127/+30.6873+130.0000/+30.6861+129.9800/+30.6841+129.9600/+30.6826+129.9400/+30.6814+129.9200/+30.6811+129.9000/+30.6800+129.8829/+30.6791+129.8800/+30.6750+129.8600/+30.6716+129.8400/+30.6686+129.8200/+30.6671+129.8000/+30.6668+129.7800/+30.6678+129.7600/+30.6690+129.7400/+30.6704+129.7200/+30.6722+129.7000/+30.6742+129.6800/+30.6767+129.6600/+30.6800+129.6439/+30.6810+129.6400/+30.6885+129.6200/+30.7000+129.6008/+30.7091+129.6200/+30.7159+129.6400/+30.7200+129.6572/+30.7206+129.6600/+30.7243+129.6800/+30.7276+129.7000/+30.7315+129.7200/+30.7350+129.7400/+30.7394+129.7600/+30.7400+129.7624/+30.7461+129.7800/+30.7499+129.8000/+30.7520+129.8200/+30.7537+129.8400/+30.7568+129.8600/+30.7592+129.8800/+30.7600+129.8837/+30.7654+129.9000/+30.7686+129.9200/+30.7719+129.9400/+30.7741+129.9600/+30.7756+129.9800/+30.7727+130.0000/+30.7752+130.0200/+30.7772+130.0400/+30.7785+130.0600/+30.7793+130.0800/+30.7799+130.1000/+30.7800+130.1029/+30.7906+130.1200/+30.7965+130.1400/+30.7987+130.1600/+30.7995+130.1800/+30.7998+130.2000/+30.7999+130.2200/+30.8000+130.2215/+30.8176+130.2400/ 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/+30.7800+130.3170/+30.7630+130.3000/+30.7659+130.2800/+30.7800+130.2619/+30.8000+130.2625/+30.8145+130.2800/ 西 3 鹿児島県三島村 4630300 2026-09-17T18:00:00+09:00 2026-09-17T21:00:00+09:00 降灰 70 +30.8006+130.1400/+30.8099+130.1600/+30.8151+130.1800/+30.8180+130.2000/+30.8190+130.2200/+30.8197+130.2400/+30.8199+130.2600/+30.8199+130.2800/+30.8199+130.3000/+30.8077+130.3200/+30.8000+130.3277/+30.7833+130.3200/+30.7800+130.3200/+30.7602+130.3000/+30.7601+130.2800/+30.7600+130.2747/+30.7454+130.2600/+30.7408+130.2400/+30.7404+130.2200/+30.7403+130.2000/+30.7400+130.1878/+30.7328+130.1800/+30.7240+130.1600/+30.7220+130.1400/+30.7211+130.1200/+30.7201+130.1000/+30.7200+130.0985/+30.7091+130.0800/+30.7052+130.0600/+30.7033+130.0400/+30.7013+130.0200/+30.7000+130.0163/+30.6858+130.0000/+30.6847+129.9800/+30.6829+129.9600/+30.6815+129.9400/+30.6803+129.9200/+30.6800+129.9143/+30.6773+129.9000/+30.6708+129.8800/+30.6675+129.8600/+30.6647+129.8400/+30.6641+129.8200/+30.6644+129.8000/+30.6642+129.7800/+30.6645+129.7600/+30.6654+129.7400/+30.6670+129.7200/+30.6690+129.7000/+30.6695+129.6800/+30.6702+129.6600/+30.6723+129.6400/+30.6766+129.6200/+30.6800+129.6084/+30.6831+129.6000/+30.6907+129.5800/+30.7000+129.5611/+30.7058+129.5800/+30.7112+129.6000/+30.7177+129.6200/+30.7200+129.6285/+30.7229+129.6400/+30.7270+129.6600/+30.7304+129.6800/+30.7335+129.7000/+30.7388+129.7200/+30.7400+129.7246/+30.7449+129.7400/+30.7504+129.7600/+30.7553+129.7800/+30.7527+129.8000/+30.7558+129.8200/+30.7584+129.8400/+30.7600+129.8513/+30.7633+129.8600/+30.7691+129.8800/+30.7703+129.9000/+30.7729+129.9200/+30.7757+129.9400/+30.7779+129.9600/+30.7797+129.9800/+30.7800+129.9904/+30.7813+130.0000/+30.7874+130.0200/+30.7905+130.0400/+30.7941+130.0600/+30.7964+130.0800/+30.7979+130.1000/+30.7991+130.1200/+30.8000+130.1388/+30.8006+130.1400/ 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/+30.7800+130.3166/+30.7634+130.3000/+30.7660+130.2800/+30.7800+130.2614/+30.8000+130.2616/+30.8142+130.2800/ 西 3 鹿児島県三島村 4630300 2026-09-17T21:00:00+09:00 2026-09-18T00:00:00+09:00 降灰 70 +30.9240+130.0400/+30.9200+130.0554/+30.9106+130.0400/+30.9200+130.0322/+30.9240+130.0400/ +30.9214+130.0800/+30.9200+130.0825/+30.9092+130.1000/+30.9030+130.1200/+30.9000+130.1242/+30.8917+130.1400/+30.8800+130.1597/+30.8797+130.1600/+30.8633+130.1800/+30.8600+130.1850/+30.8571+130.2000/+30.8488+130.2200/+30.8400+130.2366/+30.8400+130.2400/+30.8396+130.2600/+30.8372+130.2800/+30.8200+130.2975/+30.8200+130.3000/+30.8153+130.3200/+30.8000+130.3353/+30.7800+130.3294/+30.7706+130.3200/+30.7601+130.3000/+30.7601+130.2800/+30.7604+130.2600/+30.7609+130.2400/+30.7616+130.2200/+30.7627+130.2000/+30.7638+130.1800/+30.7646+130.1600/+30.7657+130.1400/+30.7666+130.1200/+30.7690+130.1000/+30.7707+130.0800/+30.7715+130.0600/+30.7719+130.0400/+30.7720+130.0200/+30.7766+130.0000/+30.7776+129.9800/+30.7800+129.9721/+30.7834+129.9600/+30.7887+129.9400/+30.7942+129.9200/+30.8000+129.9069/+30.8070+129.9000/+30.8200+129.8866/+30.8304+129.8800/+30.8374+129.8600/+30.8400+129.8516/+30.8600+129.8512/+30.8800+129.8511/+30.8871+129.8600/+30.8972+129.8800/+30.9000+129.8890/+30.9025+129.9000/+30.9059+129.9200/+30.9072+129.9400/+30.9053+129.9600/+30.9000+129.9729/+30.8991+129.9800/+30.8998+130.0000/+30.8993+130.0200/+30.8985+130.0400/+30.8972+130.0600/+30.9000+130.0662/+30.9200+130.0687/+30.9214+130.0800/ 西 40 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8108+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.7869+130.2800/+30.8000+130.2663/+30.8108+130.2800/ 北西 3 鹿児島県三島村 4630300 2026-09-18T00:00:00+09:00 2026-09-18T03:00:00+09:00 降灰 70 +31.0238+130.0200/+31.0254+130.0400/+31.0200+130.0527/+31.0163+130.0600/+31.0088+130.0800/+31.0000+130.0999/+31.0000+130.1000/+30.9800+130.1198/+30.9798+130.1200/+30.9665+130.1400/+30.9600+130.1501/+30.9555+130.1600/+30.9400+130.1773/+30.9384+130.1800/+30.9200+130.1963/+30.9163+130.2000/+30.9000+130.2163/+30.8959+130.2200/+30.8800+130.2338/+30.8744+130.2400/+30.8600+130.2552/+30.8575+130.2600/+30.8400+130.2779/+30.8399+130.2800/+30.8306+130.3000/+30.8200+130.3106/+30.8173+130.3200/+30.8000+130.3373/+30.7800+130.3336/+30.7664+130.3200/+30.7601+130.3000/+30.7603+130.2800/+30.7689+130.2600/+30.7800+130.2486/+30.7802+130.2400/+30.7806+130.2200/+30.7817+130.2000/+30.7853+130.1800/+30.7981+130.1600/+30.8000+130.1574/+30.8014+130.1400/+30.8037+130.1200/+30.8096+130.1000/+30.8200+130.0830/+30.8207+130.0800/+30.8233+130.0600/+30.8281+130.0400/+30.8378+130.0200/+30.8400+130.0161/+30.8443+130.0000/+30.8492+129.9800/+30.8549+129.9600/+30.8600+129.9476/+30.8641+129.9400/+30.8777+129.9200/+30.8800+129.9146/+30.8881+129.9000/+30.8983+129.8800/+30.9000+129.8739/+30.9043+129.8600/+30.9118+129.8400/+30.9200+129.8258/+30.9400+129.8287/+30.9600+129.8392/+30.9602+129.8400/+30.9600+129.8409/+30.9543+129.8600/+30.9528+129.8800/+30.9495+129.9000/+30.9478+129.9200/+30.9471+129.9400/+30.9450+129.9600/+30.9405+129.9800/+30.9400+129.9821/+30.9373+130.0000/+30.9352+130.0200/+30.9200+130.0373/+30.9190+130.0400/+30.9164+130.0600/+30.9128+130.0800/+30.9200+130.0952/+30.9341+130.0800/+30.9400+130.0692/+30.9460+130.0600/+30.9600+130.0461/+30.9688+130.0400/+30.9800+130.0241/+30.9857+130.0200/+31.0000+130.0091/+31.0200+130.0100/+31.0238+130.0200/ +30.9092+130.1000/+30.9049+130.1200/+30.9000+130.1254/+30.8981+130.1200/+30.8995+130.1000/+30.9000+130.0974/+30.9092+130.1000/ 北西 50 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8075+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.7936+130.2800/+30.8000+130.2723/+30.8075+130.2800/ 北西 3 鹿児島県三島村 4630300 2026-09-18T03:00:00+09:00 2026-09-18T06:00:00+09:00 降灰 70 +30.9812+129.8600/+30.9826+129.8800/+30.9800+129.8906/+30.9778+129.9000/+30.9733+129.9200/+30.9611+129.9400/+30.9600+129.9412/+30.9539+129.9600/+30.9471+129.9800/+30.9423+130.0000/+30.9400+130.0078/+30.9377+130.0200/+30.9264+130.0400/+30.9200+130.0463/+30.9160+130.0600/+30.9099+130.0800/+30.9000+130.0993/+30.8999+130.1000/+30.8939+130.1200/+30.8800+130.1399/+30.8800+130.1400/+30.8783+130.1600/+30.8737+130.1800/+30.8800+130.1875/+30.8875+130.1800/+30.9000+130.1648/+30.9114+130.1600/+30.9200+130.1508/+30.9236+130.1400/+30.9399+130.1200/+30.9400+130.1198/+30.9571+130.1000/+30.9600+130.0969/+30.9800+130.0995/+30.9828+130.1000/+30.9943+130.1200/+30.9850+130.1400/+30.9800+130.1452/+30.9631+130.1600/+30.9600+130.1624/+30.9400+130.1793/+30.9389+130.1800/+30.9200+130.1927/+30.9154+130.2000/+30.9000+130.2159/+30.8970+130.2200/+30.8800+130.2365/+30.8765+130.2400/+30.8600+130.2552/+30.8573+130.2600/+30.8400+130.2774/+30.8398+130.2800/+30.8278+130.3000/+30.8200+130.3078/+30.8171+130.3200/+30.8000+130.3371/+30.7800+130.3332/+30.7667+130.3200/+30.7601+130.3000/+30.7602+130.2800/+30.7624+130.2600/+30.7800+130.2413/+30.7801+130.2400/+30.7804+130.2200/+30.7812+130.2000/+30.7837+130.1800/+30.7886+130.1600/+30.8000+130.1427/+30.8004+130.1400/+30.8028+130.1200/+30.8067+130.1000/+30.8188+130.0800/+30.8200+130.0777/+30.8230+130.0600/+30.8304+130.0400/+30.8400+130.0260/+30.8421+130.0200/+30.8466+130.0000/+30.8539+129.9800/+30.8600+129.9637/+30.8616+129.9600/+30.8711+129.9400/+30.8800+129.9260/+30.8836+129.9200/+30.8955+129.9000/+30.9000+129.8929/+30.9099+129.8800/+30.9200+129.8652/+30.9284+129.8600/+30.9400+129.8508/+30.9500+129.8400/+30.9600+129.8232/+30.9773+129.8400/+30.9800+129.8508/+30.9812+129.8600/ +30.8616+130.2000/+30.8600+130.2011/+30.8599+130.2000/+30.8600+130.1988/+30.8616+130.2000/ 北西 50 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8057+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.7952+130.2800/+30.8000+130.2740/+30.8057+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、１７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。 　１７日１２時から１８日６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１２時から１５時まで　西　　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　１７日１５時から１８時まで　西　　　　　　　７０ｋｍ　　３ｋｍ　　　　　 　１７日１８時から２１時まで　西　　　　　　　７０ｋｍ　　３ｋｍ　　　　　 　１７日２１時から２４時まで　西　　　　　　　４０ｋｍ　　３ｋｍ　　　　　 　１８日００時から０３時まで　北西　　　　　　５０ｋｍ　　３ｋｍ　　　　　 　１８日０３時から０６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。