2026-08-23T14:00:00Z 通常 気象庁本庁 気象庁 2026-08-23T23:00:00+09:00 2026-08-24T00:00:00+09:00 2026-08-24T18:00:00+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 2026-08-24T00:00:00+09:00 2026-08-24T03:00:00+09:00 降灰 70 +30.9688+129.7800/+30.9736+129.8000/+30.9744+129.8200/+30.9720+129.8400/+30.9627+129.8600/+30.9600+129.8645/+30.9559+129.8800/+30.9516+129.9000/+30.9477+129.9200/+30.9400+129.9376/+30.9390+129.9400/+30.9339+129.9600/+30.9296+129.9800/+30.9235+130.0000/+30.9200+130.0080/+30.9088+130.0200/+30.9000+130.0253/+30.8977+130.0400/+30.8938+130.0600/+30.8808+130.0800/+30.8800+130.0809/+30.8784+130.1000/+30.8761+130.1200/+30.8663+130.1400/+30.8600+130.1473/+30.8594+130.1600/+30.8588+130.1800/+30.8559+130.2000/+30.8400+130.2176/+30.8399+130.2200/+30.8398+130.2400/+30.8398+130.2600/+30.8387+130.2800/+30.8200+130.2987/+30.8200+130.3000/+30.8124+130.3200/+30.8000+130.3324/+30.7800+130.3224/+30.7776+130.3200/+30.7602+130.3000/+30.7602+130.2800/+30.7636+130.2600/+30.7800+130.2429/+30.7801+130.2400/+30.7803+130.2200/+30.7809+130.2000/+30.7832+130.1800/+30.7922+130.1600/+30.8000+130.1503/+30.8007+130.1400/+30.8019+130.1200/+30.8050+130.1000/+30.8148+130.0800/+30.8200+130.0721/+30.8215+130.0600/+30.8246+130.0400/+30.8294+130.0200/+30.8400+130.0011/+30.8403+130.0000/+30.8424+129.9800/+30.8461+129.9600/+30.8534+129.9400/+30.8600+129.9286/+30.8659+129.9200/+30.8715+129.9000/+30.8800+129.8817/+30.8808+129.8800/+30.8878+129.8600/+30.8970+129.8400/+30.9000+129.8316/+30.9051+129.8200/+30.9200+129.8037/+30.9254+129.8000/+30.9354+129.7800/+30.9400+129.7719/+30.9600+129.7645/+30.9688+129.7800/ 西 50 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8096+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.7904+130.2800/+30.8000+130.2679/+30.8096+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 +30.8832+129.8000/+30.8827+129.8200/+30.8823+129.8400/+30.8800+129.8489/+30.8772+129.8600/+30.8741+129.8800/+30.8753+129.9000/+30.8750+129.9200/+30.8728+129.9400/+30.8711+129.9600/+30.8696+129.9800/+30.8682+130.0000/+30.8600+130.0091/+30.8561+130.0200/+30.8542+130.0400/+30.8510+130.0600/+30.8470+130.0800/+30.8400+130.0945/+30.8397+130.1000/+30.8391+130.1200/+30.8387+130.1400/+30.8386+130.1600/+30.8385+130.1800/+30.8380+130.2000/+30.8376+130.2200/+30.8358+130.2400/+30.8216+130.2600/+30.8200+130.2617/+30.8200+130.2800/+30.8200+130.3000/+30.8142+130.3200/+30.8000+130.3342/+30.7800+130.3280/+30.7720+130.3200/+30.7601+130.3000/+30.7601+130.2800/+30.7601+130.2600/+30.7603+130.2400/+30.7605+130.2200/+30.7608+130.2000/+30.7611+130.1800/+30.7614+130.1600/+30.7623+130.1400/+30.7634+130.1200/+30.7648+130.1000/+30.7664+130.0800/+30.7699+130.0600/+30.7712+130.0400/+30.7764+130.0200/+30.7800+130.0107/+30.7817+130.0000/+30.7822+129.9800/+30.7843+129.9600/+30.7875+129.9400/+30.7924+129.9200/+30.7982+129.9000/+30.8000+129.8956/+30.8082+129.8800/+30.8128+129.8600/+30.8178+129.8400/+30.8200+129.8321/+30.8237+129.8200/+30.8312+129.8000/+30.8400+129.7818/+30.8468+129.7800/+30.8600+129.7724/+30.8636+129.7800/+30.8800+129.7947/+30.8832+129.8000/ 西 50 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8127+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7808+130.3000/+30.7851+130.2800/+30.8000+130.2650/+30.8127+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 +30.8039+130.1200/+30.8077+130.1400/+30.8134+130.1600/+30.8166+130.1800/+30.8184+130.2000/+30.8194+130.2200/+30.8198+130.2400/+30.8199+130.2600/+30.8200+130.2800/+30.8199+130.3000/+30.8109+130.3200/+30.8000+130.3309/+30.7800+130.3244/+30.7756+130.3200/+30.7601+130.3000/+30.7600+130.2800/+30.7601+130.2600/+30.7601+130.2400/+30.7600+130.2353/+30.7468+130.2200/+30.7423+130.2000/+30.7414+130.1800/+30.7411+130.1600/+30.7409+130.1400/+30.7404+130.1200/+30.7400+130.1076/+30.7362+130.1000/+30.7296+130.0800/+30.7267+130.0600/+30.7242+130.0400/+30.7233+130.0200/+30.7202+130.0000/+30.7200+129.9955/+30.7151+129.9800/+30.7104+129.9600/+30.7086+129.9400/+30.7084+129.9200/+30.7006+129.9000/+30.7002+129.8800/+30.7000+129.8723/+30.6996+129.8600/+30.6989+129.8400/+30.6997+129.8200/+30.7000+129.8114/+30.7005+129.8000/+30.7128+129.7800/+30.7200+129.7677/+30.7263+129.7600/+30.7400+129.7430/+30.7600+129.7559/+30.7616+129.7600/+30.7701+129.7800/+30.7768+129.8000/+30.7794+129.8200/+30.7800+129.8248/+30.7816+129.8400/+30.7853+129.8600/+30.7880+129.8800/+30.7878+129.9000/+30.7915+129.9200/+30.7942+129.9400/+30.7972+129.9600/+30.8000+129.9800/+30.7947+130.0000/+30.7965+130.0200/+30.7975+130.0400/+30.7981+130.0600/+30.7989+130.0800/+30.7997+130.1000/+30.8000+130.1101/+30.8039+130.1200/ 西 50 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8127+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3077/+30.7723+130.3000/+30.7725+130.2800/+30.7800+130.2690/+30.8000+130.2650/+30.8127+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 +30.8215+129.7800/+30.8201+129.8000/+30.8213+129.8200/+30.8223+129.8400/+30.8233+129.8600/+30.8242+129.8800/+30.8200+129.8916/+30.8177+129.9000/+30.8179+129.9200/+30.8199+129.9400/+30.8200+129.9407/+30.8228+129.9600/+30.8248+129.9800/+30.8200+129.9853/+30.8154+130.0000/+30.8156+130.0200/+30.8163+130.0400/+30.8164+130.0600/+30.8170+130.0800/+30.8173+130.1000/+30.8178+130.1200/+30.8183+130.1400/+30.8188+130.1600/+30.8192+130.1800/+30.8195+130.2000/+30.8197+130.2200/+30.8199+130.2400/+30.8199+130.2600/+30.8200+130.2800/+30.8199+130.3000/+30.8003+130.3200/+30.8000+130.3203/+30.7992+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/+30.7600+130.2092/+30.7529+130.2000/+30.7463+130.1800/+30.7445+130.1600/+30.7433+130.1400/+30.7429+130.1200/+30.7427+130.1000/+30.7424+130.0800/+30.7426+130.0600/+30.7420+130.0400/+30.7420+130.0200/+30.7418+130.0000/+30.7400+129.9941/+30.7286+129.9800/+30.7299+129.9600/+30.7308+129.9400/+30.7311+129.9200/+30.7315+129.9000/+30.7300+129.8800/+30.7317+129.8600/+30.7338+129.8400/+30.7354+129.8200/+30.7373+129.8000/+30.7361+129.7800/+30.7396+129.7600/+30.7400+129.7580/+30.7459+129.7400/+30.7531+129.7200/+30.7600+129.7035/+30.7629+129.7000/+30.7800+129.6840/+30.7839+129.6800/+30.8000+129.6614/+30.8062+129.6800/+30.8114+129.7000/+30.8145+129.7200/+30.8170+129.7400/+30.8194+129.7600/+30.8200+129.7657/+30.8215+129.7800/ 西 60 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/+30.7800+130.2847/+30.7753+130.2800/+30.7800+130.2705/+30.8000+130.2619/+30.8145+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 +30.8208+129.6400/+30.8223+129.6600/+30.8225+129.6800/+30.8228+129.7000/+30.8257+129.7200/+30.8279+129.7400/+30.8291+129.7600/+30.8295+129.7800/+30.8251+129.8000/+30.8260+129.8200/+30.8267+129.8400/+30.8274+129.8600/+30.8280+129.8800/+30.8217+129.9000/+30.8249+129.9200/+30.8278+129.9400/+30.8291+129.9600/+30.8293+129.9800/+30.8200+129.9902/+30.8175+130.0000/+30.8177+130.0200/+30.8181+130.0400/+30.8185+130.0600/+30.8187+130.0800/+30.8188+130.1000/+30.8191+130.1200/+30.8193+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/+30.8200+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/+30.7602+130.1600/+30.7601+130.1400/+30.7600+130.1275/+30.7578+130.1200/+30.7524+130.1000/+30.7511+130.0800/+30.7490+130.0600/+30.7474+130.0400/+30.7474+130.0200/+30.7476+130.0000/+30.7406+129.9800/+30.7404+129.9600/+30.7403+129.9400/+30.7401+129.9200/+30.7402+129.9000/+30.7400+129.8994/+30.7323+129.8800/+30.7330+129.8600/+30.7338+129.8400/+30.7353+129.8200/+30.7372+129.8000/+30.7352+129.7800/+30.7374+129.7600/+30.7400+129.7454/+30.7412+129.7400/+30.7476+129.7200/+30.7555+129.7000/+30.7600+129.6843/+30.7612+129.6800/+30.7664+129.6600/+30.7706+129.6400/+30.7751+129.6200/+30.7800+129.6019/+30.7806+129.6000/+30.7885+129.5800/+30.7983+129.5600/+30.8000+129.5557/+30.8013+129.5600/+30.8084+129.5800/+30.8138+129.6000/+30.8177+129.6200/+30.8200+129.6343/+30.8208+129.6400/ 西 70 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8143+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.7800+130.2804/+30.7796+130.2800/+30.7800+130.2792/+30.8000+130.2617/+30.8143+130.2800/ 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 +30.8612+129.7200/+30.8624+129.7400/+30.8625+129.7600/+30.8614+129.7800/+30.8600+129.7902/+30.8593+129.8000/+30.8568+129.8200/+30.8537+129.8400/+30.8535+129.8600/+30.8534+129.8800/+30.8407+129.9000/+30.8400+129.9108/+30.8399+129.9200/+30.8393+129.9400/+30.8386+129.9600/+30.8379+129.9800/+30.8350+130.0000/+30.8342+130.0200/+30.8333+130.0400/+30.8318+130.0600/+30.8298+130.0800/+30.8283+130.1000/+30.8257+130.1200/+30.8217+130.1400/+30.8200+130.1441/+30.8199+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/+30.7602+130.2000/+30.7601+130.1800/+30.7600+130.1720/+30.7562+130.1600/+30.7535+130.1400/+30.7530+130.1200/+30.7511+130.1000/+30.7500+130.0800/+30.7513+130.0600/+30.7536+130.0400/+30.7552+130.0200/+30.7600+130.0074/+30.7607+130.0000/+30.7600+129.9976/+30.7470+129.9800/+30.7484+129.9600/+30.7506+129.9400/+30.7540+129.9200/+30.7575+129.9000/+30.7600+129.8941/+30.7632+129.8800/+30.7647+129.8600/+30.7669+129.8400/+30.7671+129.8200/+30.7673+129.8000/+30.7657+129.7800/+30.7684+129.7600/+30.7711+129.7400/+30.7738+129.7200/+30.7772+129.7000/+30.7800+129.6832/+30.7806+129.6800/+30.7847+129.6600/+30.7895+129.6400/+30.7948+129.6200/+30.8000+129.6047/+30.8096+129.6000/+30.8200+129.5917/+30.8300+129.5800/+30.8400+129.5619/+30.8468+129.5800/+30.8520+129.6000/+30.8552+129.6200/+30.8574+129.6400/+30.8587+129.6600/+30.8594+129.6800/+30.8599+129.7000/+30.8600+129.7012/+30.8612+129.7200/ 西 70 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8143+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.7824+130.2800/+30.8000+130.2620/+30.8143+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、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。 　２４日０時から２４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 　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　　　　　 　２４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。