2026-08-23T05:00:00Z 通常 気象庁本庁 気象庁 2026-08-23T14:00:00+09:00 2026-08-23T15:00:00+09:00 2026-08-24T09:00:00+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、２３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 2026-08-23T15:00:00+09:00 2026-08-23T18:00:00+09:00 降灰 70 +31.0081+129.8000/+31.0020+129.8200/+31.0000+129.8400/+30.9909+129.8600/+30.9862+129.8800/+30.9809+129.9000/+30.9800+129.9035/+30.9757+129.9200/+30.9600+129.9360/+30.9584+129.9400/+30.9524+129.9600/+30.9453+129.9800/+30.9400+129.9930/+30.9383+130.0000/+30.9335+130.0200/+30.9200+130.0330/+30.9154+130.0400/+30.9075+130.0600/+30.9000+130.0706/+30.8983+130.0800/+30.8932+130.1000/+30.8800+130.1192/+30.8799+130.1200/+30.8780+130.1400/+30.8734+130.1600/+30.8600+130.1759/+30.8597+130.1800/+30.8591+130.2000/+30.8561+130.2200/+30.8400+130.2372/+30.8399+130.2400/+30.8399+130.2600/+30.8395+130.2800/+30.8200+130.2995/+30.8200+130.3000/+30.8123+130.3200/+30.8000+130.3323/+30.7800+130.3214/+30.7786+130.3200/+30.7602+130.3000/+30.7604+130.2800/+30.7800+130.2603/+30.7800+130.2600/+30.7801+130.2400/+30.7805+130.2200/+30.7834+130.2000/+30.8000+130.1816/+30.8001+130.1800/+30.8008+130.1600/+30.8022+130.1400/+30.8074+130.1200/+30.8200+130.1030/+30.8204+130.1000/+30.8223+130.0800/+30.8260+130.0600/+30.8344+130.0400/+30.8400+130.0316/+30.8421+130.0200/+30.8444+130.0000/+30.8485+129.9800/+30.8549+129.9600/+30.8600+129.9496/+30.8651+129.9400/+30.8781+129.9200/+30.8800+129.9167/+30.8877+129.9000/+30.8996+129.8800/+30.9000+129.8789/+30.9101+129.8600/+30.9200+129.8488/+30.9296+129.8400/+30.9400+129.8265/+30.9457+129.8200/+30.9600+129.8084/+30.9800+129.8090/+30.9854+129.8000/+31.0000+129.7860/+31.0081+129.8000/ 西 50 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8090+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.7910+130.2800/+30.8000+130.2685/+30.8090+130.2800/ 北西 3 鹿児島県三島村 4630300 2026-08-23T18:00:00+09:00 2026-08-23T21:00:00+09:00 降灰 70 +31.0063+129.7200/+31.0140+129.7400/+31.0139+129.7600/+31.0096+129.7800/+31.0057+129.8000/+31.0000+129.8089/+30.9925+129.8200/+30.9885+129.8400/+30.9832+129.8600/+30.9800+129.8716/+30.9776+129.8800/+30.9680+129.9000/+30.9600+129.9101/+30.9571+129.9200/+30.9514+129.9400/+30.9458+129.9600/+30.9400+129.9745/+30.9388+129.9800/+30.9343+130.0000/+30.9292+130.0200/+30.9200+130.0287/+30.9100+130.0400/+30.9000+130.0520/+30.8985+130.0600/+30.8956+130.0800/+30.8855+130.1000/+30.8800+130.1061/+30.8789+130.1200/+30.8774+130.1400/+30.8687+130.1600/+30.8600+130.1692/+30.8595+130.1800/+30.8590+130.2000/+30.8547+130.2200/+30.8400+130.2349/+30.8399+130.2400/+30.8399+130.2600/+30.8395+130.2800/+30.8200+130.2995/+30.8200+130.3000/+30.8100+130.3200/+30.8000+130.3300/+30.7830+130.3200/+30.7800+130.3200/+30.7602+130.3000/+30.7605+130.2800/+30.7800+130.2604/+30.7800+130.2600/+30.7801+130.2400/+30.7805+130.2200/+30.7843+130.2000/+30.8000+130.1833/+30.8003+130.1800/+30.8008+130.1600/+30.8026+130.1400/+30.8106+130.1200/+30.8200+130.1091/+30.8210+130.1000/+30.8226+130.0800/+30.8267+130.0600/+30.8400+130.0400/+30.8400+130.0399/+30.8423+130.0200/+30.8444+130.0000/+30.8476+129.9800/+30.8538+129.9600/+30.8600+129.9485/+30.8640+129.9400/+30.8725+129.9200/+30.8800+129.9030/+30.8813+129.9000/+30.8898+129.8800/+30.8958+129.8600/+30.9000+129.8507/+30.9069+129.8400/+30.9200+129.8214/+30.9213+129.8200/+30.9305+129.8000/+30.9400+129.7815/+30.9419+129.7800/+30.9600+129.7647/+30.9675+129.7600/+30.9800+129.7447/+30.9824+129.7400/+30.9950+129.7200/+31.0000+129.7111/+31.0063+129.7200/ 西 60 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/+30.7812+130.3000/+30.7894+130.2800/+30.8000+130.2665/+30.8106+130.2800/ 北西 3 鹿児島県三島村 4630300 2026-08-23T21:00:00+09:00 2026-08-24T00:00:00+09:00 降灰 70 +30.9602+129.7600/+30.9660+129.7800/+30.9694+129.8000/+30.9664+129.8200/+30.9600+129.8376/+30.9594+129.8400/+30.9546+129.8600/+30.9518+129.8800/+30.9487+129.9000/+30.9455+129.9200/+30.9400+129.9293/+30.9350+129.9400/+30.9310+129.9600/+30.9263+129.9800/+30.9200+129.9971/+30.9192+130.0000/+30.9000+130.0180/+30.8994+130.0200/+30.8964+130.0400/+30.8926+130.0600/+30.8809+130.0800/+30.8800+130.0811/+30.8783+130.1000/+30.8761+130.1200/+30.8675+130.1400/+30.8600+130.1490/+30.8594+130.1600/+30.8588+130.1800/+30.8566+130.2000/+30.8400+130.2187/+30.8399+130.2200/+30.8398+130.2400/+30.8398+130.2600/+30.8388+130.2800/+30.8200+130.2988/+30.8200+130.3000/+30.8107+130.3200/+30.8000+130.3307/+30.7810+130.3200/+30.7800+130.3200/+30.7602+130.3000/+30.7602+130.2800/+30.7642+130.2600/+30.7800+130.2440/+30.7801+130.2400/+30.7803+130.2200/+30.7807+130.2000/+30.7822+130.1800/+30.7871+130.1600/+30.7995+130.1400/+30.8000+130.1392/+30.8009+130.1200/+30.8023+130.1000/+30.8055+130.0800/+30.8115+130.0600/+30.8200+130.0430/+30.8205+130.0400/+30.8236+130.0200/+30.8294+130.0000/+30.8307+129.9800/+30.8400+129.9651/+30.8412+129.9600/+30.8461+129.9400/+30.8531+129.9200/+30.8600+129.9005/+30.8602+129.9000/+30.8638+129.8800/+30.8726+129.8600/+30.8800+129.8495/+30.8852+129.8400/+30.8934+129.8200/+30.9000+129.8058/+30.9085+129.8000/+30.9200+129.7879/+30.9261+129.7800/+30.9397+129.7600/+30.9400+129.7595/+30.9600+129.7595/+30.9602+129.7600/ 西 60 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8098+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.7902+130.2800/+30.8000+130.2677/+30.8098+130.2800/ 北西 3 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 +30.9234+129.7800/+30.9291+129.8000/+30.9376+129.8200/+30.9376+129.8400/+30.9364+129.8600/+30.9352+129.8800/+30.9288+129.9000/+30.9221+129.9200/+30.9200+129.9312/+30.9194+129.9400/+30.9164+129.9600/+30.9088+129.9800/+30.9000+129.9951/+30.8993+130.0000/+30.8931+130.0200/+30.8877+130.0400/+30.8800+130.0520/+30.8791+130.0600/+30.8771+130.0800/+30.8739+130.1000/+30.8616+130.1200/+30.8600+130.1219/+30.8590+130.1400/+30.8583+130.1600/+30.8559+130.1800/+30.8404+130.2000/+30.8400+130.2004/+30.8398+130.2200/+30.8397+130.2400/+30.8395+130.2600/+30.8356+130.2800/+30.8200+130.2956/+30.8200+130.3000/+30.8128+130.3200/+30.8000+130.3328/+30.7800+130.3242/+30.7758+130.3200/+30.7601+130.3000/+30.7602+130.2800/+30.7613+130.2600/+30.7797+130.2400/+30.7800+130.2397/+30.7802+130.2200/+30.7805+130.2000/+30.7811+130.1800/+30.7834+130.1600/+30.7889+130.1400/+30.8000+130.1233/+30.8003+130.1200/+30.8013+130.1000/+30.8036+130.0800/+30.8077+130.0600/+30.8171+130.0400/+30.8200+130.0331/+30.8211+130.0200/+30.8247+130.0000/+30.8205+129.9800/+30.8265+129.9600/+30.8375+129.9400/+30.8400+129.9360/+30.8434+129.9200/+30.8472+129.9000/+30.8506+129.8800/+30.8540+129.8600/+30.8585+129.8400/+30.8600+129.8339/+30.8645+129.8200/+30.8753+129.8000/+30.8800+129.7893/+30.8847+129.7800/+30.8937+129.7600/+30.9000+129.7480/+30.9123+129.7600/+30.9200+129.7721/+30.9234+129.7800/ 西 50 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8092+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.7908+130.2800/+30.8000+130.2685/+30.8092+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 +30.8657+129.8200/+30.8715+129.8400/+30.8731+129.8600/+30.8744+129.8800/+30.8763+129.9000/+30.8742+129.9200/+30.8733+129.9400/+30.8729+129.9600/+30.8728+129.9800/+30.8719+130.0000/+30.8600+130.0169/+30.8592+130.0200/+30.8581+130.0400/+30.8572+130.0600/+30.8560+130.0800/+30.8531+130.1000/+30.8480+130.1200/+30.8400+130.1382/+30.8399+130.1400/+30.8394+130.1600/+30.8392+130.1800/+30.8391+130.2000/+30.8389+130.2200/+30.8382+130.2400/+30.8330+130.2600/+30.8200+130.2733/+30.8200+130.2800/+30.8200+130.3000/+30.8135+130.3200/+30.8000+130.3335/+30.7800+130.3267/+30.7733+130.3200/+30.7601+130.3000/+30.7601+130.2800/+30.7602+130.2600/+30.7605+130.2400/+30.7612+130.2200/+30.7620+130.2000/+30.7633+130.1800/+30.7651+130.1600/+30.7669+130.1400/+30.7703+130.1200/+30.7725+130.1000/+30.7761+130.0800/+30.7800+130.0601/+30.7800+130.0600/+30.7806+130.0400/+30.7815+130.0200/+30.7820+130.0000/+30.7816+129.9800/+30.7828+129.9600/+30.7847+129.9400/+30.7880+129.9200/+30.7927+129.9000/+30.7978+129.8800/+30.8000+129.8712/+30.8030+129.8600/+30.8085+129.8400/+30.8165+129.8200/+30.8200+129.8129/+30.8274+129.8000/+30.8400+129.7846/+30.8557+129.8000/+30.8600+129.8072/+30.8657+129.8200/ 西 50 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8122+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.7828+130.2800/+30.8000+130.2653/+30.8122+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 +30.8213+129.8800/+30.8200+129.8850/+30.8172+129.9000/+30.8198+129.9200/+30.8200+129.9211/+30.8252+129.9400/+30.8286+129.9600/+30.8309+129.9800/+30.8200+129.9955/+30.8190+130.0000/+30.8194+130.0200/+30.8196+130.0400/+30.8198+130.0600/+30.8199+130.0800/+30.8200+130.1000/+30.8200+130.1003/+30.8238+130.1200/+30.8231+130.1400/+30.8200+130.1583/+30.8200+130.1600/+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/+30.8073+130.3200/+30.8000+130.3273/+30.7844+130.3200/+30.7800+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/+30.7606+130.1800/+30.7607+130.1600/+30.7608+130.1400/+30.7608+130.1200/+30.7606+130.1000/+30.7603+130.0800/+30.7600+130.0686/+30.7576+130.0600/+30.7565+130.0400/+30.7516+130.0200/+30.7481+130.0000/+30.7410+129.9800/+30.7409+129.9600/+30.7410+129.9400/+30.7415+129.9200/+30.7400+129.9015/+30.7398+129.9000/+30.7335+129.8800/+30.7331+129.8600/+30.7325+129.8400/+30.7316+129.8200/+30.7306+129.8000/+30.7280+129.7800/+30.7321+129.7600/+30.7355+129.7400/+30.7372+129.7200/+30.7394+129.7000/+30.7400+129.6981/+30.7600+129.6939/+30.7625+129.7000/+30.7682+129.7200/+30.7748+129.7400/+30.7800+129.7498/+30.7854+129.7600/+30.7980+129.7800/+30.8000+129.7855/+30.8028+129.8000/+30.8072+129.8200/+30.8107+129.8400/+30.8171+129.8600/+30.8200+129.8730/+30.8213+129.8800/ 西 60 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8138+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.7807+130.2800/+30.8000+130.2634/+30.8138+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、２３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。 　２３日１５時から２４日９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 　２３日１５時から１８時まで　西　　　　　　　５０ｋｍ　　３ｋｍ　　　　　 　２３日１８時から２１時まで　西　　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　２３日２１時から２４時まで　西　　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　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　　　　　　　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。