2026-08-25T05:00:00Z 通常 気象庁本庁 気象庁 2026-08-25T14:00:00+09:00 2026-08-25T15:00:00+09:00 2026-08-26T09:00:00+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、２５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 2026-08-25T15:00:00+09:00 2026-08-25T18:00:00+09:00 降灰 70 +30.8032+129.8400/+30.8091+129.8600/+30.8134+129.8800/+30.8108+129.9000/+30.8120+129.9200/+30.8139+129.9400/+30.8154+129.9600/+30.8167+129.9800/+30.8100+130.0000/+30.8122+130.0200/+30.8136+130.0400/+30.8148+130.0600/+30.8160+130.0800/+30.8174+130.1000/+30.8181+130.1200/+30.8188+130.1400/+30.8192+130.1600/+30.8195+130.1800/+30.8198+130.2000/+30.8198+130.2200/+30.8199+130.2400/+30.8199+130.2600/+30.8199+130.2800/+30.8198+130.3000/+30.8000+130.3199/+30.7800+130.3197/+30.7604+130.3000/+30.7601+130.2800/+30.7601+130.2600/+30.7601+130.2400/+30.7600+130.2353/+30.7457+130.2200/+30.7419+130.2000/+30.7412+130.1800/+30.7409+130.1600/+30.7408+130.1400/+30.7405+130.1200/+30.7400+130.1050/+30.7366+130.1000/+30.7294+130.0800/+30.7256+130.0600/+30.7235+130.0400/+30.7225+130.0200/+30.7200+130.0043/+30.7149+130.0000/+30.7097+129.9800/+30.7073+129.9600/+30.7059+129.9400/+30.7053+129.9200/+30.7000+129.9061/+30.6973+129.9000/+30.6962+129.8800/+30.6962+129.8600/+30.6962+129.8400/+30.6959+129.8200/+30.6955+129.8000/+30.6973+129.7800/+30.6968+129.7600/+30.6971+129.7400/+30.6981+129.7200/+30.6992+129.7000/+30.6995+129.6800/+30.6997+129.6600/+30.7000+129.6497/+30.7002+129.6400/+30.7010+129.6200/+30.7021+129.6000/+30.7066+129.5800/+30.7132+129.5600/+30.7191+129.5400/+30.7200+129.5343/+30.7239+129.5200/+30.7400+129.5046/+30.7479+129.5200/+30.7599+129.5400/+30.7600+129.5402/+30.7650+129.5600/+30.7699+129.5800/+30.7738+129.6000/+30.7775+129.6200/+30.7800+129.6355/+30.7807+129.6400/+30.7834+129.6600/+30.7860+129.6800/+30.7884+129.7000/+30.7904+129.7200/+30.7924+129.7400/+30.7951+129.7600/+30.7983+129.7800/+30.7980+129.8000/+30.7996+129.8200/+30.8000+129.8253/+30.8032+129.8400/ 西 80 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8089+130.2600/+30.8173+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.7800+130.2907/+30.7693+130.2800/+30.7792+130.2600/+30.7800+130.2585/+30.8000+130.2450/+30.8089+130.2600/ 西 5 鹿児島県三島村 4630300 2026-08-25T18:00:00+09:00 2026-08-25T21:00:00+09:00 降灰 70 +30.8602+129.6400/+30.8613+129.6600/+30.8621+129.6800/+30.8629+129.7000/+30.8643+129.7200/+30.8655+129.7400/+30.8663+129.7600/+30.8668+129.7800/+30.8630+129.8000/+30.8639+129.8200/+30.8647+129.8400/+30.8654+129.8600/+30.8659+129.8800/+30.8610+129.9000/+30.8618+129.9200/+30.8611+129.9400/+30.8608+129.9600/+30.8608+129.9800/+30.8602+130.0000/+30.8600+130.0002/+30.8504+130.0200/+30.8458+130.0400/+30.8400+130.0567/+30.8398+130.0600/+30.8393+130.0800/+30.8391+130.1000/+30.8388+130.1200/+30.8387+130.1400/+30.8387+130.1600/+30.8385+130.1800/+30.8382+130.2000/+30.8374+130.2200/+30.8359+130.2400/+30.8355+130.2600/+30.8328+130.2800/+30.8200+130.2931/+30.8198+130.3000/+30.8000+130.3198/+30.7800+130.3195/+30.7605+130.3000/+30.7602+130.2800/+30.7602+130.2600/+30.7602+130.2400/+30.7602+130.2200/+30.7603+130.2000/+30.7603+130.1800/+30.7603+130.1600/+30.7602+130.1400/+30.7600+130.1297/+30.7561+130.1200/+30.7529+130.1000/+30.7529+130.0800/+30.7516+130.0600/+30.7492+130.0400/+30.7483+130.0200/+30.7482+130.0000/+30.7418+129.9800/+30.7415+129.9600/+30.7416+129.9400/+30.7421+129.9200/+30.7437+129.9000/+30.7422+129.8800/+30.7440+129.8600/+30.7461+129.8400/+30.7468+129.8200/+30.7476+129.8000/+30.7480+129.7800/+30.7497+129.7600/+30.7527+129.7400/+30.7575+129.7200/+30.7600+129.7111/+30.7627+129.7000/+30.7657+129.6800/+30.7689+129.6600/+30.7721+129.6400/+30.7756+129.6200/+30.7793+129.6000/+30.7800+129.5967/+30.7841+129.5800/+30.7906+129.5600/+30.7964+129.5400/+30.8000+129.5200/+30.8000+129.5198/+30.8001+129.5200/+30.8081+129.5400/+30.8200+129.5552/+30.8237+129.5600/+30.8400+129.5728/+30.8447+129.5800/+30.8560+129.6000/+30.8583+129.6200/+30.8600+129.6364/+30.8602+129.6400/ 西 70 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8160+130.2600/+30.8173+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.7800+130.2828/+30.7772+130.2800/+30.7800+130.2729/+30.7862+130.2600/+30.8000+130.2455/+30.8160+130.2600/ 西 4 鹿児島県三島村 4630300 2026-08-25T21:00:00+09:00 2026-08-26T00:00:00+09:00 降灰 70 +30.9236+129.5800/+30.9292+129.6000/+30.9335+129.6200/+30.9356+129.6400/+30.9353+129.6600/+30.9338+129.6800/+30.9328+129.7000/+30.9321+129.7200/+30.9316+129.7400/+30.9315+129.7600/+30.9317+129.7800/+30.9319+129.8000/+30.9260+129.8200/+30.9227+129.8400/+30.9200+129.8477/+30.9183+129.8600/+30.9158+129.8800/+30.9138+129.9000/+30.9077+129.9200/+30.9017+129.9400/+30.9000+129.9444/+30.8985+129.9600/+30.8967+129.9800/+30.8951+130.0000/+30.8809+130.0200/+30.8800+130.0220/+30.8788+130.0400/+30.8778+130.0600/+30.8754+130.0800/+30.8710+130.1000/+30.8612+130.1200/+30.8600+130.1216/+30.8591+130.1400/+30.8584+130.1600/+30.8570+130.1800/+30.8500+130.2000/+30.8400+130.2113/+30.8398+130.2200/+30.8397+130.2400/+30.8394+130.2600/+30.8388+130.2800/+30.8219+130.3000/+30.8200+130.3019/+30.8000+130.3198/+30.7800+130.3193/+30.7607+130.3000/+30.7604+130.2800/+30.7606+130.2600/+30.7613+130.2400/+30.7630+130.2200/+30.7664+130.2000/+30.7736+130.1800/+30.7800+130.1634/+30.7800+130.1600/+30.7803+130.1400/+30.7806+130.1200/+30.7811+130.1000/+30.7815+130.0800/+30.7824+130.0600/+30.7829+130.0400/+30.7835+130.0200/+30.7850+130.0000/+30.7840+129.9800/+30.7854+129.9600/+30.7876+129.9400/+30.7907+129.9200/+30.7953+129.9000/+30.8000+129.8878/+30.8026+129.8800/+30.8054+129.8600/+30.8088+129.8400/+30.8110+129.8200/+30.8141+129.8000/+30.8168+129.7800/+30.8200+129.7661/+30.8216+129.7600/+30.8265+129.7400/+30.8310+129.7200/+30.8369+129.7000/+30.8400+129.6900/+30.8445+129.6800/+30.8539+129.6600/+30.8600+129.6462/+30.8630+129.6400/+30.8724+129.6200/+30.8800+129.6057/+30.8833+129.6000/+30.8913+129.5800/+30.8993+129.5600/+30.9000+129.5576/+30.9043+129.5600/+30.9200+129.5733/+30.9236+129.5800/ 西 70 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8237+130.2600/+30.8303+130.2800/+30.8200+130.2903/+30.8188+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.7829+130.2800/+30.7921+130.2600/+30.8000+130.2460/+30.8200+130.2522/+30.8237+130.2600/ 北西 5 鹿児島県三島村 4630300 2026-08-26T00:00:00+09:00 2026-08-26T03:00:00+09:00 降灰 70 +31.0001+129.5800/+31.0002+129.6000/+31.0000+129.6008/+30.9866+129.6200/+30.9821+129.6400/+30.9810+129.6600/+30.9811+129.6800/+30.9811+129.7000/+30.9800+129.7128/+30.9794+129.7200/+30.9779+129.7400/+30.9758+129.7600/+30.9727+129.7800/+30.9694+129.8000/+30.9600+129.8121/+30.9565+129.8200/+30.9533+129.8400/+30.9507+129.8600/+30.9482+129.8800/+30.9456+129.9000/+30.9426+129.9200/+30.9400+129.9238/+30.9317+129.9400/+30.9284+129.9600/+30.9263+129.9800/+30.9201+130.0000/+30.9200+130.0004/+30.9038+130.0200/+30.9000+130.0222/+30.8979+130.0400/+30.8949+130.0600/+30.8888+130.0800/+30.8800+130.0921/+30.8792+130.1000/+30.8778+130.1200/+30.8755+130.1400/+30.8604+130.1600/+30.8600+130.1604/+30.8593+130.1800/+30.8583+130.2000/+30.8515+130.2200/+30.8400+130.2324/+30.8399+130.2400/+30.8397+130.2600/+30.8394+130.2800/+30.8330+130.3000/+30.8200+130.3130/+30.8000+130.3199/+30.7800+130.3192/+30.7608+130.3000/+30.7606+130.2800/+30.7621+130.2600/+30.7800+130.2403/+30.7800+130.2400/+30.7801+130.2200/+30.7803+130.2000/+30.7806+130.1800/+30.7812+130.1600/+30.7825+130.1400/+30.7854+130.1200/+30.7911+130.1000/+30.8000+130.0833/+30.8002+130.0800/+30.8008+130.0600/+30.8024+130.0400/+30.8035+130.0200/+30.8058+130.0000/+30.8040+129.9800/+30.8077+129.9600/+30.8125+129.9400/+30.8200+129.9205/+30.8202+129.9200/+30.8240+129.9000/+30.8245+129.8800/+30.8317+129.8600/+30.8400+129.8455/+30.8420+129.8400/+30.8464+129.8200/+30.8509+129.8000/+30.8547+129.7800/+30.8600+129.7655/+30.8617+129.7600/+30.8678+129.7400/+30.8746+129.7200/+30.8800+129.7070/+30.8833+129.7000/+30.8927+129.6800/+30.9000+129.6682/+30.9071+129.6600/+30.9189+129.6400/+30.9200+129.6372/+30.9266+129.6200/+30.9344+129.6000/+30.9400+129.5883/+30.9498+129.5800/+30.9600+129.5702/+30.9800+129.5703/+31.0000+129.5735/+31.0001+129.5800/ 西 70 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8249+130.2600/+30.8303+130.2800/+30.8200+130.2903/+30.8188+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.7834+130.2800/+30.7936+130.2600/+30.8000+130.2500/+30.8200+130.2511/+30.8249+130.2600/ 北西 5 鹿児島県三島村 4630300 2026-08-26T03:00:00+09:00 2026-08-26T06:00:00+09:00 降灰 70 +31.0020+129.5600/+31.0053+129.5800/+31.0075+129.6000/+31.0078+129.6200/+31.0080+129.6400/+31.0065+129.6600/+31.0030+129.6800/+31.0000+129.6961/+30.9992+129.7000/+30.9956+129.7200/+30.9934+129.7400/+30.9900+129.7600/+30.9857+129.7800/+30.9822+129.8000/+30.9800+129.8140/+30.9788+129.8200/+30.9696+129.8400/+30.9600+129.8585/+30.9596+129.8600/+30.9553+129.8800/+30.9529+129.9000/+30.9508+129.9200/+30.9434+129.9400/+30.9400+129.9493/+30.9377+129.9600/+30.9330+129.9800/+30.9287+130.0000/+30.9227+130.0200/+30.9200+130.0227/+30.9029+130.0400/+30.9000+130.0435/+30.8977+130.0600/+30.8954+130.0800/+30.8848+130.1000/+30.8800+130.1055/+30.8788+130.1200/+30.8771+130.1400/+30.8690+130.1600/+30.8600+130.1697/+30.8595+130.1800/+30.8589+130.2000/+30.8551+130.2200/+30.8400+130.2361/+30.8399+130.2400/+30.8398+130.2600/+30.8394+130.2800/+30.8330+130.3000/+30.8200+130.3130/+30.8000+130.3199/+30.7800+130.3192/+30.7608+130.3000/+30.7607+130.2800/+30.7643+130.2600/+30.7800+130.2437/+30.7801+130.2400/+30.7802+130.2200/+30.7804+130.2000/+30.7809+130.1800/+30.7823+130.1600/+30.7855+130.1400/+30.7939+130.1200/+30.8000+130.1113/+30.8008+130.1000/+30.8019+130.0800/+30.8034+130.0600/+30.8070+130.0400/+30.8107+130.0200/+30.8197+130.0000/+30.8120+129.9800/+30.8177+129.9600/+30.8200+129.9531/+30.8232+129.9400/+30.8302+129.9200/+30.8400+129.9024/+30.8407+129.9000/+30.8457+129.8800/+30.8502+129.8600/+30.8567+129.8400/+30.8600+129.8220/+30.8604+129.8200/+30.8655+129.8000/+30.8707+129.7800/+30.8781+129.7600/+30.8800+129.7548/+30.8865+129.7400/+30.8946+129.7200/+30.9000+129.7096/+30.9049+129.7000/+30.9139+129.6800/+30.9200+129.6677/+30.9240+129.6600/+30.9339+129.6400/+30.9400+129.6280/+30.9484+129.6200/+30.9600+129.6078/+30.9730+129.6000/+30.9800+129.5915/+30.9875+129.5800/+30.9969+129.5600/+31.0000+129.5528/+31.0020+129.5600/ 西 70 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8240+130.2600/+30.8300+130.2800/+30.8200+130.2900/+30.8188+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.7831+130.2800/+30.7937+130.2600/+30.8000+130.2503/+30.8200+130.2526/+30.8240+130.2600/ 北西 5 鹿児島県三島村 4630300 2026-08-26T06:00:00+09:00 2026-08-26T09:00:00+09:00 降灰 70 +31.1008+129.5000/+31.1000+129.5052/+31.0984+129.5000/+31.1000+129.4960/+31.1008+129.5000/ +31.0659+129.5600/+31.0685+129.5800/+31.0693+129.6000/+31.0677+129.6200/+31.0666+129.6400/+31.0645+129.6600/+31.0611+129.6800/+31.0600+129.6866/+31.0572+129.7000/+31.0474+129.7200/+31.0400+129.7373/+31.0393+129.7400/+31.0350+129.7600/+31.0315+129.7800/+31.0285+129.8000/+31.0231+129.8200/+31.0200+129.8291/+31.0147+129.8400/+31.0000+129.8547/+30.9982+129.8600/+30.9923+129.8800/+30.9896+129.9000/+30.9864+129.9200/+30.9811+129.9400/+30.9800+129.9415/+30.9600+129.9578/+30.9595+129.9600/+30.9559+129.9800/+30.9524+130.0000/+30.9454+130.0200/+30.9400+130.0277/+30.9255+130.0400/+30.9200+130.0443/+30.9180+130.0600/+30.9134+130.0800/+30.9000+130.0963/+30.8995+130.1000/+30.8977+130.1200/+30.8886+130.1400/+30.8800+130.1491/+30.8793+130.1600/+30.8777+130.1800/+30.8600+130.1993/+30.8599+130.2000/+30.8595+130.2200/+30.8564+130.2400/+30.8400+130.2570/+30.8399+130.2600/+30.8397+130.2800/+30.8361+130.3000/+30.8200+130.3161/+30.8000+130.3199/+30.7800+130.3187/+30.7613+130.3000/+30.7622+130.2800/+30.7800+130.2619/+30.7801+130.2600/+30.7802+130.2400/+30.7806+130.2200/+30.7826+130.2000/+30.7938+130.1800/+30.8000+130.1727/+30.8006+130.1600/+30.8022+130.1400/+30.8054+130.1200/+30.8170+130.1000/+30.8200+130.0947/+30.8213+130.0800/+30.8248+130.0600/+30.8299+130.0400/+30.8385+130.0200/+30.8400+130.0176/+30.8429+130.0000/+30.8450+129.9800/+30.8497+129.9600/+30.8583+129.9400/+30.8600+129.9366/+30.8679+129.9200/+30.8748+129.9000/+30.8800+129.8910/+30.8839+129.8800/+30.8887+129.8600/+30.8962+129.8400/+30.9000+129.8262/+30.9021+129.8200/+30.9098+129.8000/+30.9179+129.7800/+30.9200+129.7753/+30.9285+129.7600/+30.9400+129.7406/+30.9405+129.7400/+30.9505+129.7200/+30.9600+129.7025/+30.9611+129.7000/+30.9696+129.6800/+30.9800+129.6620/+30.9814+129.6600/+30.9954+129.6400/+31.0000+129.6335/+31.0149+129.6200/+31.0200+129.6131/+31.0269+129.6000/+31.0349+129.5800/+31.0400+129.5678/+31.0516+129.5600/+31.0600+129.5528/+31.0659+129.5600/ 西 80 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8248+130.2600/+30.8297+130.2800/+30.8200+130.2897/+30.8188+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.7835+130.2800/+30.7950+130.2600/+30.8000+130.2532/+30.8200+130.2516/+30.8248+130.2600/ 北西 5 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、２５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。 　２５日１５時から２６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 　２５日１５時から１８時まで　西　　　　　　　８０ｋｍ　　５ｋｍ　　　　　 　２５日１８時から２１時まで　西　　　　　　　７０ｋｍ　　４ｋｍ　　　　　 　２５日２１時から２４時まで　西　　　　　　　７０ｋｍ　　５ｋｍ　　　　　 　２６日００時から０３時まで　西　　　　　　　７０ｋｍ　　５ｋｍ　　　　　 　２６日０３時から０６時まで　西　　　　　　　７０ｋｍ　　５ｋｍ　　　　　 　２６日０６時から０９時まで　西　　　　　　　８０ｋｍ　　５ｋｍ　　　　　 　 　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。 　強風のため、遠方まで小さな噴石が流されるおそれがあります。