2026-08-30T17:00:00Z 通常 気象庁本庁 気象庁 2026-08-31T02:00:00+09:00 2026-08-31T03:00:00+09:00 2026-08-31T21:00:00+09:00 511 発表 1 降灰予報 1.1_0 　現在、諏訪之瀬島は噴火警戒レベル２（火口周辺規制）です。諏訪之瀬島で噴火が発生した場合には、３１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 諏訪之瀬島 511 降灰 70 鹿児島県十島村 4630400 小さな噴石の落下 75 鹿児島県十島村 4630400 降灰予報（定時） 06 諏訪之瀬島 511 +2938.30+12942.83+796/ 降灰 70 鹿児島県十島村 4630400 小さな噴石の落下 75 鹿児島県十島村 4630400 2026-08-31T03:00:00+09:00 2026-08-31T06:00:00+09:00 降灰 70 +29.8850+129.4000/+29.8914+129.4200/+29.8930+129.4400/+29.8893+129.4600/+29.8800+129.4775/+29.8783+129.4800/+29.8600+129.4992/+29.8595+129.5000/+29.8502+129.5200/+29.8400+129.5285/+29.8325+129.5400/+29.8200+129.5533/+29.8145+129.5600/+29.8000+129.5755/+29.7973+129.5800/+29.7800+129.5983/+29.7790+129.6000/+29.7653+129.6200/+29.7600+129.6258/+29.7525+129.6400/+29.7400+129.6530/+29.7365+129.6600/+29.7200+129.6763/+29.7177+129.6800/+29.7000+129.6974/+29.6990+129.7000/+29.6800+129.7189/+29.6798+129.7200/+29.6600+129.7398/+29.6400+129.7399/+29.6201+129.7200/+29.6200+129.7000/+29.6203+129.6800/+29.6379+129.6600/+29.6400+129.6579/+29.6422+129.6400/+29.6600+129.6203/+29.6602+129.6200/+29.6654+129.6000/+29.6800+129.5831/+29.6822+129.5800/+29.6962+129.5600/+29.7000+129.5547/+29.7080+129.5400/+29.7200+129.5269/+29.7276+129.5200/+29.7400+129.5065/+29.7467+129.5000/+29.7600+129.4847/+29.7662+129.4800/+29.7800+129.4691/+29.7911+129.4600/+29.8000+129.4497/+29.8127+129.4400/+29.8200+129.4322/+29.8373+129.4200/+29.8400+129.4172/+29.8600+129.4042/+29.8709+129.4000/+29.8800+129.3961/+29.8850+129.4000/ 北西 40 鹿児島県十島村 4630400 小さな噴石の落下 75 1 +29.6674+129.7000/+29.6600+129.7070/+29.6588+129.7200/+29.6400+129.7388/+29.6212+129.7200/+29.6212+129.7000/+29.6400+129.6810/+29.6600+129.6915/+29.6674+129.7000/ 北西 2 鹿児島県十島村 4630400 2026-08-31T06:00:00+09:00 2026-08-31T09:00:00+09:00 降灰 70 +29.8036+129.3000/+29.8073+129.3200/+29.8009+129.3400/+29.8000+129.3437/+29.7976+129.3600/+29.7920+129.3800/+29.7884+129.4000/+29.7842+129.4200/+29.7800+129.4345/+29.7789+129.4400/+29.7618+129.4600/+29.7600+129.4646/+29.7579+129.4800/+29.7534+129.5000/+29.7406+129.5200/+29.7400+129.5209/+29.7375+129.5400/+29.7315+129.5600/+29.7200+129.5753/+29.7192+129.5800/+29.7164+129.6000/+29.7063+129.6200/+29.7000+129.6265/+29.6992+129.6400/+29.6976+129.6600/+29.6800+129.6784/+29.6800+129.6800/+29.6799+129.7000/+29.6795+129.7200/+29.6600+129.7395/+29.6400+129.7399/+29.6201+129.7200/+29.6200+129.7000/+29.6200+129.6800/+29.6202+129.6600/+29.6207+129.6400/+29.6222+129.6200/+29.6261+129.6000/+29.6375+129.5800/+29.6400+129.5748/+29.6415+129.5600/+29.6458+129.5400/+29.6536+129.5200/+29.6600+129.5078/+29.6619+129.5000/+29.6689+129.4800/+29.6800+129.4616/+29.6808+129.4600/+29.6844+129.4400/+29.7000+129.4205/+29.7002+129.4200/+29.7028+129.4000/+29.7100+129.3800/+29.7174+129.3600/+29.7200+129.3545/+29.7295+129.3400/+29.7400+129.3245/+29.7429+129.3200/+29.7505+129.3000/+29.7600+129.2859/+29.7800+129.2861/+29.8000+129.2868/+29.8036+129.3000/ 西 40 鹿児島県十島村 4630400 小さな噴石の落下 75 1 +29.6655+129.7000/+29.6600+129.7055/+29.6588+129.7200/+29.6400+129.7388/+29.6212+129.7200/+29.6212+129.7000/+29.6400+129.6806/+29.6600+129.6895/+29.6655+129.7000/ 北西 2 鹿児島県十島村 4630400 2026-08-31T09:00:00+09:00 2026-08-31T12:00:00+09:00 降灰 70 +29.7813+129.2400/+29.7837+129.2600/+29.7850+129.2800/+29.7831+129.3000/+29.7814+129.3200/+29.7800+129.3239/+29.7753+129.3400/+29.7720+129.3600/+29.7683+129.3800/+29.7600+129.3943/+29.7584+129.4000/+29.7547+129.4200/+29.7463+129.4400/+29.7400+129.4486/+29.7367+129.4600/+29.7341+129.4800/+29.7298+129.5000/+29.7200+129.5168/+29.7196+129.5200/+29.7174+129.5400/+29.7141+129.5600/+29.7003+129.5800/+29.7000+129.5804/+29.6991+129.6000/+29.6984+129.6200/+29.6950+129.6400/+29.6800+129.6560/+29.6799+129.6600/+29.6799+129.6800/+29.6799+129.7000/+29.6789+129.7200/+29.6600+129.7389/+29.6400+129.7398/+29.6202+129.7200/+29.6200+129.7000/+29.6200+129.6888/+29.6135+129.6800/+29.6127+129.6600/+29.6140+129.6400/+29.6200+129.6231/+29.6200+129.6200/+29.6205+129.6000/+29.6205+129.5800/+29.6213+129.5600/+29.6229+129.5400/+29.6251+129.5200/+29.6309+129.5000/+29.6324+129.4800/+29.6400+129.4627/+29.6408+129.4600/+29.6462+129.4400/+29.6509+129.4200/+29.6545+129.4000/+29.6600+129.3890/+29.6647+129.3800/+29.6717+129.3600/+29.6800+129.3407/+29.6803+129.3400/+29.6888+129.3200/+29.6935+129.3000/+29.7000+129.2805/+29.7002+129.2800/+29.7110+129.2600/+29.7200+129.2493/+29.7321+129.2400/+29.7400+129.2234/+29.7415+129.2200/+29.7600+129.2025/+29.7758+129.2200/+29.7800+129.2351/+29.7813+129.2400/ 西 50 鹿児島県十島村 4630400 小さな噴石の落下 75 1 +29.6669+129.7000/+29.6600+129.7069/+29.6588+129.7200/+29.6400+129.7388/+29.6212+129.7200/+29.6212+129.7000/+29.6400+129.6804/+29.6600+129.6886/+29.6669+129.7000/ 北西 2 鹿児島県十島村 4630400 2026-08-31T12:00:00+09:00 2026-08-31T15:00:00+09:00 降灰 70 +29.8313+129.1800/+29.8339+129.2000/+29.8308+129.2200/+29.8298+129.2400/+29.8241+129.2600/+29.8203+129.2800/+29.8200+129.2811/+29.8143+129.3000/+29.8051+129.3200/+29.8000+129.3280/+29.7972+129.3400/+29.7932+129.3600/+29.7875+129.3800/+29.7806+129.4000/+29.7800+129.4015/+29.7742+129.4200/+29.7600+129.4332/+29.7584+129.4400/+29.7545+129.4600/+29.7447+129.4800/+29.7400+129.4860/+29.7383+129.5000/+29.7355+129.5200/+29.7200+129.5398/+29.7200+129.5400/+29.7190+129.5600/+29.7170+129.5800/+29.7041+129.6000/+29.7000+129.6040/+29.6997+129.6200/+29.6992+129.6400/+29.6905+129.6600/+29.6800+129.6706/+29.6799+129.6800/+29.6799+129.7000/+29.6788+129.7200/+29.6600+129.7388/+29.6400+129.7398/+29.6202+129.7200/+29.6200+129.7000/+29.6201+129.6800/+29.6202+129.6600/+29.6218+129.6400/+29.6400+129.6211/+29.6401+129.6200/+29.6405+129.6000/+29.6416+129.5800/+29.6477+129.5600/+29.6600+129.5457/+29.6606+129.5400/+29.6618+129.5200/+29.6652+129.5000/+29.6800+129.4801/+29.6800+129.4800/+29.6820+129.4600/+29.6853+129.4400/+29.6926+129.4200/+29.6924+129.4000/+29.7000+129.3909/+29.7024+129.3800/+29.7058+129.3600/+29.7105+129.3400/+29.7174+129.3200/+29.7200+129.3145/+29.7261+129.3000/+29.7338+129.2800/+29.7400+129.2617/+29.7408+129.2600/+29.7549+129.2400/+29.7600+129.2300/+29.7662+129.2200/+29.7740+129.2000/+29.7800+129.1863/+29.7832+129.1800/+29.7962+129.1600/+29.8000+129.1544/+29.8179+129.1600/+29.8200+129.1611/+29.8313+129.1800/ 西 60 鹿児島県十島村 4630400 小さな噴石の落下 75 1 +29.6686+129.7000/+29.6600+129.7085/+29.6588+129.7200/+29.6400+129.7388/+29.6212+129.7200/+29.6212+129.7000/+29.6400+129.6801/+29.6600+129.6827/+29.6686+129.7000/ 北西 2 鹿児島県十島村 4630400 2026-08-31T15:00:00+09:00 2026-08-31T18:00:00+09:00 降灰 70 +29.8400+129.1600/+29.8400+129.1601/+29.8350+129.1800/+29.8349+129.2000/+29.8330+129.2200/+29.8328+129.2400/+29.8266+129.2600/+29.8222+129.2800/+29.8200+129.2878/+29.8159+129.3000/+29.8063+129.3200/+29.8000+129.3303/+29.7974+129.3400/+29.7924+129.3600/+29.7847+129.3800/+29.7800+129.3922/+29.7778+129.4000/+29.7698+129.4200/+29.7600+129.4285/+29.7565+129.4400/+29.7511+129.4600/+29.7400+129.4786/+29.7398+129.4800/+29.7363+129.5000/+29.7297+129.5200/+29.7200+129.5335/+29.7193+129.5400/+29.7178+129.5600/+29.7134+129.5800/+29.7000+129.5964/+29.6998+129.6000/+29.6993+129.6200/+29.6982+129.6400/+29.6813+129.6600/+29.6800+129.6613/+29.6799+129.6800/+29.6799+129.7000/+29.6785+129.7200/+29.6600+129.7385/+29.6400+129.7397/+29.6203+129.7200/+29.6200+129.7000/+29.6200+129.6800/+29.6201+129.6600/+29.6205+129.6400/+29.6219+129.6200/+29.6290+129.6000/+29.6400+129.5868/+29.6404+129.5800/+29.6411+129.5600/+29.6426+129.5400/+29.6470+129.5200/+29.6579+129.5000/+29.6600+129.4962/+29.6616+129.4800/+29.6643+129.4600/+29.6704+129.4400/+29.6800+129.4202/+29.6801+129.4200/+29.6800+129.4194/+29.6748+129.4000/+29.6800+129.3876/+29.6825+129.3800/+29.6917+129.3600/+29.7000+129.3486/+29.7033+129.3400/+29.7106+129.3200/+29.7198+129.3000/+29.7200+129.2998/+29.7298+129.2800/+29.7362+129.2600/+29.7400+129.2509/+29.7457+129.2400/+29.7558+129.2200/+29.7600+129.2142/+29.7722+129.2000/+29.7800+129.1858/+29.7837+129.1800/+29.7993+129.1600/+29.8000+129.1591/+29.8200+129.1592/+29.8400+129.1598/+29.8400+129.1600/ 西 60 鹿児島県十島村 4630400 小さな噴石の落下 75 1 +29.6608+129.6800/+29.6676+129.7000/+29.6600+129.7076/+29.6588+129.7200/+29.6400+129.7388/+29.6212+129.7200/+29.6212+129.7000/+29.6380+129.6800/+29.6400+129.6773/+29.6600+129.6789/+29.6608+129.6800/ 北西 4 鹿児島県十島村 4630400 2026-08-31T18:00:00+09:00 2026-08-31T21:00:00+09:00 降灰 70 +29.8050+129.0400/+29.8076+129.0600/+29.8077+129.0800/+29.8077+129.1000/+29.8075+129.1200/+29.8074+129.1400/+29.8054+129.1600/+29.8013+129.1800/+29.8000+129.1859/+29.7972+129.2000/+29.7926+129.2200/+29.7909+129.2400/+29.7887+129.2600/+29.7866+129.2800/+29.7854+129.3000/+29.7840+129.3200/+29.7800+129.3276/+29.7734+129.3400/+29.7660+129.3600/+29.7600+129.3701/+29.7588+129.3800/+29.7568+129.4000/+29.7550+129.4200/+29.7400+129.4371/+29.7388+129.4400/+29.7373+129.4600/+29.7347+129.4800/+29.7281+129.5000/+29.7200+129.5107/+29.7192+129.5200/+29.7183+129.5400/+29.7163+129.5600/+29.7066+129.5800/+29.7000+129.5870/+29.6996+129.6000/+29.6994+129.6200/+29.6983+129.6400/+29.6800+129.6592/+29.6800+129.6600/+29.6799+129.6800/+29.6799+129.7000/+29.6783+129.7200/+29.6600+129.7383/+29.6400+129.7397/+29.6203+129.7200/+29.6200+129.7000/+29.6200+129.6800/+29.6201+129.6600/+29.6207+129.6400/+29.6249+129.6200/+29.6400+129.6027/+29.6401+129.6000/+29.6406+129.5800/+29.6413+129.5600/+29.6435+129.5400/+29.6486+129.5200/+29.6600+129.5036/+29.6604+129.5000/+29.6616+129.4800/+29.6636+129.4600/+29.6684+129.4400/+29.6755+129.4200/+29.6673+129.4000/+29.6726+129.3800/+29.6792+129.3600/+29.6800+129.3578/+29.6852+129.3400/+29.6951+129.3200/+29.6920+129.3000/+29.6969+129.2800/+29.7000+129.2674/+29.7023+129.2600/+29.7122+129.2400/+29.7200+129.2239/+29.7213+129.2200/+29.7211+129.2000/+29.7256+129.1800/+29.7316+129.1600/+29.7392+129.1400/+29.7400+129.1381/+29.7560+129.1200/+29.7600+129.1153/+29.7795+129.1000/+29.7800+129.0988/+29.7856+129.0800/+29.7893+129.0600/+29.7943+129.0400/+29.8000+129.0251/+29.8050+129.0400/ 西 70 鹿児島県十島村 4630400 小さな噴石の落下 75 1 +29.6524+129.6800/+29.6599+129.7000/+29.6588+129.7200/+29.6400+129.7388/+29.6212+129.7200/+29.6212+129.7000/+29.6359+129.6800/+29.6400+129.6747/+29.6524+129.6800/ 西 3 鹿児島県十島村 4630400 　現在、諏訪之瀬島は噴火警戒レベル２（火口周辺規制）です。諏訪之瀬島で噴火が発生した場合には、３１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。 　３１日３時から３１日２１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 　３１日０３時から０６時まで　北西　　　　　　４０ｋｍ　　２ｋｍ　　　　　 　３１日０６時から０９時まで　西　　　　　　　４０ｋｍ　　２ｋｍ　　　　　 　３１日０９時から１２時まで　西　　　　　　　５０ｋｍ　　２ｋｍ　　　　　 　３１日１２時から１５時まで　西　　　　　　　６０ｋｍ　　２ｋｍ　　　　　 　３１日１５時から１８時まで　西　　　　　　　６０ｋｍ　　４ｋｍ　　　　　 　３１日１８時から２１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：十島村 　 　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。