2026-08-05T02:00:00Z 通常 気象庁本庁 気象庁 2026-08-05T11:00:00+09:00 2026-08-05T12:00:00+09:00 2026-08-06T06:00:00+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、５日２１時から２４時までは火口から南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 2026-08-05T12:00:00+09:00 2026-08-05T15:00:00+09:00 降灰 70 +30.8196+130.2800/+30.8198+130.3000/+30.8000+130.3199/+30.7800+130.3200/+30.7600+130.3000/+30.7600+130.2998/+30.7403+130.2800/+30.7400+130.2600/+30.7400+130.2598/+30.7206+130.2400/+30.7200+130.2200/+30.7200+130.2198/+30.7011+130.2000/+30.7000+130.1844/+30.6956+130.1800/+30.6814+130.1600/+30.6800+130.1495/+30.6707+130.1400/+30.6616+130.1200/+30.6600+130.1123/+30.6484+130.1000/+30.6417+130.0800/+30.6400+130.0722/+30.6200+130.0622/+30.6178+130.0600/+30.6073+130.0400/+30.6022+130.0200/+30.6000+130.0115/+30.5878+130.0000/+30.5800+129.9870/+30.5758+129.9800/+30.5659+129.9600/+30.5600+129.9412/+30.5582+129.9400/+30.5418+129.9200/+30.5400+129.9173/+30.5318+129.9000/+30.5200+129.8830/+30.5171+129.8800/+30.5117+129.8600/+30.5060+129.8400/+30.5000+129.8287/+30.4909+129.8200/+30.4800+129.8033/+30.4784+129.8000/+30.4744+129.7800/+30.4696+129.7600/+30.4652+129.7400/+30.4600+129.7251/+30.4573+129.7200/+30.4421+129.7000/+30.4400+129.6934/+30.4376+129.6800/+30.4326+129.6600/+30.4334+129.6400/+30.4400+129.6324/+30.4565+129.6400/+30.4600+129.6421/+30.4677+129.6600/+30.4779+129.6800/+30.4800+129.6821/+30.5000+129.6924/+30.5054+129.7000/+30.5180+129.7200/+30.5200+129.7237/+30.5280+129.7400/+30.5400+129.7572/+30.5427+129.7600/+30.5600+129.7719/+30.5675+129.7800/+30.5785+129.8000/+30.5800+129.8031/+30.5878+129.8200/+30.5918+129.8400/+30.6000+129.8516/+30.6108+129.8600/+30.6200+129.8738/+30.6225+129.8800/+30.6331+129.9000/+30.6385+129.9200/+30.6400+129.9222/+30.6521+129.9400/+30.6580+129.9600/+30.6600+129.9673/+30.6715+129.9800/+30.6800+129.9872/+30.6893+130.0000/+30.6944+130.0200/+30.6958+130.0400/+30.6995+130.0600/+30.7000+130.0612/+30.7167+130.0800/+30.7199+130.1000/+30.7200+130.1003/+30.7377+130.1200/+30.7398+130.1400/+30.7400+130.1406/+30.7581+130.1600/+30.7599+130.1800/+30.7600+130.1804/+30.7789+130.2000/+30.7799+130.2200/+30.7800+130.2203/+30.7995+130.2400/+30.7999+130.2600/+30.8000+130.2603/+30.8196+130.2800/ 南西 70 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3188/+30.7612+130.3000/+30.7629+130.2800/+30.7800+130.2617/+30.7951+130.2800/+30.8000+130.2812/+30.8188+130.3000/ 南西 3 鹿児島県三島村 4630300 2026-08-05T15:00:00+09:00 2026-08-05T18:00:00+09:00 降灰 70 +30.8196+130.2800/+30.8198+130.3000/+30.8000+130.3199/+30.7800+130.3200/+30.7600+130.3000/+30.7600+130.2999/+30.7402+130.2800/+30.7400+130.2622/+30.7378+130.2600/+30.7204+130.2400/+30.7200+130.2307/+30.7093+130.2200/+30.7006+130.2000/+30.7000+130.1939/+30.6861+130.1800/+30.6807+130.1600/+30.6800+130.1565/+30.6640+130.1400/+30.6604+130.1200/+30.6600+130.1184/+30.6430+130.1000/+30.6400+130.0820/+30.6381+130.0800/+30.6200+130.0727/+30.6070+130.0600/+30.6030+130.0400/+30.6000+130.0280/+30.5894+130.0200/+30.5800+130.0079/+30.5748+130.0000/+30.5644+129.9800/+30.5600+129.9651/+30.5551+129.9600/+30.5400+129.9477/+30.5353+129.9400/+30.5289+129.9200/+30.5226+129.9000/+30.5200+129.8952/+30.5072+129.8800/+30.5000+129.8630/+30.4969+129.8600/+30.4832+129.8400/+30.4800+129.8333/+30.4746+129.8200/+30.4682+129.8000/+30.4610+129.7800/+30.4600+129.7782/+30.4450+129.7600/+30.4400+129.7524/+30.4341+129.7400/+30.4282+129.7200/+30.4218+129.7000/+30.4200+129.6857/+30.4187+129.6800/+30.4000+129.6629/+30.3979+129.6600/+30.3919+129.6400/+30.3925+129.6200/+30.3936+129.6000/+30.4000+129.5928/+30.4045+129.6000/+30.4103+129.6200/+30.4200+129.6353/+30.4254+129.6400/+30.4400+129.6489/+30.4523+129.6600/+30.4600+129.6655/+30.4685+129.6800/+30.4788+129.7000/+30.4800+129.7022/+30.5000+129.7197/+30.5004+129.7200/+30.5178+129.7400/+30.5200+129.7440/+30.5282+129.7600/+30.5400+129.7793/+30.5406+129.7800/+30.5565+129.8000/+30.5600+129.8023/+30.5766+129.8200/+30.5800+129.8258/+30.5849+129.8400/+30.5931+129.8600/+30.5993+129.8800/+30.6000+129.8808/+30.6200+129.8939/+30.6241+129.9000/+30.6309+129.9200/+30.6380+129.9400/+30.6400+129.9431/+30.6509+129.9600/+30.6559+129.9800/+30.6600+129.9890/+30.6746+130.0000/+30.6800+130.0053/+30.6898+130.0200/+30.6800+130.0350/+30.6794+130.0400/+30.6800+130.0414/+30.6965+130.0600/+30.7000+130.0768/+30.7031+130.0800/+30.7180+130.1000/+30.7200+130.1103/+30.7294+130.1200/+30.7389+130.1400/+30.7400+130.1449/+30.7547+130.1600/+30.7595+130.1800/+30.7600+130.1825/+30.7774+130.2000/+30.7798+130.2200/+30.7800+130.2207/+30.7992+130.2400/+30.7999+130.2600/+30.8000+130.2604/+30.8196+130.2800/ 南西 80 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3188/+30.7612+130.3000/+30.7626+130.2800/+30.7800+130.2615/+30.7952+130.2800/+30.8000+130.2812/+30.8188+130.3000/ 南西 3 鹿児島県三島村 4630300 2026-08-05T18:00:00+09:00 2026-08-05T21:00:00+09:00 降灰 70 +30.8195+130.2800/+30.8198+130.3000/+30.8000+130.3199/+30.7800+130.3199/+30.7600+130.3006/+30.7594+130.3000/+30.7402+130.2800/+30.7400+130.2781/+30.7219+130.2600/+30.7201+130.2400/+30.7200+130.2394/+30.7010+130.2200/+30.7000+130.2128/+30.6873+130.2000/+30.6806+130.1800/+30.6800+130.1776/+30.6630+130.1600/+30.6600+130.1445/+30.6556+130.1400/+30.6412+130.1200/+30.6400+130.1164/+30.6251+130.1000/+30.6200+130.0867/+30.6115+130.0800/+30.6000+130.0704/+30.5877+130.0600/+30.5800+130.0492/+30.5745+130.0400/+30.5628+130.0200/+30.5600+130.0140/+30.5440+130.0000/+30.5400+129.9955/+30.5303+129.9800/+30.5250+129.9600/+30.5200+129.9478/+30.5091+129.9400/+30.5000+129.9279/+30.4923+129.9200/+30.4800+129.9033/+30.4782+129.9000/+30.4692+129.8800/+30.4623+129.8600/+30.4600+129.8525/+30.4536+129.8400/+30.4400+129.8213/+30.4389+129.8200/+30.4267+129.8000/+30.4200+129.7805/+30.4198+129.7800/+30.4097+129.7600/+30.4000+129.7463/+30.3952+129.7400/+30.3830+129.7200/+30.3800+129.7142/+30.3735+129.7000/+30.3724+129.6800/+30.3683+129.6600/+30.3800+129.6449/+30.4000+129.6432/+30.4119+129.6600/+30.4200+129.6726/+30.4250+129.6800/+30.4397+129.7000/+30.4400+129.7003/+30.4600+129.7181/+30.4617+129.7200/+30.4751+129.7400/+30.4800+129.7492/+30.4867+129.7600/+30.5000+129.7710/+30.5105+129.7800/+30.5200+129.7928/+30.5238+129.8000/+30.5364+129.8200/+30.5400+129.8257/+30.5515+129.8400/+30.5600+129.8598/+30.5601+129.8600/+30.5776+129.8800/+30.5800+129.8824/+30.5913+129.9000/+30.5976+129.9200/+30.6000+129.9227/+30.6159+129.9400/+30.6200+129.9472/+30.6294+129.9600/+30.6378+129.9800/+30.6400+129.9823/+30.6543+130.0000/+30.6600+130.0160/+30.6653+130.0200/+30.6665+130.0400/+30.6781+130.0600/+30.6800+130.0641/+30.6949+130.0800/+30.6998+130.1000/+30.7000+130.1004/+30.7183+130.1200/+30.7200+130.1272/+30.7326+130.1400/+30.7394+130.1600/+30.7400+130.1616/+30.7580+130.1800/+30.7599+130.2000/+30.7600+130.2001/+30.7795+130.2200/+30.7800+130.2232/+30.7968+130.2400/+30.7999+130.2600/+30.8000+130.2605/+30.8195+130.2800/ 南西 80 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3188/+30.7612+130.3000/+30.7620+130.2800/+30.7684+130.2600/+30.7800+130.2544/+30.7856+130.2600/+30.7965+130.2800/+30.8000+130.2812/+30.8188+130.3000/ 南西 5 鹿児島県三島村 4630300 2026-08-05T21:00:00+09:00 2026-08-06T00:00:00+09:00 降灰 70 +30.8196+130.2800/+30.8198+130.3000/+30.8000+130.3198/+30.7800+130.3199/+30.7600+130.3102/+30.7498+130.3000/+30.7401+130.2800/+30.7400+130.2792/+30.7208+130.2600/+30.7200+130.2527/+30.7073+130.2400/+30.7003+130.2200/+30.7000+130.2190/+30.6817+130.2000/+30.6800+130.1934/+30.6668+130.1800/+30.6601+130.1600/+30.6600+130.1598/+30.6419+130.1400/+30.6400+130.1358/+30.6249+130.1200/+30.6200+130.1085/+30.6120+130.1000/+30.6000+130.0882/+30.5877+130.0800/+30.5800+130.0708/+30.5720+130.0600/+30.5628+130.0400/+30.5600+130.0348/+30.5491+130.0200/+30.5400+130.0096/+30.5310+130.0000/+30.5238+129.9800/+30.5200+129.9668/+30.5141+129.9600/+30.5000+129.9482/+30.4936+129.9400/+30.4800+129.9238/+30.4757+129.9200/+30.4659+129.9000/+30.4600+129.8814/+30.4593+129.8800/+30.4487+129.8600/+30.4400+129.8424/+30.4387+129.8400/+30.4288+129.8200/+30.4205+129.8000/+30.4200+129.7985/+30.4127+129.7800/+30.4000+129.7619/+30.3984+129.7600/+30.3882+129.7400/+30.3821+129.7200/+30.3800+129.7144/+30.3739+129.7000/+30.3800+129.6814/+30.3810+129.6800/+30.4000+129.6695/+30.4086+129.6800/+30.4200+129.6937/+30.4254+129.7000/+30.4400+129.7122/+30.4510+129.7200/+30.4600+129.7255/+30.4711+129.7400/+30.4800+129.7559/+30.4825+129.7600/+30.5000+129.7783/+30.5018+129.7800/+30.5168+129.8000/+30.5200+129.8038/+30.5333+129.8200/+30.5400+129.8284/+30.5507+129.8400/+30.5600+129.8519/+30.5653+129.8600/+30.5795+129.8800/+30.5800+129.8807/+30.5913+129.9000/+30.5980+129.9200/+30.6000+129.9223/+30.6156+129.9400/+30.6200+129.9474/+30.6293+129.9600/+30.6388+129.9800/+30.6400+129.9814/+30.6537+130.0000/+30.6600+130.0139/+30.6674+130.0200/+30.6718+130.0400/+30.6789+130.0600/+30.6800+130.0622/+30.6955+130.0800/+30.7000+130.0945/+30.7052+130.1000/+30.7180+130.1200/+30.7200+130.1255/+30.7337+130.1400/+30.7395+130.1600/+30.7400+130.1613/+30.7578+130.1800/+30.7600+130.1976/+30.7624+130.2000/+30.7794+130.2200/+30.7800+130.2231/+30.7969+130.2400/+30.7999+130.2600/+30.8000+130.2603/+30.8196+130.2800/ 南西 70 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3188/+30.7612+130.3000/+30.7619+130.2800/+30.7671+130.2600/+30.7800+130.2484/+30.7883+130.2600/+30.7973+130.2800/+30.8000+130.2812/+30.8188+130.3000/ 南西 5 鹿児島県三島村 4630300 2026-08-06T00:00:00+09:00 2026-08-06T03:00:00+09:00 降灰 70 +30.8195+130.2800/+30.8197+130.3000/+30.8000+130.3198/+30.7800+130.3199/+30.7600+130.3036/+30.7564+130.3000/+30.7402+130.2800/+30.7400+130.2790/+30.7210+130.2600/+30.7200+130.2496/+30.7104+130.2400/+30.7004+130.2200/+30.7000+130.2184/+30.6819+130.2000/+30.6800+130.1932/+30.6670+130.1800/+30.6603+130.1600/+30.6600+130.1593/+30.6418+130.1400/+30.6400+130.1350/+30.6268+130.1200/+30.6200+130.1067/+30.6132+130.1000/+30.6000+130.0878/+30.5886+130.0800/+30.5800+130.0704/+30.5719+130.0600/+30.5621+130.0400/+30.5600+130.0357/+30.5492+130.0200/+30.5400+130.0089/+30.5314+130.0000/+30.5222+129.9800/+30.5200+129.9739/+30.5079+129.9600/+30.5000+129.9486/+30.4954+129.9400/+30.4800+129.9206/+30.4792+129.9200/+30.4691+129.9000/+30.4610+129.8800/+30.4600+129.8777/+30.4494+129.8600/+30.4400+129.8424/+30.4385+129.8400/+30.4274+129.8200/+30.4200+129.8024/+30.4191+129.8000/+30.4134+129.7800/+30.4047+129.7600/+30.4000+129.7492/+30.3954+129.7400/+30.3890+129.7200/+30.3817+129.7000/+30.3810+129.6800/+30.3800+129.6653/+30.3795+129.6600/+30.3800+129.6586/+30.3959+129.6400/+30.4000+129.6388/+30.4009+129.6400/+30.4111+129.6600/+30.4200+129.6766/+30.4227+129.6800/+30.4400+129.6931/+30.4469+129.7000/+30.4600+129.7103/+30.4671+129.7200/+30.4800+129.7394/+30.4804+129.7400/+30.4954+129.7600/+30.5000+129.7638/+30.5152+129.7800/+30.5200+129.7872/+30.5268+129.8000/+30.5400+129.8158/+30.5448+129.8200/+30.5600+129.8353/+30.5637+129.8400/+30.5726+129.8600/+30.5800+129.8727/+30.5829+129.8800/+30.5930+129.9000/+30.6000+129.9196/+30.6003+129.9200/+30.6164+129.9400/+30.6200+129.9464/+30.6299+129.9600/+30.6400+129.9800/+30.6545+130.0000/+30.6600+130.0137/+30.6676+130.0200/+30.6704+130.0400/+30.6789+130.0600/+30.6800+130.0625/+30.6948+130.0800/+30.7000+130.0954/+30.7044+130.1000/+30.7181+130.1200/+30.7200+130.1254/+30.7341+130.1400/+30.7394+130.1600/+30.7400+130.1616/+30.7578+130.1800/+30.7600+130.1972/+30.7628+130.2000/+30.7795+130.2200/+30.7800+130.2227/+30.7972+130.2400/+30.7999+130.2600/+30.8000+130.2604/+30.8195+130.2800/ 南西 80 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3188/+30.7612+130.3000/+30.7619+130.2800/+30.7659+130.2600/+30.7800+130.2469/+30.7883+130.2600/+30.7971+130.2800/+30.8000+130.2812/+30.8188+130.3000/ 南西 5 鹿児島県三島村 4630300 2026-08-06T03:00:00+09:00 2026-08-06T06:00:00+09:00 降灰 70 +30.8194+130.2800/+30.8196+130.3000/+30.8000+130.3197/+30.7800+130.3199/+30.7600+130.3069/+30.7531+130.3000/+30.7401+130.2800/+30.7400+130.2793/+30.7207+130.2600/+30.7200+130.2558/+30.7043+130.2400/+30.7000+130.2208/+30.6992+130.2200/+30.6807+130.2000/+30.6800+130.1978/+30.6631+130.1800/+30.6600+130.1723/+30.6483+130.1600/+30.6405+130.1400/+30.6400+130.1389/+30.6229+130.1200/+30.6200+130.1132/+30.6080+130.1000/+30.6000+130.0903/+30.5854+130.0800/+30.5800+130.0728/+30.5711+130.0600/+30.5630+130.0400/+30.5600+130.0345/+30.5493+130.0200/+30.5400+130.0093/+30.5309+130.0000/+30.5229+129.9800/+30.5200+129.9696/+30.5116+129.9600/+30.5000+129.9488/+30.4945+129.9400/+30.4800+129.9230/+30.4762+129.9200/+30.4668+129.9000/+30.4600+129.8857/+30.4553+129.8800/+30.4400+129.8606/+30.4395+129.8600/+30.4257+129.8400/+30.4200+129.8305/+30.4139+129.8200/+30.4028+129.8000/+30.4000+129.7938/+30.3900+129.7800/+30.3800+129.7643/+30.3774+129.7600/+30.3702+129.7400/+30.3600+129.7201/+30.3599+129.7200/+30.3400+129.7041/+30.3366+129.7000/+30.3400+129.6852/+30.3600+129.6812/+30.3800+129.6921/+30.4000+129.6976/+30.4023+129.7000/+30.4173+129.7200/+30.4200+129.7229/+30.4399+129.7400/+30.4400+129.7401/+30.4600+129.7543/+30.4652+129.7600/+30.4800+129.7754/+30.4838+129.7800/+30.4974+129.8000/+30.5000+129.8019/+30.5200+129.8154/+30.5246+129.8200/+30.5378+129.8400/+30.5400+129.8431/+30.5503+129.8600/+30.5600+129.8785/+30.5615+129.8800/+30.5800+129.8900/+30.5879+129.9000/+30.5950+129.9200/+30.6000+129.9258/+30.6143+129.9400/+30.6200+129.9499/+30.6275+129.9600/+30.6365+129.9800/+30.6400+129.9836/+30.6536+130.0000/+30.6600+130.0185/+30.6620+130.0200/+30.6662+130.0400/+30.6779+130.0600/+30.6800+130.0648/+30.6940+130.0800/+30.6996+130.1000/+30.7000+130.1009/+30.7171+130.1200/+30.7200+130.1317/+30.7282+130.1400/+30.7391+130.1600/+30.7400+130.1626/+30.7569+130.1800/+30.7598+130.2000/+30.7600+130.2004/+30.7793+130.2200/+30.7800+130.2238/+30.7962+130.2400/+30.7999+130.2600/+30.8000+130.2606/+30.8194+130.2800/ 南西 80 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3188/+30.7612+130.3000/+30.7610+130.2800/+30.7600+130.2618/+30.7591+130.2600/+30.7600+130.2568/+30.7800+130.2479/+30.7921+130.2600/+30.7977+130.2800/+30.8000+130.2812/+30.8188+130.3000/ 南西 6 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、５日２１時から２４時までは火口から南西方向に降灰が予想されます。 　５日１２時から６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 　０５日１２時から１５時まで　南西　　　　　　７０ｋｍ　　３ｋｍ　　　　　 　０５日１５時から１８時まで　南西　　　　　　８０ｋｍ　　３ｋｍ　　　　　 　０５日１８時から２１時まで　南西　　　　　　８０ｋｍ　　５ｋｍ　　　　　 　０５日２１時から２４時まで　南西　　　　　　７０ｋｍ　　５ｋｍ　　　　　 　０６日００時から０３時まで　南西　　　　　　８０ｋｍ　　５ｋｍ　　　　　 　０６日０３時から０６時まで　南西　　　　　　８０ｋｍ　　６ｋｍ　　　　　 　 　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。