2026-07-31T08:00:00Z 通常 気象庁本庁 気象庁 2026-07-31T17:00:00+09:00 2026-07-31T18:00:00+09:00 2026-08-01T12:00:00+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、３１日２１時から２４時までは火口から南東方向、１日０９時から１２時までは火口から南東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 2026-07-31T18:00:00+09:00 2026-07-31T21:00:00+09:00 降灰 70 +30.8197+130.3000/+30.8199+130.3200/+30.8138+130.3400/+30.8000+130.3538/+30.7994+130.3600/+30.7800+130.3795/+30.7797+130.3800/+30.7752+130.4000/+30.7600+130.4153/+30.7589+130.4200/+30.7411+130.4400/+30.7400+130.4411/+30.7374+130.4600/+30.7200+130.4796/+30.7198+130.4800/+30.7151+130.5000/+30.7000+130.5182/+30.6994+130.5200/+30.6939+130.5400/+30.6800+130.5580/+30.6793+130.5600/+30.6746+130.5800/+30.6720+130.6000/+30.6600+130.6118/+30.6567+130.6200/+30.6492+130.6400/+30.6400+130.6569/+30.6380+130.6600/+30.6289+130.6800/+30.6221+130.7000/+30.6200+130.7044/+30.6088+130.7200/+30.6000+130.7316/+30.5943+130.7400/+30.5829+130.7600/+30.5800+130.7671/+30.5713+130.7800/+30.5600+130.7983/+30.5574+130.8000/+30.5400+130.8153/+30.5298+130.8200/+30.5200+130.8307/+30.5163+130.8400/+30.5082+130.8600/+30.5000+130.8732/+30.4884+130.8600/+30.4864+130.8400/+30.4907+130.8200/+30.4938+130.8000/+30.5000+130.7894/+30.5085+130.7800/+30.5142+130.7600/+30.5183+130.7400/+30.5200+130.7380/+30.5289+130.7200/+30.5344+130.7000/+30.5400+130.6820/+30.5407+130.6800/+30.5513+130.6600/+30.5600+130.6507/+30.5634+130.6400/+30.5695+130.6200/+30.5790+130.6000/+30.5800+130.5983/+30.5907+130.5800/+30.6000+130.5690/+30.6020+130.5600/+30.6200+130.5408/+30.6204+130.5400/+30.6262+130.5200/+30.6400+130.5029/+30.6407+130.5000/+30.6472+130.4800/+30.6600+130.4662/+30.6613+130.4600/+30.6702+130.4400/+30.6800+130.4299/+30.6818+130.4200/+30.7000+130.4007/+30.7002+130.4000/+30.7033+130.3800/+30.7200+130.3632/+30.7204+130.3600/+30.7369+130.3400/+30.7400+130.3369/+30.7405+130.3200/+30.7600+130.3005/+30.7602+130.3000/+30.7800+130.2802/+30.8000+130.2803/+30.8197+130.3000/ 南東 60 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8188+130.3000/+30.8184+130.3200/+30.8000+130.3384/+30.7800+130.3394/+30.7616+130.3200/+30.7617+130.3000/+30.7800+130.2817/+30.8000+130.2812/+30.8188+130.3000/ 南東 2 鹿児島県三島村 4630300 2026-07-31T21:00:00+09:00 2026-08-01T00:00:00+09:00 降灰 70 +30.8198+130.3000/+30.8199+130.3200/+30.8089+130.3400/+30.8000+130.3489/+30.7991+130.3600/+30.7800+130.3791/+30.7795+130.3800/+30.7653+130.4000/+30.7600+130.4053/+30.7575+130.4200/+30.7400+130.4386/+30.7393+130.4400/+30.7320+130.4600/+30.7200+130.4726/+30.7167+130.4800/+30.7046+130.5000/+30.7000+130.5055/+30.6951+130.5200/+30.6800+130.5385/+30.6790+130.5400/+30.6695+130.5600/+30.6600+130.5795/+30.6599+130.5800/+30.6530+130.6000/+30.6400+130.6183/+30.6385+130.6200/+30.6219+130.6400/+30.6200+130.6434/+30.6122+130.6600/+30.6000+130.6748/+30.5943+130.6800/+30.5863+130.7000/+30.5800+130.7137/+30.5769+130.7200/+30.5632+130.7400/+30.5600+130.7445/+30.5400+130.7583/+30.5367+130.7600/+30.5200+130.7708/+30.5099+130.7800/+30.5000+130.7924/+30.4888+130.7800/+30.4825+130.7600/+30.4862+130.7400/+30.4978+130.7200/+30.5000+130.7146/+30.5032+130.7000/+30.5137+130.6800/+30.5200+130.6710/+30.5249+130.6600/+30.5307+130.6400/+30.5376+130.6200/+30.5400+130.6174/+30.5523+130.6000/+30.5600+130.5887/+30.5647+130.5800/+30.5729+130.5600/+30.5800+130.5479/+30.5840+130.5400/+30.6000+130.5279/+30.6049+130.5200/+30.6200+130.5007/+30.6203+130.5000/+30.6285+130.4800/+30.6400+130.4684/+30.6440+130.4600/+30.6600+130.4422/+30.6608+130.4400/+30.6703+130.4200/+30.6800+130.4103/+30.6836+130.4000/+30.7000+130.3834/+30.7009+130.3800/+30.7200+130.3603/+30.7201+130.3600/+30.7243+130.3400/+30.7400+130.3243/+30.7403+130.3200/+30.7600+130.3003/+30.7601+130.3000/+30.7800+130.2801/+30.8000+130.2802/+30.8198+130.3000/ 南東 60 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8188+130.3000/+30.8181+130.3200/+30.8000+130.3381/+30.7800+130.3389/+30.7619+130.3200/+30.7615+130.3000/+30.7800+130.2815/+30.8000+130.2812/+30.8188+130.3000/ 南東 2 鹿児島県三島村 4630300 2026-08-01T00:00:00+09:00 2026-08-01T03:00:00+09:00 降灰 70 +30.8198+130.3000/+30.8199+130.3200/+30.8031+130.3400/+30.8000+130.3431/+30.7986+130.3600/+30.7800+130.3786/+30.7793+130.3800/+30.7600+130.3996/+30.7597+130.4000/+30.7545+130.4200/+30.7400+130.4348/+30.7381+130.4400/+30.7200+130.4597/+30.7198+130.4600/+30.7130+130.4800/+30.7000+130.4945/+30.6975+130.5000/+30.6845+130.5200/+30.6800+130.5255/+30.6744+130.5400/+30.6600+130.5553/+30.6564+130.5600/+30.6539+130.5800/+30.6454+130.6000/+30.6400+130.6082/+30.6316+130.6200/+30.6200+130.6358/+30.6168+130.6400/+30.6048+130.6600/+30.6000+130.6652/+30.5846+130.6800/+30.5800+130.6884/+30.5709+130.7000/+30.5600+130.7092/+30.5411+130.7200/+30.5400+130.7214/+30.5200+130.7360/+30.5082+130.7400/+30.5018+130.7600/+30.5000+130.7622/+30.4980+130.7600/+30.4957+130.7400/+30.5000+130.7286/+30.5023+130.7200/+30.5053+130.7000/+30.5075+130.6800/+30.5200+130.6611/+30.5208+130.6600/+30.5286+130.6400/+30.5342+130.6200/+30.5400+130.6135/+30.5476+130.6000/+30.5592+130.5800/+30.5600+130.5788/+30.5690+130.5600/+30.5800+130.5421/+30.5811+130.5400/+30.6000+130.5247/+30.6025+130.5200/+30.6190+130.5000/+30.6200+130.4990/+30.6277+130.4800/+30.6400+130.4663/+30.6426+130.4600/+30.6600+130.4414/+30.6605+130.4400/+30.6691+130.4200/+30.6800+130.4090/+30.6833+130.4000/+30.7000+130.3832/+30.7008+130.3800/+30.7200+130.3604/+30.7201+130.3600/+30.7234+130.3400/+30.7400+130.3234/+30.7403+130.3200/+30.7600+130.3003/+30.7601+130.3000/+30.7800+130.2801/+30.8000+130.2802/+30.8198+130.3000/ 南東 50 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8188+130.3000/+30.8179+130.3200/+30.8000+130.3379/+30.7800+130.3386/+30.7622+130.3200/+30.7614+130.3000/+30.7800+130.2814/+30.8000+130.2812/+30.8188+130.3000/ 南東 2 鹿児島県三島村 4630300 2026-08-01T03:00:00+09:00 2026-08-01T06:00:00+09:00 降灰 70 +30.8198+130.3000/+30.8199+130.3200/+30.8043+130.3400/+30.8000+130.3443/+30.7988+130.3600/+30.7800+130.3788/+30.7794+130.3800/+30.7600+130.3998/+30.7599+130.4000/+30.7560+130.4200/+30.7400+130.4364/+30.7387+130.4400/+30.7244+130.4600/+30.7200+130.4646/+30.7164+130.4800/+30.7000+130.4987/+30.6993+130.5000/+30.6940+130.5200/+30.6800+130.5364/+30.6782+130.5400/+30.6687+130.5600/+30.6600+130.5759/+30.6587+130.5800/+30.6529+130.6000/+30.6418+130.6200/+30.6400+130.6225/+30.6272+130.6400/+30.6200+130.6528/+30.6167+130.6600/+30.6052+130.6800/+30.6000+130.6867/+30.5912+130.7000/+30.5800+130.7145/+30.5753+130.7200/+30.5603+130.7400/+30.5600+130.7405/+30.5400+130.7466/+30.5298+130.7400/+30.5200+130.7357/+30.5115+130.7200/+30.5192+130.7000/+30.5200+130.6986/+30.5252+130.6800/+30.5313+130.6600/+30.5369+130.6400/+30.5400+130.6316/+30.5451+130.6200/+30.5600+130.6002/+30.5601+130.6000/+30.5687+130.5800/+30.5798+130.5600/+30.5800+130.5597/+30.5935+130.5400/+30.6000+130.5355/+30.6096+130.5200/+30.6200+130.5082/+30.6232+130.5000/+30.6375+130.4800/+30.6400+130.4775/+30.6459+130.4600/+30.6600+130.4447/+30.6614+130.4400/+30.6798+130.4200/+30.6800+130.4198/+30.6845+130.4000/+30.7000+130.3842/+30.7010+130.3800/+30.7200+130.3606/+30.7201+130.3600/+30.7240+130.3400/+30.7400+130.3240/+30.7403+130.3200/+30.7600+130.3003/+30.7601+130.3000/+30.7800+130.2801/+30.8000+130.2802/+30.8198+130.3000/ 南東 50 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8188+130.3000/+30.8180+130.3200/+30.8000+130.3380/+30.7800+130.3389/+30.7620+130.3200/+30.7616+130.3000/+30.7800+130.2816/+30.8000+130.2812/+30.8188+130.3000/ 南東 2 鹿児島県三島村 4630300 2026-08-01T06:00:00+09:00 2026-08-01T09:00:00+09:00 降灰 70 +30.8198+130.3000/+30.8199+130.3200/+30.8000+130.3399/+30.7999+130.3400/+30.7821+130.3600/+30.7800+130.3621/+30.7738+130.3800/+30.7600+130.3938/+30.7566+130.4000/+30.7400+130.4168/+30.7378+130.4200/+30.7200+130.4385/+30.7188+130.4400/+30.7000+130.4597/+30.6997+130.4600/+30.6891+130.4800/+30.6800+130.4903/+30.6745+130.5000/+30.6600+130.5161/+30.6569+130.5200/+30.6408+130.5400/+30.6400+130.5409/+30.6310+130.5600/+30.6200+130.5754/+30.6141+130.5800/+30.6000+130.5959/+30.5969+130.6000/+30.5829+130.6200/+30.5800+130.6241/+30.5658+130.6400/+30.5600+130.6490/+30.5485+130.6600/+30.5400+130.6682/+30.5282+130.6800/+30.5200+130.6884/+30.5000+130.6961/+30.4800+130.6965/+30.4688+130.6800/+30.4747+130.6600/+30.4800+130.6456/+30.4817+130.6400/+30.4917+130.6200/+30.4986+130.6000/+30.5000+130.5969/+30.5112+130.5800/+30.5200+130.5706/+30.5265+130.5600/+30.5400+130.5473/+30.5433+130.5400/+30.5525+130.5200/+30.5600+130.5081/+30.5647+130.5000/+30.5800+130.4886/+30.5921+130.4800/+30.6000+130.4708/+30.6071+130.4600/+30.6200+130.4472/+30.6257+130.4400/+30.6400+130.4268/+30.6446+130.4200/+30.6600+130.4042/+30.6628+130.4000/+30.6800+130.3830/+30.6817+130.3800/+30.7000+130.3617/+30.7008+130.3600/+30.7200+130.3409/+30.7203+130.3400/+30.7400+130.3203/+30.7401+130.3200/+30.7600+130.3001/+30.7601+130.3000/+30.7800+130.2801/+30.8000+130.2802/+30.8198+130.3000/ 南東 50 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/+30.7973+130.3200/+30.7800+130.3381/+30.7618+130.3200/+30.7613+130.3000/+30.7800+130.2813/+30.8000+130.2812/+30.8188+130.3000/ 南 2 鹿児島県三島村 4630300 2026-08-01T09:00:00+09:00 2026-08-01T12:00:00+09:00 降灰 70 +30.8198+130.3000/+30.8198+130.3200/+30.8000+130.3398/+30.7998+130.3400/+30.7800+130.3598/+30.7795+130.3600/+30.7600+130.3796/+30.7592+130.3800/+30.7400+130.3994/+30.7391+130.4000/+30.7200+130.4195/+30.7193+130.4200/+30.7000+130.4397/+30.6997+130.4400/+30.6862+130.4600/+30.6800+130.4665/+30.6721+130.4800/+30.6600+130.4935/+30.6554+130.5000/+30.6400+130.5168/+30.6366+130.5200/+30.6200+130.5391/+30.6193+130.5400/+30.6149+130.5600/+30.6000+130.5723/+30.5916+130.5800/+30.5800+130.5988/+30.5788+130.6000/+30.5600+130.6190/+30.5584+130.6200/+30.5400+130.6347/+30.5328+130.6400/+30.5200+130.6542/+30.5000+130.6562/+30.4871+130.6600/+30.4800+130.6667/+30.4780+130.6600/+30.4739+130.6400/+30.4800+130.6270/+30.4826+130.6200/+30.4857+130.6000/+30.4937+130.5800/+30.5000+130.5641/+30.5017+130.5600/+30.5175+130.5400/+30.5200+130.5370/+30.5354+130.5200/+30.5400+130.5154/+30.5473+130.5000/+30.5600+130.4826/+30.5632+130.4800/+30.5800+130.4690/+30.5867+130.4600/+30.6000+130.4457/+30.6033+130.4400/+30.6200+130.4246/+30.6244+130.4200/+30.6400+130.4050/+30.6446+130.4000/+30.6600+130.3851/+30.6642+130.3800/+30.6800+130.3642/+30.6845+130.3600/+30.7000+130.3450/+30.7069+130.3400/+30.7200+130.3269/+30.7282+130.3200/+30.7400+130.3082/+30.7571+130.3000/+30.7600+130.2971/+30.7800+130.2801/+30.8000+130.2802/+30.8198+130.3000/ 南東 50 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/+30.7970+130.3200/+30.7800+130.3376/+30.7619+130.3200/+30.7612+130.3000/+30.7800+130.2812/+30.8000+130.2812/+30.8188+130.3000/ 南 2 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、３１日２１時から２４時までは火口から南東方向、１日０９時から１２時までは火口から南東方向に降灰が予想されます。 　３１日１８時から１日１２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１８時から２１時まで　南東　　　　　　６０ｋｍ　　２ｋｍ　　　　　 　３１日２１時から２４時まで　南東　　　　　　６０ｋｍ　　２ｋｍ　　　　　 　０１日００時から０３時まで　南東　　　　　　５０ｋｍ　　２ｋｍ　　　　　 　０１日０３時から０６時まで　南東　　　　　　５０ｋｍ　　２ｋｍ　　　　　 　０１日０６時から０９時まで　南東　　　　　　５０ｋｍ　　２ｋｍ　　　　　 　０１日０９時から１２時まで　南東　　　　　　５０ｋｍ　　２ｋｍ　　　　　 　 　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。