2026-10-30T05:00:00Z 通常 気象庁本庁 気象庁 2026-10-30T14:00:00+09:00 2026-10-30T15:00:00+09:00 2026-10-31T09:00:00+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、３０日２１時から２４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 鹿児島県屋久島町 4650500 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 鹿児島県屋久島町 4650500 小さな噴石の落下 75 鹿児島県三島村 4630300 2026-10-30T15:00:00+09:00 2026-10-30T18:00:00+09:00 降灰 70 +30.8199+130.3000/+30.8200+130.3200/+30.8197+130.3400/+30.8164+130.3600/+30.8000+130.3794/+30.7999+130.3800/+30.7993+130.4000/+30.7980+130.4200/+30.7963+130.4400/+30.7936+130.4600/+30.7901+130.4800/+30.7804+130.5000/+30.7800+130.5020/+30.7792+130.5200/+30.7785+130.5400/+30.7746+130.5600/+30.7739+130.5800/+30.7726+130.6000/+30.7715+130.6200/+30.7678+130.6400/+30.7616+130.6600/+30.7600+130.6663/+30.7548+130.6800/+30.7510+130.7000/+30.7400+130.7153/+30.7341+130.7200/+30.7200+130.7396/+30.7099+130.7200/+30.7000+130.7064/+30.6962+130.7000/+30.6916+130.6800/+30.6886+130.6600/+30.6866+130.6400/+30.6842+130.6200/+30.6829+130.6000/+30.6855+130.5800/+30.6861+130.5600/+30.6848+130.5400/+30.6869+130.5200/+30.6871+130.5000/+30.6902+130.4800/+30.7000+130.4639/+30.7006+130.4600/+30.7028+130.4400/+30.7064+130.4200/+30.7200+130.4038/+30.7204+130.4000/+30.7220+130.3800/+30.7367+130.3600/+30.7400+130.3567/+30.7403+130.3400/+30.7451+130.3200/+30.7600+130.3051/+30.7601+130.3000/+30.7800+130.2801/+30.8000+130.2801/+30.8199+130.3000/ 東 40 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+130.3383/+30.7800+130.3373/+30.7639+130.3200/+30.7649+130.3000/+30.7800+130.2849/+30.8000+130.2812/+30.8188+130.3000/ 南東 2 鹿児島県三島村 4630300 2026-10-30T18:00:00+09:00 2026-10-30T21:00:00+09:00 降灰 70 +30.8198+130.3000/+30.8199+130.3200/+30.8017+130.3400/+30.8000+130.3419/+30.7980+130.3600/+30.7800+130.3790/+30.7794+130.3800/+30.7697+130.4000/+30.7600+130.4101/+30.7536+130.4200/+30.7400+130.4351/+30.7367+130.4400/+30.7252+130.4600/+30.7200+130.4676/+30.7134+130.4800/+30.7000+130.4977/+30.6990+130.5000/+30.6912+130.5200/+30.6800+130.5350/+30.6750+130.5400/+30.6639+130.5600/+30.6600+130.5678/+30.6552+130.5800/+30.6431+130.6000/+30.6400+130.6044/+30.6252+130.6200/+30.6200+130.6257/+30.6006+130.6400/+30.6000+130.6413/+30.5915+130.6600/+30.5803+130.6800/+30.5800+130.6805/+30.5685+130.7000/+30.5600+130.7129/+30.5459+130.7000/+30.5400+130.6898/+30.5362+130.6800/+30.5332+130.6600/+30.5310+130.6400/+30.5359+130.6200/+30.5400+130.6070/+30.5417+130.6000/+30.5452+130.5800/+30.5517+130.5600/+30.5593+130.5400/+30.5600+130.5387/+30.5674+130.5200/+30.5800+130.5008/+30.5805+130.5000/+30.6000+130.4845/+30.6022+130.4800/+30.6107+130.4600/+30.6200+130.4493/+30.6252+130.4400/+30.6400+130.4250/+30.6432+130.4200/+30.6600+130.4024/+30.6613+130.4000/+30.6800+130.3810/+30.6806+130.3800/+30.7000+130.3606/+30.7003+130.3600/+30.7200+130.3404/+30.7202+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/+30.8182+130.3200/+30.8000+130.3382/+30.7800+130.3388/+30.7615+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 2026-10-30T21:00:00+09:00 2026-10-31T00:00:00+09:00 降灰 70 +30.8198+130.3000/+30.8199+130.3200/+30.8046+130.3400/+30.8000+130.3446/+30.7985+130.3600/+30.7800+130.3786/+30.7793+130.3800/+30.7667+130.4000/+30.7600+130.4068/+30.7562+130.4200/+30.7400+130.4378/+30.7388+130.4400/+30.7292+130.4600/+30.7200+130.4696/+30.7132+130.4800/+30.7000+130.4958/+30.6975+130.5000/+30.6851+130.5200/+30.6800+130.5257/+30.6695+130.5400/+30.6600+130.5524/+30.6549+130.5600/+30.6444+130.5800/+30.6400+130.5875/+30.6313+130.6000/+30.6200+130.6142/+30.6154+130.6200/+30.6000+130.6376/+30.5980+130.6400/+30.5839+130.6600/+30.5800+130.6637/+30.5600+130.6779/+30.5561+130.6800/+30.5400+130.6958/+30.5355+130.7000/+30.5200+130.7133/+30.5084+130.7200/+30.5000+130.7264/+30.4800+130.7229/+30.4720+130.7200/+30.4600+130.7095/+30.4568+130.7000/+30.4600+130.6962/+30.4670+130.6800/+30.4800+130.6618/+30.4814+130.6600/+30.4912+130.6400/+30.5000+130.6201/+30.5001+130.6200/+30.5100+130.6000/+30.5200+130.5882/+30.5248+130.5800/+30.5400+130.5610/+30.5405+130.5600/+30.5501+130.5400/+30.5600+130.5269/+30.5641+130.5200/+30.5768+130.5000/+30.5800+130.4976/+30.6000+130.4848/+30.6030+130.4800/+30.6133+130.4600/+30.6200+130.4521/+30.6280+130.4400/+30.6400+130.4280/+30.6455+130.4200/+30.6600+130.4057/+30.6638+130.4000/+30.6800+130.3841/+30.6830+130.3800/+30.7000+130.3632/+30.7019+130.3600/+30.7200+130.3419/+30.7207+130.3400/+30.7400+130.3208/+30.7402+130.3200/+30.7600+130.3002/+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/+30.8177+130.3200/+30.8000+130.3377/+30.7800+130.3387/+30.7619+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 2026-10-31T00:00:00+09:00 2026-10-31T03:00:00+09:00 降灰 70 +30.8198+130.3000/+30.8199+130.3200/+30.8000+130.3399/+30.8000+130.3400/+30.7971+130.3600/+30.7800+130.3772/+30.7788+130.3800/+30.7600+130.3997/+30.7598+130.4000/+30.7538+130.4200/+30.7400+130.4350/+30.7377+130.4400/+30.7282+130.4600/+30.7200+130.4695/+30.7155+130.4800/+30.7000+130.4996/+30.6998+130.5000/+30.6899+130.5200/+30.6800+130.5366/+30.6786+130.5400/+30.6698+130.5600/+30.6600+130.5763/+30.6578+130.5800/+30.6478+130.6000/+30.6400+130.6130/+30.6340+130.6200/+30.6200+130.6389/+30.6193+130.6400/+30.6090+130.6600/+30.6000+130.6737/+30.5946+130.6800/+30.5800+130.6999/+30.5800+130.7000/+30.5600+130.7190/+30.5575+130.7200/+30.5400+130.7373/+30.5200+130.7373/+30.5035+130.7200/+30.5040+130.7000/+30.5052+130.6800/+30.5117+130.6600/+30.5191+130.6400/+30.5200+130.6383/+30.5264+130.6200/+30.5325+130.6000/+30.5400+130.5877/+30.5431+130.5800/+30.5494+130.5600/+30.5562+130.5400/+30.5600+130.5319/+30.5644+130.5200/+30.5757+130.5000/+30.5800+130.4966/+30.5977+130.4800/+30.6000+130.4776/+30.6079+130.4600/+30.6200+130.4467/+30.6247+130.4400/+30.6400+130.4248/+30.6429+130.4200/+30.6600+130.4025/+30.6615+130.4000/+30.6800+130.3817/+30.6809+130.3800/+30.7000+130.3605/+30.7003+130.3600/+30.7200+130.3404/+30.7202+130.3400/+30.7400+130.3202/+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/+30.8185+130.3200/+30.8000+130.3385/+30.7800+130.3387/+30.7612+130.3200/+30.7612+130.3000/+30.7800+130.2812/+30.8000+130.2812/+30.8188+130.3000/ 南東 2 鹿児島県三島村 4630300 2026-10-31T03:00:00+09:00 2026-10-31T06:00:00+09:00 降灰 70 +30.8197+130.3000/+30.8198+130.3200/+30.8000+130.3398/+30.7998+130.3400/+30.7800+130.3598/+30.7791+130.3600/+30.7600+130.3791/+30.7574+130.3800/+30.7400+130.3974/+30.7347+130.4000/+30.7200+130.4147/+30.7111+130.4200/+30.7000+130.4312/+30.6879+130.4400/+30.6800+130.4479/+30.6673+130.4600/+30.6600+130.4675/+30.6481+130.4800/+30.6400+130.4882/+30.6244+130.5000/+30.6200+130.5044/+30.6040+130.5200/+30.6000+130.5304/+30.5979+130.5400/+30.5800+130.5595/+30.5793+130.5600/+30.5600+130.5765/+30.5551+130.5800/+30.5400+130.5957/+30.5363+130.6000/+30.5251+130.6200/+30.5200+130.6232/+30.5006+130.6400/+30.5000+130.6411/+30.4835+130.6600/+30.4800+130.6625/+30.4618+130.6800/+30.4600+130.6822/+30.4400+130.6914/+30.4255+130.7000/+30.4200+130.7046/+30.4000+130.7198/+30.3800+130.7148/+30.3656+130.7000/+30.3800+130.6824/+30.3813+130.6800/+30.3892+130.6600/+30.4000+130.6431/+30.4019+130.6400/+30.4194+130.6200/+30.4200+130.6193/+30.4368+130.6000/+30.4400+130.5974/+30.4521+130.5800/+30.4600+130.5702/+30.4694+130.5600/+30.4800+130.5487/+30.4838+130.5400/+30.5000+130.5234/+30.5024+130.5200/+30.5159+130.5000/+30.5200+130.4956/+30.5400+130.4803/+30.5402+130.4800/+30.5600+130.4642/+30.5697+130.4600/+30.5800+130.4502/+30.5942+130.4400/+30.6000+130.4344/+30.6186+130.4200/+30.6200+130.4186/+30.6400+130.4006/+30.6406+130.4000/+30.6600+130.3813/+30.6615+130.3800/+30.6800+130.3617/+30.6820+130.3600/+30.7000+130.3421/+30.7028+130.3400/+30.7200+130.3228/+30.7239+130.3200/+30.7400+130.3039/+30.7512+130.3000/+30.7600+130.2912/+30.7800+130.2801/+30.8000+130.2803/+30.8197+130.3000/ 南東 60 鹿児島県三島村 4630300 鹿児島県屋久島町 4650500 小さな噴石の落下 75 1 +30.8188+130.3000/+30.8000+130.3188/+30.7978+130.3200/+30.7800+130.3378/+30.7611+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 2026-10-31T06:00:00+09:00 2026-10-31T09:00:00+09:00 降灰 70 +30.8197+130.3000/+30.8197+130.3200/+30.8000+130.3397/+30.7991+130.3400/+30.7800+130.3591/+30.7703+130.3600/+30.7600+130.3703/+30.7400+130.3797/+30.7389+130.3800/+30.7200+130.3987/+30.7158+130.4000/+30.7000+130.4157/+30.6870+130.4200/+30.6800+130.4269/+30.6600+130.4392/+30.6580+130.4400/+30.6400+130.4571/+30.6352+130.4600/+30.6200+130.4747/+30.6106+130.4800/+30.6000+130.4904/+30.5923+130.5000/+30.5800+130.5140/+30.5675+130.5200/+30.5600+130.5284/+30.5454+130.5400/+30.5400+130.5437/+30.5200+130.5575/+30.5152+130.5600/+30.5000+130.5755/+30.4948+130.5800/+30.4800+130.5898/+30.4722+130.6000/+30.4600+130.6183/+30.4582+130.6200/+30.4400+130.6340/+30.4250+130.6400/+30.4200+130.6440/+30.4002+130.6600/+30.4000+130.6602/+30.3988+130.6600/+30.3800+130.6552/+30.3651+130.6400/+30.3674+130.6200/+30.3681+130.6000/+30.3762+130.5800/+30.3800+130.5730/+30.3889+130.5600/+30.4000+130.5501/+30.4063+130.5400/+30.4188+130.5200/+30.4200+130.5180/+30.4379+130.5000/+30.4400+130.4987/+30.4600+130.4837/+30.4655+130.4800/+30.4800+130.4725/+30.4941+130.4600/+30.5000+130.4530/+30.5119+130.4400/+30.5200+130.4327/+30.5400+130.4202/+30.5403+130.4200/+30.5600+130.4102/+30.5800+130.4014/+30.5819+130.4000/+30.6000+130.3839/+30.6075+130.3800/+30.6200+130.3693/+30.6400+130.3611/+30.6424+130.3600/+30.6600+130.3445/+30.6800+130.3402/+30.6803+130.3400/+30.7000+130.3215/+30.7094+130.3200/+30.7200+130.3094/+30.7400+130.3003/+30.7410+130.3000/+30.7600+130.2810/+30.7800+130.2801/+30.8000+130.2803/+30.8197+130.3000/ 南東 60 鹿児島県三島村 4630300 鹿児島県屋久島町 4650500 小さな噴石の落下 75 1 +30.8188+130.3000/+30.8000+130.3188/+30.7970+130.3200/+30.7800+130.3370/+30.7613+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、３０日２１時から２４時までは火口から南東方向に降灰が予想されます。 　３０日１５時から３１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 　３０日１５時から１８時まで　東　　　　　　　４０ｋｍ　　２ｋｍ　　　　　 　３０日１８時から２１時まで　南東　　　　　　５０ｋｍ　　２ｋｍ　　　　　 　３０日２１時から２４時まで　南東　　　　　　５０ｋｍ　　２ｋｍ　　　　　 　３１日００時から０３時まで　南東　　　　　　５０ｋｍ　　２ｋｍ　　　　　 　３１日０３時から０６時まで　南東　　　　　　６０ｋｍ　　２ｋｍ　　　　　 　３１日０６時から０９時まで　南東　　　　　　６０ｋｍ　　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、屋久島町 　 　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。