2026-10-05T02:00:00Z 通常 気象庁本庁 気象庁 2026-10-05T11:00:00+09:00 2026-10-05T12:00:00+09:00 2026-10-06T06:00:00+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 2026-10-05T12:00:00+09:00 2026-10-05T15:00:00+09:00 降灰 70 +30.8193+130.3000/+30.8191+130.3200/+30.8000+130.3391/+30.7800+130.3400/+30.7600+130.3598/+30.7530+130.3600/+30.7400+130.3730/+30.7200+130.3797/+30.7155+130.3800/+30.7000+130.3955/+30.6800+130.3996/+30.6772+130.4000/+30.6600+130.4168/+30.6400+130.4198/+30.6394+130.4200/+30.6200+130.4378/+30.6102+130.4400/+30.6000+130.4499/+30.5800+130.4587/+30.5762+130.4600/+30.5700+130.4800/+30.5600+130.4912/+30.5400+130.4975/+30.5356+130.5000/+30.5200+130.5130/+30.5026+130.5200/+30.5000+130.5233/+30.4907+130.5400/+30.4800+130.5491/+30.4699+130.5600/+30.4600+130.5789/+30.4589+130.5800/+30.4400+130.5905/+30.4297+130.6000/+30.4210+130.6200/+30.4200+130.6214/+30.4000+130.6328/+30.3800+130.6354/+30.3600+130.6384/+30.3400+130.6361/+30.3213+130.6200/+30.3200+130.6179/+30.3127+130.6000/+30.3075+130.5800/+30.3036+130.5600/+30.3028+130.5400/+30.3050+130.5200/+30.3089+130.5000/+30.3200+130.4853/+30.3264+130.4800/+30.3400+130.4724/+30.3600+130.4646/+30.3800+130.4664/+30.4000+130.4603/+30.4004+130.4600/+30.4200+130.4509/+30.4400+130.4469/+30.4600+130.4407/+30.4612+130.4400/+30.4800+130.4289/+30.4923+130.4200/+30.5000+130.4138/+30.5200+130.4040/+30.5400+130.4022/+30.5504+130.4000/+30.5600+130.3916/+30.5800+130.3819/+30.5864+130.3800/+30.6000+130.3675/+30.6200+130.3609/+30.6238+130.3600/+30.6400+130.3448/+30.6600+130.3405/+30.6622+130.3400/+30.6800+130.3226/+30.7000+130.3202/+30.7012+130.3200/+30.7200+130.3013/+30.7400+130.3001/+30.7406+130.3000/+30.7600+130.2806/+30.7800+130.2801/+30.8000+130.2807/+30.8193+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 +30.7988+130.3000/+30.7972+130.3200/+30.7800+130.3372/+30.7600+130.3291/+30.7494+130.3200/+30.7600+130.3128/+30.7612+130.3000/+30.7800+130.2812/+30.7988+130.3000/ 南 4 鹿児島県三島村 4630300 2026-10-05T15:00:00+09:00 2026-10-05T18:00:00+09:00 降灰 70 +30.8192+130.3000/+30.8188+130.3200/+30.8000+130.3388/+30.7800+130.3399/+30.7795+130.3400/+30.7600+130.3595/+30.7400+130.3599/+30.7377+130.3600/+30.7200+130.3776/+30.7000+130.3797/+30.6923+130.3800/+30.6800+130.3922/+30.6600+130.3991/+30.6418+130.4000/+30.6400+130.4018/+30.6200+130.4179/+30.6000+130.4199/+30.5994+130.4200/+30.5800+130.4365/+30.5600+130.4398/+30.5595+130.4400/+30.5400+130.4585/+30.5332+130.4600/+30.5200+130.4755/+30.5134+130.4800/+30.5000+130.4887/+30.4800+130.4959/+30.4762+130.5000/+30.4600+130.5167/+30.4450+130.5200/+30.4400+130.5249/+30.4246+130.5400/+30.4200+130.5427/+30.4000+130.5526/+30.3800+130.5492/+30.3600+130.5414/+30.3574+130.5400/+30.3400+130.5316/+30.3260+130.5200/+30.3200+130.5116/+30.3145+130.5000/+30.3056+130.4800/+30.3000+130.4606/+30.2994+130.4600/+30.3000+130.4400/+30.3105+130.4200/+30.3200+130.4132/+30.3400+130.4070/+30.3600+130.4055/+30.3800+130.4053/+30.4000+130.4051/+30.4200+130.4041/+30.4400+130.4033/+30.4600+130.4033/+30.4800+130.4011/+30.4828+130.4000/+30.5000+130.3811/+30.5014+130.3800/+30.5200+130.3684/+30.5361+130.3800/+30.5400+130.3805/+30.5420+130.3800/+30.5600+130.3652/+30.5800+130.3613/+30.5899+130.3600/+30.6000+130.3507/+30.6200+130.3417/+30.6400+130.3403/+30.6413+130.3400/+30.6600+130.3223/+30.6800+130.3204/+30.6853+130.3200/+30.7000+130.3054/+30.7200+130.3003/+30.7400+130.3000/+30.7402+130.3000/+30.7600+130.2803/+30.7800+130.2801/+30.8000+130.2808/+30.8192+130.3000/ 南 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 +30.7988+130.3000/+30.7974+130.3200/+30.7800+130.3374/+30.7600+130.3280/+30.7483+130.3200/+30.7600+130.3120/+30.7612+130.3000/+30.7800+130.2812/+30.7988+130.3000/ 南 4 鹿児島県三島村 4630300 2026-10-05T18:00:00+09:00 2026-10-05T21:00:00+09:00 降灰 70 +30.8192+130.3000/+30.8188+130.3200/+30.8000+130.3388/+30.7800+130.3399/+30.7789+130.3400/+30.7600+130.3589/+30.7400+130.3598/+30.7262+130.3600/+30.7200+130.3662/+30.7000+130.3792/+30.6800+130.3798/+30.6772+130.3800/+30.6600+130.3965/+30.6400+130.3992/+30.6293+130.4000/+30.6200+130.4091/+30.6000+130.4178/+30.5800+130.4198/+30.5790+130.4200/+30.5600+130.4354/+30.5538+130.4400/+30.5400+130.4537/+30.5200+130.4567/+30.5000+130.4597/+30.4987+130.4600/+30.4800+130.4751/+30.4744+130.4800/+30.4600+130.4987/+30.4584+130.5000/+30.4400+130.5086/+30.4200+130.5131/+30.4000+130.5158/+30.3841+130.5200/+30.3800+130.5240/+30.3673+130.5200/+30.3600+130.5171/+30.3400+130.5041/+30.3361+130.5000/+30.3200+130.4923/+30.3085+130.4800/+30.3007+130.4600/+30.3000+130.4492/+30.2973+130.4400/+30.3000+130.4352/+30.3028+130.4200/+30.3153+130.4000/+30.3200+130.3955/+30.3400+130.3830/+30.3600+130.3846/+30.3800+130.3859/+30.4000+130.3873/+30.4200+130.3833/+30.4400+130.3872/+30.4600+130.3835/+30.4700+130.3800/+30.4800+130.3758/+30.5000+130.3669/+30.5200+130.3620/+30.5400+130.3648/+30.5600+130.3614/+30.5728+130.3600/+30.5800+130.3537/+30.6000+130.3427/+30.6200+130.3405/+30.6250+130.3400/+30.6400+130.3264/+30.6600+130.3209/+30.6800+130.3202/+30.6809+130.3200/+30.7000+130.3014/+30.7200+130.3002/+30.7335+130.3000/+30.7400+130.2935/+30.7600+130.2802/+30.7800+130.2801/+30.8000+130.2808/+30.8192+130.3000/ 南 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 +30.7988+130.3000/+30.7966+130.3200/+30.7800+130.3366/+30.7600+130.3273/+30.7495+130.3200/+30.7600+130.3126/+30.7612+130.3000/+30.7800+130.2812/+30.7988+130.3000/ 南 4 鹿児島県三島村 4630300 2026-10-05T21:00:00+09:00 2026-10-06T00:00:00+09:00 降灰 70 +30.8194+130.3000/+30.8191+130.3200/+30.8000+130.3391/+30.7800+130.3399/+30.7786+130.3400/+30.7600+130.3586/+30.7400+130.3598/+30.7216+130.3600/+30.7200+130.3616/+30.7000+130.3789/+30.6800+130.3797/+30.6750+130.3800/+30.6600+130.3943/+30.6400+130.3988/+30.6265+130.4000/+30.6200+130.4062/+30.6000+130.4168/+30.5800+130.4192/+30.5745+130.4200/+30.5600+130.4313/+30.5497+130.4400/+30.5400+130.4497/+30.5200+130.4548/+30.5000+130.4579/+30.4878+130.4600/+30.4800+130.4661/+30.4600+130.4792/+30.4579+130.4800/+30.4400+130.4953/+30.4305+130.5000/+30.4200+130.5038/+30.4000+130.5086/+30.3800+130.5099/+30.3660+130.5000/+30.3600+130.4979/+30.3400+130.4943/+30.3200+130.4851/+30.3141+130.4800/+30.3025+130.4600/+30.3000+130.4400/+30.3011+130.4200/+30.3032+130.4000/+30.3200+130.3820/+30.3231+130.3800/+30.3400+130.3723/+30.3600+130.3729/+30.3800+130.3720/+30.4000+130.3713/+30.4200+130.3708/+30.4400+130.3767/+30.4600+130.3726/+30.4800+130.3674/+30.5000+130.3625/+30.5091+130.3600/+30.5200+130.3538/+30.5291+130.3600/+30.5400+130.3614/+30.5551+130.3600/+30.5600+130.3570/+30.5800+130.3448/+30.6000+130.3412/+30.6163+130.3400/+30.6200+130.3369/+30.6400+130.3226/+30.6600+130.3206/+30.6761+130.3200/+30.6800+130.3163/+30.7000+130.3010/+30.7200+130.3002/+30.7273+130.3000/+30.7400+130.2873/+30.7600+130.2802/+30.7800+130.2801/+30.8000+130.2806/+30.8194+130.3000/ 南 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 +30.8178+130.3000/+30.8000+130.3178/+30.7962+130.3200/+30.7800+130.3362/+30.7600+130.3244/+30.7538+130.3200/+30.7600+130.3156/+30.7612+130.3000/+30.7800+130.2812/+30.8000+130.2822/+30.8178+130.3000/ 南 4 鹿児島県三島村 4630300 2026-10-06T00:00:00+09:00 2026-10-06T03:00:00+09:00 降灰 70 +30.8195+130.3000/+30.8192+130.3200/+30.8000+130.3392/+30.7800+130.3399/+30.7784+130.3400/+30.7600+130.3584/+30.7400+130.3598/+30.7231+130.3600/+30.7200+130.3631/+30.7000+130.3789/+30.6800+130.3797/+30.6767+130.3800/+30.6600+130.3958/+30.6400+130.3990/+30.6305+130.4000/+30.6200+130.4099/+30.6000+130.4179/+30.5876+130.4200/+30.5800+130.4270/+30.5600+130.4367/+30.5546+130.4400/+30.5400+130.4540/+30.5200+130.4582/+30.5122+130.4600/+30.5000+130.4717/+30.4839+130.4800/+30.4800+130.4821/+30.4664+130.5000/+30.4600+130.5066/+30.4400+130.5134/+30.4296+130.5200/+30.4200+130.5379/+30.4181+130.5400/+30.4000+130.5538/+30.3892+130.5600/+30.3800+130.5692/+30.3607+130.5800/+30.3600+130.5803/+30.3400+130.5804/+30.3388+130.5800/+30.3200+130.5697/+30.3104+130.5600/+30.3000+130.5426/+30.2977+130.5400/+30.2837+130.5200/+30.2800+130.5119/+30.2758+130.5000/+30.2796+130.4800/+30.2800+130.4782/+30.2844+130.4600/+30.2961+130.4400/+30.3000+130.4367/+30.3132+130.4200/+30.3200+130.4157/+30.3400+130.4087/+30.3600+130.4061/+30.3800+130.4031/+30.4000+130.4014/+30.4128+130.4000/+30.4200+130.3949/+30.4400+130.3906/+30.4600+130.3860/+30.4772+130.3800/+30.4800+130.3789/+30.5000+130.3691/+30.5200+130.3626/+30.5400+130.3644/+30.5600+130.3609/+30.5657+130.3600/+30.5800+130.3490/+30.6000+130.3420/+30.6200+130.3401/+30.6206+130.3400/+30.6400+130.3234/+30.6600+130.3207/+30.6745+130.3200/+30.6800+130.3145/+30.7000+130.3009/+30.7200+130.3002/+30.7246+130.3000/+30.7400+130.2846/+30.7600+130.2802/+30.7800+130.2801/+30.8000+130.2805/+30.8195+130.3000/ 南 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/+30.7975+130.3200/+30.7800+130.3375/+30.7600+130.3248/+30.7535+130.3200/+30.7600+130.3152/+30.7612+130.3000/+30.7800+130.2812/+30.8000+130.2812/+30.8188+130.3000/ 南 4 鹿児島県三島村 4630300 2026-10-06T03:00:00+09:00 2026-10-06T06:00:00+09:00 降灰 70 +30.8195+130.3000/+30.8192+130.3200/+30.8000+130.3392/+30.7800+130.3399/+30.7782+130.3400/+30.7600+130.3582/+30.7400+130.3598/+30.7271+130.3600/+30.7200+130.3671/+30.7000+130.3786/+30.6800+130.3798/+30.6782+130.3800/+30.6600+130.3964/+30.6400+130.3995/+30.6370+130.4000/+30.6200+130.4143/+30.6000+130.4187/+30.5929+130.4200/+30.5800+130.4303/+30.5600+130.4373/+30.5557+130.4400/+30.5400+130.4554/+30.5200+130.4597/+30.5187+130.4600/+30.5000+130.4751/+30.4898+130.4800/+30.4800+130.4853/+30.4697+130.5000/+30.4600+130.5128/+30.4458+130.5200/+30.4400+130.5260/+30.4349+130.5400/+30.4230+130.5600/+30.4200+130.5673/+30.4122+130.5800/+30.4000+130.5902/+30.3822+130.6000/+30.3800+130.6028/+30.3603+130.6200/+30.3600+130.6202/+30.3550+130.6200/+30.3400+130.6194/+30.3233+130.6000/+30.3248+130.5800/+30.3262+130.5600/+30.3255+130.5400/+30.3232+130.5200/+30.3212+130.5000/+30.3238+130.4800/+30.3272+130.4600/+30.3366+130.4400/+30.3400+130.4364/+30.3580+130.4200/+30.3600+130.4190/+30.3800+130.4081/+30.4000+130.4037/+30.4173+130.4000/+30.4200+130.3978/+30.4400+130.3912/+30.4600+130.3862/+30.4774+130.3800/+30.4800+130.3789/+30.5000+130.3683/+30.5200+130.3614/+30.5400+130.3635/+30.5600+130.3604/+30.5615+130.3600/+30.5800+130.3460/+30.6000+130.3415/+30.6130+130.3400/+30.6200+130.3336/+30.6400+130.3225/+30.6600+130.3206/+30.6673+130.3200/+30.6800+130.3078/+30.7000+130.3007/+30.7200+130.3002/+30.7242+130.3000/+30.7400+130.2842/+30.7600+130.2802/+30.7800+130.2801/+30.8000+130.2805/+30.8195+130.3000/ 南 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/+30.7979+130.3200/+30.7800+130.3379/+30.7600+130.3242/+30.7542+130.3200/+30.7600+130.3157/+30.7612+130.3000/+30.7800+130.2812/+30.8000+130.2812/+30.8188+130.3000/ 南 4 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　南東　　　　　　６０ｋｍ　　４ｋｍ　　　　　 　０５日１５時から１８時まで　南　　　　　　　６０ｋｍ　　４ｋｍ　　　　　 　０５日１８時から２１時まで　南　　　　　　　６０ｋｍ　　４ｋｍ　　　　　 　０５日２１時から２４時まで　南　　　　　　　６０ｋｍ　　４ｋｍ　　　　　 　０６日００時から０３時まで　南　　　　　　　６０ｋｍ　　４ｋｍ　　　　　 　０６日０３時から０６時まで　南　　　　　　　６０ｋｍ　　４ｋｍ　　　　　 　 　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。