2026-10-05T08:00:00Z 通常 気象庁本庁 気象庁 2026-10-05T17:00:00+09:00 2026-10-05T18:00:00+09:00 2026-10-06T12:00:00+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、６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 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 2026-10-05T18:00:00+09:00 2026-10-05T21:00:00+09:00 降灰 70 +30.8192+130.3000/+30.8189+130.3200/+30.8000+130.3389/+30.7800+130.3399/+30.7794+130.3400/+30.7600+130.3594/+30.7400+130.3599/+30.7362+130.3600/+30.7200+130.3761/+30.7000+130.3796/+30.6827+130.3800/+30.6800+130.3827/+30.6600+130.3987/+30.6400+130.3997/+30.6378+130.4000/+30.6200+130.4164/+30.6000+130.4192/+30.5946+130.4200/+30.5800+130.4333/+30.5600+130.4385/+30.5572+130.4400/+30.5400+130.4568/+30.5200+130.4598/+30.5190+130.4600/+30.5000+130.4782/+30.4965+130.4800/+30.4800+130.4885/+30.4694+130.5000/+30.4600+130.5096/+30.4400+130.5145/+30.4200+130.5191/+30.4155+130.5200/+30.4000+130.5336/+30.3800+130.5392/+30.3600+130.5371/+30.3400+130.5319/+30.3224+130.5200/+30.3200+130.5174/+30.3098+130.5000/+30.3027+130.4800/+30.3000+130.4671/+30.2952+130.4600/+30.2964+130.4400/+30.3000+130.4358/+30.3057+130.4200/+30.3200+130.4072/+30.3400+130.4017/+30.3600+130.4011/+30.3800+130.4013/+30.4000+130.4014/+30.4200+130.4010/+30.4400+130.4006/+30.4600+130.4003/+30.4620+130.4000/+30.4800+130.3881/+30.4900+130.3800/+30.5000+130.3737/+30.5200+130.3662/+30.5393+130.3800/+30.5400+130.3801/+30.5404+130.3800/+30.5600+130.3643/+30.5800+130.3609/+30.5870+130.3600/+30.6000+130.3484/+30.6200+130.3414/+30.6400+130.3402/+30.6410+130.3400/+30.6600+130.3220/+30.6800+130.3203/+30.6840+130.3200/+30.7000+130.3041/+30.7200+130.3002/+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/+30.7972+130.3200/+30.7800+130.3372/+30.7600+130.3294/+30.7473+130.3200/+30.7600+130.3106/+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/+30.7796+130.3400/+30.7600+130.3596/+30.7400+130.3599/+30.7383+130.3600/+30.7200+130.3783/+30.7000+130.3797/+30.6957+130.3800/+30.6800+130.3955/+30.6600+130.3993/+30.6518+130.4000/+30.6400+130.4115/+30.6200+130.4187/+30.6107+130.4200/+30.6000+130.4299/+30.5800+130.4377/+30.5682+130.4400/+30.5600+130.4476/+30.5400+130.4593/+30.5370+130.4600/+30.5200+130.4774/+30.5151+130.4800/+30.5000+130.4886/+30.4800+130.4955/+30.4757+130.5000/+30.4600+130.5156/+30.4400+130.5198/+30.4392+130.5200/+30.4222+130.5400/+30.4200+130.5414/+30.4000+130.5521/+30.3800+130.5509/+30.3600+130.5479/+30.3410+130.5400/+30.3400+130.5396/+30.3200+130.5254/+30.3157+130.5200/+30.3060+130.5000/+30.3030+130.4800/+30.3006+130.4600/+30.3022+130.4400/+30.3135+130.4200/+30.3200+130.4149/+30.3400+130.4073/+30.3600+130.4050/+30.3800+130.4048/+30.4000+130.4046/+30.4200+130.4039/+30.4400+130.4032/+30.4600+130.4032/+30.4800+130.4008/+30.4825+130.4000/+30.5000+130.3835/+30.5053+130.3800/+30.5200+130.3713/+30.5318+130.3800/+30.5400+130.3813/+30.5461+130.3800/+30.5600+130.3693/+30.5800+130.3619/+30.6000+130.3600/+30.6002+130.3600/+30.6200+130.3430/+30.6400+130.3405/+30.6435+130.3400/+30.6600+130.3242/+30.6800+130.3205/+30.6889+130.3200/+30.7000+130.3090/+30.7200+130.3004/+30.7400+130.3001/+30.7403+130.3000/+30.7600+130.2803/+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 +30.7988+130.3000/+30.7976+130.3200/+30.7800+130.3376/+30.7600+130.3240/+30.7542+130.3200/+30.7600+130.3160/+30.7612+130.3000/+30.7800+130.2812/+30.7988+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 +30.8194+130.3000/+30.8191+130.3200/+30.8000+130.3391/+30.7800+130.3399/+30.7787+130.3400/+30.7600+130.3587/+30.7400+130.3598/+30.7218+130.3600/+30.7200+130.3618/+30.7000+130.3790/+30.6800+130.3797/+30.6763+130.3800/+30.6600+130.3955/+30.6400+130.3990/+30.6280+130.4000/+30.6200+130.4075/+30.6000+130.4177/+30.5800+130.4198/+30.5790+130.4200/+30.5600+130.4355/+30.5534+130.4400/+30.5400+130.4534/+30.5200+130.4569/+30.5039+130.4600/+30.5000+130.4641/+30.4800+130.4782/+30.4783+130.4800/+30.4650+130.5000/+30.4600+130.5053/+30.4400+130.5128/+30.4281+130.5200/+30.4200+130.5355/+30.4159+130.5400/+30.4000+130.5523/+30.3874+130.5600/+30.3800+130.5679/+30.3609+130.5800/+30.3600+130.5804/+30.3400+130.5807/+30.3382+130.5800/+30.3200+130.5689/+30.3117+130.5600/+30.3000+130.5404/+30.2997+130.5400/+30.2847+130.5200/+30.2800+130.5097/+30.2766+130.5000/+30.2800+130.4805/+30.2801+130.4800/+30.2845+130.4600/+30.2959+130.4400/+30.3000+130.4365/+30.3119+130.4200/+30.3200+130.4147/+30.3400+130.4080/+30.3600+130.4057/+30.3800+130.4034/+30.4000+130.4020/+30.4200+130.4003/+30.4233+130.4000/+30.4400+130.3949/+30.4600+130.3883/+30.4777+130.3800/+30.4800+130.3789/+30.5000+130.3682/+30.5200+130.3623/+30.5400+130.3648/+30.5600+130.3613/+30.5701+130.3600/+30.5800+130.3517/+30.6000+130.3426/+30.6200+130.3405/+30.6231+130.3400/+30.6400+130.3246/+30.6600+130.3208/+30.6800+130.3201/+30.6805+130.3200/+30.7000+130.3011/+30.7200+130.3002/+30.7292+130.3000/+30.7400+130.2892/+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 +30.8188+130.3000/+30.8000+130.3188/+30.7971+130.3200/+30.7800+130.3371/+30.7600+130.3261/+30.7517+130.3200/+30.7600+130.3139/+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/+30.7784+130.3400/+30.7600+130.3584/+30.7400+130.3598/+30.7200+130.3600/+30.7199+130.3600/+30.7000+130.3786/+30.6800+130.3796/+30.6760+130.3800/+30.6600+130.3947/+30.6400+130.3989/+30.6305+130.4000/+30.6200+130.4093/+30.6000+130.4176/+30.5818+130.4200/+30.5800+130.4216/+30.5600+130.4354/+30.5534+130.4400/+30.5400+130.4531/+30.5200+130.4570/+30.5039+130.4600/+30.5000+130.4638/+30.4800+130.4771/+30.4774+130.4800/+30.4648+130.5000/+30.4600+130.5054/+30.4400+130.5135/+30.4329+130.5200/+30.4248+130.5400/+30.4200+130.5457/+30.4022+130.5600/+30.4000+130.5631/+30.3800+130.5796/+30.3795+130.5800/+30.3600+130.5916/+30.3400+130.5919/+30.3256+130.5800/+30.3200+130.5715/+30.3151+130.5600/+30.3097+130.5400/+30.3058+130.5200/+30.3031+130.5000/+30.3056+130.4800/+30.3092+130.4600/+30.3167+130.4400/+30.3200+130.4353/+30.3394+130.4200/+30.3400+130.4197/+30.3600+130.4136/+30.3800+130.4067/+30.4000+130.4033/+30.4178+130.4000/+30.4200+130.3981/+30.4400+130.3909/+30.4600+130.3846/+30.4714+130.3800/+30.4800+130.3762/+30.5000+130.3657/+30.5166+130.3600/+30.5200+130.3579/+30.5251+130.3600/+30.5400+130.3613/+30.5451+130.3600/+30.5600+130.3500/+30.5800+130.3437/+30.6000+130.3404/+30.6017+130.3400/+30.6200+130.3255/+30.6400+130.3215/+30.6600+130.3201/+30.6609+130.3200/+30.6800+130.3030/+30.7000+130.3006/+30.7200+130.3001/+30.7222+130.3000/+30.7400+130.2823/+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/+30.7977+130.3200/+30.7800+130.3377/+30.7600+130.3243/+30.7538+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 2026-10-06T06:00:00+09:00 2026-10-06T09:00:00+09:00 降灰 70 +30.8194+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/+30.7200+130.3599/+30.7192+130.3600/+30.7000+130.3782/+30.6800+130.3795/+30.6718+130.3800/+30.6600+130.3913/+30.6400+130.3981/+30.6200+130.3995/+30.6164+130.4000/+30.6000+130.4138/+30.5800+130.4183/+30.5677+130.4200/+30.5600+130.4263/+30.5444+130.4400/+30.5400+130.4444/+30.5200+130.4514/+30.5000+130.4556/+30.4800+130.4596/+30.4790+130.4600/+30.4619+130.4800/+30.4600+130.4828/+30.4420+130.5000/+30.4400+130.5011/+30.4293+130.5200/+30.4224+130.5400/+30.4200+130.5443/+30.4078+130.5600/+30.4000+130.5697/+30.3812+130.5800/+30.3800+130.5807/+30.3600+130.5955/+30.3400+130.5976/+30.3284+130.5800/+30.3224+130.5600/+30.3200+130.5454/+30.3193+130.5400/+30.3169+130.5200/+30.3149+130.5000/+30.3125+130.4800/+30.3105+130.4600/+30.3120+130.4400/+30.3199+130.4200/+30.3200+130.4198/+30.3378+130.4000/+30.3400+130.3979/+30.3600+130.3853/+30.3735+130.3800/+30.3800+130.3782/+30.4000+130.3741/+30.4200+130.3712/+30.4400+130.3742/+30.4600+130.3701/+30.4800+130.3655/+30.5000+130.3606/+30.5017+130.3600/+30.5200+130.3506/+30.5350+130.3600/+30.5400+130.3607/+30.5432+130.3600/+30.5600+130.3479/+30.5800+130.3425/+30.6000+130.3404/+30.6027+130.3400/+30.6200+130.3260/+30.6400+130.3216/+30.6600+130.3203/+30.6637+130.3200/+30.6800+130.3049/+30.7000+130.3006/+30.7200+130.3001/+30.7243+130.3000/+30.7400+130.2843/+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 +30.8188+130.3000/+30.8000+130.3188/+30.7975+130.3200/+30.7800+130.3375/+30.7600+130.3263/+30.7512+130.3200/+30.7600+130.3137/+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 2026-10-06T09:00:00+09:00 2026-10-06T12:00:00+09:00 降灰 70 +30.8194+130.3000/+30.8192+130.3200/+30.8000+130.3392/+30.7807+130.3400/+30.7800+130.3407/+30.7600+130.3598/+30.7505+130.3600/+30.7400+130.3705/+30.7200+130.3796/+30.7128+130.3800/+30.7000+130.3928/+30.6800+130.3993/+30.6753+130.4000/+30.6600+130.4151/+30.6400+130.4193/+30.6367+130.4200/+30.6200+130.4358/+30.6005+130.4400/+30.6000+130.4405/+30.5800+130.4569/+30.5685+130.4600/+30.5614+130.4800/+30.5600+130.4815/+30.5400+130.4919/+30.5216+130.5000/+30.5200+130.5013/+30.5000+130.5130/+30.4858+130.5200/+30.4800+130.5286/+30.4752+130.5400/+30.4600+130.5544/+30.4439+130.5600/+30.4400+130.5638/+30.4282+130.5800/+30.4200+130.5867/+30.4000+130.5954/+30.3840+130.6000/+30.3800+130.6043/+30.3600+130.6189/+30.3400+130.6194/+30.3200+130.6057/+30.3148+130.6000/+30.3000+130.5833/+30.2965+130.5800/+30.2826+130.5600/+30.2803+130.5400/+30.2849+130.5200/+30.2905+130.5000/+30.3000+130.4896/+30.3057+130.4800/+30.3200+130.4668/+30.3344+130.4600/+30.3400+130.4569/+30.3600+130.4506/+30.3800+130.4450/+30.4000+130.4406/+30.4023+130.4400/+30.4200+130.4273/+30.4400+130.4200/+30.4600+130.4215/+30.4642+130.4200/+30.4800+130.4130/+30.5000+130.4053/+30.5148+130.4000/+30.5200+130.3944/+30.5400+130.3907/+30.5600+130.3826/+30.5692+130.3800/+30.5800+130.3707/+30.6000+130.3624/+30.6164+130.3600/+30.6200+130.3568/+30.6400+130.3425/+30.6600+130.3401/+30.6605+130.3400/+30.6800+130.3216/+30.7000+130.3202/+30.7007+130.3200/+30.7200+130.3009/+30.7400+130.3001/+30.7405+130.3000/+30.7600+130.2805/+30.7800+130.2801/+30.8000+130.2806/+30.8194+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/+30.7975+130.3200/+30.7800+130.3375/+30.7600+130.3274/+30.7522+130.3200/+30.7600+130.3146/+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、６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。 　５日１８時から６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 　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　　　　　 　０６日０６時から０９時まで　南　　　　　　　６０ｋｍ　　４ｋｍ　　　　　 　０６日０９時から１２時まで　南東　　　　　　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。