2026-10-30T17:00:00Z 通常 気象庁本庁 気象庁 2026-10-31T02:00:00+09:00 2026-10-31T03:00:00+09:00 2026-10-31T21:00:00+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 2026-10-31T03:00:00+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+130.3599/+30.7797+130.3600/+30.7600+130.3799/+30.7599+130.3800/+30.7432+130.4000/+30.7400+130.4032/+30.7303+130.4200/+30.7200+130.4305/+30.7128+130.4400/+30.7000+130.4532/+30.6945+130.4600/+30.6800+130.4754/+30.6763+130.4800/+30.6600+130.4985/+30.6588+130.5000/+30.6400+130.5199/+30.6399+130.5200/+30.6267+130.5400/+30.6200+130.5543/+30.6171+130.5600/+30.6000+130.5752/+30.5950+130.5800/+30.5811+130.6000/+30.5800+130.6014/+30.5613+130.6200/+30.5600+130.6213/+30.5428+130.6400/+30.5400+130.6447/+30.5276+130.6600/+30.5200+130.6663/+30.5014+130.6800/+30.5000+130.6818/+30.4800+130.6958/+30.4684+130.7000/+30.4600+130.7072/+30.4400+130.7106/+30.4304+130.7000/+30.4378+130.6800/+30.4400+130.6719/+30.4437+130.6600/+30.4514+130.6400/+30.4600+130.6285/+30.4654+130.6200/+30.4765+130.6000/+30.4800+130.5958/+30.4874+130.5800/+30.4951+130.5600/+30.5000+130.5538/+30.5106+130.5400/+30.5200+130.5292/+30.5279+130.5200/+30.5400+130.5067/+30.5427+130.5000/+30.5527+130.4800/+30.5600+130.4737/+30.5800+130.4654/+30.5845+130.4600/+30.6000+130.4447/+30.6040+130.4400/+30.6200+130.4245/+30.6239+130.4200/+30.6400+130.4044/+30.6440+130.4000/+30.6600+130.3843/+30.6647+130.3800/+30.6800+130.3650/+30.6851+130.3600/+30.7000+130.3451/+30.7069+130.3400/+30.7200+130.3269/+30.7295+130.3200/+30.7400+130.3095/+30.7600+130.3000/+30.7800+130.2801/+30.8000+130.2803/+30.8197+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/+30.8178+130.3200/+30.8000+130.3378/+30.7800+130.3388/+30.7610+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 2026-10-31T06:00:00+09:00 2026-10-31T09:00:00+09:00 降灰 70 +30.8197+130.3000/+30.8197+130.3200/+30.8000+130.3397/+30.7994+130.3400/+30.7800+130.3594/+30.7754+130.3600/+30.7600+130.3754/+30.7400+130.3800/+30.7399+130.3800/+30.7200+130.3994/+30.7184+130.4000/+30.7000+130.4182/+30.6955+130.4200/+30.6800+130.4354/+30.6696+130.4400/+30.6600+130.4493/+30.6437+130.4600/+30.6400+130.4637/+30.6200+130.4791/+30.6187+130.4800/+30.6000+130.4987/+30.5984+130.5000/+30.5812+130.5200/+30.5800+130.5218/+30.5619+130.5400/+30.5600+130.5417/+30.5400+130.5560/+30.5344+130.5600/+30.5200+130.5772/+30.5156+130.5800/+30.5000+130.5916/+30.4895+130.6000/+30.4800+130.6094/+30.4713+130.6200/+30.4600+130.6310/+30.4470+130.6400/+30.4400+130.6475/+30.4264+130.6600/+30.4200+130.6655/+30.4000+130.6781/+30.3800+130.6755/+30.3600+130.6675/+30.3544+130.6600/+30.3580+130.6400/+30.3600+130.6375/+30.3693+130.6200/+30.3761+130.6000/+30.3800+130.5932/+30.3907+130.5800/+30.4000+130.5723/+30.4108+130.5600/+30.4200+130.5486/+30.4279+130.5400/+30.4400+130.5313/+30.4488+130.5200/+30.4600+130.5027/+30.4632+130.5000/+30.4800+130.4899/+30.4902+130.4800/+30.5000+130.4725/+30.5151+130.4600/+30.5200+130.4541/+30.5357+130.4400/+30.5400+130.4369/+30.5600+130.4255/+30.5660+130.4200/+30.5800+130.4078/+30.5938+130.4000/+30.6000+130.3944/+30.6200+130.3821/+30.6238+130.3800/+30.6400+130.3654/+30.6519+130.3600/+30.6600+130.3523/+30.6800+130.3411/+30.6822+130.3400/+30.7000+130.3230/+30.7200+130.3200/+30.7400+130.3004/+30.7415+130.3000/+30.7600+130.2815/+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/+30.7977+130.3200/+30.7800+130.3377/+30.7609+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 2026-10-31T09:00:00+09:00 2026-10-31T12:00:00+09:00 降灰 70 +30.8197+130.3000/+30.8196+130.3200/+30.8000+130.3396/+30.7807+130.3400/+30.7800+130.3407/+30.7600+130.3598/+30.7484+130.3600/+30.7400+130.3684/+30.7200+130.3794/+30.7115+130.3800/+30.7000+130.3914/+30.6800+130.3991/+30.6744+130.4000/+30.6600+130.4136/+30.6400+130.4192/+30.6367+130.4200/+30.6200+130.4348/+30.6000+130.4396/+30.5987+130.4400/+30.5800+130.4561/+30.5654+130.4600/+30.5600+130.4707/+30.5538+130.4800/+30.5400+130.4880/+30.5200+130.4984/+30.5168+130.5000/+30.5000+130.5101/+30.4800+130.5200/+30.4719+130.5400/+30.4600+130.5523/+30.4428+130.5600/+30.4400+130.5628/+30.4285+130.5800/+30.4200+130.5899/+30.4044+130.6000/+30.4000+130.6044/+30.3800+130.6034/+30.3600+130.6021/+30.3564+130.6000/+30.3492+130.5800/+30.3465+130.5600/+30.3469+130.5400/+30.3492+130.5200/+30.3513+130.5000/+30.3600+130.4818/+30.3608+130.4800/+30.3764+130.4600/+30.3800+130.4573/+30.4000+130.4457/+30.4103+130.4400/+30.4200+130.4319/+30.4400+130.4223/+30.4600+130.4219/+30.4666+130.4200/+30.4800+130.4155/+30.5000+130.4046/+30.5127+130.4000/+30.5200+130.3933/+30.5400+130.3915/+30.5600+130.3823/+30.5703+130.3800/+30.5800+130.3729/+30.6000+130.3625/+30.6128+130.3600/+30.6200+130.3538/+30.6400+130.3425/+30.6600+130.3401/+30.6603+130.3400/+30.6800+130.3219/+30.7000+130.3202/+30.7008+130.3200/+30.7200+130.3011/+30.7400+130.3001/+30.7403+130.3000/+30.7600+130.2803/+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/+30.7967+130.3200/+30.7800+130.3367/+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 2026-10-31T12:00:00+09:00 2026-10-31T15:00:00+09:00 降灰 70 +30.8197+130.3000/+30.8196+130.3200/+30.8000+130.3396/+30.7800+130.3400/+30.7600+130.3598/+30.7474+130.3600/+30.7400+130.3674/+30.7200+130.3794/+30.7106+130.3800/+30.7000+130.3905/+30.6800+130.3991/+30.6744+130.4000/+30.6600+130.4138/+30.6400+130.4194/+30.6379+130.4200/+30.6200+130.4363/+30.6025+130.4400/+30.6000+130.4424/+30.5800+130.4573/+30.5722+130.4600/+30.5617+130.4800/+30.5600+130.4819/+30.5400+130.4924/+30.5236+130.5000/+30.5200+130.5032/+30.5000+130.5170/+30.4953+130.5200/+30.4800+130.5375/+30.4784+130.5400/+30.4600+130.5563/+30.4522+130.5600/+30.4400+130.5725/+30.4341+130.5800/+30.4200+130.5961/+30.4147+130.6000/+30.4000+130.6141/+30.3800+130.6130/+30.3600+130.6114/+30.3424+130.6000/+30.3400+130.5956/+30.3354+130.5800/+30.3306+130.5600/+30.3309+130.5400/+30.3367+130.5200/+30.3400+130.5106/+30.3424+130.5000/+30.3537+130.4800/+30.3600+130.4729/+30.3774+130.4600/+30.3800+130.4585/+30.4000+130.4483/+30.4200+130.4408/+30.4236+130.4400/+30.4400+130.4319/+30.4600+130.4268/+30.4800+130.4202/+30.4802+130.4200/+30.5000+130.4082/+30.5200+130.4016/+30.5358+130.4000/+30.5400+130.3987/+30.5600+130.3839/+30.5746+130.3800/+30.5800+130.3757/+30.6000+130.3636/+30.6200+130.3603/+30.6208+130.3600/+30.6400+130.3428/+30.6600+130.3404/+30.6612+130.3400/+30.6800+130.3221/+30.7000+130.3203/+30.7009+130.3200/+30.7200+130.3011/+30.7400+130.3001/+30.7403+130.3000/+30.7600+130.2803/+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/+30.7966+130.3200/+30.7800+130.3366/+30.7610+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 2026-10-31T15:00:00+09:00 2026-10-31T18:00:00+09:00 降灰 70 +30.8197+130.3000/+30.8195+130.3200/+30.8000+130.3395/+30.7800+130.3400/+30.7796+130.3400/+30.7600+130.3595/+30.7400+130.3599/+30.7383+130.3600/+30.7200+130.3779/+30.7000+130.3796/+30.6968+130.3800/+30.6800+130.3960/+30.6600+130.3993/+30.6561+130.4000/+30.6400+130.4148/+30.6200+130.4194/+30.6174+130.4200/+30.6000+130.4340/+30.5800+130.4390/+30.5763+130.4400/+30.5600+130.4522/+30.5449+130.4600/+30.5400+130.4664/+30.5200+130.4793/+30.5188+130.4800/+30.5000+130.4922/+30.4839+130.5000/+30.4800+130.5025/+30.4621+130.5200/+30.4600+130.5234/+30.4422+130.5400/+30.4400+130.5412/+30.4200+130.5547/+30.4115+130.5600/+30.4000+130.5743/+30.3800+130.5710/+30.3600+130.5668/+30.3487+130.5600/+30.3400+130.5547/+30.3280+130.5400/+30.3200+130.5292/+30.3146+130.5200/+30.3056+130.5000/+30.3045+130.4800/+30.3035+130.4600/+30.3079+130.4400/+30.3200+130.4255/+30.3279+130.4200/+30.3400+130.4143/+30.3600+130.4085/+30.3800+130.4063/+30.4000+130.4048/+30.4200+130.4040/+30.4400+130.4033/+30.4600+130.4027/+30.4722+130.4000/+30.4800+130.3953/+30.5000+130.3805/+30.5009+130.3800/+30.5200+130.3691/+30.5400+130.3723/+30.5600+130.3637/+30.5800+130.3603/+30.5811+130.3600/+30.6000+130.3468/+30.6200+130.3415/+30.6299+130.3400/+30.6400+130.3314/+30.6600+130.3219/+30.6800+130.3203/+30.6818+130.3200/+30.7000+130.3029/+30.7200+130.3003/+30.7330+130.3000/+30.7400+130.2930/+30.7600+130.2802/+30.7800+130.2801/+30.8000+130.2803/+30.8197+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/+30.7959+130.3200/+30.7800+130.3359/+30.7601+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 2026-10-31T18:00:00+09:00 2026-10-31T21:00:00+09:00 降灰 70 +30.8197+130.3000/+30.8195+130.3200/+30.8000+130.3395/+30.7800+130.3399/+30.7600+130.3400/+30.7584+130.3400/+30.7400+130.3577/+30.7200+130.3592/+30.7000+130.3596/+30.6907+130.3600/+30.6800+130.3695/+30.6600+130.3762/+30.6400+130.3781/+30.6200+130.3794/+30.6147+130.3800/+30.6000+130.3889/+30.5800+130.3942/+30.5600+130.3968/+30.5400+130.3987/+30.5326+130.4000/+30.5200+130.4090/+30.5000+130.4115/+30.4800+130.4126/+30.4600+130.4126/+30.4409+130.4200/+30.4400+130.4204/+30.4200+130.4209/+30.4000+130.4214/+30.3957+130.4200/+30.3800+130.4132/+30.3629+130.4000/+30.3600+130.3979/+30.3400+130.3824/+30.3364+130.3800/+30.3200+130.3682/+30.3100+130.3600/+30.3077+130.3400/+30.3200+130.3308/+30.3400+130.3218/+30.3507+130.3200/+30.3600+130.3185/+30.3800+130.3173/+30.4000+130.3163/+30.4200+130.3126/+30.4400+130.3122/+30.4600+130.3111/+30.4800+130.3103/+30.5000+130.3047/+30.5200+130.3009/+30.5400+130.3036/+30.5600+130.3030/+30.5800+130.3020/+30.6000+130.3004/+30.6082+130.3000/+30.6200+130.2962/+30.6400+130.2893/+30.6600+130.2864/+30.6800+130.2831/+30.7000+130.2814/+30.7200+130.2806/+30.7400+130.2802/+30.7600+130.2801/+30.7800+130.2800/+30.8000+130.2803/+30.8197+130.3000/ 南 50 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/+30.7934+130.3200/+30.7800+130.3334/+30.7614+130.3200/+30.7604+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３時から３１日２１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０３時から０６時まで　南東　　　　　　５０ｋｍ　　２ｋｍ　　　　　 　３１日０６時から０９時まで　南東　　　　　　６０ｋｍ　　２ｋｍ　　　　　 　３１日０９時から１２時まで　南東　　　　　　６０ｋｍ　　２ｋｍ　　　　　 　３１日１２時から１５時まで　南東　　　　　　６０ｋｍ　　２ｋｍ　　　　　 　３１日１５時から１８時まで　南　　　　　　　６０ｋｍ　　２ｋｍ　　　　　 　３１日１８時から２１時まで　南　　　　　　　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、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。