2026-10-30T14:00:00Z 通常 気象庁本庁 気象庁 2026-10-30T23:00:00+09:00 2026-10-31T00:00:00+09:00 2026-10-31T18:00:00+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 2026-10-31T00:00:00+09:00 2026-10-31T03:00:00+09:00 降灰 70 +30.8198+130.3000/+30.8199+130.3200/+30.8095+130.3400/+30.8000+130.3495/+30.7990+130.3600/+30.7800+130.3791/+30.7796+130.3800/+30.7731+130.4000/+30.7600+130.4135/+30.7581+130.4200/+30.7409+130.4400/+30.7400+130.4409/+30.7358+130.4600/+30.7200+130.4789/+30.7195+130.4800/+30.7133+130.5000/+30.7000+130.5178/+30.6990+130.5200/+30.6874+130.5400/+30.6800+130.5497/+30.6764+130.5600/+30.6704+130.5800/+30.6600+130.5977/+30.6586+130.6000/+30.6481+130.6200/+30.6400+130.6338/+30.6351+130.6400/+30.6247+130.6600/+30.6200+130.6703/+30.6152+130.6800/+30.6000+130.7000/+30.5800+130.7173/+30.5777+130.7200/+30.5651+130.7400/+30.5600+130.7464/+30.5400+130.7472/+30.5341+130.7400/+30.5200+130.7273/+30.5171+130.7200/+30.5200+130.7110/+30.5249+130.7000/+30.5287+130.6800/+30.5358+130.6600/+30.5400+130.6472/+30.5423+130.6400/+30.5486+130.6200/+30.5585+130.6000/+30.5600+130.5967/+30.5656+130.5800/+30.5737+130.5600/+30.5800+130.5480/+30.5833+130.5400/+30.6000+130.5227/+30.6009+130.5200/+30.6109+130.5000/+30.6200+130.4888/+30.6233+130.4800/+30.6398+130.4600/+30.6400+130.4597/+30.6475+130.4400/+30.6600+130.4268/+30.6628+130.4200/+30.6800+130.4016/+30.6807+130.4000/+30.6939+130.3800/+30.7000+130.3740/+30.7047+130.3600/+30.7200+130.3447/+30.7213+130.3400/+30.7400+130.3213/+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/+30.8180+130.3200/+30.8000+130.3380/+30.7800+130.3387/+30.7616+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 2026-10-31T03:00:00+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/+30.7793+130.3600/+30.7600+130.3793/+30.7584+130.3800/+30.7400+130.3985/+30.7377+130.4000/+30.7200+130.4178/+30.7170+130.4200/+30.7000+130.4372/+30.6961+130.4400/+30.6800+130.4565/+30.6757+130.4600/+30.6600+130.4766/+30.6569+130.4800/+30.6400+130.4977/+30.6378+130.5000/+30.6200+130.5198/+30.6198+130.5200/+30.6086+130.5400/+30.6000+130.5516/+30.5921+130.5600/+30.5800+130.5730/+30.5701+130.5800/+30.5600+130.5926/+30.5535+130.6000/+30.5400+130.6160/+30.5348+130.6200/+30.5200+130.6311/+30.5083+130.6400/+30.5000+130.6504/+30.4903+130.6600/+30.4800+130.6680/+30.4638+130.6800/+30.4600+130.6846/+30.4400+130.6969/+30.4346+130.7000/+30.4200+130.7090/+30.4068+130.7200/+30.4000+130.7272/+30.3914+130.7200/+30.3833+130.7000/+30.3962+130.6800/+30.4000+130.6738/+30.4088+130.6600/+30.4180+130.6400/+30.4200+130.6371/+30.4292+130.6200/+30.4400+130.6087/+30.4473+130.6000/+30.4598+130.5800/+30.4600+130.5797/+30.4735+130.5600/+30.4800+130.5529/+30.4858+130.5400/+30.5000+130.5252/+30.5040+130.5200/+30.5195+130.5000/+30.5200+130.4994/+30.5400+130.4808/+30.5405+130.4800/+30.5600+130.4644/+30.5654+130.4600/+30.5800+130.4453/+30.5845+130.4400/+30.6000+130.4257/+30.6075+130.4200/+30.6200+130.4084/+30.6347+130.4000/+30.6400+130.3948/+30.6600+130.3805/+30.6605+130.3800/+30.6800+130.3610/+30.6810+130.3600/+30.7000+130.3414/+30.7017+130.3400/+30.7200+130.3218/+30.7226+130.3200/+30.7400+130.3026/+30.7483+130.3000/+30.7600+130.2883/+30.7800+130.2801/+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/+30.8000+130.3188/+30.7980+130.3200/+30.7800+130.3389/+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 2026-10-31T06:00:00+09:00 2026-10-31T09:00:00+09:00 降灰 70 +30.8197+130.3000/+30.8197+130.3200/+30.8000+130.3397/+30.7989+130.3400/+30.7800+130.3589/+30.7625+130.3600/+30.7600+130.3625/+30.7400+130.3796/+30.7378+130.3800/+30.7200+130.3976/+30.7109+130.4000/+30.7000+130.4110/+30.6800+130.4199/+30.6797+130.4200/+30.6600+130.4378/+30.6543+130.4400/+30.6400+130.4538/+30.6262+130.4600/+30.6200+130.4658/+30.6000+130.4797/+30.5994+130.4800/+30.5855+130.5000/+30.5800+130.5061/+30.5600+130.5175/+30.5556+130.5200/+30.5400+130.5344/+30.5319+130.5400/+30.5200+130.5500/+30.5042+130.5600/+30.5000+130.5652/+30.4836+130.5800/+30.4800+130.5821/+30.4607+130.6000/+30.4600+130.6012/+30.4423+130.6200/+30.4400+130.6222/+30.4200+130.6381/+30.4173+130.6400/+30.4000+130.6530/+30.3800+130.6490/+30.3630+130.6400/+30.3607+130.6200/+30.3602+130.6000/+30.3676+130.5800/+30.3768+130.5600/+30.3800+130.5540/+30.3928+130.5400/+30.4000+130.5359/+30.4094+130.5200/+30.4200+130.5033/+30.4234+130.5000/+30.4400+130.4899/+30.4543+130.4800/+30.4600+130.4756/+30.4800+130.4659/+30.4875+130.4600/+30.5000+130.4464/+30.5065+130.4400/+30.5200+130.4284/+30.5340+130.4200/+30.5400+130.4167/+30.5600+130.4095/+30.5800+130.4004/+30.5807+130.4000/+30.6000+130.3834/+30.6073+130.3800/+30.6200+130.3695/+30.6400+130.3608/+30.6417+130.3600/+30.6600+130.3439/+30.6770+130.3400/+30.6800+130.3372/+30.7000+130.3213/+30.7068+130.3200/+30.7200+130.3069/+30.7400+130.3003/+30.7409+130.3000/+30.7600+130.2809/+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/+30.7969+130.3200/+30.7800+130.3369/+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 2026-10-31T09:00:00+09:00 2026-10-31T12:00:00+09:00 降灰 70 +30.8197+130.3000/+30.8196+130.3200/+30.8000+130.3396/+30.7800+130.3400/+30.7798+130.3400/+30.7600+130.3596/+30.7400+130.3599/+30.7394+130.3600/+30.7200+130.3788/+30.7000+130.3799/+30.6992+130.3800/+30.6800+130.3979/+30.6600+130.4000/+30.6599+130.4000/+30.6400+130.4170/+30.6229+130.4200/+30.6200+130.4227/+30.6000+130.4361/+30.5858+130.4400/+30.5800+130.4452/+30.5600+130.4563/+30.5507+130.4600/+30.5400+130.4726/+30.5274+130.4800/+30.5200+130.4850/+30.5000+130.4955/+30.4899+130.5000/+30.4800+130.5058/+30.4647+130.5200/+30.4600+130.5277/+30.4468+130.5400/+30.4400+130.5438/+30.4200+130.5561/+30.4143+130.5600/+30.4000+130.5763/+30.3800+130.5741/+30.3600+130.5705/+30.3443+130.5600/+30.3400+130.5538/+30.3345+130.5400/+30.3316+130.5200/+30.3291+130.5000/+30.3368+130.4800/+30.3400+130.4735/+30.3450+130.4600/+30.3600+130.4428/+30.3623+130.4400/+30.3800+130.4242/+30.3889+130.4200/+30.4000+130.4163/+30.4200+130.4112/+30.4400+130.4082/+30.4600+130.4079/+30.4800+130.4046/+30.4925+130.4000/+30.5000+130.3934/+30.5200+130.3800/+30.5400+130.3826/+30.5472+130.3800/+30.5600+130.3701/+30.5800+130.3633/+30.6000+130.3603/+30.6013+130.3600/+30.6200+130.3450/+30.6400+130.3409/+30.6465+130.3400/+30.6600+130.3278/+30.6800+130.3209/+30.6951+130.3200/+30.7000+130.3152/+30.7200+130.3006/+30.7400+130.3001/+30.7402+130.3000/+30.7600+130.2803/+30.7800+130.2800/+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/+30.7957+130.3200/+30.7800+130.3357/+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/+30.7798+130.3400/+30.7600+130.3597/+30.7400+130.3599/+30.7393+130.3600/+30.7200+130.3789/+30.7000+130.3798/+30.6988+130.3800/+30.6800+130.3978/+30.6600+130.3998/+30.6588+130.4000/+30.6400+130.4170/+30.6235+130.4200/+30.6200+130.4233/+30.6000+130.4364/+30.5812+130.4400/+30.5800+130.4411/+30.5600+130.4563/+30.5513+130.4600/+30.5400+130.4748/+30.5301+130.4800/+30.5200+130.4861/+30.5000+130.4967/+30.4938+130.5000/+30.4800+130.5097/+30.4681+130.5200/+30.4600+130.5323/+30.4511+130.5400/+30.4400+130.5458/+30.4200+130.5589/+30.4184+130.5600/+30.4019+130.5800/+30.4000+130.5813/+30.3800+130.5816/+30.3600+130.5820/+30.3515+130.5800/+30.3400+130.5767/+30.3219+130.5600/+30.3200+130.5569/+30.3120+130.5400/+30.3062+130.5200/+30.3019+130.5000/+30.3048+130.4800/+30.3090+130.4600/+30.3196+130.4400/+30.3200+130.4395/+30.3400+130.4252/+30.3544+130.4200/+30.3600+130.4184/+30.3800+130.4144/+30.4000+130.4119/+30.4200+130.4098/+30.4400+130.4081/+30.4600+130.4086/+30.4800+130.4052/+30.4950+130.4000/+30.5000+130.3951/+30.5200+130.3804/+30.5400+130.3835/+30.5528+130.3800/+30.5600+130.3742/+30.5800+130.3644/+30.6000+130.3608/+30.6032+130.3600/+30.6200+130.3463/+30.6400+130.3412/+30.6493+130.3400/+30.6600+130.3300/+30.6800+130.3210/+30.7000+130.3200/+30.7200+130.3006/+30.7400+130.3001/+30.7402+130.3000/+30.7600+130.2803/+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/+30.7961+130.3200/+30.7800+130.3360/+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/+30.7794+130.3400/+30.7600+130.3593/+30.7400+130.3599/+30.7370+130.3600/+30.7200+130.3768/+30.7000+130.3795/+30.6940+130.3800/+30.6800+130.3934/+30.6600+130.3988/+30.6488+130.4000/+30.6400+130.4081/+30.6200+130.4176/+30.6089+130.4200/+30.6000+130.4280/+30.5800+130.4370/+30.5669+130.4400/+30.5600+130.4454/+30.5400+130.4583/+30.5329+130.4600/+30.5200+130.4718/+30.5032+130.4800/+30.5000+130.4818/+30.4800+130.4913/+30.4713+130.5000/+30.4600+130.5121/+30.4400+130.5198/+30.4395+130.5200/+30.4200+130.5388/+30.4181+130.5400/+30.4000+130.5510/+30.3800+130.5425/+30.3753+130.5400/+30.3600+130.5324/+30.3445+130.5200/+30.3400+130.5145/+30.3296+130.5000/+30.3200+130.4847/+30.3178+130.4800/+30.3107+130.4600/+30.3113+130.4400/+30.3200+130.4232/+30.3225+130.4200/+30.3400+130.4064/+30.3530+130.4000/+30.3600+130.3958/+30.3800+130.3957/+30.4000+130.3956/+30.4200+130.3953/+30.4400+130.3965/+30.4600+130.3958/+30.4800+130.3868/+30.4920+130.3800/+30.5000+130.3755/+30.5200+130.3665/+30.5400+130.3677/+30.5600+130.3625/+30.5731+130.3600/+30.5800+130.3549/+30.6000+130.3441/+30.6200+130.3408/+30.6249+130.3400/+30.6400+130.3278/+30.6600+130.3216/+30.6800+130.3201/+30.6808+130.3200/+30.7000+130.3022/+30.7200+130.3003/+30.7291+130.3000/+30.7400+130.2891/+30.7600+130.2802/+30.7800+130.2800/+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/+30.7960+130.3200/+30.7800+130.3360/+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 　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方向に降灰が予想されます。 　３１日０時から３１日１８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　　　　　 　３１日０９時から１２時まで　南　　　　　　　６０ｋｍ　　２ｋｍ　　　　　 　３１日１２時から１５時まで　南　　　　　　　６０ｋｍ　　２ｋｍ　　　　　 　３１日１５時から１８時まで　南　　　　　　　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。