2026-07-30T20:00:00Z 通常 気象庁本庁 気象庁 2026-07-31T05:00:00+09:00 2026-07-31T06:00:00+09:00 2026-08-01T00:00:00+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、３１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 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 小さな噴石の落下 75 鹿児島県三島村 4630300 2026-07-31T06:00:00+09:00 2026-07-31T09:00:00+09:00 降灰 70 +30.8198+130.3000/+30.8199+130.3200/+30.8152+130.3400/+30.8000+130.3552/+30.7995+130.3600/+30.7800+130.3796/+30.7798+130.3800/+30.7767+130.4000/+30.7600+130.4172/+30.7591+130.4200/+30.7531+130.4400/+30.7400+130.4542/+30.7384+130.4600/+30.7318+130.4800/+30.7200+130.4935/+30.7177+130.5000/+30.7107+130.5200/+30.7000+130.5328/+30.6971+130.5400/+30.6897+130.5600/+30.6800+130.5732/+30.6770+130.5800/+30.6747+130.6000/+30.6600+130.6164/+30.6578+130.6200/+30.6486+130.6400/+30.6400+130.6572/+30.6380+130.6600/+30.6240+130.6800/+30.6200+130.6875/+30.6119+130.7000/+30.6000+130.7122/+30.5903+130.7200/+30.5800+130.7353/+30.5769+130.7400/+30.5600+130.7577/+30.5477+130.7600/+30.5400+130.7628/+30.5365+130.7600/+30.5298+130.7400/+30.5288+130.7200/+30.5351+130.7000/+30.5388+130.6800/+30.5400+130.6764/+30.5465+130.6600/+30.5573+130.6400/+30.5600+130.6368/+30.5672+130.6200/+30.5781+130.6000/+30.5800+130.5966/+30.5874+130.5800/+30.6000+130.5650/+30.6017+130.5600/+30.6169+130.5400/+30.6200+130.5369/+30.6245+130.5200/+30.6359+130.5000/+30.6400+130.4953/+30.6448+130.4800/+30.6600+130.4615/+30.6605+130.4600/+30.6679+130.4400/+30.6800+130.4273/+30.6817+130.4200/+30.7000+130.4002/+30.7000+130.4000/+30.7034+130.3800/+30.7200+130.3632/+30.7205+130.3600/+30.7376+130.3400/+30.7400+130.3376/+30.7405+130.3200/+30.7600+130.3005/+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/+30.8183+130.3200/+30.8000+130.3383/+30.7800+130.3384/+30.7628+130.3200/+30.7613+130.3000/+30.7800+130.2813/+30.8000+130.2812/+30.8188+130.3000/ 南東 2 鹿児島県三島村 4630300 2026-07-31T09:00:00+09:00 2026-07-31T12:00:00+09:00 降灰 70 +30.8198+130.3000/+30.8199+130.3200/+30.8193+130.3400/+30.8000+130.3594/+30.7999+130.3600/+30.7991+130.3800/+30.7909+130.4000/+30.7800+130.4117/+30.7792+130.4200/+30.7765+130.4400/+30.7655+130.4600/+30.7600+130.4665/+30.7577+130.4800/+30.7521+130.5000/+30.7400+130.5177/+30.7393+130.5200/+30.7357+130.5400/+30.7281+130.5600/+30.7200+130.5730/+30.7171+130.5800/+30.7094+130.6000/+30.7012+130.6200/+30.7000+130.6223/+30.6898+130.6400/+30.6800+130.6532/+30.6753+130.6600/+30.6609+130.6800/+30.6600+130.6828/+30.6541+130.7000/+30.6400+130.7164/+30.6365+130.7200/+30.6248+130.7400/+30.6200+130.7486/+30.6137+130.7600/+30.6045+130.7800/+30.6000+130.7882/+30.5816+130.7800/+30.5800+130.7793/+30.5674+130.7600/+30.5638+130.7400/+30.5667+130.7200/+30.5722+130.7000/+30.5760+130.6800/+30.5800+130.6652/+30.5816+130.6600/+30.5938+130.6400/+30.6000+130.6285/+30.6024+130.6200/+30.6071+130.6000/+30.6119+130.5800/+30.6199+130.5600/+30.6200+130.5598/+30.6348+130.5400/+30.6400+130.5321/+30.6426+130.5200/+30.6485+130.5000/+30.6600+130.4846/+30.6613+130.4800/+30.6677+130.4600/+30.6800+130.4455/+30.6812+130.4400/+30.6875+130.4200/+30.7000+130.4071/+30.7014+130.4000/+30.7133+130.3800/+30.7200+130.3733/+30.7212+130.3600/+30.7400+130.3408/+30.7401+130.3400/+30.7411+130.3200/+30.7600+130.3011/+30.7602+130.3000/+30.7800+130.2802/+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/+30.8184+130.3200/+30.8000+130.3384/+30.7800+130.3385/+30.7630+130.3200/+30.7619+130.3000/+30.7800+130.2819/+30.8000+130.2812/+30.8188+130.3000/ 南東 2 鹿児島県三島村 4630300 2026-07-31T12:00:00+09:00 2026-07-31T15:00:00+09:00 降灰 70 +30.8198+130.3000/+30.8199+130.3200/+30.8192+130.3400/+30.8000+130.3592/+30.7999+130.3600/+30.7988+130.3800/+30.7800+130.3994/+30.7798+130.4000/+30.7788+130.4200/+30.7715+130.4400/+30.7600+130.4526/+30.7589+130.4600/+30.7560+130.4800/+30.7438+130.5000/+30.7400+130.5046/+30.7372+130.5200/+30.7312+130.5400/+30.7200+130.5545/+30.7182+130.5600/+30.7160+130.5800/+30.7122+130.6000/+30.7047+130.6200/+30.7000+130.6292/+30.6952+130.6400/+30.6875+130.6600/+30.6800+130.6735/+30.6767+130.6800/+30.6682+130.7000/+30.6600+130.7168/+30.6579+130.7200/+30.6450+130.7400/+30.6400+130.7450/+30.6283+130.7600/+30.6200+130.7758/+30.6165+130.7800/+30.6000+130.7998/+30.5800+130.7902/+30.5736+130.7800/+30.5661+130.7600/+30.5691+130.7400/+30.5728+130.7200/+30.5766+130.7000/+30.5800+130.6811/+30.5802+130.6800/+30.5889+130.6600/+30.6000+130.6497/+30.6038+130.6400/+30.6085+130.6200/+30.6144+130.6000/+30.6200+130.5884/+30.6226+130.5800/+30.6400+130.5607/+30.6403+130.5600/+30.6448+130.5400/+30.6533+130.5200/+30.6600+130.5111/+30.6624+130.5000/+30.6688+130.4800/+30.6800+130.4668/+30.6813+130.4600/+30.6865+130.4400/+30.7000+130.4250/+30.7008+130.4200/+30.7043+130.4000/+30.7200+130.3835/+30.7204+130.3800/+30.7229+130.3600/+30.7400+130.3428/+30.7401+130.3400/+30.7421+130.3200/+30.7600+130.3021/+30.7602+130.3000/+30.7800+130.2802/+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/+30.8187+130.3200/+30.8000+130.3387/+30.7800+130.3391/+30.7622+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 2026-07-31T15:00:00+09:00 2026-07-31T18:00:00+09:00 降灰 70 +30.8197+130.3000/+30.8199+130.3200/+30.8004+130.3400/+30.8000+130.3403/+30.7986+130.3600/+30.7800+130.3786/+30.7794+130.3800/+30.7600+130.3999/+30.7599+130.4000/+30.7565+130.4200/+30.7400+130.4370/+30.7388+130.4400/+30.7293+130.4600/+30.7200+130.4695/+30.7167+130.4800/+30.7000+130.4990/+30.6995+130.5000/+30.6942+130.5200/+30.6800+130.5375/+30.6788+130.5400/+30.6731+130.5600/+30.6634+130.5800/+30.6600+130.5858/+30.6558+130.6000/+30.6468+130.6200/+30.6400+130.6294/+30.6323+130.6400/+30.6230+130.6600/+30.6200+130.6690/+30.6158+130.6800/+30.6000+130.6994/+30.5995+130.7000/+30.5853+130.7200/+30.5800+130.7335/+30.5768+130.7400/+30.5647+130.7600/+30.5600+130.7682/+30.5440+130.7800/+30.5400+130.7831/+30.5224+130.8000/+30.5200+130.8039/+30.5097+130.8200/+30.5000+130.8345/+30.4834+130.8200/+30.4800+130.8001/+30.4800+130.8000/+30.4833+130.7800/+30.4859+130.7600/+30.4934+130.7400/+30.5000+130.7320/+30.5057+130.7200/+30.5164+130.7000/+30.5200+130.6958/+30.5258+130.6800/+30.5308+130.6600/+30.5364+130.6400/+30.5400+130.6314/+30.5467+130.6200/+30.5600+130.6063/+30.5627+130.6000/+30.5706+130.5800/+30.5800+130.5601/+30.5800+130.5600/+30.5920+130.5400/+30.6000+130.5342/+30.6111+130.5200/+30.6200+130.5097/+30.6227+130.5000/+30.6372+130.4800/+30.6400+130.4770/+30.6445+130.4600/+30.6600+130.4432/+30.6611+130.4400/+30.6736+130.4200/+30.6800+130.4135/+30.6833+130.4000/+30.7000+130.3831/+30.7008+130.3800/+30.7200+130.3603/+30.7201+130.3600/+30.7228+130.3400/+30.7400+130.3228/+30.7403+130.3200/+30.7600+130.3003/+30.7602+130.3000/+30.7800+130.2802/+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/+30.8185+130.3200/+30.8000+130.3385/+30.7800+130.3396/+30.7616+130.3200/+30.7618+130.3000/+30.7800+130.2818/+30.8000+130.2812/+30.8188+130.3000/ 南東 2 鹿児島県三島村 4630300 2026-07-31T18:00:00+09:00 2026-07-31T21:00:00+09:00 降灰 70 +30.8198+130.3000/+30.8199+130.3200/+30.8125+130.3400/+30.8000+130.3525/+30.7992+130.3600/+30.7800+130.3792/+30.7796+130.3800/+30.7710+130.4000/+30.7600+130.4111/+30.7579+130.4200/+30.7400+130.4389/+30.7395+130.4400/+30.7333+130.4600/+30.7200+130.4745/+30.7179+130.4800/+30.7029+130.5000/+30.7000+130.5033/+30.6955+130.5200/+30.6800+130.5399/+30.6800+130.5400/+30.6731+130.5600/+30.6646+130.5800/+30.6600+130.5881/+30.6559+130.6000/+30.6463+130.6200/+30.6400+130.6289/+30.6320+130.6400/+30.6212+130.6600/+30.6200+130.6632/+30.6125+130.6800/+30.6000+130.6988/+30.5991+130.7000/+30.5870+130.7200/+30.5800+130.7340/+30.5761+130.7400/+30.5600+130.7581/+30.5523+130.7600/+30.5400+130.7667/+30.5268+130.7600/+30.5201+130.7400/+30.5200+130.7399/+30.5130+130.7200/+30.5200+130.7061/+30.5234+130.7000/+30.5302+130.6800/+30.5355+130.6600/+30.5400+130.6448/+30.5415+130.6400/+30.5534+130.6200/+30.5600+130.6130/+30.5646+130.6000/+30.5715+130.5800/+30.5800+130.5637/+30.5818+130.5600/+30.5980+130.5400/+30.6000+130.5386/+30.6156+130.5200/+30.6200+130.5139/+30.6231+130.5000/+30.6400+130.4803/+30.6401+130.4800/+30.6485+130.4600/+30.6600+130.4477/+30.6621+130.4400/+30.6800+130.4204/+30.6801+130.4200/+30.6860+130.4000/+30.7000+130.3858/+30.7012+130.3800/+30.7200+130.3609/+30.7202+130.3600/+30.7254+130.3400/+30.7400+130.3254/+30.7404+130.3200/+30.7600+130.3004/+30.7602+130.3000/+30.7800+130.2801/+30.8000+130.2802/+30.8198+130.3000/ +30.5018+130.8000/+30.5000+130.8040/+30.4987+130.8000/+30.5000+130.7958/+30.5018+130.8000/ 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/+30.8175+130.3200/+30.8000+130.3374/+30.7800+130.3389/+30.7619+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 2026-07-31T21:00:00+09:00 2026-08-01T00:00:00+09:00 降灰 70 +30.8198+130.3000/+30.8199+130.3200/+30.8130+130.3400/+30.8000+130.3530/+30.7992+130.3600/+30.7800+130.3792/+30.7796+130.3800/+30.7713+130.4000/+30.7600+130.4115/+30.7576+130.4200/+30.7400+130.4389/+30.7394+130.4400/+30.7303+130.4600/+30.7200+130.4712/+30.7161+130.4800/+30.7000+130.4988/+30.6993+130.5000/+30.6901+130.5200/+30.6800+130.5333/+30.6767+130.5400/+30.6607+130.5600/+30.6600+130.5611/+30.6536+130.5800/+30.6432+130.6000/+30.6400+130.6046/+30.6285+130.6200/+30.6200+130.6298/+30.6107+130.6400/+30.6000+130.6590/+30.5991+130.6600/+30.5816+130.6800/+30.5800+130.6833/+30.5689+130.7000/+30.5600+130.7090/+30.5400+130.7193/+30.5393+130.7200/+30.5200+130.7320/+30.5060+130.7200/+30.5084+130.7000/+30.5102+130.6800/+30.5200+130.6632/+30.5218+130.6600/+30.5285+130.6400/+30.5358+130.6200/+30.5400+130.6151/+30.5492+130.6000/+30.5581+130.5800/+30.5600+130.5769/+30.5672+130.5600/+30.5771+130.5400/+30.5800+130.5359/+30.6000+130.5203/+30.6001+130.5200/+30.6101+130.5000/+30.6200+130.4890/+30.6246+130.4800/+30.6400+130.4628/+30.6412+130.4600/+30.6531+130.4400/+30.6600+130.4329/+30.6661+130.4200/+30.6800+130.4061/+30.6822+130.4000/+30.7000+130.3817/+30.7006+130.3800/+30.7200+130.3602/+30.7200+130.3600/+30.7238+130.3400/+30.7400+130.3238/+30.7403+130.3200/+30.7600+130.3003/+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+130.3380/+30.7626+130.3200/+30.7615+130.3000/+30.7800+130.2815/+30.8000+130.2812/+30.8188+130.3000/ 南東 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、３１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。 　３１日６時から３１日２４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０６時から０９時まで　南東　　　　　　５０ｋｍ　　２ｋｍ　　　　　 　３１日０９時から１２時まで　南東　　　　　　５０ｋｍ　　２ｋｍ　　　　　 　３１日１２時から１５時まで　南東　　　　　　５０ｋｍ　　２ｋｍ　　　　　 　３１日１５時から１８時まで　南東　　　　　　６０ｋｍ　　２ｋｍ　　　　　 　３１日１８時から２１時まで　南東　　　　　　６０ｋｍ　　２ｋｍ　　　　　 　３１日２１時から２４時まで　南東　　　　　　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 　 　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。