2026-07-30T23:00:00Z 通常 気象庁本庁 気象庁 2026-07-31T08:00:00+09:00 2026-07-31T09:00:00+09:00 2026-08-01T03:00:00+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 鹿児島県中種子町 4650100 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 鹿児島県中種子町 4650100 小さな噴石の落下 75 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/+30.8192+130.3400/+30.8000+130.3592/+30.7999+130.3600/+30.7988+130.3800/+30.7800+130.3998/+30.7800+130.4000/+30.7787+130.4200/+30.7726+130.4400/+30.7600+130.4556/+30.7592+130.4600/+30.7558+130.4800/+30.7459+130.5000/+30.7400+130.5086/+30.7375+130.5200/+30.7321+130.5400/+30.7200+130.5581/+30.7192+130.5600/+30.7141+130.5800/+30.7086+130.6000/+30.7000+130.6192/+30.6995+130.6200/+30.6912+130.6400/+30.6808+130.6600/+30.6800+130.6613/+30.6697+130.6800/+30.6600+130.6983/+30.6589+130.7000/+30.6400+130.7200/+30.6268+130.7400/+30.6200+130.7493/+30.6114+130.7600/+30.6000+130.7794/+30.5961+130.7800/+30.5800+130.7861/+30.5730+130.8000/+30.5600+130.8180/+30.5400+130.8111/+30.5378+130.8000/+30.5400+130.7940/+30.5516+130.7800/+30.5593+130.7600/+30.5569+130.7400/+30.5600+130.7329/+30.5644+130.7200/+30.5704+130.7000/+30.5738+130.6800/+30.5791+130.6600/+30.5800+130.6584/+30.5900+130.6400/+30.6000+130.6228/+30.6009+130.6200/+30.6065+130.6000/+30.6126+130.5800/+30.6200+130.5617/+30.6205+130.5600/+30.6396+130.5400/+30.6400+130.5395/+30.6449+130.5200/+30.6558+130.5000/+30.6600+130.4953/+30.6642+130.4800/+30.6795+130.4600/+30.6800+130.4594/+30.6837+130.4400/+30.7000+130.4208/+30.7002+130.4200/+30.7030+130.4000/+30.7200+130.3822/+30.7203+130.3800/+30.7228+130.3600/+30.7400+130.3427/+30.7401+130.3400/+30.7422+130.3200/+30.7600+130.3022/+30.7602+130.3000/+30.7800+130.2802/+30.8000+130.2802/+30.8198+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/+30.8184+130.3200/+30.8000+130.3384/+30.7800+130.3389/+30.7625+130.3200/+30.7621+130.3000/+30.7800+130.2821/+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/+30.8188+130.3400/+30.8000+130.3588/+30.7998+130.3600/+30.7981+130.3800/+30.7800+130.3985/+30.7796+130.4000/+30.7776+130.4200/+30.7632+130.4400/+30.7600+130.4435/+30.7580+130.4600/+30.7490+130.4800/+30.7400+130.4908/+30.7379+130.5000/+30.7329+130.5200/+30.7200+130.5385/+30.7195+130.5400/+30.7148+130.5600/+30.7064+130.5800/+30.7064+130.6000/+30.7000+130.6125/+30.6962+130.6200/+30.6851+130.6400/+30.6800+130.6508/+30.6765+130.6600/+30.6656+130.6800/+30.6604+130.7000/+30.6600+130.7009/+30.6477+130.7200/+30.6400+130.7316/+30.6344+130.7400/+30.6228+130.7600/+30.6200+130.7674/+30.6133+130.7800/+30.6008+130.8000/+30.6000+130.8013/+30.5860+130.8000/+30.5800+130.7989/+30.5688+130.7800/+30.5661+130.7600/+30.5675+130.7400/+30.5694+130.7200/+30.5738+130.7000/+30.5778+130.6800/+30.5800+130.6714/+30.5834+130.6600/+30.5962+130.6400/+30.6000+130.6347/+30.6045+130.6200/+30.6091+130.6000/+30.6145+130.5800/+30.6200+130.5675/+30.6228+130.5600/+30.6400+130.5435/+30.6410+130.5400/+30.6459+130.5200/+30.6600+130.5018/+30.6605+130.5000/+30.6641+130.4800/+30.6761+130.4600/+30.6800+130.4558/+30.6826+130.4400/+30.6964+130.4200/+30.7000+130.4163/+30.7020+130.4000/+30.7200+130.3807/+30.7201+130.3800/+30.7214+130.3600/+30.7400+130.3411/+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/+30.8186+130.3200/+30.8000+130.3386/+30.7800+130.3391/+30.7621+130.3200/+30.7620+130.3000/+30.7800+130.2820/+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/+30.8082+130.3400/+30.8000+130.3482/+30.7990+130.3600/+30.7800+130.3790/+30.7796+130.3800/+30.7692+130.4000/+30.7600+130.4092/+30.7581+130.4200/+30.7400+130.4394/+30.7397+130.4400/+30.7351+130.4600/+30.7200+130.4765/+30.7186+130.4800/+30.7115+130.5000/+30.7000+130.5135/+30.6978+130.5200/+30.6879+130.5400/+30.6800+130.5493/+30.6760+130.5600/+30.6709+130.5800/+30.6606+130.6000/+30.6600+130.6006/+30.6534+130.6200/+30.6420+130.6400/+30.6400+130.6446/+30.6338+130.6600/+30.6272+130.6800/+30.6200+130.6977/+30.6187+130.7000/+30.6000+130.7192/+30.5991+130.7200/+30.5893+130.7400/+30.5800+130.7568/+30.5773+130.7600/+30.5629+130.7800/+30.5600+130.7835/+30.5400+130.7936/+30.5200+130.7943/+30.5128+130.8000/+30.5128+130.8200/+30.5128+130.8400/+30.5095+130.8600/+30.5024+130.8800/+30.5000+130.8863/+30.4917+130.8800/+30.4800+130.8602/+30.4799+130.8600/+30.4800+130.8597/+30.4828+130.8400/+30.4912+130.8200/+30.4973+130.8000/+30.5000+130.7926/+30.5109+130.7800/+30.5113+130.7600/+30.5141+130.7400/+30.5200+130.7265/+30.5218+130.7200/+30.5272+130.7000/+30.5311+130.6800/+30.5373+130.6600/+30.5400+130.6533/+30.5469+130.6400/+30.5600+130.6204/+30.5601+130.6200/+30.5669+130.6000/+30.5758+130.5800/+30.5800+130.5716/+30.5850+130.5600/+30.6000+130.5413/+30.6004+130.5400/+30.6176+130.5200/+30.6200+130.5173/+30.6256+130.5000/+30.6400+130.4819/+30.6405+130.4800/+30.6473+130.4600/+30.6600+130.4462/+30.6619+130.4400/+30.6800+130.4202/+30.6801+130.4200/+30.6851+130.4000/+30.7000+130.3850/+30.7011+130.3800/+30.7200+130.3606/+30.7201+130.3600/+30.7238+130.3400/+30.7400+130.3238/+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 鹿児島県中種子町 4650100 小さな噴石の落下 75 1 +30.8188+130.3000/+30.8187+130.3200/+30.8000+130.3387/+30.7800+130.3393/+30.7618+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 2026-07-31T18:00:00+09:00 2026-07-31T21:00:00+09:00 降灰 70 +30.8198+130.3000/+30.8199+130.3200/+30.8105+130.3400/+30.8000+130.3505/+30.7991+130.3600/+30.7800+130.3791/+30.7795+130.3800/+30.7674+130.4000/+30.7600+130.4075/+30.7574+130.4200/+30.7400+130.4383/+30.7392+130.4400/+30.7309+130.4600/+30.7200+130.4720/+30.7173+130.4800/+30.7030+130.5000/+30.7000+130.5034/+30.6947+130.5200/+30.6800+130.5383/+30.6791+130.5400/+30.6689+130.5600/+30.6600+130.5781/+30.6595+130.5800/+30.6529+130.6000/+30.6406+130.6200/+30.6400+130.6209/+30.6274+130.6400/+30.6200+130.6530/+30.6166+130.6600/+30.6029+130.6800/+30.6000+130.6837/+30.5901+130.7000/+30.5800+130.7162/+30.5776+130.7200/+30.5655+130.7400/+30.5600+130.7471/+30.5400+130.7510/+30.5278+130.7400/+30.5200+130.7354/+30.5120+130.7200/+30.5185+130.7000/+30.5200+130.6972/+30.5249+130.6800/+30.5317+130.6600/+30.5381+130.6400/+30.5400+130.6342/+30.5450+130.6200/+30.5579+130.6000/+30.5600+130.5969/+30.5679+130.5800/+30.5777+130.5600/+30.5800+130.5563/+30.5899+130.5400/+30.6000+130.5330/+30.6069+130.5200/+30.6200+130.5030/+30.6213+130.5000/+30.6328+130.4800/+30.6400+130.4723/+30.6444+130.4600/+30.6600+130.4425/+30.6609+130.4400/+30.6749+130.4200/+30.6800+130.4149/+30.6838+130.4000/+30.7000+130.3834/+30.7009+130.3800/+30.7200+130.3606/+30.7201+130.3600/+30.7244+130.3400/+30.7400+130.3244/+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/+30.8180+130.3200/+30.8000+130.3380/+30.7800+130.3389/+30.7620+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 2026-07-31T21:00:00+09:00 2026-08-01T00:00:00+09:00 降灰 70 +30.8198+130.3000/+30.8199+130.3200/+30.8000+130.3399/+30.8000+130.3400/+30.7963+130.3600/+30.7800+130.3763/+30.7783+130.3800/+30.7600+130.3985/+30.7590+130.4000/+30.7404+130.4200/+30.7400+130.4204/+30.7337+130.4400/+30.7200+130.4547/+30.7168+130.4600/+30.7000+130.4786/+30.6992+130.4800/+30.6907+130.5000/+30.6800+130.5130/+30.6762+130.5200/+30.6612+130.5400/+30.6600+130.5416/+30.6513+130.5600/+30.6431+130.5800/+30.6400+130.5853/+30.6310+130.6000/+30.6200+130.6147/+30.6164+130.6200/+30.6000+130.6374/+30.5978+130.6400/+30.5890+130.6600/+30.5800+130.6727/+30.5743+130.6800/+30.5600+130.6995/+30.5589+130.7000/+30.5400+130.7128/+30.5336+130.7200/+30.5200+130.7311/+30.5025+130.7400/+30.5000+130.7440/+30.4975+130.7400/+30.4959+130.7200/+30.4984+130.7000/+30.5000+130.6864/+30.5004+130.6800/+30.5090+130.6600/+30.5200+130.6401/+30.5200+130.6400/+30.5277+130.6200/+30.5400+130.6021/+30.5409+130.6000/+30.5484+130.5800/+30.5579+130.5600/+30.5600+130.5565/+30.5667+130.5400/+30.5794+130.5200/+30.5800+130.5191/+30.6000+130.5040/+30.6020+130.5000/+30.6138+130.4800/+30.6200+130.4732/+30.6264+130.4600/+30.6400+130.4460/+30.6430+130.4400/+30.6600+130.4218/+30.6608+130.4200/+30.6769+130.4000/+30.6800+130.3968/+30.6879+130.3800/+30.7000+130.3680/+30.7031+130.3600/+30.7200+130.3431/+30.7208+130.3400/+30.7400+130.3208/+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/+30.8170+130.3200/+30.8000+130.3370/+30.7800+130.3383/+30.7620+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 2026-08-01T00:00:00+09:00 2026-08-01T03:00:00+09:00 降灰 70 +30.8198+130.3000/+30.8199+130.3200/+30.8002+130.3400/+30.8000+130.3402/+30.7979+130.3600/+30.7800+130.3779/+30.7791+130.3800/+30.7600+130.3994/+30.7595+130.4000/+30.7503+130.4200/+30.7400+130.4305/+30.7365+130.4400/+30.7200+130.4576/+30.7186+130.4600/+30.7054+130.4800/+30.7000+130.4858/+30.6944+130.5000/+30.6800+130.5158/+30.6773+130.5200/+30.6629+130.5400/+30.6600+130.5433/+30.6512+130.5600/+30.6437+130.5800/+30.6400+130.5864/+30.6312+130.6000/+30.6200+130.6144/+30.6160+130.6200/+30.6000+130.6361/+30.5964+130.6400/+30.5847+130.6600/+30.5800+130.6654/+30.5642+130.6800/+30.5600+130.6845/+30.5400+130.6928/+30.5315+130.7000/+30.5207+130.7200/+30.5200+130.7207/+30.5179+130.7200/+30.5102+130.7000/+30.5087+130.6800/+30.5177+130.6600/+30.5200+130.6553/+30.5242+130.6400/+30.5317+130.6200/+30.5400+130.6093/+30.5445+130.6000/+30.5545+130.5800/+30.5600+130.5702/+30.5643+130.5600/+30.5732+130.5400/+30.5800+130.5310/+30.5978+130.5200/+30.6000+130.5186/+30.6090+130.5000/+30.6200+130.4868/+30.6226+130.4800/+30.6400+130.4601/+30.6400+130.4600/+30.6505+130.4400/+30.6600+130.4304/+30.6645+130.4200/+30.6800+130.4039/+30.6813+130.4000/+30.7000+130.3806/+30.7002+130.3800/+30.7089+130.3600/+30.7200+130.3489/+30.7216+130.3400/+30.7400+130.3216/+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/+30.8179+130.3200/+30.8000+130.3379/+30.7800+130.3382/+30.7623+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９時から１日３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０９時から１２時まで　南東　　　　　　６０ｋｍ　　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　　　　　　５０ｋｍ　　２ｋｍ　　　　　 　３１日２１時から２４時まで　南東　　　　　　５０ｋｍ　　２ｋｍ　　　　　 　０１日００時から０３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、中種子町 　 　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。