2026-10-16T17:00:00Z 通常 気象庁本庁 気象庁 2026-10-17T02:00:00+09:00 2026-10-17T03:00:00+09:00 2026-10-17T21:00:00+09:00 511 発表 1 降灰予報 1.1_0 　現在、諏訪之瀬島は噴火警戒レベル２（火口周辺規制）です。諏訪之瀬島で噴火が発生した場合には、１７日０９時から１２時までは火口から西方向に降灰が予想されます。 降灰予報（定時） 06 諏訪之瀬島 511 降灰 70 鹿児島県十島村 4630400 小さな噴石の落下 75 鹿児島県十島村 4630400 降灰予報（定時） 06 諏訪之瀬島 511 +2938.30+12942.83+796/ 降灰 70 鹿児島県十島村 4630400 小さな噴石の落下 75 鹿児島県十島村 4630400 2026-10-17T03:00:00+09:00 2026-10-17T06:00:00+09:00 降灰 70 +29.6700+129.6800/+29.6783+129.7000/+29.6755+129.7200/+29.6600+129.7355/+29.6400+129.7399/+29.6201+129.7200/+29.6200+129.7199/+29.6004+129.7000/+29.6002+129.6800/+29.6002+129.6600/+29.6002+129.6400/+29.6001+129.6200/+29.6000+129.6177/+29.5867+129.6000/+29.5837+129.5800/+29.5826+129.5600/+29.5818+129.5400/+29.5813+129.5200/+29.5806+129.5000/+29.5800+129.4845/+29.5786+129.4800/+29.5734+129.4600/+29.5703+129.4400/+29.5714+129.4200/+29.5638+129.4000/+29.5642+129.3800/+29.5646+129.3600/+29.5652+129.3400/+29.5663+129.3200/+29.5686+129.3000/+29.5701+129.2800/+29.5752+129.2600/+29.5800+129.2464/+29.5828+129.2400/+29.5874+129.2200/+29.5944+129.2000/+29.6000+129.1858/+29.6081+129.2000/+29.6194+129.2200/+29.6200+129.2210/+29.6300+129.2400/+29.6391+129.2600/+29.6400+129.2628/+29.6440+129.2800/+29.6453+129.3000/+29.6478+129.3200/+29.6501+129.3400/+29.6537+129.3600/+29.6573+129.3800/+29.6588+129.4000/+29.6539+129.4200/+29.6548+129.4400/+29.6558+129.4600/+29.6562+129.4800/+29.6567+129.5000/+29.6577+129.5200/+29.6583+129.5400/+29.6589+129.5600/+29.6592+129.5800/+29.6596+129.6000/+29.6598+129.6200/+29.6599+129.6400/+29.6600+129.6600/+29.6600+129.6649/+29.6700+129.6800/ 西 50 鹿児島県十島村 4630400 小さな噴石の落下 75 1 +29.6588+129.7000/+29.6588+129.7200/+29.6400+129.7388/+29.6212+129.7200/+29.6212+129.7000/+29.6400+129.6806/+29.6588+129.7000/ 南西 1 鹿児島県十島村 4630400 2026-10-17T06:00:00+09:00 2026-10-17T09:00:00+09:00 降灰 70 +29.6676+129.7000/+29.6633+129.7200/+29.6600+129.7233/+29.6400+129.7398/+29.6200+129.7264/+29.6136+129.7200/+29.6002+129.7000/+29.6001+129.6800/+29.6001+129.6600/+29.6001+129.6400/+29.6000+129.6364/+29.5848+129.6200/+29.5814+129.6000/+29.5808+129.5800/+29.5804+129.5600/+29.5800+129.5427/+29.5781+129.5400/+29.5656+129.5200/+29.5626+129.5000/+29.5613+129.4800/+29.5601+129.4600/+29.5600+129.4587/+29.5495+129.4400/+29.5400+129.4220/+29.5381+129.4200/+29.5328+129.4000/+29.5299+129.3800/+29.5274+129.3600/+29.5257+129.3400/+29.5222+129.3200/+29.5200+129.3047/+29.5176+129.3000/+29.5098+129.2800/+29.5077+129.2600/+29.5058+129.2400/+29.5046+129.2200/+29.5042+129.2000/+29.5048+129.1800/+29.5074+129.1600/+29.5200+129.1515/+29.5400+129.1475/+29.5536+129.1600/+29.5600+129.1646/+29.5672+129.1800/+29.5738+129.2000/+29.5797+129.2200/+29.5800+129.2213/+29.5838+129.2400/+29.5888+129.2600/+29.5923+129.2800/+29.5970+129.3000/+29.6000+129.3099/+29.6039+129.3200/+29.6094+129.3400/+29.6132+129.3600/+29.6161+129.3800/+29.6197+129.4000/+29.6162+129.4200/+29.6181+129.4400/+29.6191+129.4600/+29.6200+129.4689/+29.6277+129.4800/+29.6342+129.5000/+29.6374+129.5200/+29.6388+129.5400/+29.6395+129.5600/+29.6399+129.5800/+29.6400+129.5820/+29.6550+129.6000/+29.6591+129.6200/+29.6597+129.6400/+29.6599+129.6600/+29.6600+129.6800/+29.6600+129.6924/+29.6676+129.7000/ 西 60 鹿児島県十島村 4630400 小さな噴石の落下 75 1 +29.6588+129.7000/+29.6588+129.7200/+29.6400+129.7388/+29.6212+129.7200/+29.6212+129.7000/+29.6400+129.6801/+29.6588+129.7000/ 南西 1 鹿児島県十島村 4630400 2026-10-17T09:00:00+09:00 2026-10-17T12:00:00+09:00 降灰 70 +29.6718+129.7000/+29.6660+129.7200/+29.6600+129.7260/+29.6400+129.7398/+29.6201+129.7200/+29.6200+129.7198/+29.6004+129.7000/+29.6001+129.6800/+29.6001+129.6600/+29.6002+129.6400/+29.6002+129.6200/+29.6000+129.6051/+29.5954+129.6000/+29.5839+129.5800/+29.5818+129.5600/+29.5814+129.5400/+29.5810+129.5200/+29.5806+129.5000/+29.5800+129.4831/+29.5780+129.4800/+29.5691+129.4600/+29.5661+129.4400/+29.5643+129.4200/+29.5600+129.4108/+29.5492+129.4000/+29.5483+129.3800/+29.5474+129.3600/+29.5460+129.3400/+29.5439+129.3200/+29.5400+129.3087/+29.5357+129.3000/+29.5356+129.2800/+29.5361+129.2600/+29.5365+129.2400/+29.5360+129.2200/+29.5309+129.2000/+29.5323+129.1800/+29.5340+129.1600/+29.5357+129.1400/+29.5372+129.1200/+29.5390+129.1000/+29.5400+129.0951/+29.5600+129.0816/+29.5675+129.1000/+29.5730+129.1200/+29.5791+129.1400/+29.5800+129.1418/+29.5900+129.1600/+29.6000+129.1705/+29.6043+129.1800/+29.6087+129.2000/+29.6129+129.2200/+29.6161+129.2400/+29.6200+129.2547/+29.6211+129.2600/+29.6245+129.2800/+29.6213+129.3000/+29.6264+129.3200/+29.6303+129.3400/+29.6326+129.3600/+29.6341+129.3800/+29.6357+129.4000/+29.6323+129.4200/+29.6353+129.4400/+29.6371+129.4600/+29.6384+129.4800/+29.6391+129.5000/+29.6395+129.5200/+29.6400+129.5355/+29.6429+129.5400/+29.6531+129.5600/+29.6578+129.5800/+29.6592+129.6000/+29.6597+129.6200/+29.6598+129.6400/+29.6599+129.6600/+29.6600+129.6800/+29.6600+129.6882/+29.6718+129.7000/ 西 60 鹿児島県十島村 4630400 小さな噴石の落下 75 1 +29.6424+129.6800/+29.6588+129.7000/+29.6588+129.7200/+29.6400+129.7388/+29.6212+129.7200/+29.6212+129.7000/+29.6371+129.6800/+29.6400+129.6767/+29.6424+129.6800/ 西 3 鹿児島県十島村 4630400 2026-10-17T12:00:00+09:00 2026-10-17T15:00:00+09:00 降灰 70 +29.6734+129.7000/+29.6667+129.7200/+29.6600+129.7267/+29.6400+129.7397/+29.6202+129.7200/+29.6200+129.7195/+29.6006+129.7000/+29.6002+129.6800/+29.6001+129.6600/+29.6002+129.6400/+29.6002+129.6200/+29.6002+129.6000/+29.6000+129.5912/+29.5908+129.5800/+29.5841+129.5600/+29.5823+129.5400/+29.5817+129.5200/+29.5815+129.5000/+29.5810+129.4800/+29.5804+129.4600/+29.5800+129.4501/+29.5750+129.4400/+29.5686+129.4200/+29.5600+129.4059/+29.5542+129.4000/+29.5532+129.3800/+29.5521+129.3600/+29.5514+129.3400/+29.5509+129.3200/+29.5441+129.3000/+29.5417+129.2800/+29.5415+129.2600/+29.5412+129.2400/+29.5412+129.2200/+29.5401+129.2000/+29.5404+129.1800/+29.5407+129.1600/+29.5433+129.1400/+29.5490+129.1200/+29.5571+129.1000/+29.5600+129.0903/+29.5707+129.1000/+29.5800+129.1034/+29.6000+129.1083/+29.6046+129.1200/+29.6108+129.1400/+29.6162+129.1600/+29.6200+129.1760/+29.6208+129.1800/+29.6213+129.2000/+29.6243+129.2200/+29.6266+129.2400/+29.6287+129.2600/+29.6304+129.2800/+29.6307+129.3000/+29.6331+129.3200/+29.6349+129.3400/+29.6362+129.3600/+29.6373+129.3800/+29.6381+129.4000/+29.6369+129.4200/+29.6381+129.4400/+29.6388+129.4600/+29.6394+129.4800/+29.6398+129.5000/+29.6400+129.5039/+29.6486+129.5200/+29.6546+129.5400/+29.6575+129.5600/+29.6589+129.5800/+29.6595+129.6000/+29.6597+129.6200/+29.6599+129.6400/+29.6599+129.6600/+29.6600+129.6800/+29.6600+129.6866/+29.6734+129.7000/ 西 60 鹿児島県十島村 4630400 小さな噴石の落下 75 1 +29.6445+129.6800/+29.6588+129.7000/+29.6588+129.7200/+29.6400+129.7388/+29.6212+129.7200/+29.6212+129.7000/+29.6355+129.6800/+29.6400+129.6736/+29.6445+129.6800/ 西 3 鹿児島県十島村 4630400 2026-10-17T15:00:00+09:00 2026-10-17T18:00:00+09:00 降灰 70 +29.6622+129.2200/+29.6643+129.2400/+29.6666+129.2600/+29.6683+129.2800/+29.6653+129.3000/+29.6662+129.3200/+29.6673+129.3400/+29.6685+129.3600/+29.6699+129.3800/+29.6720+129.4000/+29.6600+129.4129/+29.6581+129.4200/+29.6587+129.4400/+29.6589+129.4600/+29.6592+129.4800/+29.6594+129.5000/+29.6595+129.5200/+29.6597+129.5400/+29.6597+129.5600/+29.6598+129.5800/+29.6599+129.6000/+29.6600+129.6200/+29.6600+129.6350/+29.6610+129.6400/+29.6700+129.6600/+29.6761+129.6800/+29.6785+129.7000/+29.6716+129.7200/+29.6600+129.7316/+29.6400+129.7396/+29.6204+129.7200/+29.6200+129.7175/+29.6025+129.7000/+29.6005+129.6800/+29.6004+129.6600/+29.6004+129.6400/+29.6004+129.6200/+29.6005+129.6000/+29.6005+129.5800/+29.6005+129.5600/+29.6005+129.5400/+29.6002+129.5200/+29.6000+129.5094/+29.5956+129.5000/+29.5926+129.4800/+29.5887+129.4600/+29.5866+129.4400/+29.5859+129.4200/+29.5827+129.4000/+29.5826+129.3800/+29.5821+129.3600/+29.5817+129.3400/+29.5815+129.3200/+29.5800+129.3154/+29.5707+129.3000/+29.5715+129.2800/+29.5724+129.2600/+29.5736+129.2400/+29.5743+129.2200/+29.5717+129.2000/+29.5734+129.1800/+29.5753+129.1600/+29.5770+129.1400/+29.5784+129.1200/+29.5800+129.1001/+29.5800+129.1000/+29.5820+129.0800/+29.5844+129.0600/+29.5880+129.0400/+29.5934+129.0200/+29.6000+129.0019/+29.6105+129.0200/+29.6197+129.0400/+29.6200+129.0409/+29.6268+129.0600/+29.6330+129.0800/+29.6389+129.1000/+29.6400+129.1040/+29.6437+129.1200/+29.6480+129.1400/+29.6526+129.1600/+29.6571+129.1800/+29.6595+129.2000/+29.6600+129.2035/+29.6622+129.2200/ 西 70 鹿児島県十島村 4630400 小さな噴石の落下 75 1 +29.6479+129.6800/+29.6588+129.7000/+29.6588+129.7200/+29.6400+129.7388/+29.6212+129.7200/+29.6212+129.7000/+29.6321+129.6800/+29.6400+129.6685/+29.6479+129.6800/ 西 3 鹿児島県十島村 4630400 2026-10-17T18:00:00+09:00 2026-10-17T21:00:00+09:00 降灰 70 +29.7015+128.9600/+29.7039+128.9800/+29.7060+129.0000/+29.7074+129.0200/+29.7087+129.0400/+29.7093+129.0600/+29.7093+129.0800/+29.7092+129.1000/+29.7098+129.1200/+29.7104+129.1400/+29.7107+129.1600/+29.7107+129.1800/+29.7129+129.2000/+29.7069+129.2200/+29.7066+129.2400/+29.7066+129.2600/+29.7067+129.2800/+29.7075+129.3000/+29.7000+129.3098/+29.6963+129.3200/+29.6957+129.3400/+29.6953+129.3600/+29.6952+129.3800/+29.6953+129.4000/+29.6800+129.4186/+29.6796+129.4200/+29.6794+129.4400/+29.6791+129.4600/+29.6789+129.4800/+29.6789+129.5000/+29.6788+129.5200/+29.6789+129.5400/+29.6790+129.5600/+29.6791+129.5800/+29.6792+129.6000/+29.6794+129.6200/+29.6794+129.6400/+29.6796+129.6600/+29.6796+129.6800/+29.6796+129.7000/+29.6748+129.7200/+29.6600+129.7348/+29.6400+129.7396/+29.6204+129.7200/+29.6200+129.7000/+29.6200+129.6800/+29.6200+129.6605/+29.6197+129.6600/+29.6132+129.6400/+29.6125+129.6200/+29.6155+129.6000/+29.6157+129.5800/+29.6172+129.5600/+29.6150+129.5400/+29.6200+129.5241/+29.6201+129.5200/+29.6202+129.5000/+29.6203+129.4800/+29.6206+129.4600/+29.6208+129.4400/+29.6208+129.4200/+29.6200+129.4164/+29.6062+129.4000/+29.6074+129.3800/+29.6089+129.3600/+29.6105+129.3400/+29.6120+129.3200/+29.6140+129.3000/+29.6122+129.2800/+29.6149+129.2600/+29.6189+129.2400/+29.6194+129.2200/+29.6199+129.2000/+29.6200+129.1987/+29.6218+129.1800/+29.6254+129.1600/+29.6289+129.1400/+29.6319+129.1200/+29.6354+129.1000/+29.6400+129.0814/+29.6408+129.0800/+29.6521+129.0600/+29.6600+129.0444/+29.6648+129.0400/+29.6785+129.0200/+29.6800+129.0169/+29.6868+129.0000/+29.6920+128.9800/+29.6971+128.9600/+29.7000+128.9518/+29.7015+128.9600/ 西 70 鹿児島県十島村 4630400 小さな噴石の落下 75 1 +29.6477+129.6800/+29.6588+129.7000/+29.6588+129.7200/+29.6400+129.7388/+29.6212+129.7200/+29.6212+129.7000/+29.6323+129.6800/+29.6400+129.6690/+29.6477+129.6800/ 西 3 鹿児島県十島村 4630400 　現在、諏訪之瀬島は噴火警戒レベル２（火口周辺規制）です。諏訪之瀬島で噴火が発生した場合には、１７日０９時から１２時までは火口から西方向に降灰が予想されます。 　１７日３時から１７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 　１７日０３時から０６時まで　西　　　　　　　５０ｋｍ　　１ｋｍ　　　　　 　１７日０６時から０９時まで　西　　　　　　　６０ｋｍ　　１ｋｍ　　　　　 　１７日０９時から１２時まで　西　　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　１７日１２時から１５時まで　西　　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　１７日１５時から１８時まで　西　　　　　　　７０ｋｍ　　３ｋｍ　　　　　 　１７日１８時から２１時まで　西　　　　　　　７０ｋｍ　　３ｋｍ　　　　　 　 　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：十島村 　 　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。