2026-08-03T02:00:00Z 通常 気象庁本庁 気象庁 2026-08-03T11:00:00+09:00 2026-08-03T12:00:00+09:00 2026-08-04T06:00:00+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、３日２１時から２４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 2026-08-03T12:00:00+09:00 2026-08-03T15:00:00+09:00 降灰 70 +29.6778+129.7000/+29.6763+129.7200/+29.6600+129.7363/+29.6400+129.7399/+29.6200+129.7342/+29.6058+129.7200/+29.6002+129.7000/+29.6001+129.6800/+29.6000+129.6600/+29.6000+129.6593/+29.5842+129.6400/+29.5814+129.6200/+29.5801+129.6000/+29.5800+129.5994/+29.5662+129.5800/+29.5610+129.5600/+29.5600+129.5552/+29.5511+129.5400/+29.5440+129.5200/+29.5400+129.5031/+29.5384+129.5000/+29.5300+129.4800/+29.5240+129.4600/+29.5200+129.4440/+29.5176+129.4400/+29.5103+129.4200/+29.5076+129.4000/+29.5098+129.3800/+29.5200+129.3615/+29.5247+129.3600/+29.5400+129.3569/+29.5479+129.3600/+29.5600+129.3627/+29.5800+129.3776/+29.5820+129.3800/+29.5964+129.4000/+29.6000+129.4042/+29.6079+129.4200/+29.6150+129.4400/+29.6200+129.4481/+29.6275+129.4600/+29.6333+129.4800/+29.6366+129.5000/+29.6391+129.5200/+29.6400+129.5251/+29.6472+129.5400/+29.6520+129.5600/+29.6557+129.5800/+29.6580+129.6000/+29.6591+129.6200/+29.6596+129.6400/+29.6599+129.6600/+29.6600+129.6800/+29.6600+129.6818/+29.6778+129.7000/ 西 40 鹿児島県十島村 4630400 小さな噴石の落下 75 1 +29.6586+129.7000/+29.6588+129.7200/+29.6400+129.7388/+29.6212+129.7200/+29.6214+129.7000/+29.6400+129.6809/+29.6586+129.7000/ 南西 1 鹿児島県十島村 4630400 2026-08-03T15:00:00+09:00 2026-08-03T18:00:00+09:00 降灰 70 +29.6756+129.7000/+29.6735+129.7200/+29.6600+129.7335/+29.6400+129.7399/+29.6200+129.7355/+29.6045+129.7200/+29.6002+129.7000/+29.6000+129.6800/+29.6000+129.6772/+29.5840+129.6600/+29.5810+129.6400/+29.5808+129.6200/+29.5803+129.6000/+29.5800+129.5947/+29.5701+129.5800/+29.5667+129.5600/+29.5623+129.5400/+29.5609+129.5200/+29.5600+129.5112/+29.5537+129.5000/+29.5447+129.4800/+29.5400+129.4620/+29.5390+129.4600/+29.5322+129.4400/+29.5243+129.4200/+29.5215+129.4000/+29.5200+129.3890/+29.5171+129.3800/+29.5107+129.3600/+29.5085+129.3400/+29.5136+129.3200/+29.5200+129.3112/+29.5400+129.3128/+29.5547+129.3200/+29.5600+129.3217/+29.5800+129.3356/+29.5835+129.3400/+29.5978+129.3600/+29.6000+129.3637/+29.6092+129.3800/+29.6185+129.4000/+29.6188+129.4200/+29.6200+129.4237/+29.6278+129.4400/+29.6331+129.4600/+29.6354+129.4800/+29.6379+129.5000/+29.6392+129.5200/+29.6400+129.5353/+29.6416+129.5400/+29.6504+129.5600/+29.6548+129.5800/+29.6576+129.6000/+29.6591+129.6200/+29.6596+129.6400/+29.6599+129.6600/+29.6600+129.6800/+29.6600+129.6843/+29.6756+129.7000/ 西 40 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/+29.6205+129.7000/+29.6400+129.6805/+29.6588+129.7000/ 南西 1 鹿児島県十島村 4630400 2026-08-03T18:00:00+09:00 2026-08-03T21:00:00+09:00 降灰 70 +29.6426+129.6400/+29.6591+129.6600/+29.6599+129.6800/+29.6600+129.7000/+29.6600+129.7200/+29.6400+129.7399/+29.6200+129.7391/+29.6009+129.7200/+29.6000+129.7023/+29.5977+129.7000/+29.5804+129.6800/+29.5800+129.6781/+29.5622+129.6600/+29.5600+129.6512/+29.5488+129.6400/+29.5405+129.6200/+29.5400+129.6186/+29.5229+129.6000/+29.5200+129.5920/+29.5092+129.5800/+29.5012+129.5600/+29.5000+129.5570/+29.4850+129.5400/+29.4800+129.5270/+29.4744+129.5200/+29.4647+129.5000/+29.4600+129.4912/+29.4463+129.4800/+29.4400+129.4675/+29.4355+129.4600/+29.4261+129.4400/+29.4200+129.4222/+29.4189+129.4200/+29.4122+129.4000/+29.4107+129.3800/+29.4073+129.3600/+29.4044+129.3400/+29.4000+129.3294/+29.3972+129.3200/+29.3901+129.3000/+29.3871+129.2800/+29.3921+129.2600/+29.3999+129.2400/+29.4000+129.2399/+29.4001+129.2400/+29.4081+129.2600/+29.4200+129.2741/+29.4247+129.2800/+29.4394+129.3000/+29.4400+129.3003/+29.4507+129.3200/+29.4600+129.3299/+29.4701+129.3400/+29.4800+129.3499/+29.4859+129.3600/+29.5000+129.3793/+29.5004+129.3800/+29.5090+129.4000/+29.5196+129.4200/+29.5200+129.4211/+29.5274+129.4400/+29.5373+129.4600/+29.5400+129.4662/+29.5488+129.4800/+29.5595+129.5000/+29.5600+129.5009/+29.5750+129.5200/+29.5800+129.5306/+29.5885+129.5400/+29.6000+129.5591/+29.6009+129.5600/+29.6170+129.5800/+29.6200+129.5877/+29.6308+129.6000/+29.6383+129.6200/+29.6400+129.6373/+29.6426+129.6400/ 南西 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/+29.6201+129.7000/+29.6400+129.6805/+29.6588+129.7000/ 南西 1 鹿児島県十島村 4630400 2026-08-03T21:00:00+09:00 2026-08-04T00:00:00+09:00 降灰 70 +29.6636+129.7000/+29.6600+129.7123/+29.6600+129.7200/+29.6400+129.7398/+29.6200+129.7334/+29.6066+129.7200/+29.6002+129.7000/+29.6001+129.6800/+29.6000+129.6600/+29.6000+129.6595/+29.5818+129.6400/+29.5807+129.6200/+29.5803+129.6000/+29.5800+129.5945/+29.5660+129.5800/+29.5623+129.5600/+29.5608+129.5400/+29.5600+129.5291/+29.5538+129.5200/+29.5451+129.5000/+29.5420+129.4800/+29.5400+129.4653/+29.5361+129.4600/+29.5263+129.4400/+29.5200+129.4222/+29.5172+129.4200/+29.5057+129.4000/+29.5000+129.3808/+29.4997+129.3800/+29.4939+129.3600/+29.4898+129.3400/+29.4854+129.3200/+29.4827+129.3000/+29.4800+129.2859/+29.4772+129.2800/+29.4709+129.2600/+29.4654+129.2400/+29.4655+129.2200/+29.4631+129.2000/+29.4676+129.1800/+29.4781+129.1600/+29.4800+129.1584/+29.5000+129.1472/+29.5094+129.1600/+29.5200+129.1782/+29.5209+129.1800/+29.5302+129.2000/+29.5400+129.2138/+29.5430+129.2200/+29.5497+129.2400/+29.5581+129.2600/+29.5600+129.2649/+29.5672+129.2800/+29.5778+129.3000/+29.5756+129.3200/+29.5800+129.3393/+29.5804+129.3400/+29.5912+129.3600/+29.5974+129.3800/+29.6000+129.3880/+29.6048+129.4000/+29.6000+129.4064/+29.5975+129.4200/+29.6000+129.4347/+29.6036+129.4400/+29.6115+129.4600/+29.6160+129.4800/+29.6184+129.5000/+29.6196+129.5200/+29.6200+129.5228/+29.6335+129.5400/+29.6381+129.5600/+29.6392+129.5800/+29.6398+129.6000/+29.6400+129.6027/+29.6559+129.6200/+29.6593+129.6400/+29.6599+129.6600/+29.6600+129.6800/+29.6600+129.6964/+29.6636+129.7000/ 西 60 鹿児島県十島村 4630400 小さな噴石の落下 75 1 +29.6430+129.6800/+29.6588+129.7000/+29.6588+129.7200/+29.6400+129.7388/+29.6212+129.7200/+29.6212+129.7000/+29.6357+129.6800/+29.6400+129.6760/+29.6430+129.6800/ 西 3 鹿児島県十島村 4630400 2026-08-04T00:00:00+09:00 2026-08-04T03:00:00+09:00 降灰 70 +29.6655+129.7000/+29.6626+129.7200/+29.6600+129.7226/+29.6400+129.7399/+29.6200+129.7364/+29.6036+129.7200/+29.6001+129.7000/+29.6000+129.6851/+29.5949+129.6800/+29.5814+129.6600/+29.5802+129.6400/+29.5800+129.6386/+29.5643+129.6200/+29.5613+129.6000/+29.5600+129.5917/+29.5509+129.5800/+29.5456+129.5600/+29.5411+129.5400/+29.5400+129.5327/+29.5344+129.5200/+29.5292+129.5000/+29.5263+129.4800/+29.5216+129.4600/+29.5200+129.4473/+29.5157+129.4400/+29.5024+129.4200/+29.5000+129.4082/+29.4975+129.4000/+29.4933+129.3800/+29.4882+129.3600/+29.4847+129.3400/+29.4807+129.3200/+29.4800+129.3169/+29.4737+129.3000/+29.4680+129.2800/+29.4632+129.2600/+29.4600+129.2450/+29.4586+129.2400/+29.4600+129.2359/+29.4723+129.2200/+29.4800+129.2036/+29.4841+129.2000/+29.5000+129.1931/+29.5039+129.2000/+29.5112+129.2200/+29.5200+129.2383/+29.5210+129.2400/+29.5340+129.2600/+29.5400+129.2738/+29.5422+129.2800/+29.5519+129.3000/+29.5600+129.3159/+29.5619+129.3200/+29.5692+129.3400/+29.5751+129.3600/+29.5800+129.3794/+29.5804+129.3800/+29.5922+129.4000/+29.5928+129.4200/+29.5982+129.4400/+29.6000+129.4495/+29.6053+129.4600/+29.6115+129.4800/+29.6176+129.5000/+29.6197+129.5200/+29.6200+129.5215/+29.6330+129.5400/+29.6375+129.5600/+29.6391+129.5800/+29.6400+129.6000/+29.6400+129.6002/+29.6567+129.6200/+29.6593+129.6400/+29.6598+129.6600/+29.6600+129.6800/+29.6600+129.6945/+29.6655+129.7000/ 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/+29.6207+129.7000/+29.6400+129.6803/+29.6588+129.7000/ 南西 1 鹿児島県十島村 4630400 2026-08-04T03:00:00+09:00 2026-08-04T06:00:00+09:00 降灰 70 +29.6417+129.6400/+29.6592+129.6600/+29.6599+129.6800/+29.6600+129.7000/+29.6600+129.7200/+29.6400+129.7398/+29.6200+129.7379/+29.6021+129.7200/+29.6001+129.7000/+29.6000+129.6942/+29.5858+129.6800/+29.5804+129.6600/+29.5800+129.6520/+29.5682+129.6400/+29.5610+129.6200/+29.5600+129.6109/+29.5497+129.6000/+29.5414+129.5800/+29.5400+129.5729/+29.5284+129.5600/+29.5219+129.5400/+29.5200+129.5315/+29.5103+129.5200/+29.5018+129.5000/+29.5000+129.4929/+29.4898+129.4800/+29.4800+129.4692/+29.4707+129.4600/+29.4645+129.4400/+29.4600+129.4220/+29.4581+129.4200/+29.4451+129.4000/+29.4400+129.3861/+29.4357+129.3800/+29.4238+129.3600/+29.4200+129.3461/+29.4184+129.3400/+29.4138+129.3200/+29.4114+129.3000/+29.4070+129.2800/+29.4146+129.2600/+29.4200+129.2513/+29.4400+129.2419/+29.4600+129.2572/+29.4618+129.2600/+29.4734+129.2800/+29.4800+129.2852/+29.4991+129.3000/+29.5000+129.3013/+29.5082+129.3200/+29.5112+129.3400/+29.5185+129.3600/+29.5200+129.3638/+29.5397+129.3800/+29.5400+129.3803/+29.5516+129.4000/+29.5570+129.4200/+29.5590+129.4400/+29.5600+129.4425/+29.5797+129.4600/+29.5800+129.4612/+29.5844+129.4800/+29.5944+129.5000/+29.6000+129.5133/+29.6028+129.5200/+29.6081+129.5400/+29.6180+129.5600/+29.6200+129.5715/+29.6247+129.5800/+29.6351+129.6000/+29.6393+129.6200/+29.6400+129.6379/+29.6417+129.6400/ 南西 50 鹿児島県十島村 4630400 小さな噴石の落下 75 1 +29.6422+129.6800/+29.6588+129.7000/+29.6588+129.7200/+29.6400+129.7388/+29.6212+129.7200/+29.6205+129.7000/+29.6344+129.6800/+29.6400+129.6778/+29.6422+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、３日２１時から２４時までは火口から西方向に降灰が予想されます。 　３日１２時から４日６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 　０３日１２時から１５時まで　西　　　　　　　４０ｋｍ　　１ｋｍ　　　　　 　０３日１５時から１８時まで　西　　　　　　　４０ｋｍ　　１ｋｍ　　　　　 　０３日１８時から２１時まで　南西　　　　　　５０ｋｍ　　１ｋｍ　　　　　 　０３日２１時から２４時まで　西　　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　０４日００時から０３時まで　西　　　　　　　５０ｋｍ　　１ｋｍ　　　　　 　０４日０３時から０６時まで　南西　　　　　　５０ｋｍ　　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。