2026-08-04T20:00:00Z 通常 気象庁本庁 気象庁 2026-08-05T05:00:00+09:00 2026-08-05T06:00:00+09:00 2026-08-06T00:00:00+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、５日０９時から１２時までは火口から南西方向、５日２１時から２４時までは火口から南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 2026-08-05T06:00:00+09:00 2026-08-05T09:00:00+09:00 降灰 70 +29.6541+129.6600/+29.6599+129.6800/+29.6600+129.7000/+29.6598+129.7200/+29.6400+129.7398/+29.6200+129.7384/+29.6016+129.7200/+29.6001+129.7000/+29.6000+129.6995/+29.5805+129.6800/+29.5800+129.6728/+29.5672+129.6600/+29.5603+129.6400/+29.5600+129.6387/+29.5418+129.6200/+29.5400+129.6142/+29.5261+129.6000/+29.5201+129.5800/+29.5200+129.5798/+29.5030+129.5600/+29.5000+129.5530/+29.4879+129.5400/+29.4807+129.5200/+29.4800+129.5186/+29.4633+129.5000/+29.4600+129.4946/+29.4404+129.4800/+29.4400+129.4791/+29.4293+129.4600/+29.4204+129.4400/+29.4200+129.4391/+29.4115+129.4200/+29.4034+129.4000/+29.4000+129.3903/+29.3925+129.3800/+29.3822+129.3600/+29.3800+129.3466/+29.3787+129.3400/+29.3739+129.3200/+29.3701+129.3000/+29.3680+129.2800/+29.3650+129.2600/+29.3646+129.2400/+29.3745+129.2200/+29.3800+129.2161/+29.4000+129.2102/+29.4072+129.2200/+29.4200+129.2365/+29.4228+129.2400/+29.4400+129.2504/+29.4484+129.2600/+29.4600+129.2800/+29.4600+129.2801/+29.4706+129.3000/+29.4800+129.3141/+29.4841+129.3200/+29.4937+129.3400/+29.5000+129.3504/+29.5051+129.3600/+29.5133+129.3800/+29.5200+129.3947/+29.5250+129.4000/+29.5379+129.4200/+29.5376+129.4400/+29.5400+129.4455/+29.5510+129.4600/+29.5575+129.4800/+29.5600+129.4868/+29.5708+129.5000/+29.5776+129.5200/+29.5800+129.5293/+29.5895+129.5400/+29.5979+129.5600/+29.6000+129.5729/+29.6069+129.5800/+29.6187+129.6000/+29.6200+129.6101/+29.6298+129.6200/+29.6394+129.6400/+29.6400+129.6459/+29.6541+129.6600/ 南西 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/+29.6200+129.7048/+29.6152+129.7000/+29.6200+129.6839/+29.6400+129.6801/+29.6588+129.7000/ 南西 3 鹿児島県十島村 4630400 2026-08-05T09:00:00+09:00 2026-08-05T12:00:00+09:00 降灰 70 +29.6597+129.6800/+29.6600+129.7000/+29.6599+129.7200/+29.6400+129.7398/+29.6200+129.7393/+29.6007+129.7200/+29.6000+129.7163/+29.5837+129.7000/+29.5800+129.6843/+29.5757+129.6800/+29.5603+129.6600/+29.5600+129.6593/+29.5411+129.6400/+29.5400+129.6377/+29.5225+129.6200/+29.5200+129.6145/+29.5059+129.6000/+29.5000+129.5828/+29.4972+129.5800/+29.4814+129.5600/+29.4800+129.5574/+29.4640+129.5400/+29.4600+129.5323/+29.4483+129.5200/+29.4400+129.5132/+29.4234+129.5000/+29.4200+129.4945/+29.4081+129.4800/+29.4000+129.4616/+29.3981+129.4600/+29.3808+129.4400/+29.3800+129.4388/+29.3630+129.4200/+29.3600+129.4156/+29.3463+129.4000/+29.3400+129.3869/+29.3365+129.3800/+29.3250+129.3600/+29.3200+129.3448/+29.3176+129.3400/+29.3088+129.3200/+29.3000+129.3127/+29.2919+129.3000/+29.2919+129.2800/+29.2919+129.2600/+29.3000+129.2458/+29.3118+129.2600/+29.3200+129.2704/+29.3381+129.2800/+29.3400+129.2806/+29.3600+129.2937/+29.3666+129.3000/+29.3800+129.3090/+29.3937+129.3200/+29.4000+129.3232/+29.4165+129.3400/+29.4200+129.3448/+29.4288+129.3600/+29.4400+129.3726/+29.4451+129.3800/+29.4600+129.3972/+29.4630+129.4000/+29.4795+129.4200/+29.4800+129.4208/+29.4920+129.4400/+29.4962+129.4600/+29.5000+129.4669/+29.5118+129.4800/+29.5200+129.4949/+29.5243+129.5000/+29.5380+129.5200/+29.5400+129.5224/+29.5557+129.5400/+29.5600+129.5462/+29.5737+129.5600/+29.5800+129.5712/+29.5883+129.5800/+29.5994+129.6000/+29.6000+129.6008/+29.6180+129.6200/+29.6200+129.6251/+29.6348+129.6400/+29.6398+129.6600/+29.6400+129.6602/+29.6597+129.6800/ 南西 60 鹿児島県十島村 4630400 小さな噴石の落下 75 1 +29.6466+129.6800/+29.6588+129.7000/+29.6588+129.7200/+29.6400+129.7388/+29.6212+129.7200/+29.6200+129.7062/+29.6138+129.7000/+29.6158+129.6800/+29.6200+129.6753/+29.6400+129.6734/+29.6466+129.6800/ 南西 4 鹿児島県十島村 4630400 2026-08-05T12:00:00+09:00 2026-08-05T15:00:00+09:00 降灰 70 +29.6598+129.6800/+29.6600+129.7000/+29.6598+129.7200/+29.6400+129.7398/+29.6200+129.7388/+29.6012+129.7200/+29.6000+129.7000/+29.6000+129.6999/+29.5802+129.6800/+29.5800+129.6782/+29.5618+129.6600/+29.5600+129.6495/+29.5505+129.6400/+29.5405+129.6200/+29.5400+129.6183/+29.5223+129.6000/+29.5200+129.5920/+29.5084+129.5800/+29.5002+129.5600/+29.5000+129.5595/+29.4821+129.5400/+29.4800+129.5351/+29.4659+129.5200/+29.4600+129.5069/+29.4401+129.5000/+29.4400+129.5000/+29.4233+129.4800/+29.4200+129.4743/+29.4091+129.4600/+29.4022+129.4400/+29.4000+129.4357/+29.3800+129.4261/+29.3739+129.4200/+29.3668+129.4000/+29.3600+129.3874/+29.3489+129.3800/+29.3400+129.3695/+29.3351+129.3600/+29.3209+129.3400/+29.3200+129.3377/+29.3127+129.3200/+29.3024+129.3000/+29.3000+129.2951/+29.2897+129.2800/+29.2800+129.2633/+29.2783+129.2600/+29.2738+129.2400/+29.2756+129.2200/+29.2800+129.2081/+29.3000+129.2004/+29.3163+129.2200/+29.3200+129.2241/+29.3353+129.2400/+29.3400+129.2438/+29.3600+129.2587/+29.3612+129.2600/+29.3800+129.2796/+29.3802+129.2800/+29.3941+129.3000/+29.4000+129.3087/+29.4107+129.3200/+29.4200+129.3262/+29.4315+129.3400/+29.4396+129.3600/+29.4400+129.3605/+29.4552+129.3800/+29.4600+129.3861/+29.4757+129.4000/+29.4800+129.4045/+29.4921+129.4200/+29.4999+129.4400/+29.5000+129.4404/+29.5067+129.4600/+29.5188+129.4800/+29.5200+129.4820/+29.5357+129.5000/+29.5400+129.5095/+29.5498+129.5200/+29.5594+129.5400/+29.5600+129.5411/+29.5778+129.5600/+29.5800+129.5661/+29.5928+129.5800/+29.5997+129.6000/+29.6000+129.6006/+29.6190+129.6200/+29.6200+129.6241/+29.6359+129.6400/+29.6399+129.6600/+29.6400+129.6602/+29.6598+129.6800/ 南西 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/+29.6200+129.7126/+29.6074+129.7000/+29.6181+129.6800/+29.6200+129.6781/+29.6213+129.6800/+29.6400+129.6812/+29.6588+129.7000/ 南西 4 鹿児島県十島村 4630400 2026-08-05T15:00:00+09:00 2026-08-05T18:00:00+09:00 降灰 70 +29.6597+129.6800/+29.6600+129.7000/+29.6597+129.7200/+29.6400+129.7397/+29.6200+129.7388/+29.6012+129.7200/+29.6000+129.7024/+29.5976+129.7000/+29.5802+129.6800/+29.5800+129.6792/+29.5609+129.6600/+29.5600+129.6558/+29.5442+129.6400/+29.5400+129.6200/+29.5207+129.6000/+29.5200+129.5983/+29.5021+129.5800/+29.5000+129.5744/+29.4859+129.5600/+29.4800+129.5432/+29.4769+129.5400/+29.4611+129.5200/+29.4600+129.5184/+29.4400+129.5117/+29.4274+129.5000/+29.4200+129.4872/+29.4135+129.4800/+29.4034+129.4600/+29.4000+129.4492/+29.3911+129.4400/+29.3800+129.4338/+29.3659+129.4200/+29.3600+129.4006/+29.3594+129.4000/+29.3400+129.3858/+29.3360+129.3800/+29.3283+129.3600/+29.3200+129.3470/+29.3120+129.3400/+29.3000+129.3207/+29.2990+129.3200/+29.2810+129.3000/+29.2800+129.2979/+29.2712+129.2800/+29.2615+129.2600/+29.2600+129.2560/+29.2509+129.2400/+29.2400+129.2256/+29.2360+129.2200/+29.2245+129.2000/+29.2200+129.1806/+29.2198+129.1800/+29.2000+129.1618/+29.1983+129.1600/+29.1910+129.1400/+29.1932+129.1200/+29.1995+129.1000/+29.2000+129.0998/+29.2002+129.1000/+29.2083+129.1200/+29.2200+129.1314/+29.2400+129.1392/+29.2411+129.1400/+29.2600+129.1546/+29.2638+129.1600/+29.2785+129.1800/+29.2800+129.1817/+29.2996+129.2000/+29.3000+129.2002/+29.3200+129.2176/+29.3221+129.2200/+29.3360+129.2400/+29.3400+129.2461/+29.3527+129.2600/+29.3600+129.2656/+29.3736+129.2800/+29.3800+129.2894/+29.3850+129.3000/+29.3944+129.3200/+29.4000+129.3250/+29.4200+129.3368/+29.4227+129.3400/+29.4315+129.3600/+29.4400+129.3782/+29.4413+129.3800/+29.4570+129.4000/+29.4600+129.4045/+29.4790+129.4200/+29.4800+129.4213/+29.4925+129.4400/+29.4974+129.4600/+29.5000+129.4673/+29.5120+129.4800/+29.5199+129.5000/+29.5200+129.5001/+29.5386+129.5200/+29.5400+129.5223/+29.5567+129.5400/+29.5600+129.5477/+29.5716+129.5600/+29.5797+129.5800/+29.5800+129.5805/+29.5989+129.6000/+29.6000+129.6023/+29.6176+129.6200/+29.6200+129.6305/+29.6295+129.6400/+29.6398+129.6600/+29.6400+129.6603/+29.6597+129.6800/ 南西 80 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/+29.6200+129.7120/+29.6080+129.7000/+29.6116+129.6800/+29.6200+129.6712/+29.6269+129.6800/+29.6400+129.6812/+29.6588+129.7000/ 南西 4 鹿児島県十島村 4630400 2026-08-05T18:00:00+09:00 2026-08-05T21:00:00+09:00 降灰 70 +29.6591+129.6800/+29.6599+129.7000/+29.6598+129.7200/+29.6400+129.7398/+29.6200+129.7394/+29.6006+129.7200/+29.6000+129.7194/+29.5806+129.7000/+29.5800+129.6992/+29.5608+129.6800/+29.5600+129.6789/+29.5410+129.6600/+29.5400+129.6587/+29.5210+129.6400/+29.5200+129.6387/+29.5009+129.6200/+29.5000+129.6189/+29.4809+129.6000/+29.4800+129.5990/+29.4602+129.5800/+29.4600+129.5798/+29.4401+129.5600/+29.4400+129.5599/+29.4210+129.5400/+29.4200+129.5390/+29.4000+129.5277/+29.3895+129.5200/+29.3800+129.5115/+29.3705+129.5000/+29.3600+129.4896/+29.3467+129.4800/+29.3400+129.4734/+29.3296+129.4600/+29.3211+129.4400/+29.3200+129.4381/+29.3000+129.4231/+29.2971+129.4200/+29.2800+129.4025/+29.2771+129.4000/+29.2633+129.3800/+29.2600+129.3757/+29.2451+129.3600/+29.2400+129.3530/+29.2308+129.3400/+29.2200+129.3229/+29.2180+129.3200/+29.2038+129.3000/+29.2000+129.2919/+29.1933+129.2800/+29.1819+129.2600/+29.1800+129.2460/+29.1789+129.2400/+29.1800+129.2374/+29.2000+129.2231/+29.2200+129.2384/+29.2222+129.2400/+29.2400+129.2525/+29.2506+129.2600/+29.2600+129.2650/+29.2765+129.2800/+29.2800+129.2834/+29.2963+129.3000/+29.3000+129.3024/+29.3200+129.3170/+29.3233+129.3200/+29.3400+129.3363/+29.3425+129.3400/+29.3553+129.3600/+29.3600+129.3633/+29.3800+129.3737/+29.3869+129.3800/+29.3993+129.4000/+29.4000+129.4006/+29.4200+129.4166/+29.4233+129.4200/+29.4381+129.4400/+29.4400+129.4413/+29.4579+129.4600/+29.4600+129.4622/+29.4736+129.4800/+29.4800+129.4924/+29.4878+129.5000/+29.5000+129.5133/+29.5066+129.5200/+29.5200+129.5369/+29.5231+129.5400/+29.5394+129.5600/+29.5400+129.5606/+29.5591+129.5800/+29.5600+129.5808/+29.5788+129.6000/+29.5800+129.6011/+29.5986+129.6200/+29.6000+129.6213/+29.6186+129.6400/+29.6200+129.6412/+29.6388+129.6600/+29.6400+129.6609/+29.6591+129.6800/ 南西 70 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/+29.6200+129.7135/+29.6065+129.7000/+29.6086+129.6800/+29.6200+129.6701/+29.6287+129.6800/+29.6400+129.6812/+29.6588+129.7000/ 南西 4 鹿児島県十島村 4630400 2026-08-05T21:00:00+09:00 2026-08-06T00:00:00+09:00 降灰 70 +29.6585+129.6800/+29.6599+129.7000/+29.6598+129.7200/+29.6400+129.7398/+29.6200+129.7393/+29.6007+129.7200/+29.6000+129.7195/+29.5805+129.7000/+29.5800+129.6994/+29.5606+129.6800/+29.5600+129.6792/+29.5408+129.6600/+29.5400+129.6591/+29.5207+129.6400/+29.5200+129.6391/+29.5007+129.6200/+29.5000+129.6192/+29.4805+129.6000/+29.4800+129.5995/+29.4602+129.5800/+29.4600+129.5798/+29.4401+129.5600/+29.4400+129.5599/+29.4200+129.5467/+29.4064+129.5400/+29.4000+129.5381/+29.3800+129.5266/+29.3733+129.5200/+29.3617+129.5000/+29.3600+129.4983/+29.3400+129.4877/+29.3314+129.4800/+29.3200+129.4681/+29.3046+129.4600/+29.3000+129.4555/+29.2914+129.4400/+29.2800+129.4238/+29.2717+129.4200/+29.2600+129.4066/+29.2558+129.4000/+29.2400+129.3833/+29.2355+129.3800/+29.2200+129.3640/+29.2172+129.3600/+29.2073+129.3400/+29.2000+129.3318/+29.1854+129.3200/+29.1800+129.3149/+29.1666+129.3000/+29.1676+129.2800/+29.1800+129.2722/+29.2000+129.2717/+29.2139+129.2800/+29.2200+129.2842/+29.2390+129.3000/+29.2400+129.3009/+29.2600+129.3118/+29.2736+129.3200/+29.2800+129.3241/+29.3000+129.3385/+29.3019+129.3400/+29.3139+129.3600/+29.3200+129.3638/+29.3400+129.3727/+29.3489+129.3800/+29.3600+129.3969/+29.3631+129.4000/+29.3800+129.4068/+29.3910+129.4200/+29.3989+129.4400/+29.4000+129.4407/+29.4200+129.4476/+29.4350+129.4600/+29.4400+129.4633/+29.4563+129.4800/+29.4588+129.5000/+29.4600+129.5012/+29.4792+129.5200/+29.4800+129.5206/+29.4997+129.5400/+29.5000+129.5402/+29.5200+129.5581/+29.5218+129.5600/+29.5400+129.5745/+29.5465+129.5800/+29.5600+129.5914/+29.5679+129.6000/+29.5800+129.6092/+29.5905+129.6200/+29.6000+129.6266/+29.6132+129.6400/+29.6200+129.6449/+29.6350+129.6600/+29.6400+129.6615/+29.6585+129.6800/ +29.1651+129.2600/+29.1600+129.2693/+29.1422+129.2600/+29.1600+129.2532/+29.1651+129.2600/ +29.1022+129.2000/+29.1000+129.2037/+29.0962+129.2000/+29.1000+129.1979/+29.1022+129.2000/ 南西 80 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/+29.6200+129.7142/+29.6058+129.7000/+29.6081+129.6800/+29.6200+129.6715/+29.6284+129.6800/+29.6400+129.6812/+29.6588+129.7000/ 南西 4 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、５日０９時から１２時までは火口から南西方向、５日２１時から２４時までは火口から南西方向に降灰が予想されます。 　５日６時から５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 　０５日０６時から０９時まで　南西　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　０５日０９時から１２時まで　南西　　　　　　６０ｋｍ　　４ｋｍ　　　　　 　０５日１２時から１５時まで　南西　　　　　　６０ｋｍ　　４ｋｍ　　　　　 　０５日１５時から１８時まで　南西　　　　　　８０ｋｍ　　４ｋｍ　　　　　 　０５日１８時から２１時まで　南西　　　　　　７０ｋｍ　　４ｋｍ　　　　　 　０５日２１時から２４時まで　南西　　　　　　８０ｋｍ　　４ｋｍ　　　　　 　 　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。