2026-08-04T23:00:00Z 通常 気象庁本庁 気象庁 2026-08-05T08:00:00+09:00 2026-08-05T09:00:00+09:00 2026-08-06T03:00:00+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 2026-08-05T09:00:00+09:00 2026-08-05T12:00:00+09:00 降灰 70 +29.6598+129.6800/+29.6600+129.7000/+29.6598+129.7200/+29.6400+129.7398/+29.6200+129.7390/+29.6010+129.7200/+29.6000+129.7060/+29.5940+129.7000/+29.5802+129.6800/+29.5800+129.6790/+29.5610+129.6600/+29.5600+129.6559/+29.5442+129.6400/+29.5400+129.6249/+29.5351+129.6200/+29.5208+129.6000/+29.5200+129.5977/+29.5030+129.5800/+29.5000+129.5733/+29.4871+129.5600/+29.4800+129.5458/+29.4743+129.5400/+29.4603+129.5200/+29.4600+129.5194/+29.4400+129.5090/+29.4299+129.5000/+29.4200+129.4822/+29.4181+129.4800/+29.4051+129.4600/+29.4000+129.4461/+29.3942+129.4400/+29.3800+129.4296/+29.3708+129.4200/+29.3636+129.4000/+29.3600+129.3924/+29.3461+129.3800/+29.3400+129.3714/+29.3342+129.3600/+29.3213+129.3400/+29.3200+129.3360/+29.3138+129.3200/+29.3018+129.3000/+29.3000+129.2939/+29.2953+129.2800/+29.2876+129.2600/+29.2875+129.2400/+29.3000+129.2251/+29.3126+129.2400/+29.3200+129.2501/+29.3359+129.2600/+29.3400+129.2612/+29.3600+129.2703/+29.3705+129.2800/+29.3800+129.2888/+29.3886+129.3000/+29.4000+129.3139/+29.4052+129.3200/+29.4200+129.3327/+29.4253+129.3400/+29.4344+129.3600/+29.4400+129.3672/+29.4488+129.3800/+29.4600+129.3959/+29.4649+129.4000/+29.4800+129.4154/+29.4835+129.4200/+29.4946+129.4400/+29.4982+129.4600/+29.5000+129.4624/+29.5161+129.4800/+29.5200+129.4878/+29.5300+129.5000/+29.5400+129.5185/+29.5414+129.5200/+29.5582+129.5400/+29.5600+129.5435/+29.5756+129.5600/+29.5800+129.5727/+29.5867+129.5800/+29.5994+129.6000/+29.6000+129.6012/+29.6182+129.6200/+29.6200+129.6271/+29.6327+129.6400/+29.6398+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 +29.6420+129.6800/+29.6588+129.7000/+29.6588+129.7200/+29.6400+129.7388/+29.6212+129.7200/+29.6200+129.7085/+29.6115+129.7000/+29.6156+129.6800/+29.6200+129.6754/+29.6400+129.6780/+29.6420+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+129.7397/+29.6200+129.7385/+29.6015+129.7200/+29.6001+129.7000/+29.6000+129.6997/+29.5803+129.6800/+29.5800+129.6767/+29.5633+129.6600/+29.5601+129.6400/+29.5600+129.6396/+29.5409+129.6200/+29.5400+129.6164/+29.5239+129.6000/+29.5200+129.5869/+29.5132+129.5800/+29.5007+129.5600/+29.5000+129.5587/+29.4824+129.5400/+29.4800+129.5332/+29.4676+129.5200/+29.4600+129.5072/+29.4432+129.5000/+29.4400+129.4988/+29.4242+129.4800/+29.4200+129.4725/+29.4107+129.4600/+29.4030+129.4400/+29.4000+129.4343/+29.3800+129.4239/+29.3762+129.4200/+29.3682+129.4000/+29.3600+129.3821/+29.3570+129.3800/+29.3404+129.3600/+29.3400+129.3594/+29.3230+129.3400/+29.3200+129.3347/+29.3110+129.3200/+29.3000+129.3023/+29.2978+129.3000/+29.2861+129.2800/+29.2800+129.2692/+29.2748+129.2600/+29.2671+129.2400/+29.2600+129.2272/+29.2538+129.2200/+29.2400+129.2090/+29.2336+129.2000/+29.2396+129.1800/+29.2400+129.1793/+29.2600+129.1771/+29.2636+129.1800/+29.2800+129.1906/+29.3000+129.1998/+29.3002+129.2000/+29.3182+129.2200/+29.3200+129.2217/+29.3400+129.2387/+29.3415+129.2400/+29.3600+129.2526/+29.3673+129.2600/+29.3800+129.2720/+29.3844+129.2800/+29.4000+129.2983/+29.4025+129.3000/+29.4196+129.3200/+29.4200+129.3204/+29.4355+129.3400/+29.4400+129.3484/+29.4464+129.3600/+29.4566+129.3800/+29.4600+129.3838/+29.4799+129.4000/+29.4800+129.4001/+29.4961+129.4200/+29.5000+129.4276/+29.5073+129.4400/+29.5127+129.4600/+29.5200+129.4792/+29.5208+129.4800/+29.5379+129.5000/+29.5400+129.5048/+29.5537+129.5200/+29.5599+129.5400/+29.5600+129.5402/+29.5784+129.5600/+29.5800+129.5645/+29.5953+129.5800/+29.5998+129.6000/+29.6000+129.6002/+29.6193+129.6200/+29.6200+129.6224/+29.6376+129.6400/+29.6399+129.6600/+29.6400+129.6602/+29.6598+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+129.7111/+29.6089+129.7000/+29.6157+129.6800/+29.6200+129.6751/+29.6235+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 +29.6598+129.6800/+29.6599+129.7000/+29.6596+129.7200/+29.6400+129.7396/+29.6200+129.7379/+29.6021+129.7200/+29.6001+129.7000/+29.6000+129.6996/+29.5804+129.6800/+29.5800+129.6708/+29.5692+129.6600/+29.5603+129.6400/+29.5600+129.6381/+29.5420+129.6200/+29.5400+129.6048/+29.5352+129.6000/+29.5209+129.5800/+29.5200+129.5765/+29.5038+129.5600/+29.5000+129.5432/+29.4969+129.5400/+29.4815+129.5200/+29.4800+129.5163/+29.4646+129.5000/+29.4600+129.4951/+29.4400+129.4860/+29.4346+129.4800/+29.4243+129.4600/+29.4200+129.4473/+29.4153+129.4400/+29.4035+129.4200/+29.4000+129.4126/+29.3800+129.4003/+29.3799+129.4000/+29.3690+129.3800/+29.3640+129.3600/+29.3600+129.3522/+29.3431+129.3400/+29.3400+129.3365/+29.3243+129.3200/+29.3200+129.3118/+29.3157+129.3000/+29.3091+129.2800/+29.3000+129.2630/+29.2969+129.2600/+29.2822+129.2400/+29.2800+129.2363/+29.2707+129.2200/+29.2606+129.2000/+29.2600+129.1984/+29.2478+129.1800/+29.2400+129.1721/+29.2320+129.1600/+29.2265+129.1400/+29.2247+129.1200/+29.2200+129.1068/+29.2064+129.1000/+29.2200+129.0944/+29.2400+129.0940/+29.2490+129.1000/+29.2600+129.1073/+29.2701+129.1200/+29.2800+129.1299/+29.2927+129.1400/+29.3000+129.1445/+29.3141+129.1600/+29.3200+129.1670/+29.3295+129.1800/+29.3400+129.1973/+29.3419+129.2000/+29.3600+129.2133/+29.3672+129.2200/+29.3800+129.2395/+29.3802+129.2400/+29.3916+129.2600/+29.3988+129.2800/+29.4000+129.2809/+29.4200+129.2935/+29.4249+129.3000/+29.4329+129.3200/+29.4400+129.3286/+29.4577+129.3400/+29.4577+129.3600/+29.4600+129.3653/+29.4731+129.3800/+29.4800+129.3858/+29.4914+129.4000/+29.5000+129.4136/+29.5053+129.4200/+29.5140+129.4400/+29.5170+129.4600/+29.5200+129.4667/+29.5325+129.4800/+29.5393+129.5000/+29.5400+129.5013/+29.5574+129.5200/+29.5600+129.5271/+29.5727+129.5400/+29.5794+129.5600/+29.5800+129.5616/+29.5981+129.5800/+29.6000+129.5909/+29.6091+129.6000/+29.6196+129.6200/+29.6200+129.6213/+29.6387+129.6400/+29.6399+129.6600/+29.6400+129.6601/+29.6598+129.6800/ +29.2044+129.0600/+29.2040+129.0800/+29.2000+129.0914/+29.1987+129.0800/+29.1957+129.0600/+29.2000+129.0514/+29.2044+129.0600/ 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+129.7127/+29.6073+129.7000/+29.6121+129.6800/+29.6200+129.6717/+29.6258+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 +29.6597+129.6800/+29.6599+129.7000/+29.6597+129.7200/+29.6400+129.7397/+29.6200+129.7386/+29.6014+129.7200/+29.6000+129.7000/+29.5802+129.6800/+29.5800+129.6792/+29.5609+129.6600/+29.5600+129.6550/+29.5450+129.6400/+29.5401+129.6200/+29.5400+129.6198/+29.5209+129.6000/+29.5200+129.5975/+29.5026+129.5800/+29.5000+129.5731/+29.4870+129.5600/+29.4800+129.5403/+29.4797+129.5400/+29.4612+129.5200/+29.4600+129.5179/+29.4400+129.5127/+29.4266+129.5000/+29.4200+129.4906/+29.4099+129.4800/+29.4013+129.4600/+29.4000+129.4568/+29.3837+129.4400/+29.3800+129.4371/+29.3632+129.4200/+29.3600+129.4115/+29.3488+129.4000/+29.3400+129.3930/+29.3306+129.3800/+29.3234+129.3600/+29.3200+129.3538/+29.3054+129.3400/+29.3000+129.3327/+29.2841+129.3200/+29.2800+129.3149/+29.2716+129.3000/+29.2629+129.2800/+29.2600+129.2758/+29.2440+129.2600/+29.2400+129.2549/+29.2317+129.2400/+29.2232+129.2200/+29.2200+129.2134/+29.2127+129.2000/+29.2060+129.1800/+29.2000+129.1764/+29.1894+129.1600/+29.1880+129.1400/+29.2000+129.1293/+29.2111+129.1400/+29.2200+129.1556/+29.2247+129.1600/+29.2400+129.1667/+29.2600+129.1757/+29.2644+129.1800/+29.2789+129.2000/+29.2800+129.2021/+29.2994+129.2200/+29.3000+129.2203/+29.3200+129.2394/+29.3204+129.2400/+29.3333+129.2600/+29.3400+129.2668/+29.3586+129.2800/+29.3600+129.2810/+29.3743+129.3000/+29.3800+129.3068/+29.3871+129.3200/+29.4000+129.3325/+29.4126+129.3400/+29.4200+129.3484/+29.4258+129.3600/+29.4354+129.3800/+29.4400+129.3853/+29.4536+129.4000/+29.4600+129.4087/+29.4750+129.4200/+29.4800+129.4255/+29.4899+129.4400/+29.4970+129.4600/+29.5000+129.4742/+29.5044+129.4800/+29.5192+129.5000/+29.5200+129.5010/+29.5380+129.5200/+29.5400+129.5237/+29.5550+129.5400/+29.5600+129.5530/+29.5667+129.5600/+29.5795+129.5800/+29.5800+129.5807/+29.5988+129.6000/+29.6000+129.6027/+29.6172+129.6200/+29.6200+129.6386/+29.6214+129.6400/+29.6398+129.6600/+29.6400+129.6603/+29.6597+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+129.7141/+29.6059+129.7000/+29.6105+129.6800/+29.6200+129.6709/+29.6269+129.6800/+29.6400+129.6812/+29.6588+129.7000/ 南西 4 鹿児島県十島村 4630400 2026-08-05T21:00:00+09:00 2026-08-06T00:00:00+09:00 降灰 70 +29.6596+129.6800/+29.6599+129.7000/+29.6597+129.7200/+29.6400+129.7397/+29.6200+129.7388/+29.6012+129.7200/+29.6000+129.7152/+29.5848+129.7000/+29.5800+129.6800/+29.5800+129.6798/+29.5603+129.6600/+29.5600+129.6591/+29.5410+129.6400/+29.5400+129.6372/+29.5229+129.6200/+29.5200+129.6121/+29.5080+129.6000/+29.5000+129.5800/+29.4810+129.5600/+29.4800+129.5581/+29.4625+129.5400/+29.4600+129.5360/+29.4443+129.5200/+29.4400+129.5167/+29.4200+129.5015/+29.4190+129.5000/+29.4024+129.4800/+29.4000+129.4750/+29.3818+129.4600/+29.3800+129.4578/+29.3674+129.4400/+29.3600+129.4315/+29.3408+129.4200/+29.3400+129.4191/+29.3306+129.4000/+29.3200+129.3814/+29.3176+129.3800/+29.3007+129.3600/+29.3000+129.3585/+29.2828+129.3400/+29.2800+129.3364/+29.2690+129.3200/+29.2600+129.3020/+29.2587+129.3000/+29.2414+129.2800/+29.2400+129.2790/+29.2248+129.2600/+29.2200+129.2445/+29.2184+129.2400/+29.2097+129.2200/+29.2000+129.2160/+29.1868+129.2000/+29.1909+129.1800/+29.2000+129.1681/+29.2094+129.1800/+29.2200+129.1903/+29.2332+129.2000/+29.2400+129.2041/+29.2600+129.2146/+29.2660+129.2200/+29.2800+129.2347/+29.2843+129.2400/+29.3000+129.2540/+29.3075+129.2600/+29.3200+129.2692/+29.3304+129.2800/+29.3400+129.2941/+29.3444+129.3000/+29.3579+129.3200/+29.3600+129.3212/+29.3800+129.3310/+29.3883+129.3400/+29.3969+129.3600/+29.4000+129.3626/+29.4200+129.3708/+29.4272+129.3800/+29.4368+129.4000/+29.4400+129.4029/+29.4547+129.4200/+29.4600+129.4363/+29.4636+129.4400/+29.4800+129.4461/+29.4918+129.4600/+29.4936+129.4800/+29.5000+129.4910/+29.5087+129.5000/+29.5200+129.5200/+29.5392+129.5400/+29.5400+129.5410/+29.5584+129.5600/+29.5600+129.5624/+29.5774+129.5800/+29.5800+129.5849/+29.5951+129.6000/+29.6000+129.6143/+29.6057+129.6200/+29.6197+129.6400/+29.6200+129.6403/+29.6397+129.6600/+29.6400+129.6604/+29.6596+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+129.7150/+29.6050+129.7000/+29.6076+129.6800/+29.6200+129.6700/+29.6287+129.6800/+29.6400+129.6812/+29.6588+129.7000/ 南西 4 鹿児島県十島村 4630400 2026-08-06T00:00:00+09:00 2026-08-06T03:00:00+09:00 降灰 70 +29.6591+129.6800/+29.6599+129.7000/+29.6597+129.7200/+29.6400+129.7397/+29.6200+129.7391/+29.6009+129.7200/+29.6000+129.7191/+29.5809+129.7000/+29.5800+129.6983/+29.5617+129.6800/+29.5600+129.6774/+29.5426+129.6600/+29.5400+129.6568/+29.5232+129.6400/+29.5200+129.6361/+29.5039+129.6200/+29.5000+129.6159/+29.4839+129.6000/+29.4800+129.5957/+29.4642+129.5800/+29.4600+129.5756/+29.4439+129.5600/+29.4400+129.5553/+29.4239+129.5400/+29.4200+129.5373/+29.4000+129.5284/+29.3883+129.5200/+29.3800+129.5121/+29.3710+129.5000/+29.3600+129.4899/+29.3450+129.4800/+29.3400+129.4760/+29.3253+129.4600/+29.3200+129.4481/+29.3119+129.4400/+29.3000+129.4320/+29.2895+129.4200/+29.2800+129.4101/+29.2682+129.4000/+29.2600+129.3863/+29.2537+129.3800/+29.2400+129.3656/+29.2346+129.3600/+29.2228+129.3400/+29.2200+129.3350/+29.2086+129.3200/+29.2000+129.3121/+29.1882+129.3000/+29.1800+129.2851/+29.1764+129.2800/+29.1600+129.2639/+29.1552+129.2600/+29.1400+129.2405/+29.1397+129.2400/+29.1321+129.2200/+29.1203+129.2000/+29.1400+129.1827/+29.1600+129.1894/+29.1698+129.2000/+29.1800+129.2148/+29.1892+129.2200/+29.2000+129.2232/+29.2186+129.2400/+29.2200+129.2423/+29.2338+129.2600/+29.2400+129.2645/+29.2600+129.2750/+29.2664+129.2800/+29.2800+129.2946/+29.2837+129.3000/+29.3000+129.3097/+29.3199+129.3200/+29.3200+129.3201/+29.3392+129.3400/+29.3400+129.3407/+29.3521+129.3600/+29.3600+129.3662/+29.3800+129.3766/+29.3834+129.3800/+29.3938+129.4000/+29.4000+129.4061/+29.4176+129.4200/+29.4200+129.4224/+29.4336+129.4400/+29.4400+129.4446/+29.4549+129.4600/+29.4600+129.4650/+29.4728+129.4800/+29.4789+129.5000/+29.4800+129.5011/+29.4984+129.5200/+29.5000+129.5213/+29.5184+129.5400/+29.5200+129.5414/+29.5381+129.5600/+29.5400+129.5617/+29.5582+129.5800/+29.5600+129.5817/+29.5780+129.6000/+29.5800+129.6017/+29.5983+129.6200/+29.6000+129.6216/+29.6184+129.6400/+29.6200+129.6413/+29.6387+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+129.7142/+29.6058+129.7000/+29.6051+129.6800/+29.6200+129.6688/+29.6312+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９時から６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 　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　　　　　　７０ｋｍ　　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　　　　　　７０ｋｍ　　４ｋｍ　　　　　 　０６日００時から０３時まで　南西　　　　　　７０ｋｍ　　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。