2026-08-24T17:00:00Z 通常 気象庁本庁 気象庁 2026-08-25T02:00:00+09:00 2026-08-25T03:00:00+09:00 2026-08-25T21:00:00+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、２５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 薩摩硫黄島 508 降灰 70 鹿児島県三島村 4630300 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 小さな噴石の落下 75 鹿児島県三島村 4630300 2026-08-25T03:00:00+09:00 2026-08-25T06:00:00+09:00 降灰 70 +30.8212+129.6600/+30.8217+129.6800/+30.8222+129.7000/+30.8240+129.7200/+30.8256+129.7400/+30.8274+129.7600/+30.8294+129.7800/+30.8276+129.8000/+30.8277+129.8200/+30.8279+129.8400/+30.8287+129.8600/+30.8295+129.8800/+30.8268+129.9000/+30.8272+129.9200/+30.8284+129.9400/+30.8290+129.9600/+30.8292+129.9800/+30.8200+129.9916/+30.8178+130.0000/+30.8177+130.0200/+30.8178+130.0400/+30.8177+130.0600/+30.8182+130.0800/+30.8183+130.1000/+30.8186+130.1200/+30.8188+130.1400/+30.8191+130.1600/+30.8193+130.1800/+30.8195+130.2000/+30.8197+130.2200/+30.8198+130.2400/+30.8199+130.2600/+30.8199+130.2800/+30.8199+130.3000/+30.8000+130.3199/+30.7800+130.3198/+30.7602+130.3000/+30.7601+130.2800/+30.7601+130.2600/+30.7600+130.2475/+30.7525+130.2400/+30.7425+130.2200/+30.7414+130.2000/+30.7411+130.1800/+30.7410+130.1600/+30.7409+130.1400/+30.7404+130.1200/+30.7400+130.1110/+30.7333+130.1000/+30.7286+130.0800/+30.7272+130.0600/+30.7259+130.0400/+30.7251+130.0200/+30.7227+130.0000/+30.7222+129.9800/+30.7218+129.9600/+30.7210+129.9400/+30.7200+129.9247/+30.7191+129.9200/+30.7178+129.9000/+30.7188+129.8800/+30.7200+129.8675/+30.7203+129.8600/+30.7214+129.8400/+30.7227+129.8200/+30.7242+129.8000/+30.7223+129.7800/+30.7265+129.7600/+30.7305+129.7400/+30.7340+129.7200/+30.7383+129.7000/+30.7400+129.6916/+30.7434+129.6800/+30.7492+129.6600/+30.7561+129.6400/+30.7600+129.6306/+30.7661+129.6200/+30.7789+129.6000/+30.7800+129.5977/+30.7896+129.5800/+30.8000+129.5639/+30.8055+129.5800/+30.8108+129.6000/+30.8157+129.6200/+30.8194+129.6400/+30.8200+129.6465/+30.8212+129.6600/ 西 70 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8017+130.2600/+30.8164+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3074/+30.7726+130.3000/+30.7693+130.2800/+30.7800+130.2629/+30.7934+130.2600/+30.8000+130.2568/+30.8017+130.2600/ 西 4 鹿児島県三島村 4630300 2026-08-25T06:00:00+09:00 2026-08-25T09:00:00+09:00 降灰 70 +30.8204+129.6200/+30.8232+129.6400/+30.8256+129.6600/+30.8276+129.6800/+30.8293+129.7000/+30.8316+129.7200/+30.8335+129.7400/+30.8349+129.7600/+30.8359+129.7800/+30.8326+129.8000/+30.8324+129.8200/+30.8321+129.8400/+30.8325+129.8600/+30.8328+129.8800/+30.8315+129.9000/+30.8322+129.9200/+30.8327+129.9400/+30.8331+129.9600/+30.8334+129.9800/+30.8200+129.9975/+30.8193+130.0000/+30.8196+130.0200/+30.8193+130.0400/+30.8193+130.0600/+30.8191+130.0800/+30.8191+130.1000/+30.8193+130.1200/+30.8194+130.1400/+30.8195+130.1600/+30.8196+130.1800/+30.8197+130.2000/+30.8198+130.2200/+30.8199+130.2400/+30.8199+130.2600/+30.8199+130.2800/+30.8198+130.3000/+30.8000+130.3198/+30.7800+130.3197/+30.7603+130.3000/+30.7601+130.2800/+30.7601+130.2600/+30.7601+130.2400/+30.7601+130.2200/+30.7600+130.2145/+30.7490+130.2000/+30.7443+130.1800/+30.7429+130.1600/+30.7422+130.1400/+30.7421+130.1200/+30.7420+130.1000/+30.7416+130.0800/+30.7413+130.0600/+30.7407+130.0400/+30.7404+130.0200/+30.7400+130.0139/+30.7340+130.0000/+30.7262+129.9800/+30.7272+129.9600/+30.7280+129.9400/+30.7281+129.9200/+30.7277+129.9000/+30.7252+129.8800/+30.7255+129.8600/+30.7260+129.8400/+30.7272+129.8200/+30.7287+129.8000/+30.7248+129.7800/+30.7273+129.7600/+30.7302+129.7400/+30.7337+129.7200/+30.7378+129.7000/+30.7400+129.6893/+30.7426+129.6800/+30.7489+129.6600/+30.7548+129.6400/+30.7600+129.6204/+30.7601+129.6200/+30.7674+129.6000/+30.7734+129.5800/+30.7797+129.5600/+30.7800+129.5591/+30.7863+129.5400/+30.7931+129.5200/+30.8000+129.5001/+30.8049+129.5200/+30.8087+129.5400/+30.8119+129.5600/+30.8146+129.5800/+30.8169+129.6000/+30.8200+129.6177/+30.8204+129.6200/ 西 70 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8050+130.2600/+30.8169+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.7800+130.2883/+30.7717+130.2800/+30.7800+130.2660/+30.7895+130.2600/+30.8000+130.2511/+30.8050+130.2600/ 西 4 鹿児島県三島村 4630300 2026-08-25T09:00:00+09:00 2026-08-25T12:00:00+09:00 降灰 70 +30.8209+129.6200/+30.8225+129.6400/+30.8239+129.6600/+30.8252+129.6800/+30.8264+129.7000/+30.8278+129.7200/+30.8291+129.7400/+30.8306+129.7600/+30.8323+129.7800/+30.8287+129.8000/+30.8294+129.8200/+30.8299+129.8400/+30.8309+129.8600/+30.8318+129.8800/+30.8298+129.9000/+30.8298+129.9200/+30.8308+129.9400/+30.8316+129.9600/+30.8322+129.9800/+30.8200+129.9947/+30.8187+130.0000/+30.8188+130.0200/+30.8189+130.0400/+30.8190+130.0600/+30.8191+130.0800/+30.8192+130.1000/+30.8194+130.1200/+30.8195+130.1400/+30.8196+130.1600/+30.8197+130.1800/+30.8198+130.2000/+30.8198+130.2200/+30.8199+130.2400/+30.8199+130.2600/+30.8199+130.2800/+30.8198+130.3000/+30.8000+130.3198/+30.7800+130.3196/+30.7604+130.3000/+30.7601+130.2800/+30.7601+130.2600/+30.7601+130.2400/+30.7601+130.2200/+30.7600+130.2000/+30.7600+130.1973/+30.7482+130.1800/+30.7442+130.1600/+30.7429+130.1400/+30.7425+130.1200/+30.7423+130.1000/+30.7420+130.0800/+30.7419+130.0600/+30.7414+130.0400/+30.7408+130.0200/+30.7400+130.0004/+30.7399+130.0000/+30.7258+129.9800/+30.7260+129.9600/+30.7257+129.9400/+30.7249+129.9200/+30.7252+129.9000/+30.7240+129.8800/+30.7238+129.8600/+30.7236+129.8400/+30.7243+129.8200/+30.7252+129.8000/+30.7200+129.7822/+30.7191+129.7800/+30.7200+129.7689/+30.7208+129.7600/+30.7224+129.7400/+30.7236+129.7200/+30.7251+129.7000/+30.7276+129.6800/+30.7307+129.6600/+30.7350+129.6400/+30.7400+129.6221/+30.7409+129.6200/+30.7500+129.6000/+30.7526+129.5800/+30.7556+129.5600/+30.7600+129.5400/+30.7681+129.5200/+30.7756+129.5000/+30.7800+129.4925/+30.7887+129.4800/+30.8000+129.4674/+30.8042+129.4800/+30.8099+129.5000/+30.8119+129.5200/+30.8138+129.5400/+30.8157+129.5600/+30.8175+129.5800/+30.8191+129.6000/+30.8200+129.6100/+30.8209+129.6200/ 西 80 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8088+130.2600/+30.8171+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.7800+130.2823/+30.7777+130.2800/+30.7800+130.2728/+30.7846+130.2600/+30.8000+130.2457/+30.8088+130.2600/ 西 4 鹿児島県三島村 4630300 2026-08-25T12:00:00+09:00 2026-08-25T15:00:00+09:00 降灰 70 +30.8210+129.5600/+30.8230+129.5800/+30.8248+129.6000/+30.8266+129.6200/+30.8283+129.6400/+30.8304+129.6600/+30.8326+129.6800/+30.8344+129.7000/+30.8360+129.7200/+30.8373+129.7400/+30.8381+129.7600/+30.8384+129.7800/+30.8336+129.8000/+30.8344+129.8200/+30.8350+129.8400/+30.8354+129.8600/+30.8357+129.8800/+30.8344+129.9000/+30.8346+129.9200/+30.8354+129.9400/+30.8358+129.9600/+30.8360+129.9800/+30.8285+130.0000/+30.8284+130.0200/+30.8242+130.0400/+30.8242+130.0600/+30.8214+130.0800/+30.8200+130.0892/+30.8199+130.1000/+30.8199+130.1200/+30.8198+130.1400/+30.8198+130.1600/+30.8198+130.1800/+30.8199+130.2000/+30.8199+130.2200/+30.8199+130.2400/+30.8200+130.2600/+30.8199+130.2800/+30.8198+130.3000/+30.8000+130.3198/+30.7800+130.3196/+30.7605+130.3000/+30.7601+130.2800/+30.7601+130.2600/+30.7601+130.2400/+30.7601+130.2200/+30.7600+130.2000/+30.7600+130.1968/+30.7485+130.1800/+30.7446+130.1600/+30.7434+130.1400/+30.7430+130.1200/+30.7427+130.1000/+30.7427+130.0800/+30.7425+130.0600/+30.7417+130.0400/+30.7419+130.0200/+30.7411+130.0000/+30.7400+129.9957/+30.7286+129.9800/+30.7289+129.9600/+30.7293+129.9400/+30.7299+129.9200/+30.7296+129.9000/+30.7273+129.8800/+30.7279+129.8600/+30.7287+129.8400/+30.7301+129.8200/+30.7318+129.8000/+30.7262+129.7800/+30.7271+129.7600/+30.7283+129.7400/+30.7298+129.7200/+30.7316+129.7000/+30.7351+129.6800/+30.7393+129.6600/+30.7400+129.6563/+30.7436+129.6400/+30.7471+129.6200/+30.7511+129.6000/+30.7549+129.5800/+30.7592+129.5600/+30.7600+129.5566/+30.7643+129.5400/+30.7697+129.5200/+30.7752+129.5000/+30.7787+129.4800/+30.7800+129.4735/+30.7828+129.4600/+30.7870+129.4400/+30.7912+129.4200/+30.7959+129.4000/+30.8000+129.3863/+30.8023+129.4000/+30.8050+129.4200/+30.8075+129.4400/+30.8101+129.4600/+30.8127+129.4800/+30.8149+129.5000/+30.8171+129.5200/+30.8190+129.5400/+30.8200+129.5498/+30.8210+129.5600/ 西 90 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8091+130.2600/+30.8174+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.7800+130.2835/+30.7765+130.2800/+30.7800+130.2692/+30.7835+130.2600/+30.8000+130.2446/+30.8091+130.2600/ 西 4 鹿児島県三島村 4630300 2026-08-25T15:00:00+09:00 2026-08-25T18:00:00+09:00 降灰 70 +30.8417+129.6600/+30.8455+129.6800/+30.8487+129.7000/+30.8488+129.7200/+30.8489+129.7400/+30.8491+129.7600/+30.8492+129.7800/+30.8482+129.8000/+30.8482+129.8200/+30.8482+129.8400/+30.8516+129.8600/+30.8543+129.8800/+30.8482+129.9000/+30.8484+129.9200/+30.8436+129.9400/+30.8401+129.9600/+30.8400+129.9628/+30.8399+129.9800/+30.8370+130.0000/+30.8371+130.0200/+30.8369+130.0400/+30.8366+130.0600/+30.8363+130.0800/+30.8366+130.1000/+30.8369+130.1200/+30.8368+130.1400/+30.8362+130.1600/+30.8356+130.1800/+30.8344+130.2000/+30.8319+130.2200/+30.8309+130.2400/+30.8336+130.2600/+30.8287+130.2800/+30.8200+130.2888/+30.8198+130.3000/+30.8000+130.3199/+30.7800+130.3196/+30.7605+130.3000/+30.7602+130.2800/+30.7601+130.2600/+30.7601+130.2400/+30.7601+130.2200/+30.7601+130.2000/+30.7600+130.1881/+30.7538+130.1800/+30.7482+130.1600/+30.7456+130.1400/+30.7439+130.1200/+30.7436+130.1000/+30.7433+130.0800/+30.7431+130.0600/+30.7424+130.0400/+30.7417+130.0200/+30.7415+130.0000/+30.7400+129.9941/+30.7295+129.9800/+30.7301+129.9600/+30.7304+129.9400/+30.7304+129.9200/+30.7297+129.9000/+30.7275+129.8800/+30.7293+129.8600/+30.7318+129.8400/+30.7338+129.8200/+30.7363+129.8000/+30.7325+129.7800/+30.7327+129.7600/+30.7343+129.7400/+30.7379+129.7200/+30.7400+129.7103/+30.7423+129.7000/+30.7459+129.6800/+30.7504+129.6600/+30.7557+129.6400/+30.7600+129.6248/+30.7613+129.6200/+30.7667+129.6000/+30.7697+129.5800/+30.7732+129.5600/+30.7774+129.5400/+30.7800+129.5292/+30.7824+129.5200/+30.7884+129.5000/+30.7939+129.4800/+30.7998+129.4600/+30.8000+129.4589/+30.8002+129.4600/+30.8059+129.4800/+30.8108+129.5000/+30.8163+129.5200/+30.8200+129.5359/+30.8209+129.5400/+30.8251+129.5600/+30.8292+129.5800/+30.8329+129.6000/+30.8360+129.6200/+30.8385+129.6400/+30.8400+129.6496/+30.8417+129.6600/ 西 80 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8091+130.2600/+30.8175+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.7800+130.2824/+30.7776+130.2800/+30.7800+130.2726/+30.7843+130.2600/+30.8000+130.2439/+30.8091+130.2600/ 西 4 鹿児島県三島村 4630300 2026-08-25T18:00:00+09:00 2026-08-25T21:00:00+09:00 降灰 70 +30.9213+129.5600/+30.9241+129.5800/+30.9261+129.6000/+30.9274+129.6200/+30.9285+129.6400/+30.9283+129.6600/+30.9272+129.6800/+30.9261+129.7000/+30.9264+129.7200/+30.9266+129.7400/+30.9258+129.7600/+30.9241+129.7800/+30.9222+129.8000/+30.9200+129.8025/+30.9116+129.8200/+30.9103+129.8400/+30.9099+129.8600/+30.9096+129.8800/+30.9088+129.9000/+30.9000+129.9128/+30.8972+129.9200/+30.8958+129.9400/+30.8944+129.9600/+30.8930+129.9800/+30.8913+130.0000/+30.8800+130.0126/+30.8775+130.0200/+30.8754+130.0400/+30.8725+130.0600/+30.8685+130.0800/+30.8600+130.0944/+30.8596+130.1000/+30.8586+130.1200/+30.8582+130.1400/+30.8570+130.1600/+30.8521+130.1800/+30.8400+130.1950/+30.8399+130.2000/+30.8397+130.2200/+30.8395+130.2400/+30.8392+130.2600/+30.8383+130.2800/+30.8200+130.2989/+30.8199+130.3000/+30.8000+130.3198/+30.7800+130.3193/+30.7607+130.3000/+30.7603+130.2800/+30.7604+130.2600/+30.7607+130.2400/+30.7613+130.2200/+30.7623+130.2000/+30.7636+130.1800/+30.7651+130.1600/+30.7671+130.1400/+30.7717+130.1200/+30.7717+130.1000/+30.7795+130.0800/+30.7782+130.0600/+30.7800+130.0512/+30.7804+130.0400/+30.7817+130.0200/+30.7813+130.0000/+30.7808+129.9800/+30.7819+129.9600/+30.7838+129.9400/+30.7871+129.9200/+30.7904+129.9000/+30.7917+129.8800/+30.7980+129.8600/+30.8000+129.8549/+30.8025+129.8400/+30.8046+129.8200/+30.8071+129.8000/+30.8085+129.7800/+30.8113+129.7600/+30.8147+129.7400/+30.8185+129.7200/+30.8200+129.7129/+30.8231+129.7000/+30.8268+129.6800/+30.8314+129.6600/+30.8369+129.6400/+30.8400+129.6301/+30.8445+129.6200/+30.8539+129.6000/+30.8600+129.5861/+30.8630+129.5800/+30.8727+129.5600/+30.8800+129.5435/+30.8816+129.5400/+30.8905+129.5200/+30.9000+129.5007/+30.9112+129.5200/+30.9175+129.5400/+30.9200+129.5522/+30.9213+129.5600/ 西 80 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8273+130.2600/+30.8248+130.2800/+30.8200+130.2848/+30.8188+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.7826+130.2800/+30.7908+130.2600/+30.8000+130.2439/+30.8200+130.2460/+30.8273+130.2600/ 北西 5 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、２５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。 　２５日３時から２５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 　２５日０３時から０６時まで　西　　　　　　　７０ｋｍ　　４ｋｍ　　　　　 　２５日０６時から０９時まで　西　　　　　　　７０ｋｍ　　４ｋｍ　　　　　 　２５日０９時から１２時まで　西　　　　　　　８０ｋｍ　　４ｋｍ　　　　　 　２５日１２時から１５時まで　西　　　　　　　９０ｋｍ　　４ｋｍ　　　　　 　２５日１５時から１８時まで　西　　　　　　　８０ｋｍ　　４ｋｍ　　　　　 　２５日１８時から２１時まで　西　　　　　　　８０ｋｍ　　５ｋｍ　　　　　 　 　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 　 　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。 　強風のため、遠方まで小さな噴石が流されるおそれがあります。