2026-08-24T20:00:00Z 通常 気象庁本庁 気象庁 2026-08-25T05:00:00+09:00 2026-08-25T06:00:00+09:00 2026-08-26T00:00:00+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、２５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 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 2026-08-25T06:00:00+09:00 2026-08-25T09:00:00+09:00 降灰 70 +30.8204+129.6400/+30.8238+129.6600/+30.8268+129.6800/+30.8292+129.7000/+30.8309+129.7200/+30.8323+129.7400/+30.8336+129.7600/+30.8348+129.7800/+30.8320+129.8000/+30.8310+129.8200/+30.8301+129.8400/+30.8311+129.8600/+30.8320+129.8800/+30.8308+129.9000/+30.8308+129.9200/+30.8319+129.9400/+30.8323+129.9600/+30.8324+129.9800/+30.8200+129.9970/+30.8192+130.0000/+30.8191+130.0200/+30.8189+130.0400/+30.8191+130.0600/+30.8191+130.0800/+30.8192+130.1000/+30.8192+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+130.2147/+30.7487+130.2000/+30.7441+130.1800/+30.7427+130.1600/+30.7421+130.1400/+30.7421+130.1200/+30.7419+130.1000/+30.7415+130.0800/+30.7412+130.0600/+30.7403+130.0400/+30.7400+130.0281/+30.7382+130.0200/+30.7347+130.0000/+30.7268+129.9800/+30.7267+129.9600/+30.7266+129.9400/+30.7266+129.9200/+30.7273+129.9000/+30.7259+129.8800/+30.7259+129.8600/+30.7259+129.8400/+30.7271+129.8200/+30.7286+129.8000/+30.7246+129.7800/+30.7274+129.7600/+30.7304+129.7400/+30.7334+129.7200/+30.7371+129.7000/+30.7400+129.6894/+30.7435+129.6800/+30.7522+129.6600/+30.7593+129.6400/+30.7600+129.6368/+30.7649+129.6200/+30.7727+129.6000/+30.7776+129.5800/+30.7800+129.5672/+30.7812+129.5600/+30.7848+129.5400/+30.7897+129.5200/+30.7952+129.5000/+30.8000+129.4813/+30.8037+129.5000/+30.8078+129.5200/+30.8113+129.5400/+30.8128+129.5600/+30.8126+129.5800/+30.8124+129.6000/+30.8169+129.6200/+30.8200+129.6373/+30.8204+129.6400/ 西 80 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8051+130.2600/+30.8166+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.7800+130.2866/+30.7734+130.2800/+30.7800+130.2676/+30.7894+130.2600/+30.8000+130.2518/+30.8051+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 +30.8218+129.7000/+30.8242+129.7200/+30.8261+129.7400/+30.8273+129.7600/+30.8279+129.7800/+30.8238+129.8000/+30.8248+129.8200/+30.8257+129.8400/+30.8266+129.8600/+30.8274+129.8800/+30.8228+129.9000/+30.8249+129.9200/+30.8254+129.9400/+30.8264+129.9600/+30.8277+129.9800/+30.8200+129.9881/+30.8173+130.0000/+30.8173+130.0200/+30.8176+130.0400/+30.8177+130.0600/+30.8180+130.0800/+30.8185+130.1000/+30.8189+130.1200/+30.8191+130.1400/+30.8194+130.1600/+30.8195+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+130.3196/+30.7604+130.3000/+30.7601+130.2800/+30.7601+130.2600/+30.7601+130.2400/+30.7600+130.2203/+30.7597+130.2200/+30.7445+130.2000/+30.7424+130.1800/+30.7417+130.1600/+30.7414+130.1400/+30.7413+130.1200/+30.7412+130.1000/+30.7406+130.0800/+30.7400+130.0663/+30.7365+130.0600/+30.7290+130.0400/+30.7276+130.0200/+30.7247+130.0000/+30.7221+129.9800/+30.7222+129.9600/+30.7220+129.9400/+30.7216+129.9200/+30.7208+129.9000/+30.7200+129.8934/+30.7147+129.8800/+30.7116+129.8600/+30.7089+129.8400/+30.7112+129.8200/+30.7139+129.8000/+30.7132+129.7800/+30.7149+129.7600/+30.7166+129.7400/+30.7179+129.7200/+30.7194+129.7000/+30.7200+129.6962/+30.7228+129.6800/+30.7269+129.6600/+30.7303+129.6400/+30.7320+129.6200/+30.7340+129.6000/+30.7394+129.5800/+30.7400+129.5780/+30.7525+129.5600/+30.7600+129.5434/+30.7800+129.5415/+30.7941+129.5400/+30.8000+129.5393/+30.8001+129.5400/+30.8031+129.5600/+30.8056+129.5800/+30.8078+129.6000/+30.8103+129.6200/+30.8125+129.6400/+30.8156+129.6600/+30.8190+129.6800/+30.8200+129.6867/+30.8218+129.7000/ 西 70 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8078+130.2600/+30.8171+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.7800+130.2889/+30.7711+130.2800/+30.7800+130.2618/+30.7822+130.2600/+30.8000+130.2467/+30.8078+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 +30.8221+129.8600/+30.8242+129.8800/+30.8200+129.8884/+30.8166+129.9000/+30.8173+129.9200/+30.8185+129.9400/+30.8194+129.9600/+30.8200+129.9740/+30.8207+129.9800/+30.8200+129.9808/+30.8155+130.0000/+30.8159+130.0200/+30.8168+130.0400/+30.8173+130.0600/+30.8178+130.0800/+30.8183+130.1000/+30.8188+130.1200/+30.8191+130.1400/+30.8194+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+130.3196/+30.7604+130.3000/+30.7601+130.2800/+30.7601+130.2600/+30.7601+130.2400/+30.7600+130.2286/+30.7519+130.2200/+30.7434+130.2000/+30.7421+130.1800/+30.7415+130.1600/+30.7413+130.1400/+30.7411+130.1200/+30.7409+130.1000/+30.7403+130.0800/+30.7400+130.0716/+30.7350+130.0600/+30.7304+130.0400/+30.7278+130.0200/+30.7248+130.0000/+30.7218+129.9800/+30.7211+129.9600/+30.7201+129.9400/+30.7200+129.9383/+30.7156+129.9200/+30.7112+129.9000/+30.7081+129.8800/+30.7068+129.8600/+30.7055+129.8400/+30.7054+129.8200/+30.7054+129.8000/+30.7076+129.7800/+30.7085+129.7600/+30.7090+129.7400/+30.7089+129.7200/+30.7089+129.7000/+30.7096+129.6800/+30.7105+129.6600/+30.7122+129.6400/+30.7148+129.6200/+30.7179+129.6000/+30.7193+129.5800/+30.7200+129.5700/+30.7208+129.5600/+30.7233+129.5400/+30.7271+129.5200/+30.7315+129.5000/+30.7320+129.4800/+30.7326+129.4600/+30.7351+129.4400/+30.7400+129.4206/+30.7600+129.4337/+30.7614+129.4400/+30.7646+129.4600/+30.7668+129.4800/+30.7691+129.5000/+30.7736+129.5200/+30.7776+129.5400/+30.7800+129.5561/+30.7806+129.5600/+30.7830+129.5800/+30.7853+129.6000/+30.7894+129.6200/+30.7929+129.6400/+30.7960+129.6600/+30.7990+129.6800/+30.8000+129.6870/+30.8023+129.7000/+30.8065+129.7200/+30.8100+129.7400/+30.8137+129.7600/+30.8173+129.7800/+30.8147+129.8000/+30.8172+129.8200/+30.8193+129.8400/+30.8200+129.8447/+30.8221+129.8600/ 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+130.2907/+30.7693+130.2800/+30.7794+130.2600/+30.7800+130.2585/+30.8000+130.2452/+30.8088+130.2600/ 西 5 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 +30.8218+129.6800/+30.8255+129.7000/+30.8283+129.7200/+30.8306+129.7400/+30.8320+129.7600/+30.8329+129.7800/+30.8301+129.8000/+30.8314+129.8200/+30.8325+129.8400/+30.8331+129.8600/+30.8335+129.8800/+30.8328+129.9000/+30.8350+129.9200/+30.8357+129.9400/+30.8360+129.9600/+30.8359+129.9800/+30.8335+130.0000/+30.8325+130.0200/+30.8319+130.0400/+30.8313+130.0600/+30.8326+130.0800/+30.8323+130.1000/+30.8327+130.1200/+30.8314+130.1400/+30.8303+130.1600/+30.8290+130.1800/+30.8264+130.2000/+30.8216+130.2200/+30.8200+130.2275/+30.8200+130.2400/+30.8200+130.2518/+30.8218+130.2600/+30.8200+130.2668/+30.8200+130.2800/+30.8198+130.3000/+30.8000+130.3199/+30.7800+130.3196/+30.7604+130.3000/+30.7601+130.2800/+30.7601+130.2600/+30.7601+130.2400/+30.7600+130.2317/+30.7492+130.2200/+30.7430+130.2000/+30.7421+130.1800/+30.7417+130.1600/+30.7414+130.1400/+30.7411+130.1200/+30.7405+130.1000/+30.7400+130.0895/+30.7349+130.0800/+30.7287+130.0600/+30.7267+130.0400/+30.7254+130.0200/+30.7223+130.0000/+30.7210+129.9800/+30.7204+129.9600/+30.7200+129.9468/+30.7192+129.9400/+30.7182+129.9200/+30.7100+129.9000/+30.7069+129.8800/+30.7103+129.8600/+30.7150+129.8400/+30.7155+129.8200/+30.7160+129.8000/+30.7125+129.7800/+30.7129+129.7600/+30.7139+129.7400/+30.7157+129.7200/+30.7178+129.7000/+30.7199+129.6800/+30.7200+129.6787/+30.7224+129.6600/+30.7246+129.6400/+30.7262+129.6200/+30.7281+129.6000/+30.7328+129.5800/+30.7385+129.5600/+30.7400+129.5513/+30.7457+129.5400/+30.7477+129.5200/+30.7499+129.5000/+30.7600+129.4878/+30.7721+129.5000/+30.7760+129.5200/+30.7800+129.5385/+30.7803+129.5400/+30.7909+129.5600/+30.8000+129.5764/+30.8005+129.5800/+30.8034+129.6000/+30.8083+129.6200/+30.8126+129.6400/+30.8172+129.6600/+30.8200+129.6715/+30.8218+129.6800/ 西 80 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8089+130.2600/+30.8174+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.7800+130.2898/+30.7702+130.2800/+30.7746+130.2600/+30.7800+130.2504/+30.8000+130.2448/+30.8089+130.2600/ 西 5 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 +30.8810+129.6000/+30.8843+129.6200/+30.8869+129.6400/+30.8885+129.6600/+30.8893+129.6800/+30.8899+129.7000/+30.8897+129.7200/+30.8896+129.7400/+30.8892+129.7600/+30.8887+129.7800/+30.8873+129.8000/+30.8848+129.8200/+30.8819+129.8400/+30.8812+129.8600/+30.8805+129.8800/+30.8821+129.9000/+30.8800+129.9100/+30.8793+129.9200/+30.8773+129.9400/+30.8762+129.9600/+30.8758+129.9800/+30.8744+130.0000/+30.8600+130.0163/+30.8588+130.0200/+30.8580+130.0400/+30.8573+130.0600/+30.8562+130.0800/+30.8553+130.1000/+30.8538+130.1200/+30.8475+130.1400/+30.8400+130.1519/+30.8398+130.1600/+30.8395+130.1800/+30.8394+130.2000/+30.8392+130.2200/+30.8388+130.2400/+30.8384+130.2600/+30.8371+130.2800/+30.8200+130.2976/+30.8198+130.3000/+30.8000+130.3198/+30.7800+130.3194/+30.7606+130.3000/+30.7602+130.2800/+30.7602+130.2600/+30.7603+130.2400/+30.7604+130.2200/+30.7606+130.2000/+30.7608+130.1800/+30.7611+130.1600/+30.7614+130.1400/+30.7614+130.1200/+30.7616+130.1000/+30.7619+130.0800/+30.7623+130.0600/+30.7622+130.0400/+30.7619+130.0200/+30.7623+130.0000/+30.7600+129.9894/+30.7529+129.9800/+30.7552+129.9600/+30.7577+129.9400/+30.7599+129.9200/+30.7600+129.9189/+30.7614+129.9000/+30.7642+129.8800/+30.7664+129.8600/+30.7695+129.8400/+30.7723+129.8200/+30.7761+129.8000/+30.7738+129.7800/+30.7760+129.7600/+30.7792+129.7400/+30.7800+129.7362/+30.7839+129.7200/+30.7902+129.7000/+30.7947+129.6800/+30.8000+129.6601/+30.8000+129.6600/+30.8060+129.6400/+30.8124+129.6200/+30.8191+129.6000/+30.8200+129.5951/+30.8231+129.5800/+30.8276+129.5600/+30.8324+129.5400/+30.8372+129.5200/+30.8400+129.5091/+30.8562+129.5000/+30.8600+129.4978/+30.8608+129.5000/+30.8667+129.5200/+30.8716+129.5400/+30.8755+129.5600/+30.8786+129.5800/+30.8800+129.5910/+30.8810+129.6000/ 西 80 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8217+130.2600/+30.8200+130.2617/+30.8175+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.7814+130.2800/+30.7891+130.2600/+30.8000+130.2447/+30.8200+130.2553/+30.8217+130.2600/ 北西 5 鹿児島県三島村 4630300 2026-08-25T21:00:00+09:00 2026-08-26T00:00:00+09:00 降灰 70 +30.9810+129.5800/+30.9815+129.6000/+30.9816+129.6200/+30.9817+129.6400/+30.9804+129.6600/+30.9800+129.6636/+30.9781+129.6800/+30.9760+129.7000/+30.9743+129.7200/+30.9727+129.7400/+30.9701+129.7600/+30.9661+129.7800/+30.9610+129.8000/+30.9600+129.8008/+30.9512+129.8200/+30.9491+129.8400/+30.9474+129.8600/+30.9455+129.8800/+30.9435+129.9000/+30.9409+129.9200/+30.9400+129.9211/+30.9304+129.9400/+30.9270+129.9600/+30.9225+129.9800/+30.9200+129.9876/+30.9169+130.0000/+30.9000+130.0139/+30.8985+130.0200/+30.8967+130.0400/+30.8935+130.0600/+30.8803+130.0800/+30.8800+130.0804/+30.8788+130.1000/+30.8773+130.1200/+30.8734+130.1400/+30.8600+130.1569/+30.8598+130.1600/+30.8593+130.1800/+30.8582+130.2000/+30.8488+130.2200/+30.8400+130.2293/+30.8399+130.2400/+30.8397+130.2600/+30.8393+130.2800/+30.8243+130.3000/+30.8200+130.3043/+30.8000+130.3198/+30.7800+130.3191/+30.7610+130.3000/+30.7607+130.2800/+30.7629+130.2600/+30.7800+130.2405/+30.7800+130.2400/+30.7801+130.2200/+30.7803+130.2000/+30.7807+130.1800/+30.7816+130.1600/+30.7837+130.1400/+30.7885+130.1200/+30.7946+130.1000/+30.8000+130.0900/+30.8006+130.0800/+30.8015+130.0600/+30.8038+130.0400/+30.8056+130.0200/+30.8076+130.0000/+30.8057+129.9800/+30.8084+129.9600/+30.8136+129.9400/+30.8200+129.9276/+30.8236+129.9200/+30.8278+129.9000/+30.8295+129.8800/+30.8397+129.8600/+30.8400+129.8596/+30.8450+129.8400/+30.8470+129.8200/+30.8498+129.8000/+30.8520+129.7800/+30.8579+129.7600/+30.8600+129.7534/+30.8633+129.7400/+30.8691+129.7200/+30.8767+129.7000/+30.8800+129.6860/+30.8815+129.6800/+30.8876+129.6600/+30.8953+129.6400/+30.9000+129.6299/+30.9054+129.6200/+30.9159+129.6000/+30.9200+129.5909/+30.9251+129.5800/+30.9352+129.5600/+30.9400+129.5495/+30.9524+129.5400/+30.9600+129.5319/+30.9720+129.5400/+30.9799+129.5600/+30.9800+129.5613/+30.9810+129.5800/ 西 80 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8273+130.2600/+30.8278+130.2800/+30.8200+130.2878/+30.8188+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.7827+130.2800/+30.7926+130.2600/+30.8000+130.2471/+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、２５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。 　２５日６時から２５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 　２５日０６時から０９時まで　西　　　　　　　８０ｋｍ　　４ｋｍ　　　　　 　２５日０９時から１２時まで　西　　　　　　　７０ｋｍ　　４ｋｍ　　　　　 　２５日１２時から１５時まで　西　　　　　　　８０ｋｍ　　５ｋｍ　　　　　 　２５日１５時から１８時まで　西　　　　　　　８０ｋｍ　　５ｋｍ　　　　　 　２５日１８時から２１時まで　西　　　　　　　８０ｋｍ　　５ｋｍ　　　　　 　２５日２１時から２４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。