2026-08-20T08:00:00Z 通常 気象庁本庁 気象庁 2026-08-20T17:00:00+09:00 2026-08-20T18:00:00+09:00 2026-08-21T12:00:00+09:00 551 発表 1 降灰予報 1.1_0 　現在、霧島山（新燃岳）は噴火警戒レベル２（火口周辺規制）です。霧島山（新燃岳）で噴火が発生した場合には、２０日２１時から２４時までは火口から北西方向、２１日０９時から１２時までは火口から北西方向に降灰が予想されます。 降灰予報（定時） 06 霧島山（新燃岳） 551 降灰 70 熊本県人吉市 4320300 熊本県水俣市 4320500 熊本県芦北町 4348200 熊本県津奈木町 4348400 熊本県球磨村 4351300 宮崎県小林市 4520500 宮崎県えびの市 4520900 鹿児島県出水市 4620800 鹿児島県霧島市 4621800 鹿児島県伊佐市 4622400 鹿児島県さつま町 4639200 鹿児島県湧水町 4645200 小さな噴石の落下 75 宮崎県小林市 4520500 鹿児島県霧島市 4621800 降灰予報（定時） 06 霧島山（新燃岳） 551 +3154.57+13053.18+1421/ 降灰 70 熊本県人吉市 4320300 熊本県水俣市 4320500 熊本県芦北町 4348200 熊本県津奈木町 4348400 熊本県球磨村 4351300 宮崎県小林市 4520500 宮崎県えびの市 4520900 鹿児島県出水市 4620800 鹿児島県霧島市 4621800 鹿児島県伊佐市 4622400 鹿児島県さつま町 4639200 鹿児島県湧水町 4645200 小さな噴石の落下 75 宮崎県小林市 4520500 鹿児島県霧島市 4621800 2026-08-20T18:00:00+09:00 2026-08-20T21:00:00+09:00 降灰 70 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西 40 宮崎県小林市 4520500 宮崎県えびの市 4520900 鹿児島県霧島市 4621800 鹿児島県伊佐市 4622400 鹿児島県さつま町 4639200 鹿児島県湧水町 4645200 小さな噴石の落下 75 1 +31.9388+130.8800/+31.9200+130.8988/+31.9000+130.8988/+31.8812+130.8800/+31.9000+130.8602/+31.9200+130.8601/+31.9388+130.8800/ 西 1 宮崎県小林市 4520500 鹿児島県霧島市 4621800 2026-08-20T21:00:00+09:00 2026-08-21T00:00:00+09:00 降灰 70 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北西 50 熊本県人吉市 4320300 熊本県水俣市 4320500 熊本県球磨村 4351300 宮崎県小林市 4520500 宮崎県えびの市 4520900 鹿児島県出水市 4620800 鹿児島県霧島市 4621800 鹿児島県伊佐市 4622400 鹿児島県さつま町 4639200 鹿児島県湧水町 4645200 小さな噴石の落下 75 1 +31.9388+130.8800/+31.9200+130.8988/+31.9000+130.8988/+31.8812+130.8800/+31.9000+130.8612/+31.9200+130.8601/+31.9388+130.8800/ 西 1 宮崎県小林市 4520500 鹿児島県霧島市 4621800 2026-08-21T00:00:00+09:00 2026-08-21T03:00:00+09:00 降灰 70 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北西 50 熊本県人吉市 4320300 熊本県水俣市 4320500 熊本県芦北町 4348200 熊本県津奈木町 4348400 熊本県球磨村 4351300 宮崎県小林市 4520500 宮崎県えびの市 4520900 鹿児島県出水市 4620800 鹿児島県霧島市 4621800 鹿児島県伊佐市 4622400 鹿児島県さつま町 4639200 鹿児島県湧水町 4645200 小さな噴石の落下 75 1 +31.9247+130.8600/+31.9388+130.8800/+31.9200+130.8988/+31.9000+130.8988/+31.8812+130.8800/+31.9000+130.8612/+31.9161+130.8600/+31.9200+130.8552/+31.9247+130.8600/ 西 3 宮崎県小林市 4520500 鹿児島県霧島市 4621800 2026-08-21T03:00:00+09:00 2026-08-21T06:00:00+09:00 降灰 70 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北西 50 熊本県水俣市 4320500 熊本県芦北町 4348200 宮崎県小林市 4520500 宮崎県えびの市 4520900 鹿児島県出水市 4620800 鹿児島県霧島市 4621800 鹿児島県伊佐市 4622400 鹿児島県さつま町 4639200 鹿児島県湧水町 4645200 小さな噴石の落下 75 1 +31.9223+130.8600/+31.9388+130.8800/+31.9200+130.8988/+31.9000+130.8988/+31.8812+130.8800/+31.9000+130.8612/+31.9181+130.8600/+31.9200+130.8575/+31.9223+130.8600/ 西 3 宮崎県小林市 4520500 鹿児島県霧島市 4621800 2026-08-21T06:00:00+09:00 2026-08-21T09:00:00+09:00 降灰 70 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北西 60 熊本県水俣市 4320500 熊本県芦北町 4348200 宮崎県小林市 4520500 宮崎県えびの市 4520900 鹿児島県出水市 4620800 鹿児島県霧島市 4621800 鹿児島県伊佐市 4622400 鹿児島県さつま町 4639200 鹿児島県湧水町 4645200 小さな噴石の落下 75 1 +31.9282+130.8600/+31.9388+130.8800/+31.9200+130.8988/+31.9000+130.8988/+31.8812+130.8800/+31.9000+130.8612/+31.9129+130.8600/+31.9200+130.8511/+31.9282+130.8600/ 西 3 宮崎県小林市 4520500 鹿児島県霧島市 4621800 2026-08-21T09:00:00+09:00 2026-08-21T12:00:00+09:00 降灰 70 +32.2029+130.4200/+32.2139+130.4400/+32.2169+130.4600/+32.2153+130.4800/+32.2116+130.5000/+32.2000+130.5070/+32.1959+130.5200/+32.1916+130.5400/+32.1834+130.5600/+32.1800+130.5675/+32.1697+130.5800/+32.1600+130.5860/+32.1503+130.6000/+32.1400+130.6141/+32.1356+130.6200/+32.1200+130.6333/+32.1000+130.6391/+32.0973+130.6400/+32.0800+130.6515/+32.0772+130.6600/+32.0686+130.6800/+32.0600+130.6899/+32.0532+130.7000/+32.0400+130.7125/+32.0387+130.7200/+32.0200+130.7397/+32.0199+130.7400/+32.0189+130.7600/+32.0000+130.7798/+32.0000+130.7800/+31.9961+130.8000/+31.9800+130.8161/+31.9798+130.8200/+31.9715+130.8400/+31.9600+130.8516/+31.9600+130.8600/+31.9543+130.8800/+31.9400+130.8943/+31.9399+130.9000/+31.9200+130.9199/+31.9000+130.9199/+31.8801+130.9000/+31.8800+130.8800/+31.8800+130.8600/+31.8806+130.8400/+31.9000+130.8206/+31.9000+130.8200/+31.9001+130.8000/+31.9014+130.7800/+31.9200+130.7608/+31.9201+130.7600/+31.9209+130.7400/+31.9284+130.7200/+31.9400+130.7063/+31.9409+130.7000/+31.9444+130.6800/+31.9600+130.6631/+31.9607+130.6600/+31.9636+130.6400/+31.9702+130.6200/+31.9800+130.6068/+31.9810+130.6000/+31.9800+130.5854/+31.9774+130.5800/+31.9800+130.5759/+31.9825+130.5600/+31.9868+130.5400/+31.9982+130.5200/+32.0000+130.5176/+32.0057+130.5000/+32.0110+130.4800/+32.0180+130.4600/+32.0200+130.4565/+32.0400+130.4406/+32.0403+130.4400/+32.0462+130.4200/+32.0600+130.4018/+32.0625+130.4000/+32.0650+130.3800/+32.0788+130.3600/+32.0800+130.3584/+32.1000+130.3429/+32.1200+130.3427/+32.1400+130.3425/+32.1600+130.3462/+32.1788+130.3600/+32.1800+130.3610/+32.1920+130.3800/+32.1967+130.4000/+32.2000+130.4161/+32.2029+130.4200/ 北西 60 熊本県水俣市 4320500 熊本県芦北町 4348200 熊本県津奈木町 4348400 宮崎県小林市 4520500 宮崎県えびの市 4520900 鹿児島県出水市 4620800 鹿児島県霧島市 4621800 鹿児島県伊佐市 4622400 鹿児島県さつま町 4639200 鹿児島県湧水町 4645200 小さな噴石の落下 75 1 +31.9311+130.8600/+31.9388+130.8800/+31.9200+130.8988/+31.9000+130.8988/+31.8812+130.8800/+31.9000+130.8612/+31.9104+130.8600/+31.9200+130.8476/+31.9311+130.8600/ 西 3 宮崎県小林市 4520500 鹿児島県霧島市 4621800 　現在、霧島山（新燃岳）は噴火警戒レベル２（火口周辺規制）です。霧島山（新燃岳）で噴火が発生した場合には、２０日２１時から２４時までは火口から北西方向、２１日０９時から１２時までは火口から北西方向に降灰が予想されます。 　２０日１８時から２１日１２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 　２０日１８時から２１時まで　西　　　　　　　４０ｋｍ　　１ｋｍ　　　　　 　２０日２１時から２４時まで　北西　　　　　　５０ｋｍ　　１ｋｍ　　　　　 　２１日００時から０３時まで　北西　　　　　　５０ｋｍ　　３ｋｍ　　　　　 　２１日０３時から０６時まで　北西　　　　　　５０ｋｍ　　３ｋｍ　　　　　 　２１日０６時から０９時まで　北西　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　２１日０９時から１２時まで　北西　　　　　　６０ｋｍ　　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。 　宮崎県　：小林市、えびの市 　鹿児島県：霧島市、湧水町、伊佐市、さつま町、出水市 　熊本県　：人吉市、水俣市、球磨村、芦北町、津奈木町 　 　噴煙が火口縁上２０００ｍ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。