2026-04-09T23:00:00Z 通常 気象庁本庁 気象庁 2026-04-10T08:00:00+09:00 2026-04-10T09:00:00+09:00 2026-04-11T03:00:00+09:00 207 発表 1 降灰予報 1.1_0 　現在、岩手山は噴火警戒レベル２（火口周辺規制）です。岩手山で噴火が発生した場合には、１０日０９時から１２時までは火口から北方向、１０日２１時から２４時までは火口から北東方向に降灰が予想されます。 降灰予報（定時） 06 岩手山 207 降灰 70 青森県三戸町 0244100 青森県田子町 0244300 岩手県盛岡市 0320100 岩手県久慈市 0320700 岩手県二戸市 0321300 岩手県八幡平市 0321400 岩手県滝沢市 0321600 岩手県雫石町 0330100 岩手県葛巻町 0330200 岩手県岩手町 0330300 岩手県軽米町 0350100 岩手県九戸村 0350600 岩手県洋野町 0350700 岩手県一戸町 0352400 小さな噴石の落下 75 岩手県八幡平市 0321400 岩手県滝沢市 0321600 岩手県雫石町 0330100 降灰予報（定時） 06 岩手山 207 +3951.15+14100.07+2038/ 降灰 70 青森県三戸町 0244100 青森県田子町 0244300 岩手県盛岡市 0320100 岩手県久慈市 0320700 岩手県二戸市 0321300 岩手県八幡平市 0321400 岩手県滝沢市 0321600 岩手県雫石町 0330100 岩手県葛巻町 0330200 岩手県岩手町 0330300 岩手県軽米町 0350100 岩手県九戸村 0350600 岩手県洋野町 0350700 岩手県一戸町 0352400 小さな噴石の落下 75 岩手県八幡平市 0321400 岩手県滝沢市 0321600 岩手県雫石町 0330100 2026-04-10T09:00:00+09:00 2026-04-10T12:00:00+09:00 降灰 70 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北 50 青森県三戸町 0244100 岩手県盛岡市 0320100 岩手県二戸市 0321300 岩手県八幡平市 0321400 岩手県滝沢市 0321600 岩手県雫石町 0330100 岩手県岩手町 0330300 岩手県一戸町 0352400 小さな噴石の落下 75 1 +39.8867+140.9800/+39.8883+141.0000/+39.8851+141.0200/+39.8800+141.0234/+39.8600+141.0250/+39.8550+141.0200/+39.8430+141.0000/+39.8405+140.9800/+39.8600+140.9612/+39.8800+140.9742/+39.8867+140.9800/ 北東 5 岩手県八幡平市 0321400 岩手県滝沢市 0321600 2026-04-10T15:00:00+09:00 2026-04-10T18:00:00+09:00 降灰 70 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北東 60 岩手県盛岡市 0320100 岩手県久慈市 0320700 岩手県二戸市 0321300 岩手県八幡平市 0321400 岩手県滝沢市 0321600 岩手県雫石町 0330100 岩手県葛巻町 0330200 岩手県岩手町 0330300 岩手県軽米町 0350100 岩手県九戸村 0350600 岩手県一戸町 0352400 小さな噴石の落下 75 1 +39.8886+141.0000/+39.8913+141.0200/+39.8800+141.0370/+39.8600+141.0299/+39.8502+141.0200/+39.8428+141.0000/+39.8400+140.9932/+39.8268+140.9800/+39.8400+140.9668/+39.8600+140.9612/+39.8797+140.9800/+39.8800+140.9862/+39.8886+141.0000/ 北東 5 岩手県八幡平市 0321400 岩手県滝沢市 0321600 岩手県雫石町 0330100 2026-04-10T18:00:00+09:00 2026-04-10T21:00:00+09:00 降灰 70 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北東 90 岩手県久慈市 0320700 岩手県八幡平市 0321400 岩手県滝沢市 0321600 岩手県雫石町 0330100 岩手県葛巻町 0330200 岩手県岩手町 0330300 岩手県九戸村 0350600 岩手県洋野町 0350700 岩手県一戸町 0352400 小さな噴石の落下 75 1 +39.8886+141.0200/+39.8841+141.0400/+39.8800+141.0463/+39.8773+141.0400/+39.8600+141.0328/+39.8472+141.0200/+39.8422+141.0000/+39.8412+140.9800/+39.8600+140.9612/+39.8788+140.9800/+39.8790+141.0000/+39.8800+141.0077/+39.8886+141.0200/ 北東 7 岩手県八幡平市 0321400 岩手県滝沢市 0321600 2026-04-11T00:00:00+09:00 2026-04-11T03:00:00+09:00 降灰 70 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北東 80 岩手県盛岡市 0320100 岩手県久慈市 0320700 岩手県八幡平市 0321400 岩手県滝沢市 0321600 岩手県雫石町 0330100 岩手県葛巻町 0330200 岩手県岩手町 0330300 岩手県九戸村 0350600 岩手県一戸町 0352400 小さな噴石の落下 75 1 +39.8899+141.0200/+39.8912+141.0400/+39.8844+141.0600/+39.8800+141.0683/+39.8774+141.0600/+39.8600+141.0493/+39.8507+141.0400/+39.8451+141.0200/+39.8414+141.0000/+39.8412+140.9800/+39.8600+140.9612/+39.8788+140.9800/+39.8792+141.0000/+39.8800+141.0075/+39.8899+141.0200/ 北東 8 岩手県八幡平市 0321400 岩手県滝沢市 0321600 　現在、岩手山は噴火警戒レベル２（火口周辺規制）です。岩手山で噴火が発生した場合には、１０日０９時から１２時までは火口から北方向、１０日２１時から２４時までは火口から北東方向に降灰が予想されます。 　１０日９時から１１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 　１０日０９時から１２時まで　北　　　　　　　５０ｋｍ　　４ｋｍ　　　　　 　１０日１２時から１５時まで　北　　　　　　　５０ｋｍ　　５ｋｍ　　　　　 　１０日１５時から１８時まで　北東　　　　　　６０ｋｍ　　５ｋｍ　　　　　 　１０日１８時から２１時まで　北東　　　　　　７０ｋｍ　　５ｋｍ　　　　　 　１０日２１時から２４時まで　北東　　　　　　９０ｋｍ　　７ｋｍ　　　　　 　１１日００時から０３時まで　北東　　　　　　８０ｋｍ　　８ｋｍ　　　　　 　 　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。 　青森県　：田子町、三戸町 　岩手県　：二戸市、八幡平市、滝沢市、雫石町、岩手町、盛岡市、一戸町、久慈市、葛巻町、軽米町、 　　　　　九戸村、洋野町 　 　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。