2026-08-24T14:00:00Z 通常 気象庁本庁 気象庁 2026-08-24T23:00:00+09:00 2026-08-25T00:00:00+09:00 2026-08-25T18:00:00+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、２５日０９時から１２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 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 岩手県岩泉町 0348300 岩手県野田村 0350300 岩手県九戸村 0350600 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 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 岩手県岩泉町 0348300 岩手県野田村 0350300 岩手県九戸村 0350600 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 2026-08-25T00:00:00+09:00 2026-08-25T03:00:00+09:00 降灰 70 +39.9474+141.2000/+39.9464+141.2200/+39.9462+141.2400/+39.9475+141.2600/+39.9473+141.2800/+39.9400+141.2965/+39.9395+141.3000/+39.9400+141.3026/+39.9473+141.3200/+39.9467+141.3400/+39.9439+141.3600/+39.9400+141.3721/+39.9389+141.3800/+39.9378+141.4000/+39.9366+141.4200/+39.9400+141.4356/+39.9419+141.4400/+39.9400+141.4478/+39.9360+141.4600/+39.9247+141.4800/+39.9200+141.4906/+39.9182+141.5000/+39.9132+141.5200/+39.9086+141.5400/+39.9066+141.5600/+39.9046+141.5800/+39.9024+141.6000/+39.9028+141.6200/+39.9031+141.6400/+39.9004+141.6600/+39.9000+141.6612/+39.8847+141.6800/+39.8800+141.6937/+39.8785+141.7000/+39.8705+141.7200/+39.8645+141.7400/+39.8616+141.7600/+39.8609+141.7800/+39.8602+141.8000/+39.8600+141.8016/+39.8532+141.8000/+39.8500+141.7800/+39.8492+141.7600/+39.8423+141.7400/+39.8400+141.7352/+39.8389+141.7200/+39.8376+141.7000/+39.8394+141.6800/+39.8400+141.6732/+39.8431+141.6600/+39.8490+141.6400/+39.8569+141.6200/+39.8600+141.6119/+39.8800+141.6003/+39.8803+141.6000/+39.8800+141.5997/+39.8600+141.5809/+39.8598+141.5800/+39.8553+141.5600/+39.8490+141.5400/+39.8450+141.5200/+39.8434+141.5000/+39.8424+141.4800/+39.8430+141.4600/+39.8450+141.4400/+39.8454+141.4200/+39.8462+141.4000/+39.8478+141.3800/+39.8478+141.3600/+39.8473+141.3400/+39.8600+141.3210/+39.8602+141.3200/+39.8600+141.3043/+39.8596+141.3000/+39.8525+141.2800/+39.8529+141.2600/+39.8529+141.2400/+39.8519+141.2200/+39.8528+141.2000/+39.8483+141.1800/+39.8443+141.1600/+39.8416+141.1400/+39.8405+141.1200/+39.8401+141.1000/+39.8400+141.0992/+39.8222+141.0800/+39.8205+141.0600/+39.8202+141.0400/+39.8201+141.0200/+39.8201+141.0000/+39.8201+140.9800/+39.8384+140.9600/+39.8400+140.9584/+39.8600+140.9552/+39.8648+140.9600/+39.8799+140.9800/+39.8800+141.0000/+39.8800+141.0200/+39.8800+141.0295/+39.8900+141.0400/+39.8989+141.0600/+39.8997+141.0800/+39.9000+141.0825/+39.9157+141.1000/+39.9195+141.1200/+39.9200+141.1242/+39.9312+141.1400/+39.9369+141.1600/+39.9396+141.1800/+39.9400+141.1831/+39.9474+141.2000/ 東 70 岩手県盛岡市 0320100 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 岩手県岩泉町 0348300 小さな噴石の落下 75 1 +39.8788+140.9800/+39.8759+141.0000/+39.8663+141.0200/+39.8600+141.0308/+39.8400+141.0315/+39.8341+141.0200/+39.8246+141.0000/+39.8213+140.9800/+39.8400+140.9612/+39.8600+140.9612/+39.8788+140.9800/ 東 4 岩手県八幡平市 0321400 岩手県滝沢市 0321600 岩手県雫石町 0330100 2026-08-25T03:00:00+09:00 2026-08-25T06:00:00+09:00 降灰 70 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東 70 岩手県盛岡市 0320100 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 岩手県岩泉町 0348300 小さな噴石の落下 75 1 +39.8788+140.9800/+39.8770+141.0000/+39.8667+141.0200/+39.8600+141.0322/+39.8400+141.0331/+39.8323+141.0200/+39.8239+141.0000/+39.8218+140.9800/+39.8400+140.9618/+39.8600+140.9612/+39.8788+140.9800/ 東 4 岩手県八幡平市 0321400 岩手県滝沢市 0321600 岩手県雫石町 0330100 2026-08-25T06:00:00+09:00 2026-08-25T09:00:00+09:00 降灰 70 +39.9808+141.1800/+39.9834+141.2000/+39.9899+141.2200/+39.9902+141.2400/+39.9855+141.2600/+39.9800+141.2742/+39.9791+141.2800/+39.9800+141.2840/+39.9867+141.3000/+39.9830+141.3200/+39.9800+141.3347/+39.9793+141.3400/+39.9772+141.3600/+39.9758+141.3800/+39.9731+141.4000/+39.9763+141.4200/+39.9725+141.4400/+39.9703+141.4600/+39.9676+141.4800/+39.9660+141.5000/+39.9642+141.5200/+39.9631+141.5400/+39.9654+141.5600/+39.9658+141.5800/+39.9661+141.6000/+39.9634+141.6200/+39.9605+141.6400/+39.9600+141.6429/+39.9548+141.6600/+39.9481+141.6800/+39.9413+141.7000/+39.9400+141.7024/+39.9261+141.7200/+39.9200+141.7280/+39.9110+141.7400/+39.9000+141.7546/+39.8947+141.7400/+39.8892+141.7200/+39.8850+141.7000/+39.8851+141.6800/+39.8851+141.6600/+39.8856+141.6400/+39.8867+141.6200/+39.8877+141.6000/+39.8890+141.5800/+39.8904+141.5600/+39.8943+141.5400/+39.8928+141.5200/+39.8891+141.5000/+39.8863+141.4800/+39.8828+141.4600/+39.8805+141.4400/+39.8800+141.4367/+39.8767+141.4200/+39.8763+141.4000/+39.8761+141.3800/+39.8742+141.3600/+39.8733+141.3400/+39.8800+141.3322/+39.8837+141.3200/+39.8825+141.3000/+39.8803+141.2800/+39.8800+141.2740/+39.8764+141.2600/+39.8747+141.2400/+39.8710+141.2200/+39.8690+141.2000/+39.8646+141.1800/+39.8621+141.1600/+39.8607+141.1400/+39.8600+141.1333/+39.8491+141.1200/+39.8427+141.1000/+39.8407+141.0800/+39.8401+141.0600/+39.8400+141.0570/+39.8249+141.0400/+39.8205+141.0200/+39.8201+141.0000/+39.8201+140.9800/+39.8271+140.9600/+39.8400+140.9471/+39.8600+140.9448/+39.8752+140.9600/+39.8799+140.9800/+39.8800+140.9808/+39.8991+141.0000/+39.8998+141.0200/+39.9000+141.0245/+39.9147+141.0400/+39.9194+141.0600/+39.9200+141.0628/+39.9358+141.0800/+39.9400+141.0881/+39.9516+141.1000/+39.9597+141.1200/+39.9600+141.1211/+39.9722+141.1400/+39.9747+141.1600/+39.9800+141.1780/+39.9808+141.1800/ 東 70 岩手県盛岡市 0320100 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 岩手県岩泉町 0348300 小さな噴石の落下 75 1 +39.8788+140.9800/+39.8774+141.0000/+39.8681+141.0200/+39.8600+141.0352/+39.8524+141.0200/+39.8400+141.0158/+39.8242+141.0000/+39.8400+140.9842/+39.8412+140.9800/+39.8600+140.9612/+39.8788+140.9800/ 東 4 岩手県八幡平市 0321400 岩手県滝沢市 0321600 岩手県雫石町 0330100 2026-08-25T09:00:00+09:00 2026-08-25T12:00:00+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 岩手県岩泉町 0348300 岩手県一戸町 0352400 小さな噴石の落下 75 1 +39.8788+140.9800/+39.8774+141.0000/+39.8740+141.0200/+39.8622+141.0400/+39.8600+141.0420/+39.8590+141.0400/+39.8487+141.0200/+39.8427+141.0000/+39.8411+140.9800/+39.8600+140.9612/+39.8788+140.9800/ 東 6 岩手県八幡平市 0321400 岩手県滝沢市 0321600 2026-08-25T12:00:00+09:00 2026-08-25T15:00:00+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 岩手県岩泉町 0348300 岩手県野田村 0350300 岩手県九戸村 0350600 岩手県一戸町 0352400 小さな噴石の落下 75 1 +39.8788+140.9800/+39.8781+141.0000/+39.8764+141.0200/+39.8723+141.0400/+39.8600+141.0516/+39.8536+141.0400/+39.8466+141.0200/+39.8419+141.0000/+39.8405+140.9800/+39.8600+140.9612/+39.8788+140.9800/ 東 6 岩手県八幡平市 0321400 岩手県滝沢市 0321600 2026-08-25T15:00:00+09:00 2026-08-25T18:00:00+09:00 降灰 70 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東 60 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 岩手県岩泉町 0348300 小さな噴石の落下 75 1 +39.8788+140.9800/+39.8782+141.0000/+39.8748+141.0200/+39.8682+141.0400/+39.8600+141.0540/+39.8400+141.0511/+39.8349+141.0400/+39.8265+141.0200/+39.8229+141.0000/+39.8214+140.9800/+39.8400+140.9614/+39.8600+140.9612/+39.8788+140.9800/ 東 6 岩手県八幡平市 0321400 岩手県滝沢市 0321600 岩手県雫石町 0330100 　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、２５日０９時から１２時までは火口から北東方向に降灰が予想されます。 　２５日０時から２５日１８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００時から０３時まで　東　　　　　　　７０ｋｍ　　４ｋｍ　　　　　 　２５日０３時から０６時まで　東　　　　　　　７０ｋｍ　　４ｋｍ　　　　　 　２５日０６時から０９時まで　東　　　　　　　７０ｋｍ　　４ｋｍ　　　　　 　２５日０９時から１２時まで　北東　　　　　　６０ｋｍ　　６ｋｍ　　　　　 　２５日１２時から１５時まで　北東　　　　　　８０ｋｍ　　６ｋｍ　　　　　 　２５日１５時から１８時まで　東　　　　　　　６０ｋｍ　　６ｋｍ　　　　　 　 　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。 　岩手県　：盛岡市、八幡平市、滝沢市、雫石町、葛巻町、岩手町、岩泉町、久慈市、一戸町、野田村、 　　　　　九戸村 　 　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。