2026-07-28T11:00:00Z 通常 気象庁本庁 気象庁 2026-07-28T20:00:00+09:00 2026-07-28T21:00:00+09:00 2026-07-29T15:00:00+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、２８日２１時から２４時までは火口から北方向、２９日０９時から１２時までは火口から南西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 岩手県花巻市 0320500 岩手県八幡平市 0321400 岩手県滝沢市 0321600 岩手県雫石町 0330100 岩手県西和賀町 0336600 秋田県大館市 0520400 秋田県鹿角市 0520900 小さな噴石の落下 75 岩手県八幡平市 0321400 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 岩手県花巻市 0320500 岩手県八幡平市 0321400 岩手県滝沢市 0321600 岩手県雫石町 0330100 岩手県西和賀町 0336600 秋田県大館市 0520400 秋田県鹿角市 0520900 小さな噴石の落下 75 岩手県八幡平市 0321400 岩手県雫石町 0330100 2026-07-28T21:00:00+09:00 2026-07-29T00:00:00+09:00 降灰 70 +40.2666+140.6800/+40.2722+140.7000/+40.2626+140.7200/+40.2600+140.7249/+40.2544+140.7400/+40.2400+140.7584/+40.2389+140.7600/+40.2239+140.7800/+40.2200+140.7842/+40.2011+140.8000/+40.2000+140.8013/+40.1873+140.8200/+40.1800+140.8330/+40.1780+140.8400/+40.1639+140.8600/+40.1600+140.8641/+40.1407+140.8800/+40.1400+140.8804/+40.1200+140.8963/+40.1093+140.9000/+40.1000+140.9049/+40.0800+140.9183/+40.0782+140.9200/+40.0600+140.9362/+40.0545+140.9400/+40.0400+140.9531/+40.0200+140.9586/+40.0127+140.9600/+40.0000+140.9722/+39.9800+140.9791/+39.9674+140.9800/+39.9600+140.9855/+39.9400+140.9953/+39.9200+140.9985/+39.9000+140.9998/+39.8800+140.9999/+39.8600+141.0000/+39.8400+140.9996/+39.8204+140.9800/+39.8205+140.9600/+39.8400+140.9405/+39.8600+140.9400/+39.8639+140.9400/+39.8800+140.9240/+39.9000+140.9207/+39.9200+140.9202/+39.9253+140.9200/+39.9400+140.9075/+39.9600+140.9024/+39.9800+140.9007/+39.9985+140.9000/+40.0000+140.8991/+40.0200+140.8814/+40.0233+140.8800/+40.0400+140.8654/+40.0468+140.8600/+40.0600+140.8452/+40.0647+140.8400/+40.0800+140.8239/+40.0846+140.8200/+40.0993+140.8000/+40.1000+140.7992/+40.1200+140.7868/+40.1316+140.7800/+40.1400+140.7705/+40.1476+140.7600/+40.1600+140.7412/+40.1612+140.7400/+40.1789+140.7200/+40.1800+140.7181/+40.1956+140.7000/+40.2000+140.6965/+40.2200+140.6826/+40.2226+140.6800/+40.2400+140.6662/+40.2600+140.6701/+40.2666+140.6800/ 北 50 岩手県八幡平市 0321400 岩手県雫石町 0330100 秋田県大館市 0520400 秋田県鹿角市 0520900 小さな噴石の落下 75 1 +39.8818+140.9600/+39.8800+140.9668/+39.8798+140.9800/+39.8600+140.9988/+39.8410+140.9800/+39.8439+140.9600/+39.8600+140.9439/+39.8800+140.9585/+39.8818+140.9600/ 北 3 岩手県八幡平市 0321400 岩手県雫石町 0330100 2026-07-29T00:00:00+09:00 2026-07-29T03:00:00+09:00 降灰 70 +40.1852+140.7000/+40.1879+140.7200/+40.1806+140.7400/+40.1800+140.7419/+40.1733+140.7600/+40.1600+140.7721/+40.1540+140.7800/+40.1415+140.8000/+40.1400+140.8019/+40.1316+140.8200/+40.1200+140.8360/+40.1174+140.8400/+40.1000+140.8536/+40.0952+140.8600/+40.0800+140.8781/+40.0790+140.8800/+40.0676+140.9000/+40.0600+140.9074/+40.0493+140.9200/+40.0400+140.9290/+40.0200+140.9390/+40.0186+140.9400/+40.0000+140.9560/+39.9884+140.9600/+39.9800+140.9671/+39.9600+140.9772/+39.9400+140.9795/+39.9323+140.9800/+39.9200+140.9898/+39.9000+140.9991/+39.8800+140.9999/+39.8600+141.0000/+39.8400+140.9998/+39.8202+140.9800/+39.8203+140.9600/+39.8400+140.9403/+39.8600+140.9400/+39.8620+140.9400/+39.8800+140.9221/+39.9000+140.9203/+39.9035+140.9200/+39.9200+140.9041/+39.9400+140.9008/+39.9457+140.9000/+39.9600+140.8869/+39.9800+140.8815/+39.9850+140.8800/+40.0000+140.8679/+40.0162+140.8600/+40.0200+140.8557/+40.0345+140.8400/+40.0400+140.8342/+40.0466+140.8200/+40.0600+140.8057/+40.0664+140.8000/+40.0800+140.7802/+40.0803+140.7800/+40.0912+140.7600/+40.1000+140.7441/+40.1029+140.7400/+40.1196+140.7200/+40.1200+140.7194/+40.1362+140.7000/+40.1400+140.6960/+40.1600+140.6810/+40.1800+140.6890/+40.1852+140.7000/ 北西 40 岩手県八幡平市 0321400 岩手県雫石町 0330100 秋田県大館市 0520400 秋田県鹿角市 0520900 小さな噴石の落下 75 1 +39.8773+140.9600/+39.8792+140.9800/+39.8600+140.9988/+39.8411+140.9800/+39.8443+140.9600/+39.8600+140.9443/+39.8773+140.9600/ 北 1 岩手県八幡平市 0321400 岩手県雫石町 0330100 2026-07-29T03:00:00+09:00 2026-07-29T06:00:00+09:00 降灰 70 +39.9385+140.9400/+39.9390+140.9600/+39.9304+140.9800/+39.9200+140.9897/+39.9000+140.9990/+39.8800+141.0000/+39.8792+141.0000/+39.8600+141.0046/+39.8400+141.0113/+39.8200+141.0127/+39.8044+141.0000/+39.8000+140.9997/+39.7800+140.9989/+39.7600+140.9985/+39.7400+140.9932/+39.7260+140.9800/+39.7221+140.9600/+39.7226+140.9400/+39.7327+140.9200/+39.7400+140.9132/+39.7600+140.9080/+39.7800+140.9138/+39.7934+140.9200/+39.8000+140.9207/+39.8200+140.9204/+39.8400+140.9215/+39.8600+140.9215/+39.8798+140.9200/+39.8800+140.9199/+39.9000+140.9153/+39.9078+140.9200/+39.9200+140.9230/+39.9385+140.9400/ 南 10 岩手県八幡平市 0321400 岩手県滝沢市 0321600 岩手県雫石町 0330100 小さな噴石の落下 75 1 +39.8739+140.9600/+39.8789+140.9800/+39.8600+140.9989/+39.8400+140.9989/+39.8210+140.9800/+39.8217+140.9600/+39.8400+140.9420/+39.8600+140.9465/+39.8739+140.9600/ 南西 2 岩手県八幡平市 0321400 岩手県雫石町 0330100 2026-07-29T06:00:00+09:00 2026-07-29T09:00:00+09:00 降灰 70 +39.8799+140.9600/+39.8799+140.9800/+39.8600+140.9999/+39.8400+141.0000/+39.8200+140.9999/+39.8000+140.9994/+39.7800+140.9982/+39.7600+140.9954/+39.7400+140.9895/+39.7264+140.9800/+39.7200+140.9782/+39.7000+140.9725/+39.6800+140.9676/+39.6645+140.9600/+39.6600+140.9586/+39.6400+140.9504/+39.6218+140.9400/+39.6200+140.9395/+39.6038+140.9400/+39.6000+140.9403/+39.5800+140.9427/+39.5705+140.9400/+39.5600+140.9356/+39.5403+140.9200/+39.5400+140.9197/+39.5200+140.9089/+39.5077+140.9000/+39.5158+140.8800/+39.5200+140.8778/+39.5400+140.8719/+39.5600+140.8619/+39.5693+140.8600/+39.5800+140.8584/+39.5932+140.8600/+39.6000+140.8606/+39.6200+140.8640/+39.6400+140.8639/+39.6600+140.8640/+39.6800+140.8639/+39.7000+140.8626/+39.7200+140.8657/+39.7400+140.8699/+39.7529+140.8800/+39.7600+140.8840/+39.7773+140.9000/+39.7800+140.9009/+39.8000+140.9139/+39.8060+140.9200/+39.8200+140.9213/+39.8393+140.9400/+39.8400+140.9400/+39.8600+140.9401/+39.8799+140.9600/ 南 40 岩手県花巻市 0320500 岩手県八幡平市 0321400 岩手県雫石町 0330100 岩手県西和賀町 0336600 小さな噴石の落下 75 1 +39.8758+140.9600/+39.8788+140.9800/+39.8600+140.9988/+39.8400+140.9988/+39.8209+140.9800/+39.8214+140.9600/+39.8400+140.9418/+39.8600+140.9442/+39.8758+140.9600/ 南西 2 岩手県八幡平市 0321400 岩手県雫石町 0330100 2026-07-29T09:00:00+09:00 2026-07-29T12:00:00+09:00 降灰 70 +39.8715+140.9000/+39.8776+140.9200/+39.8797+140.9400/+39.8800+140.9600/+39.8800+140.9800/+39.8795+141.0000/+39.8798+141.0200/+39.8762+141.0400/+39.8714+141.0600/+39.8600+141.0788/+39.8588+141.0800/+39.8400+141.0989/+39.8285+141.0800/+39.8238+141.0600/+39.8226+141.0400/+39.8234+141.0200/+39.8243+141.0000/+39.8200+140.9993/+39.8000+140.9873/+39.7916+140.9800/+39.7800+140.9721/+39.7674+140.9600/+39.7600+140.9473/+39.7531+140.9400/+39.7457+140.9200/+39.7400+140.9004/+39.7398+140.9000/+39.7400+140.8997/+39.7477+140.8800/+39.7600+140.8666/+39.7672+140.8600/+39.7800+140.8499/+39.8000+140.8484/+39.8200+140.8541/+39.8352+140.8600/+39.8400+140.8610/+39.8591+140.8800/+39.8600+140.8826/+39.8715+140.9000/ 南西 10 岩手県八幡平市 0321400 岩手県滝沢市 0321600 岩手県雫石町 0330100 小さな噴石の落下 75 1 +39.8743+140.9600/+39.8789+140.9800/+39.8600+140.9989/+39.8400+140.9988/+39.8211+140.9800/+39.8239+140.9600/+39.8400+140.9438/+39.8600+140.9455/+39.8743+140.9600/ 南西 2 岩手県八幡平市 0321400 岩手県雫石町 0330100 2026-07-29T12:00:00+09:00 2026-07-29T15:00:00+09:00 降灰 70 +39.9044+141.0000/+39.9062+141.0200/+39.9079+141.0400/+39.9000+141.0556/+39.8986+141.0600/+39.8800+141.0773/+39.8774+141.0800/+39.8600+141.0993/+39.8578+141.1000/+39.8400+141.1117/+39.8336+141.1200/+39.8276+141.1400/+39.8200+141.1506/+39.8157+141.1600/+39.8064+141.1800/+39.8023+141.2000/+39.8000+141.2034/+39.7877+141.2200/+39.7800+141.2377/+39.7771+141.2400/+39.7620+141.2600/+39.7600+141.2625/+39.7423+141.2800/+39.7400+141.2829/+39.7371+141.2800/+39.7345+141.2600/+39.7352+141.2400/+39.7384+141.2200/+39.7400+141.2118/+39.7413+141.2000/+39.7483+141.1800/+39.7558+141.1600/+39.7599+141.1400/+39.7600+141.1398/+39.7653+141.1200/+39.7709+141.1000/+39.7800+141.0837/+39.7808+141.0800/+39.7852+141.0600/+39.7980+141.0400/+39.8000+141.0377/+39.8017+141.0200/+39.8055+141.0000/+39.8200+140.9812/+39.8200+140.9800/+39.8200+140.9600/+39.8219+140.9400/+39.8371+140.9200/+39.8400+140.9167/+39.8600+140.9119/+39.8721+140.9200/+39.8800+140.9223/+39.8965+140.9400/+39.8995+140.9600/+39.8998+140.9800/+39.9000+140.9846/+39.9044+141.0000/ 南東 30 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 小さな噴石の落下 75 1 +39.8678+140.9600/+39.8789+140.9800/+39.8600+140.9989/+39.8400+140.9994/+39.8211+140.9800/+39.8298+140.9600/+39.8400+140.9497/+39.8600+140.9521/+39.8678+140.9600/ 南西 2 岩手県八幡平市 0321400 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、２８日２１時から２４時までは火口から北方向、２９日０９時から１２時までは火口から南西方向に降灰が予想されます。 　２８日２１時から２９日１５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 　２８日２１時から２４時まで　北　　　　　　　５０ｋｍ　　３ｋｍ　　　　　 　２９日００時から０３時まで　北西　　　　　　４０ｋｍ　　１ｋｍ　　　　　 　２９日０３時から０６時まで　南　　　　　　　１０ｋｍ　　２ｋｍ　　　　　 　２９日０６時から０９時まで　南　　　　　　　４０ｋｍ　　２ｋｍ　　　　　 　２９日０９時から１２時まで　南西　　　　　　１０ｋｍ　　２ｋｍ　　　　　 　２９日１２時から１５時まで　南東　　　　　　３０ｋｍ　　２ｋｍ　　　　　 　 　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　：八幡平市、雫石町、滝沢市、花巻市、西和賀町、盛岡市 　秋田県　：大館市、鹿角市 　 　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。