2026-06-20T17:00:00Z 通常 気象庁本庁 気象庁 2026-06-21T02:00:00+09:00 2026-06-21T03:00:00+09:00 2026-06-21T21:00:00+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、２１日０９時から１２時までは火口から東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 鹿児島県西之表市 4621300 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 鹿児島県西之表市 4621300 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 2026-06-21T03:00:00+09:00 2026-06-21T06:00:00+09:00 降灰 70 +30.9204+130.8000/+30.9343+130.8200/+30.9346+130.8400/+30.9348+130.8600/+30.9347+130.8800/+30.9347+130.9000/+30.9342+130.9200/+30.9336+130.9400/+30.9332+130.9600/+30.9330+130.9800/+30.9327+131.0000/+30.9318+131.0200/+30.9265+131.0400/+30.9200+131.0447/+30.9000+131.0486/+30.8965+131.0400/+30.8886+131.0200/+30.8828+131.0000/+30.8800+130.9893/+30.8778+130.9800/+30.8737+130.9600/+30.8700+130.9400/+30.8664+130.9200/+30.8633+130.9000/+30.8600+130.8861/+30.8578+130.8800/+30.8511+130.8600/+30.8445+130.8400/+30.8469+130.8200/+30.8453+130.8000/+30.8426+130.7800/+30.8401+130.7600/+30.8400+130.7597/+30.8282+130.7400/+30.8345+130.7200/+30.8269+130.7000/+30.8205+130.6800/+30.8200+130.6779/+30.8141+130.6600/+30.8101+130.6400/+30.8070+130.6200/+30.8200+130.6060/+30.8214+130.6000/+30.8203+130.5800/+30.8200+130.5732/+30.8135+130.5600/+30.8059+130.5400/+30.8025+130.5200/+30.8011+130.5000/+30.8005+130.4800/+30.8001+130.4600/+30.8000+130.4582/+30.7846+130.4400/+30.7810+130.4200/+30.7803+130.4000/+30.7801+130.3800/+30.7800+130.3600/+30.7800+130.3596/+30.7608+130.3400/+30.7602+130.3200/+30.7615+130.3000/+30.7800+130.2815/+30.8000+130.2806/+30.8194+130.3000/+30.8200+130.3200/+30.8200+130.3204/+30.8393+130.3400/+30.8398+130.3600/+30.8399+130.3800/+30.8400+130.4000/+30.8400+130.4012/+30.8570+130.4200/+30.8591+130.4400/+30.8594+130.4600/+30.8597+130.4800/+30.8600+130.4893/+30.8685+130.5000/+30.8759+130.5200/+30.8779+130.5400/+30.8788+130.5600/+30.8796+130.5800/+30.8800+130.5892/+30.8857+130.6000/+30.8974+130.6200/+30.8979+130.6400/+30.8990+130.6600/+30.9000+130.6741/+30.9032+130.6800/+30.9086+130.7000/+30.9153+130.7200/+30.9160+130.7400/+30.9168+130.7600/+30.9183+130.7800/+30.9200+130.7990/+30.9204+130.8000/ 東 70 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8188+130.3000/+30.8188+130.3200/+30.8115+130.3400/+30.8000+130.3564/+30.7885+130.3400/+30.7812+130.3200/+30.7812+130.3000/+30.8000+130.2812/+30.8188+130.3000/ 北東 3 鹿児島県三島村 4630300 2026-06-21T06:00:00+09:00 2026-06-21T09:00:00+09:00 降灰 70 +30.9264+130.8200/+30.9280+130.8400/+30.9288+130.8600/+30.9288+130.8800/+30.9289+130.9000/+30.9274+130.9200/+30.9256+130.9400/+30.9240+130.9600/+30.9229+130.9800/+30.9214+131.0000/+30.9204+131.0200/+30.9200+131.0259/+30.9189+131.0400/+30.9134+131.0600/+30.9000+131.0778/+30.8922+131.0600/+30.8870+131.0400/+30.8836+131.0200/+30.8806+131.0000/+30.8800+130.9967/+30.8773+130.9800/+30.8744+130.9600/+30.8704+130.9400/+30.8653+130.9200/+30.8604+130.9000/+30.8600+130.8988/+30.8520+130.8800/+30.8438+130.8600/+30.8400+130.8499/+30.8368+130.8400/+30.8400+130.8363/+30.8453+130.8200/+30.8436+130.8000/+30.8400+130.7876/+30.8347+130.7800/+30.8256+130.7600/+30.8200+130.7441/+30.8189+130.7400/+30.8200+130.7369/+30.8246+130.7200/+30.8209+130.7000/+30.8200+130.6967/+30.8140+130.6800/+30.8099+130.6600/+30.8074+130.6400/+30.8053+130.6200/+30.8200+130.6036/+30.8207+130.6000/+30.8200+130.5851/+30.8166+130.5800/+30.8061+130.5600/+30.8026+130.5400/+30.8010+130.5200/+30.8005+130.5000/+30.8003+130.4800/+30.8000+130.4694/+30.7932+130.4600/+30.7825+130.4400/+30.7806+130.4200/+30.7802+130.4000/+30.7801+130.3800/+30.7800+130.3600/+30.7800+130.3599/+30.7607+130.3400/+30.7602+130.3200/+30.7612+130.3000/+30.7800+130.2812/+30.8000+130.2805/+30.8195+130.3000/+30.8200+130.3200/+30.8200+130.3210/+30.8389+130.3400/+30.8398+130.3600/+30.8399+130.3800/+30.8399+130.4000/+30.8400+130.4178/+30.8422+130.4200/+30.8574+130.4400/+30.8590+130.4600/+30.8593+130.4800/+30.8595+130.5000/+30.8599+130.5200/+30.8600+130.5213/+30.8730+130.5400/+30.8764+130.5600/+30.8777+130.5800/+30.8784+130.6000/+30.8800+130.6048/+30.8949+130.6200/+30.8957+130.6400/+30.8962+130.6600/+30.8968+130.6800/+30.8975+130.7000/+30.9000+130.7058/+30.9118+130.7200/+30.9118+130.7400/+30.9118+130.7600/+30.9117+130.7800/+30.9115+130.8000/+30.9200+130.8143/+30.9264+130.8200/ 東 70 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8188+130.3000/+30.8188+130.3200/+30.8087+130.3400/+30.8000+130.3534/+30.7913+130.3400/+30.7812+130.3200/+30.7812+130.3000/+30.8000+130.2812/+30.8188+130.3000/ 北東 3 鹿児島県三島村 4630300 2026-06-21T09:00:00+09:00 2026-06-21T12:00:00+09:00 降灰 70 +30.8801+130.7400/+30.8831+130.7600/+30.8830+130.7800/+30.8828+130.8000/+30.8824+130.8200/+30.8808+130.8400/+30.8800+130.8500/+30.8792+130.8600/+30.8776+130.8800/+30.8756+130.9000/+30.8741+130.9200/+30.8724+130.9400/+30.8692+130.9600/+30.8641+130.9800/+30.8600+130.9942/+30.8400+130.9918/+30.8364+130.9800/+30.8305+130.9600/+30.8261+130.9400/+30.8231+130.9200/+30.8202+130.9000/+30.8200+130.8996/+30.8087+130.8800/+30.8000+130.8672/+30.7966+130.8600/+30.7899+130.8400/+30.7866+130.8200/+30.7838+130.8000/+30.7803+130.7800/+30.7800+130.7780/+30.7778+130.7600/+30.7743+130.7400/+30.7725+130.7200/+30.7681+130.7000/+30.7682+130.6800/+30.7656+130.6600/+30.7618+130.6400/+30.7600+130.6303/+30.7574+130.6200/+30.7600+130.6137/+30.7620+130.6000/+30.7621+130.5800/+30.7608+130.5600/+30.7605+130.5400/+30.7600+130.5332/+30.7566+130.5200/+30.7576+130.5000/+30.7544+130.4800/+30.7536+130.4600/+30.7511+130.4400/+30.7536+130.4200/+30.7554+130.4000/+30.7600+130.3837/+30.7600+130.3800/+30.7601+130.3600/+30.7601+130.3400/+30.7601+130.3200/+30.7607+130.3000/+30.7800+130.2807/+30.8000+130.2803/+30.8196+130.3000/+30.8200+130.3200/+30.8200+130.3297/+30.8303+130.3400/+30.8387+130.3600/+30.8393+130.3800/+30.8394+130.4000/+30.8395+130.4200/+30.8395+130.4400/+30.8398+130.4600/+30.8400+130.4643/+30.8500+130.4800/+30.8542+130.5000/+30.8565+130.5200/+30.8573+130.5400/+30.8586+130.5600/+30.8596+130.5800/+30.8600+130.5906/+30.8623+130.6000/+30.8752+130.6200/+30.8764+130.6400/+30.8776+130.6600/+30.8782+130.6800/+30.8779+130.7000/+30.8788+130.7200/+30.8800+130.7397/+30.8801+130.7400/ 東 60 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8188+130.3000/+30.8188+130.3200/+30.8087+130.3400/+30.8000+130.3532/+30.7869+130.3400/+30.7800+130.3257/+30.7772+130.3200/+30.7800+130.3172/+30.7812+130.3000/+30.8000+130.2812/+30.8188+130.3000/ 東 3 鹿児島県三島村 4630300 2026-06-21T12:00:00+09:00 2026-06-21T15:00:00+09:00 降灰 70 +30.8197+130.3000/+30.8200+130.3200/+30.8199+130.3400/+30.8193+130.3600/+30.8179+130.3800/+30.8148+130.4000/+30.8091+130.4200/+30.8000+130.4327/+30.7996+130.4400/+30.7987+130.4600/+30.7979+130.4800/+30.7967+130.5000/+30.7950+130.5200/+30.7932+130.5400/+30.7911+130.5600/+30.7856+130.5800/+30.7800+130.5971/+30.7797+130.6000/+30.7800+130.6054/+30.7845+130.6200/+30.7800+130.6348/+30.7793+130.6400/+30.7776+130.6600/+30.7758+130.6800/+30.7734+130.7000/+30.7701+130.7200/+30.7733+130.7400/+30.7713+130.7600/+30.7685+130.7800/+30.7653+130.8000/+30.7600+130.8189/+30.7590+130.8200/+30.7400+130.8372/+30.7200+130.8345/+30.7043+130.8200/+30.7000+130.8076/+30.6977+130.8000/+30.6952+130.7800/+30.6927+130.7600/+30.6894+130.7400/+30.6869+130.7200/+30.6858+130.7000/+30.6830+130.6800/+30.6823+130.6600/+30.6830+130.6400/+30.6827+130.6200/+30.6822+130.6000/+30.6857+130.5800/+30.6858+130.5600/+30.6865+130.5400/+30.6863+130.5200/+30.6902+130.5000/+30.6913+130.4800/+30.7000+130.4631/+30.7005+130.4600/+30.7030+130.4400/+30.7070+130.4200/+30.7200+130.4028/+30.7204+130.4000/+30.7221+130.3800/+30.7319+130.3600/+30.7400+130.3518/+30.7404+130.3400/+30.7453+130.3200/+30.7600+130.3053/+30.7603+130.3000/+30.7800+130.2803/+30.8000+130.2803/+30.8197+130.3000/ 東 50 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8188+130.3000/+30.8188+130.3200/+30.8094+130.3400/+30.8000+130.3514/+30.7800+130.3417/+30.7787+130.3400/+30.7642+130.3200/+30.7676+130.3000/+30.7800+130.2876/+30.8000+130.2812/+30.8188+130.3000/ 東 4 鹿児島県三島村 4630300 2026-06-21T15:00:00+09:00 2026-06-21T18:00:00+09:00 降灰 70 +30.8197+130.3000/+30.8199+130.3200/+30.8198+130.3400/+30.8169+130.3600/+30.8000+130.3781/+30.7999+130.3800/+30.7994+130.4000/+30.7984+130.4200/+30.7959+130.4400/+30.7897+130.4600/+30.7800+130.4772/+30.7798+130.4800/+30.7785+130.5000/+30.7769+130.5200/+30.7750+130.5400/+30.7718+130.5600/+30.7662+130.5800/+30.7600+130.5969/+30.7596+130.6000/+30.7600+130.6025/+30.7675+130.6200/+30.7639+130.6400/+30.7600+130.6575/+30.7595+130.6600/+30.7550+130.6800/+30.7485+130.7000/+30.7484+130.7200/+30.7447+130.7400/+30.7406+130.7600/+30.7400+130.7662/+30.7385+130.7800/+30.7361+130.8000/+30.7336+130.8200/+30.7207+130.8400/+30.7200+130.8441/+30.7172+130.8600/+30.7143+130.8800/+30.7109+130.9000/+30.7050+130.9200/+30.7000+130.9343/+30.6947+130.9200/+30.6892+130.9000/+30.6859+130.8800/+30.6830+130.8600/+30.6800+130.8400/+30.6800+130.8398/+30.6771+130.8200/+30.6710+130.8000/+30.6708+130.7800/+30.6706+130.7600/+30.6691+130.7400/+30.6679+130.7200/+30.6658+130.7000/+30.6710+130.6800/+30.6718+130.6600/+30.6727+130.6400/+30.6738+130.6200/+30.6754+130.6000/+30.6800+130.5926/+30.6840+130.5800/+30.6857+130.5600/+30.6869+130.5400/+30.6894+130.5200/+30.6936+130.5000/+30.7000+130.4804/+30.7000+130.4800/+30.7016+130.4600/+30.7041+130.4400/+30.7114+130.4200/+30.7200+130.4098/+30.7208+130.4000/+30.7225+130.3800/+30.7363+130.3600/+30.7400+130.3563/+30.7404+130.3400/+30.7456+130.3200/+30.7600+130.3056/+30.7603+130.3000/+30.7800+130.2803/+30.8000+130.2803/+30.8197+130.3000/ 東 60 鹿児島県西之表市 4621300 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8188+130.3000/+30.8188+130.3200/+30.8087+130.3400/+30.8000+130.3487/+30.7800+130.3414/+30.7790+130.3400/+30.7639+130.3200/+30.7693+130.3000/+30.7800+130.2893/+30.8000+130.2812/+30.8188+130.3000/ 東 4 鹿児島県三島村 4630300 2026-06-21T18:00:00+09:00 2026-06-21T21:00:00+09:00 降灰 70 +30.8198+130.3000/+30.8199+130.3200/+30.8195+130.3400/+30.8000+130.3597/+30.7999+130.3600/+30.7994+130.3800/+30.7973+130.4000/+30.7848+130.4200/+30.7800+130.4256/+30.7788+130.4400/+30.7767+130.4600/+30.7717+130.4800/+30.7600+130.4977/+30.7596+130.5000/+30.7568+130.5200/+30.7542+130.5400/+30.7482+130.5600/+30.7400+130.5759/+30.7392+130.5800/+30.7366+130.6000/+30.7397+130.6200/+30.7350+130.6400/+30.7301+130.6600/+30.7217+130.6800/+30.7200+130.6828/+30.7153+130.7000/+30.7105+130.7200/+30.7056+130.7400/+30.7000+130.7570/+30.6988+130.7600/+30.6927+130.7800/+30.6839+130.8000/+30.6800+130.8068/+30.6689+130.8200/+30.6640+130.8400/+30.6600+130.8547/+30.6445+130.8600/+30.6400+130.8619/+30.6395+130.8600/+30.6352+130.8400/+30.6324+130.8200/+30.6301+130.8000/+30.6287+130.7800/+30.6330+130.7600/+30.6329+130.7400/+30.6327+130.7200/+30.6365+130.7000/+30.6386+130.6800/+30.6400+130.6748/+30.6418+130.6600/+30.6444+130.6400/+30.6469+130.6200/+30.6507+130.6000/+30.6573+130.5800/+30.6600+130.5763/+30.6633+130.5600/+30.6663+130.5400/+30.6715+130.5200/+30.6800+130.5004/+30.6801+130.5000/+30.6822+130.4800/+30.6863+130.4600/+30.7000+130.4400/+30.7016+130.4200/+30.7055+130.4000/+30.7200+130.3828/+30.7203+130.3800/+30.7225+130.3600/+30.7400+130.3417/+30.7401+130.3400/+30.7414+130.3200/+30.7600+130.3013/+30.7602+130.3000/+30.7800+130.2802/+30.8000+130.2802/+30.8198+130.3000/ 東 60 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8188+130.3000/+30.8188+130.3200/+30.8079+130.3400/+30.8000+130.3479/+30.7800+130.3458/+30.7748+130.3400/+30.7622+130.3200/+30.7620+130.3000/+30.7800+130.2820/+30.8000+130.2812/+30.8188+130.3000/ 東 4 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、２１日０９時から１２時までは火口から東方向に降灰が予想されます。 　２１日３時から２１日２１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 　２１日０３時から０６時まで　東　　　　　　　７０ｋｍ　　３ｋｍ　　　　　 　２１日０６時から０９時まで　東　　　　　　　７０ｋｍ　　３ｋｍ　　　　　 　２１日０９時から１２時まで　東　　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　２１日１２時から１５時まで　東　　　　　　　５０ｋｍ　　４ｋｍ　　　　　 　２１日１５時から１８時まで　東　　　　　　　６０ｋｍ　　４ｋｍ　　　　　 　２１日１８時から２１時まで　東　　　　　　　６０ｋｍ　　４ｋｍ　　　　　 　 　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、西之表市 　 　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。