2026-04-07T23:00:00Z 通常 気象庁本庁 気象庁 2026-04-08T08:00:00+09:00 2026-04-08T09:00:00+09:00 2026-04-09T03:00:00+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、８日０９時から１２時までは火口から西方向、８日２１時から２４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 薩摩硫黄島 508 降灰 70 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 鹿児島県三島村 4630300 小さな噴石の落下 75 鹿児島県三島村 4630300 2026-04-08T09:00:00+09:00 2026-04-08T12:00:00+09:00 降灰 70 +30.8628+129.7000/+30.8671+129.7200/+30.8702+129.7400/+30.8724+129.7600/+30.8739+129.7800/+30.8692+129.8000/+30.8684+129.8200/+30.8678+129.8400/+30.8672+129.8600/+30.8667+129.8800/+30.8606+129.9000/+30.8600+129.9060/+30.8592+129.9200/+30.8589+129.9400/+30.8582+129.9600/+30.8570+129.9800/+30.8421+130.0000/+30.8400+130.0019/+30.8390+130.0200/+30.8380+130.0400/+30.8378+130.0600/+30.8370+130.0800/+30.8367+130.1000/+30.8363+130.1200/+30.8354+130.1400/+30.8334+130.1600/+30.8292+130.1800/+30.8200+130.1980/+30.8200+130.2000/+30.8199+130.2200/+30.8199+130.2400/+30.8199+130.2600/+30.8200+130.2800/+30.8199+130.3000/+30.8013+130.3200/+30.8000+130.3213/+30.7972+130.3200/+30.7800+130.3199/+30.7602+130.3000/+30.7601+130.2800/+30.7601+130.2600/+30.7601+130.2400/+30.7602+130.2200/+30.7603+130.2000/+30.7604+130.1800/+30.7605+130.1600/+30.7607+130.1400/+30.7608+130.1200/+30.7610+130.1000/+30.7612+130.0800/+30.7616+130.0600/+30.7610+130.0400/+30.7615+130.0200/+30.7636+130.0000/+30.7600+129.9884/+30.7539+129.9800/+30.7570+129.9600/+30.7600+129.9475/+30.7613+129.9400/+30.7673+129.9200/+30.7692+129.9000/+30.7689+129.8800/+30.7709+129.8600/+30.7735+129.8400/+30.7770+129.8200/+30.7800+129.8069/+30.7819+129.8000/+30.7834+129.7800/+30.7905+129.7600/+30.8000+129.7404/+30.8004+129.7400/+30.8184+129.7200/+30.8200+129.7179/+30.8323+129.7000/+30.8400+129.6836/+30.8600+129.6902/+30.8628+129.7000/ 西 60 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8131+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.7817+130.2800/+30.8000+130.2642/+30.8131+130.2800/ 北西 3 鹿児島県三島村 4630300 2026-04-08T12:00:00+09:00 2026-04-08T15:00:00+09:00 降灰 70 +30.9010+129.7000/+30.9000+129.7070/+30.8958+129.7000/+30.9000+129.6958/+30.9010+129.7000/ +30.8869+129.7200/+30.8910+129.7400/+30.8927+129.7600/+30.8940+129.7800/+30.8993+129.8000/+30.8967+129.8200/+30.8940+129.8400/+30.8890+129.8600/+30.8823+129.8800/+30.8800+129.8889/+30.8790+129.9000/+30.8757+129.9200/+30.8751+129.9400/+30.8741+129.9600/+30.8726+129.9800/+30.8713+130.0000/+30.8600+130.0115/+30.8558+130.0200/+30.8522+130.0400/+30.8477+130.0600/+30.8404+130.0800/+30.8400+130.0807/+30.8393+130.1000/+30.8390+130.1200/+30.8387+130.1400/+30.8385+130.1600/+30.8380+130.1800/+30.8372+130.2000/+30.8351+130.2200/+30.8256+130.2400/+30.8200+130.2465/+30.8200+130.2600/+30.8200+130.2800/+30.8199+130.3000/+30.8140+130.3200/+30.8000+130.3340/+30.7800+130.3264/+30.7735+130.3200/+30.7602+130.3000/+30.7601+130.2800/+30.7601+130.2600/+30.7602+130.2400/+30.7605+130.2200/+30.7609+130.2000/+30.7617+130.1800/+30.7630+130.1600/+30.7652+130.1400/+30.7677+130.1200/+30.7717+130.1000/+30.7775+130.0800/+30.7800+130.0746/+30.7806+130.0600/+30.7811+130.0400/+30.7814+130.0200/+30.7828+130.0000/+30.7823+129.9800/+30.7832+129.9600/+30.7849+129.9400/+30.7892+129.9200/+30.7924+129.9000/+30.7961+129.8800/+30.8000+129.8713/+30.8025+129.8600/+30.8071+129.8400/+30.8097+129.8200/+30.8126+129.8000/+30.8196+129.7800/+30.8200+129.7786/+30.8267+129.7600/+30.8350+129.7400/+30.8400+129.7293/+30.8524+129.7200/+30.8600+129.7138/+30.8800+129.7158/+30.8869+129.7200/ 西 60 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8124+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.7876+130.2800/+30.8000+130.2649/+30.8124+130.2800/ 北西 3 鹿児島県三島村 4630300 2026-04-08T15:00:00+09:00 2026-04-08T18:00:00+09:00 降灰 70 +30.9492+129.8400/+30.9513+129.8600/+30.9521+129.8800/+30.9491+129.9000/+30.9469+129.9200/+30.9426+129.9400/+30.9400+129.9473/+30.9361+129.9600/+30.9276+129.9800/+30.9211+130.0000/+30.9200+130.0030/+30.9148+130.0200/+30.9000+130.0391/+30.8998+130.0400/+30.8944+130.0600/+30.8875+130.0800/+30.8800+130.0923/+30.8789+130.1000/+30.8763+130.1200/+30.8703+130.1400/+30.8600+130.1563/+30.8596+130.1600/+30.8579+130.1800/+30.8547+130.2000/+30.8400+130.2195/+30.8400+130.2200/+30.8397+130.2400/+30.8394+130.2600/+30.8368+130.2800/+30.8200+130.2979/+30.8200+130.3000/+30.8180+130.3200/+30.8000+130.3380/+30.7800+130.3339/+30.7661+130.3200/+30.7602+130.3000/+30.7601+130.2800/+30.7604+130.2600/+30.7614+130.2400/+30.7642+130.2200/+30.7690+130.2000/+30.7800+130.1802/+30.7800+130.1800/+30.7807+130.1600/+30.7818+130.1400/+30.7837+130.1200/+30.7874+130.1000/+30.7917+130.0800/+30.8000+130.0605/+30.8001+130.0600/+30.8032+130.0400/+30.8073+130.0200/+30.8145+130.0000/+30.8173+129.9800/+30.8200+129.9742/+30.8262+129.9600/+30.8400+129.9402/+30.8401+129.9400/+30.8509+129.9200/+30.8600+129.9006/+30.8603+129.9000/+30.8724+129.8800/+30.8800+129.8687/+30.8884+129.8600/+30.9000+129.8468/+30.9055+129.8400/+30.9172+129.8200/+30.9200+129.8178/+30.9288+129.8200/+30.9400+129.8281/+30.9492+129.8400/ 西 50 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8080+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.7920+130.2800/+30.8000+130.2705/+30.8080+130.2800/ 北西 3 鹿児島県三島村 4630300 2026-04-08T18:00:00+09:00 2026-04-08T21:00:00+09:00 降灰 70 +31.0021+129.8600/+31.0104+129.8800/+31.0119+129.9000/+31.0128+129.9200/+31.0056+129.9400/+31.0000+129.9538/+30.9983+129.9600/+30.9919+129.9800/+30.9838+130.0000/+30.9800+130.0069/+30.9740+130.0200/+30.9600+130.0386/+30.9595+130.0400/+30.9506+130.0600/+30.9400+130.0800/+30.9327+130.1000/+30.9200+130.1179/+30.9192+130.1200/+30.9126+130.1400/+30.9000+130.1576/+30.8995+130.1600/+30.8937+130.1800/+30.8800+130.1970/+30.8793+130.2000/+30.8731+130.2200/+30.8600+130.2337/+30.8592+130.2400/+30.8535+130.2600/+30.8400+130.2736/+30.8398+130.2800/+30.8367+130.3000/+30.8200+130.3168/+30.8182+130.3200/+30.8000+130.3381/+30.7800+130.3328/+30.7672+130.3200/+30.7602+130.3000/+30.7605+130.2800/+30.7800+130.2601/+30.7800+130.2600/+30.7803+130.2400/+30.7812+130.2200/+30.7849+130.2000/+30.8000+130.1802/+30.8000+130.1800/+30.8018+130.1600/+30.8058+130.1400/+30.8178+130.1200/+30.8200+130.1165/+30.8230+130.1000/+30.8276+130.0800/+30.8400+130.0608/+30.8404+130.0600/+30.8463+130.0400/+30.8588+130.0200/+30.8600+130.0134/+30.8624+130.0000/+30.8747+129.9800/+30.8800+129.9718/+30.8873+129.9600/+30.9000+129.9430/+30.9027+129.9400/+30.9175+129.9200/+30.9200+129.9159/+30.9341+129.9000/+30.9400+129.8937/+30.9540+129.8800/+30.9600+129.8730/+30.9800+129.8677/+30.9955+129.8600/+31.0000+129.8566/+31.0021+129.8600/ 北西 50 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8049+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.7965+130.2800/+30.8000+130.2758/+30.8049+130.2800/ 北西 3 鹿児島県三島村 4630300 2026-04-08T21:00:00+09:00 2026-04-09T00:00:00+09:00 降灰 70 +31.1075+129.9400/+31.1065+129.9600/+31.1000+129.9695/+31.0922+129.9800/+31.0800+129.9947/+31.0776+130.0000/+31.0662+130.0200/+31.0600+130.0270/+31.0509+130.0400/+31.0400+130.0518/+31.0319+130.0600/+31.0200+130.0709/+31.0155+130.0800/+31.0014+130.1000/+31.0000+130.1012/+30.9800+130.1157/+30.9761+130.1200/+30.9600+130.1350/+30.9562+130.1400/+30.9400+130.1563/+30.9382+130.1600/+30.9200+130.1796/+30.9197+130.1800/+30.9028+130.2000/+30.9000+130.2029/+30.8937+130.2200/+30.8800+130.2337/+30.8779+130.2400/+30.8600+130.2581/+30.8597+130.2600/+30.8447+130.2800/+30.8400+130.2847/+30.8394+130.3000/+30.8200+130.3194/+30.8181+130.3200/+30.8000+130.3381/+30.7800+130.3314/+30.7686+130.3200/+30.7604+130.3000/+30.7645+130.2800/+30.7800+130.2645/+30.7802+130.2600/+30.7914+130.2400/+30.8000+130.2314/+30.8013+130.2200/+30.8200+130.2000/+30.8240+130.1800/+30.8400+130.1618/+30.8408+130.1600/+30.8492+130.1400/+30.8600+130.1284/+30.8644+130.1200/+30.8778+130.1000/+30.8800+130.0975/+30.8895+130.0800/+30.9000+130.0676/+30.9073+130.0600/+30.9200+130.0455/+30.9242+130.0400/+30.9323+130.0200/+30.9400+130.0112/+30.9508+130.0000/+30.9600+129.9910/+30.9724+129.9800/+30.9800+129.9695/+30.9907+129.9600/+31.0000+129.9507/+31.0188+129.9400/+31.0200+129.9394/+31.0400+129.9293/+31.0600+129.9214/+31.0622+129.9200/+31.0800+129.9116/+31.0974+129.9200/+31.1000+129.9245/+31.1075+129.9400/ 北西 50 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8057+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.7966+130.2800/+30.8000+130.2761/+30.8057+130.2800/ 北西 3 鹿児島県三島村 4630300 2026-04-09T00:00:00+09:00 2026-04-09T03:00:00+09:00 降灰 70 +31.1371+129.9400/+31.1391+129.9600/+31.1333+129.9800/+31.1248+130.0000/+31.1200+130.0049/+31.1095+130.0200/+31.1000+130.0327/+31.0943+130.0400/+31.0800+130.0511/+31.0727+130.0600/+31.0600+130.0745/+31.0556+130.0800/+31.0400+130.0943/+31.0335+130.1000/+31.0200+130.1125/+31.0113+130.1200/+31.0000+130.1271/+30.9818+130.1400/+30.9800+130.1418/+30.9649+130.1600/+30.9600+130.1646/+30.9477+130.1800/+30.9400+130.1875/+30.9280+130.2000/+30.9200+130.2079/+30.9087+130.2200/+30.9000+130.2285/+30.8922+130.2400/+30.8800+130.2522/+30.8750+130.2600/+30.8600+130.2749/+30.8584+130.2800/+30.8400+130.2984/+30.8397+130.3000/+30.8200+130.3197/+30.8188+130.3200/+30.8000+130.3387/+30.7800+130.3325/+30.7675+130.3200/+30.7606+130.3000/+30.7725+130.2800/+30.7800+130.2725/+30.7806+130.2600/+30.8000+130.2405/+30.8003+130.2400/+30.8105+130.2200/+30.8200+130.2105/+30.8227+130.2000/+30.8400+130.1820/+30.8412+130.1800/+30.8556+130.1600/+30.8600+130.1553/+30.8666+130.1400/+30.8800+130.1253/+30.8837+130.1200/+30.9000+130.1020/+30.9018+130.1000/+30.9186+130.0800/+30.9200+130.0785/+30.9385+130.0600/+30.9400+130.0562/+30.9460+130.0400/+30.9600+130.0252/+30.9654+130.0200/+30.9800+130.0057/+30.9885+130.0000/+31.0000+129.9905/+31.0151+129.9800/+31.0200+129.9749/+31.0400+129.9604/+31.0416+129.9600/+31.0600+129.9504/+31.0800+129.9405/+31.0823+129.9400/+31.1000+129.9349/+31.1200+129.9365/+31.1371+129.9400/ 北西 50 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8061+130.2800/+30.8195+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.7973+130.2800/+30.8000+130.2773/+30.8061+130.2800/ 北西 3 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、８日０９時から１２時までは火口から西方向、８日２１時から２４時までは火口から北西方向に降灰が予想されます。 　８日９時から９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 　０８日０９時から１２時まで　西　　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　０８日１２時から１５時まで　西　　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　０８日１５時から１８時まで　西　　　　　　　５０ｋｍ　　３ｋｍ　　　　　 　０８日１８時から２１時まで　北西　　　　　　５０ｋｍ　　３ｋｍ　　　　　 　０８日２１時から２４時まで　北西　　　　　　５０ｋｍ　　３ｋｍ　　　　　 　０９日００時から０３時まで　北西　　　　　　５０ｋｍ　　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。 　鹿児島県：三島村 　 　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。