2026-07-04T11:00:00Z 通常 気象庁本庁 気象庁 2026-07-04T20:00:00+09:00 2026-07-04T21:00:00+09:00 2026-07-05T15:00:00+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、４日２１時から２４時までは火口から東方向、５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 2026-07-04T21:00:00+09:00 2026-07-05T00:00:00+09:00 降灰 70 +30.9076+130.7200/+30.9073+130.7400/+30.9070+130.7600/+30.9066+130.7800/+30.9061+130.8000/+30.9059+130.8200/+30.9052+130.8400/+30.9044+130.8600/+30.9037+130.8800/+30.9030+130.9000/+30.9047+130.9200/+30.9063+130.9400/+30.9064+130.9600/+30.9051+130.9800/+30.9038+131.0000/+30.9027+131.0200/+30.9015+131.0400/+30.9000+131.0568/+30.8959+131.0400/+30.8916+131.0200/+30.8861+131.0000/+30.8800+130.9918/+30.8637+130.9800/+30.8600+130.9783/+30.8488+130.9600/+30.8400+130.9401/+30.8400+130.9400/+30.8375+130.9200/+30.8353+130.9000/+30.8307+130.8800/+30.8271+130.8600/+30.8236+130.8400/+30.8228+130.8200/+30.8200+130.8035/+30.8195+130.8000/+30.8163+130.7800/+30.8139+130.7600/+30.8121+130.7400/+30.8150+130.7200/+30.8122+130.7000/+30.8094+130.6800/+30.8071+130.6600/+30.8053+130.6400/+30.8032+130.6200/+30.8084+130.6000/+30.8061+130.5800/+30.8037+130.5600/+30.8020+130.5400/+30.8012+130.5200/+30.8006+130.5000/+30.8001+130.4800/+30.8000+130.4783/+30.7870+130.4600/+30.7820+130.4400/+30.7807+130.4200/+30.7802+130.4000/+30.7801+130.3800/+30.7800+130.3607/+30.7793+130.3600/+30.7606+130.3400/+30.7602+130.3200/+30.7610+130.3000/+30.7800+130.2810/+30.8000+130.2804/+30.8196+130.3000/+30.8200+130.3200/+30.8200+130.3204/+30.8393+130.3400/+30.8398+130.3600/+30.8398+130.3800/+30.8399+130.4000/+30.8400+130.4064/+30.8525+130.4200/+30.8579+130.4400/+30.8589+130.4600/+30.8592+130.4800/+30.8597+130.5000/+30.8600+130.5094/+30.8667+130.5200/+30.8733+130.5400/+30.8755+130.5600/+30.8771+130.5800/+30.8780+130.6000/+30.8800+130.6061/+30.8930+130.6200/+30.8938+130.6400/+30.8941+130.6600/+30.8946+130.6800/+30.8953+130.7000/+30.9000+130.7112/+30.9076+130.7200/ 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/+30.8073+130.3400/+30.8000+130.3507/+30.7927+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 2026-07-05T00:00:00+09:00 2026-07-05T03:00:00+09:00 降灰 70 +30.9217+130.8200/+30.9206+130.8400/+30.9200+130.8507/+30.9194+130.8600/+30.9182+130.8800/+30.9167+130.9000/+30.9141+130.9200/+30.9111+130.9400/+30.9085+130.9600/+30.9068+130.9800/+30.9047+131.0000/+30.9000+131.0147/+30.8930+131.0000/+30.8888+130.9800/+30.8843+130.9600/+30.8800+130.9468/+30.8778+130.9400/+30.8698+130.9200/+30.8621+130.9000/+30.8600+130.8967/+30.8519+130.8800/+30.8430+130.8600/+30.8400+130.8524/+30.8372+130.8400/+30.8400+130.8334/+30.8434+130.8200/+30.8411+130.8000/+30.8400+130.7890/+30.8384+130.7800/+30.8353+130.7600/+30.8258+130.7400/+30.8276+130.7200/+30.8241+130.7000/+30.8219+130.6800/+30.8200+130.6682/+30.8180+130.6600/+30.8131+130.6400/+30.8103+130.6200/+30.8200+130.6089/+30.8221+130.6000/+30.8209+130.5800/+30.8200+130.5655/+30.8171+130.5600/+30.8084+130.5400/+30.8043+130.5200/+30.8022+130.5000/+30.8010+130.4800/+30.8005+130.4600/+30.8000+130.4485/+30.7927+130.4400/+30.7826+130.4200/+30.7806+130.4000/+30.7802+130.3800/+30.7800+130.3600/+30.7800+130.3593/+30.7610+130.3400/+30.7602+130.3200/+30.7608+130.3000/+30.7800+130.2808/+30.8000+130.2803/+30.8197+130.3000/+30.8200+130.3023/+30.8377+130.3200/+30.8398+130.3400/+30.8399+130.3600/+30.8400+130.3646/+30.8546+130.3800/+30.8586+130.4000/+30.8594+130.4200/+30.8600+130.4317/+30.8672+130.4400/+30.8750+130.4600/+30.8774+130.4800/+30.8790+130.5000/+30.8800+130.5172/+30.8813+130.5200/+30.8890+130.5400/+30.8921+130.5600/+30.8935+130.5800/+30.8970+130.6000/+30.8992+130.6200/+30.9000+130.6302/+30.9043+130.6400/+30.9076+130.6600/+30.9096+130.6800/+30.9092+130.7000/+30.9131+130.7200/+30.9121+130.7400/+30.9108+130.7600/+30.9120+130.7800/+30.9134+130.8000/+30.9200+130.8173/+30.9217+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/+30.8026+130.3400/+30.8000+130.3434/+30.7978+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 2026-07-05T03:00:00+09:00 2026-07-05T06:00:00+09:00 降灰 70 +30.9638+130.6800/+30.9699+130.7000/+30.9745+130.7200/+30.9754+130.7400/+30.9762+130.7600/+30.9782+130.7800/+30.9798+130.8000/+30.9787+130.8200/+30.9772+130.8400/+30.9748+130.8600/+30.9709+130.8800/+30.9652+130.9000/+30.9600+130.9127/+30.9400+130.9076/+30.9370+130.9000/+30.9296+130.8800/+30.9233+130.8600/+30.9200+130.8492/+30.9173+130.8400/+30.9106+130.8200/+30.9000+130.8024/+30.8993+130.8000/+30.8955+130.7800/+30.8927+130.7600/+30.8879+130.7400/+30.8844+130.7200/+30.8800+130.7045/+30.8780+130.7000/+30.8716+130.6800/+30.8666+130.6600/+30.8627+130.6400/+30.8600+130.6323/+30.8540+130.6200/+30.8600+130.6085/+30.8610+130.6000/+30.8600+130.5873/+30.8569+130.5800/+30.8457+130.5600/+30.8422+130.5400/+30.8402+130.5200/+30.8400+130.5189/+30.8259+130.5000/+30.8221+130.4800/+30.8204+130.4600/+30.8200+130.4566/+30.8057+130.4400/+30.8010+130.4200/+30.8002+130.4000/+30.8000+130.3985/+30.7820+130.3800/+30.7802+130.3600/+30.7800+130.3488/+30.7712+130.3400/+30.7603+130.3200/+30.7609+130.3000/+30.7800+130.2809/+30.8000+130.2802/+30.8198+130.3000/+30.8200+130.3004/+30.8396+130.3200/+30.8399+130.3400/+30.8400+130.3413/+30.8585+130.3600/+30.8597+130.3800/+30.8600+130.3849/+30.8746+130.4000/+30.8790+130.4200/+30.8800+130.4315/+30.8878+130.4400/+30.8969+130.4600/+30.8994+130.4800/+30.9000+130.4841/+30.9115+130.5000/+30.9171+130.5200/+30.9197+130.5400/+30.9200+130.5422/+30.9303+130.5600/+30.9400+130.5782/+30.9417+130.5800/+30.9482+130.6000/+30.9521+130.6200/+30.9552+130.6400/+30.9573+130.6600/+30.9600+130.6747/+30.9638+130.6800/ 東 60 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8188+130.3000/+30.8187+130.3200/+30.8018+130.3400/+30.8000+130.3421/+30.7987+130.3400/+30.7813+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 2026-07-05T06:00:00+09:00 2026-07-05T09:00:00+09:00 降灰 70 +30.9810+130.8000/+30.9811+130.8200/+30.9811+130.8400/+30.9804+130.8600/+30.9800+130.8640/+30.9783+130.8800/+30.9752+130.9000/+30.9719+130.9200/+30.9666+130.9400/+30.9600+130.9561/+30.9400+130.9422/+30.9393+130.9400/+30.9334+130.9200/+30.9285+130.9000/+30.9218+130.8800/+30.9200+130.8738/+30.9162+130.8600/+30.9103+130.8400/+30.9026+130.8200/+30.9000+130.8166/+30.8943+130.8000/+30.8912+130.7800/+30.8888+130.7600/+30.8842+130.7400/+30.8803+130.7200/+30.8800+130.7193/+30.8717+130.7000/+30.8663+130.6800/+30.8615+130.6600/+30.8600+130.6537/+30.8546+130.6400/+30.8479+130.6200/+30.8567+130.6000/+30.8469+130.5800/+30.8429+130.5600/+30.8408+130.5400/+30.8400+130.5323/+30.8308+130.5200/+30.8228+130.5000/+30.8210+130.4800/+30.8200+130.4600/+30.8200+130.4598/+30.8024+130.4400/+30.8005+130.4200/+30.8001+130.4000/+30.8000+130.3996/+30.7810+130.3800/+30.7801+130.3600/+30.7800+130.3494/+30.7706+130.3400/+30.7604+130.3200/+30.7612+130.3000/+30.7800+130.2811/+30.8000+130.2803/+30.8197+130.3000/+30.8200+130.3008/+30.8392+130.3200/+30.8399+130.3400/+30.8400+130.3544/+30.8456+130.3600/+30.8593+130.3800/+30.8597+130.4000/+30.8600+130.4064/+30.8733+130.4200/+30.8788+130.4400/+30.8796+130.4600/+30.8800+130.4645/+30.8934+130.4800/+30.8979+130.5000/+30.8996+130.5200/+30.9000+130.5234/+30.9120+130.5400/+30.9168+130.5600/+30.9192+130.5800/+30.9200+130.5822/+30.9372+130.6000/+30.9400+130.6198/+30.9401+130.6200/+30.9474+130.6400/+30.9510+130.6600/+30.9549+130.6800/+30.9576+130.7000/+30.9600+130.7143/+30.9633+130.7200/+30.9682+130.7400/+30.9721+130.7600/+30.9767+130.7800/+30.9800+130.7950/+30.9810+130.8000/ 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/+30.8053+130.3400/+30.8000+130.3458/+30.7960+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 2026-07-05T09:00:00+09:00 2026-07-05T12:00:00+09:00 降灰 70 +30.9607+130.7800/+30.9733+130.8000/+30.9742+130.8200/+30.9752+130.8400/+30.9759+130.8600/+30.9765+130.8800/+30.9772+130.9000/+30.9772+130.9200/+30.9772+130.9400/+30.9760+130.9600/+30.9728+130.9800/+30.9676+131.0000/+30.9600+131.0100/+30.9430+131.0000/+30.9400+130.9976/+30.9351+130.9800/+30.9301+130.9600/+30.9252+130.9400/+30.9200+130.9217/+30.9195+130.9200/+30.9134+130.9000/+30.9055+130.8800/+30.9000+130.8689/+30.8963+130.8600/+30.8864+130.8400/+30.8800+130.8261/+30.8779+130.8200/+30.8800+130.8073/+30.8808+130.8000/+30.8800+130.7972/+30.8717+130.7800/+30.8654+130.7600/+30.8600+130.7446/+30.8587+130.7400/+30.8547+130.7200/+30.8540+130.7000/+30.8485+130.6800/+30.8447+130.6600/+30.8422+130.6400/+30.8400+130.6265/+30.8357+130.6200/+30.8353+130.6000/+30.8294+130.5800/+30.8243+130.5600/+30.8216+130.5400/+30.8201+130.5200/+30.8200+130.5195/+30.8082+130.5000/+30.8033+130.4800/+30.8013+130.4600/+30.8003+130.4400/+30.8000+130.4356/+30.7877+130.4200/+30.7817+130.4000/+30.7803+130.3800/+30.7801+130.3600/+30.7800+130.3576/+30.7627+130.3400/+30.7603+130.3200/+30.7614+130.3000/+30.7800+130.2814/+30.8000+130.2804/+30.8196+130.3000/+30.8200+130.3015/+30.8385+130.3200/+30.8399+130.3400/+30.8399+130.3600/+30.8400+130.3613/+30.8583+130.3800/+30.8595+130.4000/+30.8599+130.4200/+30.8600+130.4210/+30.8767+130.4400/+30.8789+130.4600/+30.8799+130.4800/+30.8800+130.4808/+30.8944+130.5000/+30.8974+130.5200/+30.8995+130.5400/+30.9000+130.5451/+30.9096+130.5600/+30.9143+130.5800/+30.9200+130.5891/+30.9315+130.6000/+30.9342+130.6200/+30.9364+130.6400/+30.9400+130.6571/+30.9414+130.6600/+30.9479+130.6800/+30.9525+130.7000/+30.9541+130.7200/+30.9554+130.7400/+30.9572+130.7600/+30.9600+130.7782/+30.9607+130.7800/ 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/+30.8095+130.3400/+30.8000+130.3519/+30.7919+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 2026-07-05T12:00:00+09:00 2026-07-05T15:00:00+09:00 降灰 70 +30.8804+130.6600/+30.8813+130.6800/+30.8806+130.7000/+30.8800+130.7057/+30.8793+130.7200/+30.8795+130.7400/+30.8797+130.7600/+30.8799+130.7800/+30.8800+130.7952/+30.8801+130.8000/+30.8844+130.8200/+30.8819+130.8400/+30.8800+130.8548/+30.8792+130.8600/+30.8764+130.8800/+30.8729+130.9000/+30.8713+130.9200/+30.8697+130.9400/+30.8685+130.9600/+30.8681+130.9800/+30.8677+131.0000/+30.8649+131.0200/+30.8615+131.0400/+30.8600+131.0476/+30.8432+131.0600/+30.8400+131.0622/+30.8392+131.0600/+30.8332+131.0400/+30.8284+131.0200/+30.8245+131.0000/+30.8233+130.9800/+30.8220+130.9600/+30.8200+130.9407/+30.8199+130.9400/+30.8174+130.9200/+30.8150+130.9000/+30.8084+130.8800/+30.8030+130.8600/+30.8000+130.8463/+30.7986+130.8400/+30.7998+130.8200/+30.7987+130.8000/+30.7959+130.7800/+30.7935+130.7600/+30.7903+130.7400/+30.7917+130.7200/+30.7900+130.7000/+30.7891+130.6800/+30.7880+130.6600/+30.7870+130.6400/+30.7853+130.6200/+30.7905+130.6000/+30.7883+130.5800/+30.7871+130.5600/+30.7847+130.5400/+30.7836+130.5200/+30.7825+130.5000/+30.7815+130.4800/+30.7809+130.4600/+30.7805+130.4400/+30.7803+130.4200/+30.7801+130.4000/+30.7800+130.3800/+30.7800+130.3794/+30.7636+130.3600/+30.7604+130.3400/+30.7602+130.3200/+30.7613+130.3000/+30.7800+130.2813/+30.8000+130.2805/+30.8195+130.3000/+30.8200+130.3200/+30.8200+130.3207/+30.8389+130.3400/+30.8397+130.3600/+30.8398+130.3800/+30.8398+130.4000/+30.8400+130.4183/+30.8415+130.4200/+30.8548+130.4400/+30.8569+130.4600/+30.8579+130.4800/+30.8587+130.5000/+30.8593+130.5200/+30.8597+130.5400/+30.8600+130.5460/+30.8657+130.5600/+30.8692+130.5800/+30.8704+130.6000/+30.8785+130.6200/+30.8791+130.6400/+30.8800+130.6570/+30.8804+130.6600/ 東 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 1 +30.8188+130.3000/+30.8188+130.3200/+30.8092+130.3400/+30.8000+130.3537/+30.7806+130.3400/+30.7800+130.3396/+30.7686+130.3200/+30.7800+130.3086/+30.7812+130.3000/+30.8000+130.2812/+30.8188+130.3000/ 東 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、４日２１時から２４時までは火口から東方向、５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。 　４日２１時から５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 　０４日２１時から２４時まで　東　　　　　　　７０ｋｍ　　３ｋｍ　　　　　 　０５日００時から０３時まで　東　　　　　　　７０ｋｍ　　３ｋｍ　　　　　 　０５日０３時から０６時まで　東　　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　０５日０６時から０９時まで　東　　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　０５日０９時から１２時まで　東　　　　　　　７０ｋｍ　　３ｋｍ　　　　　 　０５日１２時から１５時まで　東　　　　　　　７０ｋｍ　　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、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。