2026-07-03T23:00:00Z 通常 気象庁本庁 気象庁 2026-07-04T08:00:00+09:00 2026-07-04T09:00:00+09:00 2026-07-05T03:00:00+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０９時から１２時までは火口から東方向、４日２１時から２４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 2026-07-04T09:00:00+09:00 2026-07-04T12:00:00+09:00 降灰 70 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東 80 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/+30.8144+130.3400/+30.8000+130.3550/+30.7893+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 2026-07-04T12:00:00+09:00 2026-07-04T15:00:00+09:00 降灰 70 +30.9441+130.7000/+30.9459+130.7200/+30.9472+130.7400/+30.9486+130.7600/+30.9493+130.7800/+30.9538+130.8000/+30.9532+130.8200/+30.9544+130.8400/+30.9543+130.8600/+30.9528+130.8800/+30.9507+130.9000/+30.9482+130.9200/+30.9450+130.9400/+30.9441+130.9600/+30.9466+130.9800/+30.9498+131.0000/+30.9511+131.0200/+30.9528+131.0400/+30.9501+131.0600/+30.9401+131.0800/+30.9400+131.0802/+30.9399+131.0800/+30.9266+131.0600/+30.9200+131.0493/+30.9118+131.0400/+30.9000+131.0281/+30.8986+131.0200/+30.8954+131.0000/+30.8917+130.9800/+30.8885+130.9600/+30.8837+130.9400/+30.8800+130.9275/+30.8780+130.9200/+30.8732+130.9000/+30.8680+130.8800/+30.8641+130.8600/+30.8608+130.8400/+30.8600+130.8380/+30.8545+130.8200/+30.8518+130.8000/+30.8502+130.7800/+30.8488+130.7600/+30.8456+130.7400/+30.8455+130.7200/+30.8425+130.7000/+30.8408+130.6800/+30.8400+130.6741/+30.8331+130.6600/+30.8256+130.6400/+30.8207+130.6200/+30.8266+130.6000/+30.8236+130.5800/+30.8218+130.5600/+30.8203+130.5400/+30.8200+130.5366/+30.8104+130.5200/+30.8045+130.5000/+30.8018+130.4800/+30.8007+130.4600/+30.8000+130.4400/+30.8000+130.4395/+30.7837+130.4200/+30.7808+130.4000/+30.7802+130.3800/+30.7801+130.3600/+30.7800+130.3587/+30.7617+130.3400/+30.7604+130.3200/+30.7621+130.3000/+30.7800+130.2821/+30.8000+130.2807/+30.8193+130.3000/+30.8200+130.3024/+30.8376+130.3200/+30.8398+130.3400/+30.8399+130.3600/+30.8400+130.3616/+30.8577+130.3800/+30.8594+130.4000/+30.8599+130.4200/+30.8600+130.4217/+30.8756+130.4400/+30.8785+130.4600/+30.8796+130.4800/+30.8800+130.4839/+30.8920+130.5000/+30.8963+130.5200/+30.8982+130.5400/+30.9000+130.5555/+30.9032+130.5600/+30.9123+130.5800/+30.9200+130.5938/+30.9263+130.6000/+30.9291+130.6200/+30.9314+130.6400/+30.9330+130.6600/+30.9352+130.6800/+30.9400+130.6925/+30.9441+130.7000/ 東 80 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/+30.8130+130.3400/+30.8000+130.3568/+30.7886+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 2026-07-04T15:00:00+09:00 2026-07-04T18:00:00+09:00 降灰 70 +30.9073+130.7200/+30.9072+130.7400/+30.9071+130.7600/+30.9072+130.7800/+30.9072+130.8000/+30.9076+130.8200/+30.9066+130.8400/+30.9061+130.8600/+30.9063+130.8800/+30.9064+130.9000/+30.9063+130.9200/+30.9062+130.9400/+30.9058+130.9600/+30.9050+130.9800/+30.9041+131.0000/+30.9048+131.0200/+30.9056+131.0400/+30.9044+131.0600/+30.9009+131.0800/+30.9000+131.0850/+30.8946+131.0800/+30.8800+131.0687/+30.8654+131.0600/+30.8600+131.0571/+30.8524+131.0400/+30.8437+131.0200/+30.8400+131.0117/+30.8378+131.0000/+30.8340+130.9800/+30.8309+130.9600/+30.8281+130.9400/+30.8257+130.9200/+30.8235+130.9000/+30.8210+130.8800/+30.8200+130.8709/+30.8189+130.8600/+30.8170+130.8400/+30.8158+130.8200/+30.8144+130.8000/+30.8123+130.7800/+30.8106+130.7600/+30.8086+130.7400/+30.8090+130.7200/+30.8074+130.7000/+30.8054+130.6800/+30.8039+130.6600/+30.8027+130.6400/+30.8006+130.6200/+30.8046+130.6000/+30.8032+130.5800/+30.8021+130.5600/+30.8013+130.5400/+30.8005+130.5200/+30.8000+130.5000/+30.8000+130.4991/+30.7884+130.4800/+30.7832+130.4600/+30.7811+130.4400/+30.7804+130.4200/+30.7802+130.4000/+30.7801+130.3800/+30.7800+130.3747/+30.7656+130.3600/+30.7605+130.3400/+30.7602+130.3200/+30.7617+130.3000/+30.7800+130.2816/+30.8000+130.2807/+30.8193+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+130.4035/+30.8548+130.4200/+30.8581+130.4400/+30.8589+130.4600/+30.8595+130.4800/+30.8600+130.4991/+30.8606+130.5000/+30.8730+130.5200/+30.8751+130.5400/+30.8771+130.5600/+30.8781+130.5800/+30.8790+130.6000/+30.8800+130.6029/+30.8938+130.6200/+30.8946+130.6400/+30.8945+130.6600/+30.8948+130.6800/+30.8954+130.7000/+30.9000+130.7110/+30.9073+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/+30.8102+130.3400/+30.8000+130.3554/+30.7898+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 2026-07-04T18:00:00+09:00 2026-07-04T21:00:00+09:00 降灰 70 +30.8804+130.7000/+30.8800+130.7052/+30.8796+130.7200/+30.8791+130.7400/+30.8785+130.7600/+30.8788+130.7800/+30.8792+130.8000/+30.8800+130.8025/+30.8868+130.8200/+30.8861+130.8400/+30.8853+130.8600/+30.8840+130.8800/+30.8825+130.9000/+30.8809+130.9200/+30.8800+130.9308/+30.8791+130.9400/+30.8778+130.9600/+30.8770+130.9800/+30.8761+131.0000/+30.8744+131.0200/+30.8725+131.0400/+30.8698+131.0600/+30.8660+131.0800/+30.8608+131.1000/+30.8600+131.1052/+30.8525+131.1000/+30.8400+131.0962/+30.8357+131.0800/+30.8313+131.0600/+30.8280+131.0400/+30.8256+131.0200/+30.8236+131.0000/+30.8212+130.9800/+30.8200+130.9689/+30.8191+130.9600/+30.8171+130.9400/+30.8152+130.9200/+30.8136+130.9000/+30.8108+130.8800/+30.8083+130.8600/+30.8062+130.8400/+30.8061+130.8200/+30.8050+130.8000/+30.8034+130.7800/+30.8021+130.7600/+30.8005+130.7400/+30.8000+130.7368/+30.7956+130.7200/+30.7933+130.7000/+30.7910+130.6800/+30.7892+130.6600/+30.7877+130.6400/+30.7863+130.6200/+30.8000+130.6047/+30.8011+130.6000/+30.8005+130.5800/+30.8000+130.5637/+30.7983+130.5600/+30.7917+130.5400/+30.7866+130.5200/+30.7836+130.5000/+30.7819+130.4800/+30.7809+130.4600/+30.7805+130.4400/+30.7803+130.4200/+30.7801+130.4000/+30.7800+130.3800/+30.7800+130.3791/+30.7621+130.3600/+30.7603+130.3400/+30.7602+130.3200/+30.7612+130.3000/+30.7800+130.2812/+30.8000+130.2806/+30.8194+130.3000/+30.8199+130.3200/+30.8200+130.3222/+30.8377+130.3400/+30.8396+130.3600/+30.8398+130.3800/+30.8398+130.4000/+30.8399+130.4200/+30.8400+130.4299/+30.8479+130.4400/+30.8557+130.4600/+30.8574+130.4800/+30.8581+130.5000/+30.8587+130.5200/+30.8591+130.5400/+30.8599+130.5600/+30.8600+130.5617/+30.8668+130.5800/+30.8691+130.6000/+30.8784+130.6200/+30.8794+130.6400/+30.8794+130.6600/+30.8796+130.6800/+30.8800+130.6949/+30.8804+130.7000/ 東 80 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/+30.8100+130.3400/+30.8000+130.3542/+30.7900+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 2026-07-04T21:00:00+09:00 2026-07-05T00:00:00+09:00 降灰 70 +30.8709+130.6200/+30.8704+130.6400/+30.8704+130.6600/+30.8703+130.6800/+30.8701+130.7000/+30.8722+130.7200/+30.8716+130.7400/+30.8708+130.7600/+30.8695+130.7800/+30.8678+130.8000/+30.8739+130.8200/+30.8734+130.8400/+30.8719+130.8600/+30.8701+130.8800/+30.8680+130.9000/+30.8668+130.9200/+30.8654+130.9400/+30.8634+130.9600/+30.8607+130.9800/+30.8600+130.9848/+30.8528+131.0000/+30.8411+131.0200/+30.8400+131.0216/+30.8390+131.0200/+30.8267+131.0000/+30.8200+130.9873/+30.8164+130.9800/+30.8072+130.9600/+30.8000+130.9426/+30.7996+130.9400/+30.7965+130.9200/+30.7938+130.9000/+30.7900+130.8800/+30.7869+130.8600/+30.7842+130.8400/+30.7869+130.8200/+30.7851+130.8000/+30.7819+130.7800/+30.7800+130.7648/+30.7794+130.7600/+30.7775+130.7400/+30.7800+130.7371/+30.7863+130.7200/+30.7857+130.7000/+30.7847+130.6800/+30.7841+130.6600/+30.7837+130.6400/+30.7829+130.6200/+30.7854+130.6000/+30.7843+130.5800/+30.7834+130.5600/+30.7824+130.5400/+30.7817+130.5200/+30.7811+130.5000/+30.7807+130.4800/+30.7804+130.4600/+30.7803+130.4400/+30.7801+130.4200/+30.7800+130.4049/+30.7766+130.4000/+30.7635+130.3800/+30.7607+130.3600/+30.7602+130.3400/+30.7601+130.3200/+30.7608+130.3000/+30.7800+130.2808/+30.8000+130.2804/+30.8196+130.3000/+30.8200+130.3200/+30.8200+130.3400/+30.8200+130.3402/+30.8385+130.3600/+30.8394+130.3800/+30.8395+130.4000/+30.8396+130.4200/+30.8396+130.4400/+30.8396+130.4600/+30.8398+130.4800/+30.8400+130.4891/+30.8460+130.5000/+30.8516+130.5200/+30.8539+130.5400/+30.8554+130.5600/+30.8566+130.5800/+30.8565+130.6000/+30.8600+130.6090/+30.8709+130.6200/ 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/+30.8063+130.3400/+30.8000+130.3494/+30.7937+130.3400/+30.7800+130.3242/+30.7758+130.3200/+30.7800+130.3158/+30.7812+130.3000/+30.8000+130.2812/+30.8188+130.3000/ 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 +30.8741+130.6200/+30.8735+130.6400/+30.8738+130.6600/+30.8741+130.6800/+30.8745+130.7000/+30.8733+130.7200/+30.8721+130.7400/+30.8706+130.7600/+30.8701+130.7800/+30.8694+130.8000/+30.8743+130.8200/+30.8742+130.8400/+30.8724+130.8600/+30.8691+130.8800/+30.8650+130.9000/+30.8612+130.9200/+30.8600+130.9257/+30.8470+130.9400/+30.8400+130.9485/+30.8361+130.9400/+30.8265+130.9200/+30.8200+130.9031/+30.8189+130.9000/+30.8104+130.8800/+30.8038+130.8600/+30.8000+130.8445/+30.7992+130.8400/+30.7997+130.8200/+30.7977+130.8000/+30.7941+130.7800/+30.7912+130.7600/+30.7887+130.7400/+30.7910+130.7200/+30.7893+130.7000/+30.7877+130.6800/+30.7867+130.6600/+30.7859+130.6400/+30.7850+130.6200/+30.7918+130.6000/+30.7897+130.5800/+30.7867+130.5600/+30.7850+130.5400/+30.7830+130.5200/+30.7821+130.5000/+30.7813+130.4800/+30.7809+130.4600/+30.7805+130.4400/+30.7802+130.4200/+30.7801+130.4000/+30.7800+130.3968/+30.7675+130.3800/+30.7612+130.3600/+30.7602+130.3400/+30.7601+130.3200/+30.7606+130.3000/+30.7800+130.2806/+30.8000+130.2803/+30.8197+130.3000/+30.8200+130.3200/+30.8200+130.3235/+30.8364+130.3400/+30.8394+130.3600/+30.8396+130.3800/+30.8397+130.4000/+30.8397+130.4200/+30.8399+130.4400/+30.8400+130.4457/+30.8495+130.4600/+30.8550+130.4800/+30.8564+130.5000/+30.8574+130.5200/+30.8575+130.5400/+30.8583+130.5600/+30.8590+130.5800/+30.8593+130.6000/+30.8600+130.6026/+30.8741+130.6200/ 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/+30.8011+130.3400/+30.8000+130.3417/+30.7989+130.3400/+30.7800+130.3306/+30.7695+130.3200/+30.7800+130.3095/+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０９時から１２時までは火口から東方向、４日２１時から２４時までは火口から東方向に降灰が予想されます。 　４日９時から５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 　０４日０９時から１２時まで　東　　　　　　　８０ｋｍ　　３ｋｍ　　　　　 　０４日１２時から１５時まで　東　　　　　　　８０ｋｍ　　３ｋｍ　　　　　 　０４日１５時から１８時まで　東　　　　　　　７０ｋｍ　　３ｋｍ　　　　　 　０４日１８時から２１時まで　東　　　　　　　８０ｋｍ　　３ｋｍ　　　　　 　０４日２１時から２４時まで　東　　　　　　　７０ｋｍ　　３ｋｍ　　　　　 　０５日００時から０３時まで　東　　　　　　　６０ｋｍ　　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。