2026-08-03T05:00:00Z 通常 気象庁本庁 気象庁 2026-08-03T14:00:00+09:00 2026-08-03T15:00:00+09:00 2026-08-04T09:00:00+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、３日２１時から２４時までは火口から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 2026-08-03T15:00:00+09:00 2026-08-03T18:00:00+09:00 降灰 70 +30.8174+130.2400/+30.8196+130.2600/+30.8199+130.2800/+30.8198+130.3000/+30.8000+130.3200/+30.7800+130.3200/+30.7601+130.3000/+30.7600+130.2971/+30.7432+130.2800/+30.7405+130.2600/+30.7402+130.2400/+30.7400+130.2304/+30.7297+130.2200/+30.7216+130.2000/+30.7206+130.1800/+30.7200+130.1709/+30.7101+130.1600/+30.7029+130.1400/+30.7011+130.1200/+30.7000+130.1086/+30.6933+130.1000/+30.6847+130.0800/+30.6821+130.0600/+30.6800+130.0465/+30.6749+130.0400/+30.6628+130.0200/+30.6600+130.0022/+30.6582+130.0000/+30.6459+129.9800/+30.6413+129.9600/+30.6400+129.9537/+30.6356+129.9400/+30.6257+129.9200/+30.6202+129.9000/+30.6200+129.8992/+30.6158+129.8800/+30.6106+129.8600/+30.6057+129.8400/+30.6000+129.8208/+30.5994+129.8200/+30.5903+129.8000/+30.5857+129.7800/+30.5810+129.7600/+30.5800+129.7528/+30.5781+129.7400/+30.5770+129.7200/+30.5753+129.7000/+30.5800+129.6831/+30.5814+129.6800/+30.6000+129.6634/+30.6155+129.6800/+30.6200+129.6850/+30.6327+129.7000/+30.6400+129.7097/+30.6471+129.7200/+30.6600+129.7384/+30.6607+129.7400/+30.6723+129.7600/+30.6800+129.7728/+30.6838+129.7800/+30.6937+129.8000/+30.7000+129.8102/+30.7048+129.8200/+30.7124+129.8400/+30.7200+129.8567/+30.7224+129.8600/+30.7332+129.8800/+30.7371+129.9000/+30.7400+129.9102/+30.7434+129.9200/+30.7502+129.9400/+30.7555+129.9600/+30.7596+129.9800/+30.7600+130.0000/+30.7678+130.0200/+30.7709+130.0400/+30.7761+130.0600/+30.7784+130.0800/+30.7799+130.1000/+30.7800+130.1009/+30.7873+130.1200/+30.7940+130.1400/+30.7976+130.1600/+30.7990+130.1800/+30.7996+130.2000/+30.8000+130.2200/+30.8000+130.2207/+30.8174+130.2400/ 西 60 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8065+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3188/+30.7612+130.3000/+30.7661+130.2800/+30.7800+130.2618/+30.8000+130.2735/+30.8065+130.2800/ 西 3 鹿児島県三島村 4630300 2026-08-03T18:00:00+09:00 2026-08-03T21:00:00+09:00 降灰 70 +30.8193+130.2600/+30.8199+130.2800/+30.8199+130.3000/+30.8000+130.3200/+30.7800+130.3199/+30.7601+130.3000/+30.7600+130.2860/+30.7540+130.2800/+30.7405+130.2600/+30.7402+130.2400/+30.7400+130.2276/+30.7325+130.2200/+30.7215+130.2000/+30.7205+130.1800/+30.7200+130.1717/+30.7090+130.1600/+30.7022+130.1400/+30.7004+130.1200/+30.7000+130.1167/+30.6866+130.1000/+30.6818+130.0800/+30.6800+130.0648/+30.6762+130.0600/+30.6663+130.0400/+30.6600+130.0254/+30.6521+130.0200/+30.6410+130.0000/+30.6400+129.9970/+30.6330+129.9800/+30.6256+129.9600/+30.6200+129.9407/+30.6195+129.9400/+30.6079+129.9200/+30.6051+129.9000/+30.6011+129.8800/+30.6000+129.8768/+30.5887+129.8600/+30.5800+129.8435/+30.5781+129.8400/+30.5733+129.8200/+30.5688+129.8000/+30.5658+129.7800/+30.5600+129.7619/+30.5591+129.7600/+30.5506+129.7400/+30.5410+129.7200/+30.5400+129.7185/+30.5348+129.7000/+30.5362+129.6800/+30.5385+129.6600/+30.5400+129.6553/+30.5546+129.6600/+30.5600+129.6613/+30.5681+129.6800/+30.5800+129.6990/+30.5808+129.7000/+30.6000+129.7154/+30.6033+129.7200/+30.6142+129.7400/+30.6200+129.7537/+30.6224+129.7600/+30.6304+129.7800/+30.6381+129.8000/+30.6400+129.8015/+30.6563+129.8200/+30.6600+129.8277/+30.6643+129.8400/+30.6727+129.8600/+30.6795+129.8800/+30.6800+129.8805/+30.7000+129.8973/+30.7015+129.9000/+30.7001+129.9200/+30.7114+129.9400/+30.7161+129.9600/+30.7191+129.9800/+30.7200+129.9830/+30.7306+130.0000/+30.7330+130.0200/+30.7382+130.0400/+30.7400+130.0569/+30.7422+130.0600/+30.7560+130.0800/+30.7590+130.1000/+30.7600+130.1084/+30.7703+130.1200/+30.7778+130.1400/+30.7794+130.1600/+30.7800+130.1751/+30.7847+130.1800/+30.7987+130.2000/+30.7997+130.2200/+30.7999+130.2400/+30.8000+130.2406/+30.8193+130.2600/ 南西 70 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8116+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3187/+30.7613+130.3000/+30.7666+130.2800/+30.7800+130.2627/+30.8000+130.2684/+30.8116+130.2800/ 西 3 鹿児島県三島村 4630300 2026-08-03T21:00:00+09:00 2026-08-04T00:00:00+09:00 降灰 70 +30.8151+130.2400/+30.8197+130.2600/+30.8199+130.2800/+30.8199+130.3000/+30.8141+130.3200/+30.8000+130.3341/+30.7800+130.3297/+30.7703+130.3200/+30.7601+130.3000/+30.7600+130.2800/+30.7600+130.2795/+30.7410+130.2600/+30.7403+130.2400/+30.7402+130.2200/+30.7400+130.2156/+30.7254+130.2000/+30.7215+130.1800/+30.7204+130.1600/+30.7200+130.1535/+30.7098+130.1400/+30.7032+130.1200/+30.7008+130.1000/+30.7000+130.0879/+30.6957+130.0800/+30.6852+130.0600/+30.6825+130.0400/+30.6800+130.0349/+30.6658+130.0200/+30.6627+130.0000/+30.6600+129.9832/+30.6577+129.9800/+30.6488+129.9600/+30.6431+129.9400/+30.6406+129.9200/+30.6400+129.9175/+30.6293+129.9000/+30.6220+129.8800/+30.6200+129.8724/+30.6170+129.8600/+30.6129+129.8400/+30.6112+129.8200/+30.6078+129.8000/+30.6052+129.7800/+30.6000+129.7632/+30.5990+129.7600/+30.5976+129.7400/+30.6000+129.7268/+30.6200+129.7253/+30.6400+129.7249/+30.6600+129.7382/+30.6611+129.7400/+30.6726+129.7600/+30.6800+129.7739/+30.6829+129.7800/+30.6956+129.8000/+30.7000+129.8116/+30.7025+129.8200/+30.7071+129.8400/+30.7120+129.8600/+30.7154+129.8800/+30.7174+129.9000/+30.7200+129.9094/+30.7261+129.9200/+30.7355+129.9400/+30.7400+129.9549/+30.7420+129.9600/+30.7484+129.9800/+30.7417+130.0000/+30.7512+130.0200/+30.7564+130.0400/+30.7590+130.0600/+30.7600+130.0699/+30.7669+130.0800/+30.7759+130.1000/+30.7785+130.1200/+30.7797+130.1400/+30.7800+130.1430/+30.7940+130.1600/+30.7983+130.1800/+30.7995+130.2000/+30.7999+130.2200/+30.8000+130.2239/+30.8151+130.2400/ 西 60 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8134+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3166/+30.7634+130.3000/+30.7667+130.2800/+30.7800+130.2623/+30.8000+130.2637/+30.8134+130.2800/ 西 3 鹿児島県三島村 4630300 2026-08-04T00:00:00+09:00 2026-08-04T03:00:00+09:00 降灰 70 +30.8017+129.9800/+30.8000+129.9820/+30.7944+130.0000/+30.7953+130.0200/+30.7964+130.0400/+30.7976+130.0600/+30.7984+130.0800/+30.7992+130.1000/+30.7998+130.1200/+30.8000+130.1251/+30.8067+130.1400/+30.8107+130.1600/+30.8150+130.1800/+30.8177+130.2000/+30.8191+130.2200/+30.8197+130.2400/+30.8199+130.2600/+30.8199+130.2800/+30.8199+130.3000/+30.8096+130.3200/+30.8000+130.3296/+30.7800+130.3224/+30.7776+130.3200/+30.7601+130.3000/+30.7600+130.2800/+30.7600+130.2600/+30.7600+130.2591/+30.7438+130.2400/+30.7414+130.2200/+30.7408+130.2000/+30.7406+130.1800/+30.7402+130.1600/+30.7400+130.1537/+30.7312+130.1400/+30.7251+130.1200/+30.7229+130.1000/+30.7218+130.0800/+30.7205+130.0600/+30.7200+130.0558/+30.7100+130.0400/+30.7067+130.0200/+30.7000+130.0064/+30.6938+130.0000/+30.6908+129.9800/+30.6883+129.9600/+30.6869+129.9400/+30.6867+129.9200/+30.6859+129.9000/+30.6844+129.8800/+30.6818+129.8600/+30.6800+129.8499/+30.6772+129.8400/+30.6798+129.8200/+30.6800+129.8185/+30.6821+129.8000/+30.6800+129.7890/+30.6780+129.7800/+30.6781+129.7600/+30.6791+129.7400/+30.6800+129.7309/+30.6813+129.7200/+30.6845+129.7000/+30.6965+129.6800/+30.7000+129.6762/+30.7025+129.6800/+30.7148+129.7000/+30.7200+129.7112/+30.7245+129.7200/+30.7364+129.7400/+30.7400+129.7446/+30.7500+129.7600/+30.7600+129.7740/+30.7626+129.7800/+30.7653+129.8000/+30.7754+129.8200/+30.7800+129.8332/+30.7820+129.8400/+30.7857+129.8600/+30.7885+129.8800/+30.7851+129.9000/+30.7883+129.9200/+30.7949+129.9400/+30.7987+129.9600/+30.8000+129.9705/+30.8017+129.9800/ 西 60 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8149+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3149/+30.7651+130.3000/+30.7692+130.2800/+30.7800+130.2653/+30.8000+130.2626/+30.8149+130.2800/ 西 3 鹿児島県三島村 4630300 2026-08-04T03:00:00+09:00 2026-08-04T06:00:00+09:00 降灰 70 +30.8146+130.2400/+30.8194+130.2600/+30.8199+130.2800/+30.8199+130.3000/+30.8134+130.3200/+30.8000+130.3334/+30.7800+130.3291/+30.7709+130.3200/+30.7601+130.3000/+30.7600+130.2976/+30.7424+130.2800/+30.7403+130.2600/+30.7400+130.2400/+30.7400+130.2399/+30.7224+130.2200/+30.7207+130.2000/+30.7200+130.1898/+30.7112+130.1800/+30.7034+130.1600/+30.7010+130.1400/+30.7000+130.1328/+30.6908+130.1200/+30.6847+130.1000/+30.6821+130.0800/+30.6800+130.0692/+30.6738+130.0600/+30.6653+130.0400/+30.6604+130.0200/+30.6600+130.0170/+30.6519+130.0000/+30.6457+129.9800/+30.6418+129.9600/+30.6400+129.9496/+30.6375+129.9400/+30.6299+129.9200/+30.6245+129.9000/+30.6200+129.8809/+30.6198+129.8800/+30.6186+129.8600/+30.6172+129.8400/+30.6197+129.8200/+30.6200+129.8154/+30.6211+129.8000/+30.6262+129.7800/+30.6359+129.7600/+30.6400+129.7545/+30.6521+129.7600/+30.6600+129.7627/+30.6697+129.7800/+30.6800+129.7897/+30.6871+129.8000/+30.6969+129.8200/+30.7000+129.8271/+30.7053+129.8400/+30.7136+129.8600/+30.7194+129.8800/+30.7200+129.8821/+30.7277+129.9000/+30.7354+129.9200/+30.7400+129.9304/+30.7442+129.9400/+30.7509+129.9600/+30.7556+129.9800/+30.7559+130.0000/+30.7569+130.0200/+30.7591+130.0400/+30.7600+130.0501/+30.7632+130.0600/+30.7729+130.0800/+30.7763+130.1000/+30.7792+130.1200/+30.7800+130.1292/+30.7859+130.1400/+30.7951+130.1600/+30.7983+130.1800/+30.7994+130.2000/+30.7999+130.2200/+30.8000+130.2222/+30.8146+130.2400/ 西 50 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8137+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3162/+30.7638+130.3000/+30.7667+130.2800/+30.7800+130.2637/+30.8000+130.2662/+30.8137+130.2800/ 西 3 鹿児島県三島村 4630300 2026-08-04T06:00:00+09:00 2026-08-04T09:00:00+09:00 降灰 70 +30.8180+130.2600/+30.8199+130.2800/+30.8199+130.3000/+30.8000+130.3200/+30.7800+130.3200/+30.7601+130.3000/+30.7600+130.2983/+30.7417+130.2800/+30.7402+130.2600/+30.7400+130.2426/+30.7374+130.2400/+30.7212+130.2200/+30.7203+130.2000/+30.7200+130.1960/+30.7053+130.1800/+30.7012+130.1600/+30.7000+130.1474/+30.6934+130.1400/+30.6836+130.1200/+30.6806+130.1000/+30.6800+130.0967/+30.6684+130.0800/+30.6621+130.0600/+30.6600+130.0499/+30.6480+130.0400/+30.6400+130.0282/+30.6361+130.0200/+30.6288+130.0000/+30.6232+129.9800/+30.6200+129.9692/+30.6155+129.9600/+30.6084+129.9400/+30.6045+129.9200/+30.6005+129.9000/+30.6000+129.8980/+30.5901+129.8800/+30.5816+129.8600/+30.5800+129.8559/+30.5729+129.8400/+30.5689+129.8200/+30.5641+129.8000/+30.5610+129.7800/+30.5600+129.7757/+30.5554+129.7600/+30.5528+129.7400/+30.5559+129.7200/+30.5600+129.7060/+30.5800+129.7150/+30.6000+129.7166/+30.6025+129.7200/+30.6142+129.7400/+30.6200+129.7540/+30.6223+129.7600/+30.6300+129.7800/+30.6380+129.8000/+30.6400+129.8016/+30.6557+129.8200/+30.6600+129.8297/+30.6636+129.8400/+30.6705+129.8600/+30.6758+129.8800/+30.6800+129.8868/+30.6930+129.9000/+30.6943+129.9200/+30.7000+129.9299/+30.7063+129.9400/+30.7129+129.9600/+30.7165+129.9800/+30.7200+129.9942/+30.7237+130.0000/+30.7257+130.0200/+30.7347+130.0400/+30.7384+130.0600/+30.7400+130.0691/+30.7487+130.0800/+30.7569+130.1000/+30.7591+130.1200/+30.7600+130.1266/+30.7717+130.1400/+30.7782+130.1600/+30.7795+130.1800/+30.7800+130.1860/+30.7934+130.2000/+30.7994+130.2200/+30.7999+130.2400/+30.8000+130.2420/+30.8180+130.2600/ 南西 60 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8132+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7800+130.3176/+30.7624+130.3000/+30.7661+130.2800/+30.7800+130.2628/+30.8000+130.2668/+30.8132+130.2800/ 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、３日２１時から２４時までは火口から西方向に降灰が予想されます。 　３日１５時から４日９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 　０３日１５時から１８時まで　西　　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　０３日１８時から２１時まで　南西　　　　　　７０ｋｍ　　３ｋｍ　　　　　 　０３日２１時から２４時まで　西　　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　０４日００時から０３時まで　西　　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　０４日０３時から０６時まで　西　　　　　　　５０ｋｍ　　３ｋｍ　　　　　 　０４日０６時から０９時まで　南西　　　　　　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 　 　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。