2026-08-23T17:00:00Z 通常 気象庁本庁 気象庁 2026-08-24T02:00:00+09:00 2026-08-24T03:00:00+09:00 2026-08-24T21:00:00+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、２４日０９時から１２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 2026-08-24T03:00:00+09:00 2026-08-24T06:00:00+09:00 降灰 70 +30.8601+129.7600/+30.8642+129.7800/+30.8657+129.8000/+30.8648+129.8200/+30.8641+129.8400/+30.8652+129.8600/+30.8660+129.8800/+30.8635+129.9000/+30.8619+129.9200/+30.8623+129.9400/+30.8619+129.9600/+30.8607+129.9800/+30.8600+129.9900/+30.8595+130.0000/+30.8498+130.0200/+30.8437+130.0400/+30.8400+130.0490/+30.8394+130.0600/+30.8389+130.0800/+30.8384+130.1000/+30.8383+130.1200/+30.8380+130.1400/+30.8380+130.1600/+30.8378+130.1800/+30.8370+130.2000/+30.8360+130.2200/+30.8315+130.2400/+30.8200+130.2539/+30.8200+130.2600/+30.8200+130.2800/+30.8199+130.3000/+30.8126+130.3200/+30.8000+130.3326/+30.7800+130.3251/+30.7749+130.3200/+30.7601+130.3000/+30.7601+130.2800/+30.7601+130.2600/+30.7603+130.2400/+30.7606+130.2200/+30.7610+130.2000/+30.7616+130.1800/+30.7623+130.1600/+30.7638+130.1400/+30.7649+130.1200/+30.7656+130.1000/+30.7673+130.0800/+30.7712+130.0600/+30.7728+130.0400/+30.7784+130.0200/+30.7763+130.0000/+30.7699+129.9800/+30.7782+129.9600/+30.7800+129.9557/+30.7820+129.9400/+30.7849+129.9200/+30.7874+129.9000/+30.7849+129.8800/+30.7888+129.8600/+30.7939+129.8400/+30.8000+129.8230/+30.8015+129.8200/+30.8101+129.8000/+30.8200+129.7850/+30.8260+129.7800/+30.8353+129.7600/+30.8400+129.7488/+30.8600+129.7596/+30.8601+129.7600/ 西 50 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8119+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.7862+130.2800/+30.8000+130.2658/+30.8119+130.2800/ 北西 3 鹿児島県三島村 4630300 2026-08-24T06:00:00+09:00 2026-08-24T09:00:00+09:00 降灰 70 +30.8025+129.9600/+30.8062+129.9800/+30.8000+129.9874/+30.7964+130.0000/+30.7978+130.0200/+30.7985+130.0400/+30.7993+130.0600/+30.7997+130.0800/+30.8000+130.0919/+30.8024+130.1000/+30.8086+130.1200/+30.8138+130.1400/+30.8160+130.1600/+30.8176+130.1800/+30.8188+130.2000/+30.8195+130.2200/+30.8198+130.2400/+30.8199+130.2600/+30.8200+130.2800/+30.8199+130.3000/+30.8101+130.3200/+30.8000+130.3301/+30.7800+130.3228/+30.7772+130.3200/+30.7601+130.3000/+30.7600+130.2800/+30.7601+130.2600/+30.7600+130.2400/+30.7600+130.2359/+30.7465+130.2200/+30.7426+130.2000/+30.7415+130.1800/+30.7413+130.1600/+30.7409+130.1400/+30.7406+130.1200/+30.7400+130.1000/+30.7400+130.0998/+30.7299+130.0800/+30.7273+130.0600/+30.7252+130.0400/+30.7240+130.0200/+30.7214+130.0000/+30.7207+129.9800/+30.7201+129.9600/+30.7200+129.9565/+30.7175+129.9400/+30.7152+129.9200/+30.7091+129.9000/+30.7073+129.8800/+30.7072+129.8600/+30.7070+129.8400/+30.7092+129.8200/+30.7118+129.8000/+30.7200+129.7805/+30.7203+129.7800/+30.7226+129.7600/+30.7270+129.7400/+30.7351+129.7200/+30.7400+129.7107/+30.7600+129.7175/+30.7609+129.7200/+30.7671+129.7400/+30.7712+129.7600/+30.7741+129.7800/+30.7788+129.8000/+30.7800+129.8055/+30.7825+129.8200/+30.7853+129.8400/+30.7876+129.8600/+30.7894+129.8800/+30.7904+129.9000/+30.7944+129.9200/+30.7985+129.9400/+30.8000+129.9495/+30.8025+129.9600/ 西 60 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8122+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7801+130.3000/+30.7800+130.2936/+30.7764+130.2800/+30.7800+130.2744/+30.8000+130.2650/+30.8122+130.2800/ 西 3 鹿児島県三島村 4630300 2026-08-24T09:00:00+09:00 2026-08-24T12:00:00+09:00 降灰 70 +30.8225+129.7200/+30.8265+129.7400/+30.8288+129.7600/+30.8302+129.7800/+30.8280+129.8000/+30.8282+129.8200/+30.8284+129.8400/+30.8287+129.8600/+30.8289+129.8800/+30.8264+129.9000/+30.8271+129.9200/+30.8271+129.9400/+30.8275+129.9600/+30.8283+129.9800/+30.8200+129.9917/+30.8178+130.0000/+30.8174+130.0200/+30.8179+130.0400/+30.8178+130.0600/+30.8180+130.0800/+30.8179+130.1000/+30.8184+130.1200/+30.8188+130.1400/+30.8191+130.1600/+30.8194+130.1800/+30.8196+130.2000/+30.8198+130.2200/+30.8199+130.2400/+30.8199+130.2600/+30.8200+130.2800/+30.8199+130.3000/+30.8000+130.3200/+30.7800+130.3199/+30.7601+130.3000/+30.7601+130.2800/+30.7601+130.2600/+30.7601+130.2400/+30.7601+130.2200/+30.7601+130.2000/+30.7600+130.1837/+30.7574+130.1800/+30.7492+130.1600/+30.7461+130.1400/+30.7449+130.1200/+30.7444+130.1000/+30.7440+130.0800/+30.7437+130.0600/+30.7436+130.0400/+30.7435+130.0200/+30.7438+130.0000/+30.7400+129.9865/+30.7342+129.9800/+30.7342+129.9600/+30.7352+129.9400/+30.7379+129.9200/+30.7400+129.9048/+30.7405+129.9000/+30.7400+129.8970/+30.7364+129.8800/+30.7382+129.8600/+30.7400+129.8425/+30.7403+129.8400/+30.7415+129.8200/+30.7428+129.8000/+30.7497+129.7800/+30.7563+129.7600/+30.7600+129.7485/+30.7628+129.7400/+30.7695+129.7200/+30.7787+129.7000/+30.7800+129.6974/+30.7892+129.6800/+30.8000+129.6614/+30.8095+129.6800/+30.8165+129.7000/+30.8200+129.7107/+30.8225+129.7200/ 西 60 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8136+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.7800+130.2861/+30.7739+130.2800/+30.7800+130.2691/+30.8000+130.2622/+30.8136+130.2800/ 西 3 鹿児島県三島村 4630300 2026-08-24T12:00:00+09:00 2026-08-24T15:00:00+09:00 降灰 70 +30.8211+129.6600/+30.8258+129.6800/+30.8293+129.7000/+30.8305+129.7200/+30.8315+129.7400/+30.8328+129.7600/+30.8343+129.7800/+30.8313+129.8000/+30.8318+129.8200/+30.8322+129.8400/+30.8321+129.8600/+30.8319+129.8800/+30.8306+129.9000/+30.8322+129.9200/+30.8337+129.9400/+30.8345+129.9600/+30.8348+129.9800/+30.8200+129.9989/+30.8197+130.0000/+30.8196+130.0200/+30.8196+130.0400/+30.8194+130.0600/+30.8195+130.0800/+30.8196+130.1000/+30.8196+130.1200/+30.8196+130.1400/+30.8197+130.1600/+30.8197+130.1800/+30.8198+130.2000/+30.8199+130.2200/+30.8199+130.2400/+30.8199+130.2600/+30.8200+130.2800/+30.8199+130.3000/+30.8000+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/+30.7603+130.1800/+30.7604+130.1600/+30.7604+130.1400/+30.7604+130.1200/+30.7603+130.1000/+30.7602+130.0800/+30.7603+130.0600/+30.7600+130.0400/+30.7600+130.0385/+30.7578+130.0200/+30.7595+130.0000/+30.7439+129.9800/+30.7440+129.9600/+30.7442+129.9400/+30.7448+129.9200/+30.7459+129.9000/+30.7400+129.8815/+30.7392+129.8800/+30.7400+129.8607/+30.7400+129.8600/+30.7410+129.8400/+30.7421+129.8200/+30.7432+129.8000/+30.7462+129.7800/+30.7496+129.7600/+30.7534+129.7400/+30.7574+129.7200/+30.7600+129.7086/+30.7617+129.7000/+30.7657+129.6800/+30.7713+129.6600/+30.7765+129.6400/+30.7795+129.6200/+30.7800+129.6164/+30.7825+129.6000/+30.7929+129.5800/+30.8000+129.5686/+30.8062+129.5800/+30.8144+129.6000/+30.8160+129.6200/+30.8175+129.6400/+30.8200+129.6533/+30.8211+129.6600/ 西 70 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8145+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.7801+130.2800/+30.8000+130.2621/+30.8145+130.2800/ 北西 3 鹿児島県三島村 4630300 2026-08-24T15:00:00+09:00 2026-08-24T18:00:00+09:00 降灰 70 +30.8620+129.6000/+30.8654+129.6200/+30.8681+129.6400/+30.8689+129.6600/+30.8683+129.6800/+30.8678+129.7000/+30.8682+129.7200/+30.8686+129.7400/+30.8687+129.7600/+30.8685+129.7800/+30.8638+129.8000/+30.8629+129.8200/+30.8619+129.8400/+30.8608+129.8600/+30.8600+129.8725/+30.8595+129.8800/+30.8527+129.9000/+30.8516+129.9200/+30.8527+129.9400/+30.8503+129.9600/+30.8400+129.9799/+30.8400+129.9800/+30.8374+130.0000/+30.8368+130.0200/+30.8365+130.0400/+30.8363+130.0600/+30.8358+130.0800/+30.8350+130.1000/+30.8342+130.1200/+30.8340+130.1400/+30.8327+130.1600/+30.8300+130.1800/+30.8217+130.2000/+30.8200+130.2027/+30.8199+130.2200/+30.8199+130.2400/+30.8199+130.2600/+30.8200+130.2800/+30.8199+130.3000/+30.8000+130.3199/+30.7800+130.3198/+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/+30.7606+130.1600/+30.7607+130.1400/+30.7607+130.1200/+30.7608+130.1000/+30.7608+130.0800/+30.7607+130.0600/+30.7609+130.0400/+30.7607+130.0200/+30.7615+130.0000/+30.7600+129.9942/+30.7482+129.9800/+30.7495+129.9600/+30.7515+129.9400/+30.7549+129.9200/+30.7574+129.9000/+30.7600+129.8928/+30.7627+129.8800/+30.7640+129.8600/+30.7655+129.8400/+30.7675+129.8200/+30.7700+129.8000/+30.7691+129.7800/+30.7730+129.7600/+30.7773+129.7400/+30.7800+129.7274/+30.7818+129.7200/+30.7877+129.7000/+30.7953+129.6800/+30.8000+129.6701/+30.8084+129.6600/+30.8182+129.6400/+30.8200+129.6356/+30.8261+129.6200/+30.8338+129.6000/+30.8399+129.5800/+30.8400+129.5796/+30.8412+129.5800/+30.8600+129.5880/+30.8620+129.6000/ 西 70 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8148+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.7835+130.2800/+30.8000+130.2619/+30.8148+130.2800/ 北西 3 鹿児島県三島村 4630300 2026-08-24T18:00:00+09:00 2026-08-24T21:00:00+09:00 降灰 70 +30.8619+129.6400/+30.8636+129.6600/+30.8653+129.6800/+30.8666+129.7000/+30.8659+129.7200/+30.8652+129.7400/+30.8652+129.7600/+30.8657+129.7800/+30.8630+129.8000/+30.8610+129.8200/+30.8600+129.8300/+30.8589+129.8400/+30.8592+129.8600/+30.8594+129.8800/+30.8525+129.9000/+30.8518+129.9200/+30.8499+129.9400/+30.8470+129.9600/+30.8420+129.9800/+30.8400+129.9819/+30.8372+130.0000/+30.8360+130.0200/+30.8353+130.0400/+30.8353+130.0600/+30.8347+130.0800/+30.8343+130.1000/+30.8339+130.1200/+30.8316+130.1400/+30.8282+130.1600/+30.8252+130.1800/+30.8200+130.1887/+30.8199+130.2000/+30.8199+130.2200/+30.8199+130.2400/+30.8199+130.2600/+30.8200+130.2800/+30.8199+130.3000/+30.8000+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/+30.7603+130.1800/+30.7604+130.1600/+30.7604+130.1400/+30.7603+130.1200/+30.7600+130.1000/+30.7600+130.0983/+30.7566+130.0800/+30.7555+130.0600/+30.7556+130.0400/+30.7567+130.0200/+30.7562+130.0000/+30.7466+129.9800/+30.7478+129.9600/+30.7501+129.9400/+30.7544+129.9200/+30.7568+129.9000/+30.7600+129.8834/+30.7605+129.8800/+30.7637+129.8600/+30.7679+129.8400/+30.7696+129.8200/+30.7714+129.8000/+30.7713+129.7800/+30.7749+129.7600/+30.7795+129.7400/+30.7800+129.7379/+30.7849+129.7200/+30.7916+129.7000/+30.8000+129.6808/+30.8010+129.6800/+30.8194+129.6600/+30.8200+129.6590/+30.8293+129.6400/+30.8357+129.6200/+30.8400+129.6052/+30.8593+129.6200/+30.8600+129.6210/+30.8619+129.6400/ 西 70 鹿児島県三島村 4630300 小さな噴石の落下 75 1 +30.8142+130.2800/+30.8188+130.3000/+30.8000+130.3188/+30.7812+130.3000/+30.7835+130.2800/+30.8000+130.2625/+30.8142+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、２４日０９時から１２時までは火口から西方向に降灰が予想されます。 　２４日３時から２４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 　２４日０３時から０６時まで　西　　　　　　　５０ｋｍ　　３ｋｍ　　　　　 　２４日０６時から０９時まで　西　　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　２４日０９時から１２時まで　西　　　　　　　６０ｋｍ　　３ｋｍ　　　　　 　２４日１２時から１５時まで　西　　　　　　　７０ｋｍ　　３ｋｍ　　　　　 　２４日１５時から１８時まで　西　　　　　　　７０ｋｍ　　３ｋｍ　　　　　 　２４日１８時から２１時まで　西　　　　　　　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 　 　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。