2026-07-04T08:00:00Z 通常 気象庁本庁 気象庁 2026-07-04T17:00:00+09:00 2026-07-04T18:00:00+09:00 2026-07-05T12:00:00+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 2026-07-04T18:00:00+09:00 2026-07-04T21:00:00+09:00 降灰 70 +30.9206+130.8200/+30.9207+130.8400/+30.9202+130.8600/+30.9200+130.8638/+30.9190+130.8800/+30.9177+130.9000/+30.9166+130.9200/+30.9154+130.9400/+30.9150+130.9600/+30.9157+130.9800/+30.9163+131.0000/+30.9160+131.0200/+30.9156+131.0400/+30.9144+131.0600/+30.9118+131.0800/+30.9087+131.1000/+30.9041+131.1200/+30.9000+131.1347/+30.8957+131.1200/+30.8904+131.1000/+30.8861+131.0800/+30.8822+131.0600/+30.8800+131.0468/+30.8789+131.0400/+30.8755+131.0200/+30.8715+131.0000/+30.8702+130.9800/+30.8686+130.9600/+30.8625+130.9400/+30.8600+130.9357/+30.8531+130.9200/+30.8448+130.9000/+30.8400+130.8910/+30.8367+130.8800/+30.8318+130.8600/+30.8275+130.8400/+30.8341+130.8200/+30.8285+130.8000/+30.8243+130.7800/+30.8212+130.7600/+30.8200+130.7547/+30.8173+130.7400/+30.8200+130.7316/+30.8228+130.7200/+30.8200+130.7004/+30.8199+130.7000/+30.8150+130.6800/+30.8113+130.6600/+30.8087+130.6400/+30.8063+130.6200/+30.8200+130.6045/+30.8210+130.6000/+30.8205+130.5800/+30.8200+130.5738/+30.8113+130.5600/+30.8055+130.5400/+30.8027+130.5200/+30.8012+130.5000/+30.8006+130.4800/+30.8003+130.4600/+30.8000+130.4536/+30.7884+130.4400/+30.7814+130.4200/+30.7804+130.4000/+30.7801+130.3800/+30.7800+130.3600/+30.7800+130.3591/+30.7611+130.3400/+30.7602+130.3200/+30.7614+130.3000/+30.7800+130.2814/+30.8000+130.2805/+30.8195+130.3000/+30.8200+130.3106/+30.8294+130.3200/+30.8397+130.3400/+30.8399+130.3600/+30.8399+130.3800/+30.8400+130.3921/+30.8477+130.4000/+30.8580+130.4200/+30.8591+130.4400/+30.8594+130.4600/+30.8598+130.4800/+30.8600+130.4837/+30.8716+130.5000/+30.8759+130.5200/+30.8773+130.5400/+30.8780+130.5600/+30.8789+130.5800/+30.8796+130.6000/+30.8800+130.6012/+30.8959+130.6200/+30.8962+130.6400/+30.8969+130.6600/+30.8973+130.6800/+30.8972+130.7000/+30.9000+130.7065/+30.9110+130.7200/+30.9113+130.7400/+30.9116+130.7600/+30.9109+130.7800/+30.9100+130.8000/+30.9200+130.8195/+30.9206+130.8200/ 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/+30.8073+130.3400/+30.8000+130.3508/+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 2026-07-04T21:00:00+09:00 2026-07-05T00:00:00+09:00 降灰 70 +30.9088+130.7200/+30.9088+130.7400/+30.9088+130.7600/+30.9080+130.7800/+30.9070+130.8000/+30.9114+130.8200/+30.9120+130.8400/+30.9130+130.8600/+30.9143+130.8800/+30.9155+130.9000/+30.9161+130.9200/+30.9167+130.9400/+30.9165+130.9600/+30.9154+130.9800/+30.9142+131.0000/+30.9135+131.0200/+30.9128+131.0400/+30.9116+131.0600/+30.9099+131.0800/+30.9079+131.1000/+30.9007+131.1200/+30.9000+131.1217/+30.8993+131.1200/+30.8921+131.1000/+30.8892+131.0800/+30.8864+131.0600/+30.8836+131.0400/+30.8806+131.0200/+30.8800+131.0160/+30.8773+131.0000/+30.8685+130.9800/+30.8600+130.9660/+30.8568+130.9600/+30.8478+130.9400/+30.8400+130.9200/+30.8358+130.9000/+30.8327+130.8800/+30.8300+130.8600/+30.8263+130.8400/+30.8276+130.8200/+30.8226+130.8000/+30.8200+130.7893/+30.8182+130.7800/+30.8152+130.7600/+30.8124+130.7400/+30.8158+130.7200/+30.8124+130.7000/+30.8101+130.6800/+30.8076+130.6600/+30.8054+130.6400/+30.8033+130.6200/+30.8094+130.6000/+30.8058+130.5800/+30.8035+130.5600/+30.8019+130.5400/+30.8010+130.5200/+30.8004+130.5000/+30.8000+130.4846/+30.7972+130.4800/+30.7854+130.4600/+30.7817+130.4400/+30.7806+130.4200/+30.7802+130.4000/+30.7801+130.3800/+30.7800+130.3733/+30.7670+130.3600/+30.7604+130.3400/+30.7602+130.3200/+30.7611+130.3000/+30.7800+130.2811/+30.8000+130.2804/+30.8195+130.3000/+30.8200+130.3200/+30.8200+130.3206/+30.8392+130.3400/+30.8398+130.3600/+30.8398+130.3800/+30.8399+130.4000/+30.8400+130.4079/+30.8512+130.4200/+30.8577+130.4400/+30.8588+130.4600/+30.8592+130.4800/+30.8596+130.5000/+30.8600+130.5143/+30.8637+130.5200/+30.8728+130.5400/+30.8762+130.5600/+30.8768+130.5800/+30.8779+130.6000/+30.8800+130.6059/+30.8929+130.6200/+30.8938+130.6400/+30.8946+130.6600/+30.8953+130.6800/+30.8960+130.7000/+30.9000+130.7097/+30.9088+130.7200/ 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/+30.8081+130.3400/+30.8000+130.3518/+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 2026-07-05T00:00:00+09:00 2026-07-05T03:00:00+09:00 降灰 70 +30.9053+130.7200/+30.9044+130.7400/+30.9034+130.7600/+30.9031+130.7800/+30.9027+130.8000/+30.9000+130.8128/+30.8973+130.8200/+30.8963+130.8400/+30.8947+130.8600/+30.8925+130.8800/+30.8897+130.9000/+30.8870+130.9200/+30.8831+130.9400/+30.8800+130.9504/+30.8766+130.9600/+30.8677+130.9800/+30.8600+130.9947/+30.8484+130.9800/+30.8400+130.9677/+30.8386+130.9600/+30.8350+130.9400/+30.8315+130.9200/+30.8285+130.9000/+30.8257+130.8800/+30.8234+130.8600/+30.8209+130.8400/+30.8200+130.8338/+30.8183+130.8200/+30.8163+130.8000/+30.8138+130.7800/+30.8120+130.7600/+30.8110+130.7400/+30.8125+130.7200/+30.8101+130.7000/+30.8073+130.6800/+30.8054+130.6600/+30.8041+130.6400/+30.8015+130.6200/+30.8055+130.6000/+30.8040+130.5800/+30.8027+130.5600/+30.8016+130.5400/+30.8009+130.5200/+30.8003+130.5000/+30.8000+130.4943/+30.7912+130.4800/+30.7846+130.4600/+30.7819+130.4400/+30.7807+130.4200/+30.7803+130.4000/+30.7801+130.3800/+30.7800+130.3727/+30.7677+130.3600/+30.7605+130.3400/+30.7602+130.3200/+30.7609+130.3000/+30.7800+130.2809/+30.8000+130.2804/+30.8196+130.3000/+30.8200+130.3098/+30.8302+130.3200/+30.8396+130.3400/+30.8398+130.3600/+30.8399+130.3800/+30.8400+130.3866/+30.8524+130.4000/+30.8578+130.4200/+30.8588+130.4400/+30.8594+130.4600/+30.8599+130.4800/+30.8600+130.4813/+30.8706+130.5000/+30.8755+130.5200/+30.8770+130.5400/+30.8780+130.5600/+30.8790+130.5800/+30.8800+130.5975/+30.8810+130.6000/+30.8934+130.6200/+30.8937+130.6400/+30.8936+130.6600/+30.8939+130.6800/+30.8947+130.7000/+30.9000+130.7129/+30.9053+130.7200/ 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/+30.8049+130.3400/+30.8000+130.3470/+30.7951+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+130.8000/+30.9650+130.8200/+30.9662+130.8400/+30.9658+130.8600/+30.9637+130.8800/+30.9612+130.9000/+30.9600+130.9098/+30.9544+130.9200/+30.9400+130.9382/+30.9325+130.9200/+30.9236+130.9000/+30.9200+130.8953/+30.9047+130.8800/+30.9000+130.8763/+30.8929+130.8600/+30.8853+130.8400/+30.8800+130.8237/+30.8791+130.8200/+30.8800+130.8178/+30.8851+130.8000/+30.8810+130.7800/+30.8800+130.7756/+30.8739+130.7600/+30.8631+130.7400/+30.8600+130.7305/+30.8574+130.7200/+30.8600+130.7087/+30.8612+130.7000/+30.8600+130.6957/+30.8539+130.6800/+30.8486+130.6600/+30.8455+130.6400/+30.8431+130.6200/+30.8438+130.6000/+30.8419+130.5800/+30.8403+130.5600/+30.8400+130.5577/+30.8275+130.5400/+30.8231+130.5200/+30.8211+130.5000/+30.8201+130.4800/+30.8200+130.4792/+30.8045+130.4600/+30.8010+130.4400/+30.8003+130.4200/+30.8000+130.4158/+30.7856+130.4000/+30.7806+130.3800/+30.7801+130.3600/+30.7800+130.3570/+30.7632+130.3400/+30.7603+130.3200/+30.7609+130.3000/+30.7800+130.2809/+30.8000+130.2803/+30.8197+130.3000/+30.8200+130.3008/+30.8392+130.3200/+30.8399+130.3400/+30.8400+130.3557/+30.8443+130.3600/+30.8589+130.3800/+30.8597+130.4000/+30.8600+130.4095/+30.8701+130.4200/+30.8778+130.4400/+30.8793+130.4600/+30.8800+130.4703/+30.8878+130.4800/+30.8951+130.5000/+30.8982+130.5200/+30.8996+130.5400/+30.9000+130.5428/+30.9117+130.5600/+30.9158+130.5800/+30.9200+130.5881/+30.9317+130.6000/+30.9336+130.6200/+30.9350+130.6400/+30.9376+130.6600/+30.9400+130.6777/+30.9407+130.6800/+30.9497+130.7000/+30.9509+130.7200/+30.9514+130.7400/+30.9521+130.7600/+30.9530+130.7800/+30.9600+130.7961/+30.9638+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/+30.8038+130.3400/+30.8000+130.3442/+30.7972+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 2026-07-05T06:00:00+09:00 2026-07-05T09:00:00+09:00 降灰 70 +30.9607+130.8200/+30.9628+130.8400/+30.9637+130.8600/+30.9635+130.8800/+30.9633+130.9000/+30.9606+130.9200/+30.9600+130.9244/+30.9522+130.9400/+30.9400+130.9580/+30.9287+130.9400/+30.9200+130.9288/+30.9123+130.9200/+30.9000+130.9079/+30.8975+130.9000/+30.8892+130.8800/+30.8832+130.8600/+30.8800+130.8479/+30.8782+130.8400/+30.8742+130.8200/+30.8768+130.8000/+30.8682+130.7800/+30.8627+130.7600/+30.8600+130.7537/+30.8557+130.7400/+30.8522+130.7200/+30.8530+130.7000/+30.8482+130.6800/+30.8454+130.6600/+30.8436+130.6400/+30.8418+130.6200/+30.8423+130.6000/+30.8402+130.5800/+30.8400+130.5782/+30.8291+130.5600/+30.8240+130.5400/+30.8216+130.5200/+30.8204+130.5000/+30.8200+130.4960/+30.8072+130.4800/+30.8017+130.4600/+30.8005+130.4400/+30.8001+130.4200/+30.8000+130.4193/+30.7827+130.4000/+30.7803+130.3800/+30.7801+130.3600/+30.7800+130.3538/+30.7664+130.3400/+30.7603+130.3200/+30.7610+130.3000/+30.7800+130.2810/+30.8000+130.2803/+30.8197+130.3000/+30.8200+130.3019/+30.8381+130.3200/+30.8398+130.3400/+30.8399+130.3600/+30.8400+130.3670/+30.8530+130.3800/+30.8592+130.4000/+30.8597+130.4200/+30.8600+130.4355/+30.8644+130.4400/+30.8775+130.4600/+30.8790+130.4800/+30.8798+130.5000/+30.8800+130.5017/+30.8941+130.5200/+30.8976+130.5400/+30.8990+130.5600/+30.9000+130.5707/+30.9067+130.5800/+30.9200+130.5943/+30.9258+130.6000/+30.9293+130.6200/+30.9320+130.6400/+30.9345+130.6600/+30.9368+130.6800/+30.9400+130.6873/+30.9476+130.7000/+30.9489+130.7200/+30.9492+130.7400/+30.9495+130.7600/+30.9508+130.7800/+30.9590+130.8000/+30.9600+130.8136/+30.9607+130.8200/ 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/+30.8049+130.3400/+30.8000+130.3460/+30.7959+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 +30.9652+130.8000/+30.9679+130.8200/+30.9704+130.8400/+30.9722+130.8600/+30.9737+130.8800/+30.9751+130.9000/+30.9749+130.9200/+30.9747+130.9400/+30.9742+130.9600/+30.9733+130.9800/+30.9718+131.0000/+30.9631+131.0200/+30.9600+131.0247/+30.9523+131.0200/+30.9400+131.0131/+30.9354+131.0000/+30.9308+130.9800/+30.9264+130.9600/+30.9223+130.9400/+30.9200+130.9290/+30.9180+130.9200/+30.9132+130.9000/+30.9027+130.8800/+30.9000+130.8764/+30.8914+130.8600/+30.8832+130.8400/+30.8800+130.8307/+30.8773+130.8200/+30.8800+130.8133/+30.8838+130.8000/+30.8800+130.7895/+30.8733+130.7800/+30.8647+130.7600/+30.8600+130.7496/+30.8570+130.7400/+30.8530+130.7200/+30.8547+130.7000/+30.8488+130.6800/+30.8455+130.6600/+30.8435+130.6400/+30.8412+130.6200/+30.8411+130.6000/+30.8400+130.5882/+30.8356+130.5800/+30.8263+130.5600/+30.8225+130.5400/+30.8208+130.5200/+30.8200+130.5056/+30.8161+130.5000/+30.8048+130.4800/+30.8012+130.4600/+30.8003+130.4400/+30.8000+130.4320/+30.7896+130.4200/+30.7814+130.4000/+30.7802+130.3800/+30.7801+130.3600/+30.7800+130.3574/+30.7628+130.3400/+30.7603+130.3200/+30.7612+130.3000/+30.7800+130.2812/+30.8000+130.2804/+30.8196+130.3000/+30.8200+130.3031/+30.8369+130.3200/+30.8398+130.3400/+30.8399+130.3600/+30.8400+130.3719/+30.8481+130.3800/+30.8590+130.4000/+30.8596+130.4200/+30.8599+130.4400/+30.8600+130.4420/+30.8760+130.4600/+30.8787+130.4800/+30.8794+130.5000/+30.8800+130.5121/+30.8867+130.5200/+30.8958+130.5400/+30.8981+130.5600/+30.8993+130.5800/+30.9000+130.5828/+30.9200+130.5961/+30.9239+130.6000/+30.9290+130.6200/+30.9317+130.6400/+30.9339+130.6600/+30.9358+130.6800/+30.9400+130.6885/+30.9482+130.7000/+30.9498+130.7200/+30.9510+130.7400/+30.9523+130.7600/+30.9533+130.7800/+30.9600+130.7954/+30.9652+130.8000/ 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/+30.8075+130.3400/+30.8000+130.3504/+30.7932+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 　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１８時から５日１２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１８時から２１時まで　東　　　　　　　８０ｋｍ　　３ｋｍ　　　　　 　０４日２１時から２４時まで　東　　　　　　　８０ｋｍ　　３ｋｍ　　　　　 　０５日００時から０３時まで　東　　　　　　　６０ｋｍ　　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　　　　　 　 　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。