2026-07-09T17:00:00Z 通常 気象庁本庁 気象庁 2026-07-10T02:00:00+09:00 2026-07-10T03:00:00+09:00 2026-07-10T21:00:00+09:00 509 発表 1 降灰予報 1.1_0 　現在、口永良部島は噴火警戒レベル２（火口周辺規制）です。口永良部島で噴火が発生した場合には、１０日０９時から１２時までは火口から北西方向に降灰が予想されます。 降灰予報（定時） 06 口永良部島 509 降灰 70 鹿児島県屋久島町 4650500 小さな噴石の落下 75 鹿児島県屋久島町 4650500 降灰予報（定時） 06 口永良部島 509 +3026.60+13013.03+657/ 降灰 70 鹿児島県屋久島町 4650500 小さな噴石の落下 75 鹿児島県屋久島町 4650500 2026-07-10T03:00:00+09:00 2026-07-10T06:00:00+09:00 降灰 70 +30.5800+129.7600/+30.5800+129.7614/+30.5796+129.7800/+30.5793+129.8000/+30.5766+129.8200/+30.5695+129.8400/+30.5635+129.8600/+30.5600+129.8777/+30.5597+129.8800/+30.5574+129.9000/+30.5547+129.9200/+30.5400+129.9387/+30.5396+129.9400/+30.5363+129.9600/+30.5326+129.9800/+30.5294+130.0000/+30.5200+130.0183/+30.5198+130.0200/+30.5183+130.0400/+30.5165+130.0600/+30.5131+130.0800/+30.5000+130.0994/+30.4999+130.1000/+30.4988+130.1200/+30.4979+130.1400/+30.4946+130.1600/+30.4800+130.1768/+30.4800+130.1800/+30.4799+130.2000/+30.4799+130.2200/+30.4600+130.2399/+30.4400+130.2400/+30.4200+130.2200/+30.4200+130.2000/+30.4200+130.1800/+30.4201+130.1600/+30.4203+130.1400/+30.4210+130.1200/+30.4228+130.1000/+30.4264+130.0800/+30.4400+130.0611/+30.4403+130.0600/+30.4423+130.0400/+30.4468+130.0200/+30.4529+130.0000/+30.4600+129.9830/+30.4604+129.9800/+30.4643+129.9600/+30.4676+129.9400/+30.4766+129.9200/+30.4800+129.9020/+30.4802+129.9000/+30.4848+129.8800/+30.4911+129.8600/+30.4985+129.8400/+30.5000+129.8364/+30.5075+129.8200/+30.5117+129.8000/+30.5200+129.7852/+30.5247+129.7800/+30.5372+129.7600/+30.5400+129.7533/+30.5460+129.7400/+30.5566+129.7200/+30.5600+129.7167/+30.5673+129.7200/+30.5768+129.7400/+30.5800+129.7597/+30.5800+129.7600/ 西 50 鹿児島県屋久島町 4650500 小さな噴石の落下 75 1 +30.4714+130.2000/+30.4600+130.2114/+30.4588+130.2200/+30.4400+130.2388/+30.4212+130.2200/+30.4247+130.2000/+30.4400+130.1838/+30.4600+130.1873/+30.4714+130.2000/ 西 2 鹿児島県屋久島町 4650500 2026-07-10T06:00:00+09:00 2026-07-10T09:00:00+09:00 降灰 70 +30.6272+129.7400/+30.6319+129.7600/+30.6258+129.7800/+30.6234+129.8000/+30.6200+129.8158/+30.6191+129.8200/+30.6152+129.8400/+30.6043+129.8600/+30.6000+129.8665/+30.5958+129.8800/+30.5914+129.9000/+30.5854+129.9200/+30.5800+129.9368/+30.5793+129.9400/+30.5680+129.9600/+30.5600+129.9714/+30.5577+129.9800/+30.5522+130.0000/+30.5400+130.0196/+30.5399+130.0200/+30.5373+130.0400/+30.5331+130.0600/+30.5200+130.0782/+30.5198+130.0800/+30.5180+130.1000/+30.5141+130.1200/+30.5000+130.1354/+30.4996+130.1400/+30.4992+130.1600/+30.4972+130.1800/+30.4800+130.1973/+30.4800+130.2000/+30.4799+130.2200/+30.4600+130.2399/+30.4400+130.2400/+30.4200+130.2200/+30.4200+130.2000/+30.4201+130.1800/+30.4207+130.1600/+30.4235+130.1400/+30.4371+130.1200/+30.4400+130.1168/+30.4423+130.1000/+30.4463+130.0800/+30.4600+130.0612/+30.4603+130.0600/+30.4632+130.0400/+30.4701+130.0200/+30.4800+130.0059/+30.4819+130.0000/+30.4871+129.9800/+30.4931+129.9600/+30.5000+129.9442/+30.5011+129.9400/+30.5094+129.9200/+30.5107+129.9000/+30.5200+129.8821/+30.5209+129.8800/+30.5337+129.8600/+30.5400+129.8482/+30.5432+129.8400/+30.5502+129.8200/+30.5585+129.8000/+30.5600+129.7978/+30.5732+129.7800/+30.5800+129.7680/+30.5839+129.7600/+30.5946+129.7400/+30.6000+129.7310/+30.6200+129.7321/+30.6272+129.7400/ 西 50 鹿児島県屋久島町 4650500 小さな噴石の落下 75 1 +30.4710+130.2000/+30.4600+130.2110/+30.4588+130.2200/+30.4400+130.2388/+30.4212+130.2200/+30.4233+130.2000/+30.4400+130.1827/+30.4600+130.1876/+30.4710+130.2000/ 西 2 鹿児島県屋久島町 4650500 2026-07-10T09:00:00+09:00 2026-07-10T12:00:00+09:00 降灰 70 +30.6605+129.6800/+30.6673+129.7000/+30.6623+129.7200/+30.6600+129.7305/+30.6555+129.7400/+30.6538+129.7600/+30.6459+129.7800/+30.6400+129.7910/+30.6358+129.8000/+30.6295+129.8200/+30.6258+129.8400/+30.6200+129.8542/+30.6183+129.8600/+30.6137+129.8800/+30.6045+129.9000/+30.6000+129.9050/+30.5955+129.9200/+30.5912+129.9400/+30.5800+129.9525/+30.5766+129.9600/+30.5726+129.9800/+30.5600+129.9980/+30.5595+130.0000/+30.5568+130.0200/+30.5483+130.0400/+30.5400+130.0500/+30.5383+130.0600/+30.5359+130.0800/+30.5204+130.1000/+30.5200+130.1005/+30.5185+130.1200/+30.5126+130.1400/+30.5000+130.1529/+30.4996+130.1600/+30.4989+130.1800/+30.4800+130.1999/+30.4800+130.2000/+30.4799+130.2200/+30.4600+130.2399/+30.4400+130.2399/+30.4201+130.2200/+30.4200+130.2000/+30.4202+130.1800/+30.4210+130.1600/+30.4244+130.1400/+30.4400+130.1206/+30.4401+130.1200/+30.4426+130.1000/+30.4460+130.0800/+30.4600+130.0618/+30.4605+130.0600/+30.4637+130.0400/+30.4692+130.0200/+30.4800+130.0035/+30.4812+130.0000/+30.4871+129.9800/+30.4951+129.9600/+30.5000+129.9530/+30.5044+129.9400/+30.5139+129.9200/+30.5142+129.9000/+30.5200+129.8882/+30.5235+129.8800/+30.5371+129.8600/+30.5400+129.8555/+30.5456+129.8400/+30.5545+129.8200/+30.5600+129.8110/+30.5687+129.8000/+30.5763+129.7800/+30.5800+129.7718/+30.5861+129.7600/+30.5989+129.7400/+30.6000+129.7382/+30.6200+129.7231/+30.6250+129.7200/+30.6310+129.7000/+30.6400+129.6844/+30.6579+129.6800/+30.6600+129.6792/+30.6605+129.6800/ 北西 60 鹿児島県屋久島町 4650500 小さな噴石の落下 75 1 +30.4743+130.2000/+30.4648+130.2200/+30.4600+130.2248/+30.4400+130.2388/+30.4212+130.2200/+30.4230+130.2000/+30.4400+130.1827/+30.4600+130.1843/+30.4743+130.2000/ 北西 2 鹿児島県屋久島町 4650500 2026-07-10T12:00:00+09:00 2026-07-10T15:00:00+09:00 降灰 70 +30.7036+129.6400/+30.7087+129.6600/+30.7065+129.6800/+30.7049+129.7000/+30.7000+129.7103/+30.6857+129.7200/+30.6846+129.7400/+30.6825+129.7600/+30.6800+129.7685/+30.6775+129.7800/+30.6712+129.8000/+30.6658+129.8200/+30.6600+129.8396/+30.6599+129.8400/+30.6508+129.8600/+30.6400+129.8752/+30.6383+129.8800/+30.6307+129.9000/+30.6227+129.9200/+30.6200+129.9262/+30.6150+129.9400/+30.6000+129.9591/+30.5998+129.9600/+30.5903+129.9800/+30.5800+129.9924/+30.5780+130.0000/+30.5731+130.0200/+30.5600+130.0357/+30.5590+130.0400/+30.5551+130.0600/+30.5400+130.0782/+30.5396+130.0800/+30.5371+130.1000/+30.5200+130.1198/+30.5200+130.1200/+30.5186+130.1400/+30.5000+130.1596/+30.4999+130.1600/+30.4996+130.1800/+30.4962+130.2000/+30.4800+130.2162/+30.4799+130.2200/+30.4600+130.2399/+30.4400+130.2399/+30.4201+130.2200/+30.4200+130.2000/+30.4204+130.1800/+30.4258+130.1600/+30.4400+130.1437/+30.4404+130.1400/+30.4428+130.1200/+30.4539+130.1000/+30.4600+130.0928/+30.4625+130.0800/+30.4729+130.0600/+30.4800+130.0517/+30.4835+130.0400/+30.4909+130.0200/+30.5000+130.0079/+30.5022+130.0000/+30.5097+129.9800/+30.5200+129.9657/+30.5225+129.9600/+30.5312+129.9400/+30.5363+129.9200/+30.5400+129.9137/+30.5443+129.9000/+30.5527+129.8800/+30.5600+129.8686/+30.5657+129.8600/+30.5740+129.8400/+30.5785+129.8200/+30.5800+129.8168/+30.5917+129.8000/+30.6000+129.7895/+30.6059+129.7800/+30.6163+129.7600/+30.6200+129.7501/+30.6264+129.7400/+30.6394+129.7200/+30.6400+129.7193/+30.6600+129.7084/+30.6800+129.7046/+30.6820+129.7000/+30.6886+129.6800/+30.6911+129.6600/+30.6977+129.6400/+30.7000+129.6364/+30.7036+129.6400/ 北西 60 鹿児島県屋久島町 4650500 小さな噴石の落下 75 1 +30.4758+130.2000/+30.4740+130.2200/+30.4600+130.2340/+30.4400+130.2388/+30.4212+130.2200/+30.4229+130.2000/+30.4400+130.1826/+30.4600+130.1825/+30.4758+130.2000/ 北西 2 鹿児島県屋久島町 4650500 2026-07-10T15:00:00+09:00 2026-07-10T18:00:00+09:00 降灰 70 +30.7061+129.6200/+30.7142+129.6400/+30.7136+129.6600/+30.7078+129.6800/+30.7015+129.7000/+30.7000+129.7024/+30.6866+129.7200/+30.6814+129.7400/+30.6800+129.7463/+30.6775+129.7600/+30.6684+129.7800/+30.6632+129.8000/+30.6600+129.8102/+30.6561+129.8200/+30.6434+129.8400/+30.6400+129.8443/+30.6349+129.8600/+30.6286+129.8800/+30.6215+129.9000/+30.6200+129.9033/+30.6140+129.9200/+30.6000+129.9379/+30.5994+129.9400/+30.5912+129.9600/+30.5800+129.9727/+30.5783+129.9800/+30.5733+130.0000/+30.5600+130.0197/+30.5600+130.0200/+30.5570+130.0400/+30.5475+130.0600/+30.5400+130.0681/+30.5384+130.0800/+30.5342+130.1000/+30.5200+130.1154/+30.5195+130.1200/+30.5175+130.1400/+30.5000+130.1586/+30.4999+130.1600/+30.4995+130.1800/+30.4949+130.2000/+30.4800+130.2148/+30.4799+130.2200/+30.4600+130.2399/+30.4400+130.2399/+30.4201+130.2200/+30.4200+130.2000/+30.4202+130.1800/+30.4220+130.1600/+30.4346+130.1400/+30.4400+130.1336/+30.4410+130.1200/+30.4448+130.1000/+30.4580+130.0800/+30.4600+130.0770/+30.4623+130.0600/+30.4717+130.0400/+30.4800+130.0276/+30.4816+130.0200/+30.4872+130.0000/+30.4970+129.9800/+30.5000+129.9756/+30.5048+129.9600/+30.5165+129.9400/+30.5200+129.9338/+30.5235+129.9200/+30.5265+129.9000/+30.5400+129.8847/+30.5421+129.8800/+30.5501+129.8600/+30.5578+129.8400/+30.5600+129.8353/+30.5659+129.8200/+30.5731+129.8000/+30.5800+129.7843/+30.5826+129.7800/+30.6000+129.7612/+30.6012+129.7600/+30.6117+129.7400/+30.6200+129.7247/+30.6235+129.7200/+30.6327+129.7000/+30.6400+129.6877/+30.6506+129.6800/+30.6600+129.6719/+30.6729+129.6600/+30.6800+129.6465/+30.6825+129.6400/+30.6951+129.6200/+30.7000+129.6129/+30.7061+129.6200/ 北西 60 鹿児島県屋久島町 4650500 小さな噴石の落下 75 1 +30.4771+130.2000/+30.4600+130.2171/+30.4588+130.2200/+30.4400+130.2388/+30.4212+130.2200/+30.4223+130.2000/+30.4400+130.1820/+30.4600+130.1810/+30.4771+130.2000/ 西 2 鹿児島県屋久島町 4650500 2026-07-10T18:00:00+09:00 2026-07-10T21:00:00+09:00 降灰 70 +30.7066+129.6000/+30.7117+129.6200/+30.7136+129.6400/+30.7123+129.6600/+30.7088+129.6800/+30.7057+129.7000/+30.7000+129.7090/+30.6909+129.7200/+30.6844+129.7400/+30.6809+129.7600/+30.6800+129.7614/+30.6722+129.7800/+30.6676+129.8000/+30.6626+129.8200/+30.6600+129.8285/+30.6557+129.8400/+30.6414+129.8600/+30.6400+129.8615/+30.6335+129.8800/+30.6268+129.9000/+30.6200+129.9133/+30.6173+129.9200/+30.6061+129.9400/+30.6000+129.9467/+30.5953+129.9600/+30.5800+129.9765/+30.5789+129.9800/+30.5747+130.0000/+30.5626+130.0200/+30.5600+130.0229/+30.5574+130.0400/+30.5465+130.0600/+30.5400+130.0671/+30.5386+130.0800/+30.5338+130.1000/+30.5200+130.1146/+30.5194+130.1200/+30.5173+130.1400/+30.5000+130.1581/+30.4998+130.1600/+30.4995+130.1800/+30.4954+130.2000/+30.4800+130.2154/+30.4798+130.2200/+30.4600+130.2398/+30.4400+130.2399/+30.4201+130.2200/+30.4200+130.2000/+30.4202+130.1800/+30.4215+130.1600/+30.4343+130.1400/+30.4400+130.1337/+30.4409+130.1200/+30.4438+130.1000/+30.4512+130.0800/+30.4600+130.0690/+30.4618+130.0600/+30.4665+130.0400/+30.4780+130.0200/+30.4800+130.0174/+30.4852+130.0000/+30.4922+129.9800/+30.5000+129.9665/+30.5020+129.9600/+30.5107+129.9400/+30.5200+129.9237/+30.5214+129.9200/+30.5225+129.9000/+30.5344+129.8800/+30.5400+129.8743/+30.5471+129.8600/+30.5540+129.8400/+30.5600+129.8279/+30.5635+129.8200/+30.5730+129.8000/+30.5800+129.7825/+30.5813+129.7800/+30.5969+129.7600/+30.6000+129.7554/+30.6080+129.7400/+30.6200+129.7203/+30.6202+129.7200/+30.6317+129.7000/+30.6400+129.6843/+30.6453+129.6800/+30.6600+129.6664/+30.6690+129.6600/+30.6800+129.6438/+30.6817+129.6400/+30.6908+129.6200/+30.6976+129.6000/+30.7000+129.5960/+30.7066+129.6000/ 北西 70 鹿児島県屋久島町 4650500 小さな噴石の落下 75 1 +30.4773+130.2000/+30.4774+130.2200/+30.4600+130.2374/+30.4400+130.2388/+30.4212+130.2200/+30.4220+130.2000/+30.4400+130.1818/+30.4600+130.1806/+30.4773+130.2000/ 北西 2 鹿児島県屋久島町 4650500 　現在、口永良部島は噴火警戒レベル２（火口周辺規制）です。口永良部島で噴火が発生した場合には、１０日０９時から１２時までは火口から北西方向に降灰が予想されます。 　１０日３時から１０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 　１０日０３時から０６時まで　西　　　　　　　５０ｋｍ　　２ｋｍ　　　　　 　１０日０６時から０９時まで　西　　　　　　　５０ｋｍ　　２ｋｍ　　　　　 　１０日０９時から１２時まで　北西　　　　　　６０ｋｍ　　２ｋｍ　　　　　 　１０日１２時から１５時まで　北西　　　　　　６０ｋｍ　　２ｋｍ　　　　　 　１０日１５時から１８時まで　北西　　　　　　６０ｋｍ　　２ｋｍ　　　　　 　１０日１８時から２１時まで　北西　　　　　　７０ｋｍ　　２ｋｍ　　　　　 　 　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：屋久島町 　 　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。