Map of today's active volcanoesSakurajima (Kyushu, Japan): (27 Jul) Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: EXPLODED AT 20250727/2216Z FL060 EXTD W OBS VA DTG:27/2220ZIbu (Halmahera, Indonesia): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 7000 ft (2100 m) altitude or flight level 070 and is moving at 05 kts in NW direction.The full report is as follows: VA TO FL070 LAST REPORTED AT 28/0234Z EST VA DTG:28/1740Z to 7000 ft (2100 m)Lewotolo (Lesser Sunda Islands): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 6000 ft (1800 m) altitude or flight level 060 .The full report is as follows: VA TO FL060 REPORTED AT 28/1121Z MOV W EST VA DTG:28/1200Z to 6000 ft (1800 m)Semeru (East Java, Indonesia): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 15000 ft (4600 m) altitude or flight level 150 and is moving at 05 kts in SE direction.The full report is as follows: VA TO FL150 LAST REPORTED AT 28/1015Z EST VA DTG:28/1850Z to 15000 ft (4600 m)Dukono (Halmahera): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 10000 ft (3000 m) altitude or flight level 100 .The full report is as follows: VA TO FL100 LAST REPORTED AT 28/1354Z EST VA DTG:28/1400Z to 10000 ft (3000 m)Popocatépetl (Central Mexico): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 20000 ft (6100 m) altitude or flight level 200 .The full report is as follows: MINOR VA EMS to 20000 ft (6100 m)Santiaguito (Guatemala): (28 Jul) Volcanic Ash Advisory Center Washington (VAAC) issued the following report: NO VA DETECTEDSangay (Ecuador): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 22000 ft (6700 m) altitude or flight level 220 .The full report is as follows: VA EMS PSBL to 22000 ft (6700 m)Reventador (Ecuador): Volcanic Ash Advisory Center Washington (VAAC) issued the following report: NO VA EMSNyamuragira (DRCongo): The effusive eruption at the volcano continues.The lava continues to keep the flow active that emerges from the summit lava lake as detectable from the latest Sentinel-2 satellite acquisition on 27 July.The lava on the northwestern flank keeps the flow active, currently about 4 km long.Volcano Activity Summary for 28 Jul 2025: