Map of today's active volcanoesEtna (Sicily, Italy): (19 Aug) The calm period at the volcano did not last very long: Starting at approximately 03:00 UTC (5am local time), strombolian activity has been again observed at the Voragine Crater, producing mild ash emissions. Volcanic tremor amplitude has again risen to high values, suggesting a new batch of magma is now moving upwards. According to the volcano observatory, the tremor source is located in the area below ​​the North-East Crater at an elevation between 1,800 and 2,000 meters above sea level. Regarding ground deformation, the GNSS network currently shows no significant changes. Since approximately 02:30 UTC, some tiltmeter stations—particularly the three summit stations—have registered changes in their trends. The Cratere del Piano summit station has currently accumulated a shift of a few tenths of a microradian, and the observed variation is consistent with the onset of a deflation process.Klyuchevskoy (Kamchatka): Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Tokyo warned of a volcanic ash plume rising to an estimated 23000 ft (7000 m), or flight level 230, and moving at 35 kts in E direction.Original VAAC bulletin: ash plume to 23,000 ft (7,000 m) as of Aug 19, 17:20 UTCSakurajima (Kyushu, Japan): (18 Aug) The Volcanic Ash Advisory Center (VAAC) Tokyo issued the following bulletin.Original VAAC bulletin: EXPLODED AT 20260818/2038Z OVER FL060 EXTD W OBS VA DTG:18/2030ZIbu (Halmahera, Indonesia): Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Darwin warned of a volcanic ash plume rising to an estimated 7000 ft (2100 m), or flight level 070, and moving at 10 kts in S direction.Original VAAC bulletin: ash plume to 7,000 ft (2,100 m) as of Aug 19, 19:50 UTCLewotobi (Flores): Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Darwin warned of a volcanic ash plume rising to an estimated 8000 ft (2400 m), or flight level 080, and moving at 15 kts in NW direction.Original VAAC bulletin: ash plume to 8,000 ft (2,400 m) as of Aug 19, 19:19 UTCLewotolo (Lesser Sunda Islands): Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Darwin warned of a volcanic ash plume rising to an estimated 7000 ft (2100 m), or flight level 070.Original VAAC bulletin: ash plume to 7,000 ft (2,100 m) as of Aug 19, 19:57 UTCSemeru (East Java, Indonesia): Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Darwin warned of a volcanic ash plume rising to an estimated 15000 ft (4600 m), or flight level 150, and moving at 05 kts in N direction.Original VAAC bulletin: ash plume to 15,000 ft (4,600 m) as of Aug 19, 10:50 UTCDukono (Halmahera): Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Darwin warned of a volcanic ash plume rising to an estimated 6000 ft (1800 m), or flight level 060.Original VAAC bulletin: ash plume to 6,000 ft (1,800 m) as of Aug 19, 16:00 UTCFuego (Guatemala): Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Washington warned of a volcanic ash plume rising to an estimated 15000 ft (4600 m), or flight level 150.Original VAAC bulletin: ash plume to 15,000 ft (4,600 m) as of Aug 19, 17:00 UTCPuracé (Colombia): Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Washington warned of a volcanic ash plume rising to an estimated 22000 ft (6700 m), or flight level 220.Original VAAC bulletin: ash plume to 22,000 ft (6,700 m) as of Aug 19, 10:30 UTCReventador (Ecuador): Ongoing volcanic ash emissions are reported at Reventador. Ash cloud movement and forecasts are provided, but no observed ash plume height is available as of the latest advisory.Original VAAC bulletin: Volcano Activity Summary for 19 Aug 2026: