No volcanic ash observed at Dukono volcano, Indonesia, advisory terminated

Volcanic ash from Dukono in Indonesia was not observed at any altitude at 22:10 UTC on October 27, 2025. The advisory was issued by the Darwin VAAC at 22:30 UTC.

No ash cloud was detected by satellite imagery (Himawari-8) for the past 24 hours, and there were no other information sources indicating an ongoing eruption or the presence of ash in the atmosphere. The current Aviation Color Code is Orange. The advisory has been terminated and no further advisories will be issued.

According to the Smithsonian / USGS Weekly Volcanic Activity Report for September 24 – September 30, 2025, Dukono continued eruptive activity, producing white-and-gray gas-and-ash plumes up to 700 m (2 300 feet) above the summit on most days, drifting towards the east, north-northwest, and west. The public was advised to stay 4 km (2.5 miles) from the Malupang Warirang Crater.

Dukono is a persistent, active stratovolcano located on Halmahera Island, Indonesia. It is known for frequent ash emissions and Vulcanian explosions. Volcanic hazards include ashfall, which may affect nearby villages such as Galela and Tobelo, as well as occasional lava flows and pyroclastic density currents. Settlements within several kilometers (miles) of the volcano may be at risk from these hazards.