No volcanic ash detected at Dukono volcano, Indonesia as of October 19, 2025

Volcanic ash from Dukono in Indonesia was not observed at any altitude at 04:40 UTC on October 19, 2025. The advisory was issued by the Darwin VAAC at 05:00 UTC on the same date.

No volcanic ash cloud was observed or forecast. The last reported volcanic ash reached flight level 60 (approximately 1 830 m or 6 000 feet), but there has been no identifiable ash on satellite imagery for over 24 hours. The current Aviation Color Code is Orange. The advisory has been terminated and no further advisories will be issued unless new information becomes available.

According to the Smithsonian / USGS Weekly Volcanic Activity Report for September 24–30, 2025, eruptive activity at Dukono continued during that week. White-and-gray gas-and-ash plumes rose as high as 700 m (2 300 feet) above the summit on most days and drifted east, north-northwest, and west. The Alert Level remained at Level 2, with the public advised to stay 4 km (2.5 miles) away from the Malupang Warirang Crater.

Dukono is a large, active stratovolcano located on Halmahera Island, Indonesia. Known hazards include ashfall, pyroclastic flows, and volcanic gas emissions. The remote location means limited populations are nearby, but the town of Galela is located roughly 14 km (9 miles) to the north, with other small settlements at lesser distances potentially affected by ashfall.