Ash cloud from Ibu volcano observed at 2.4 km, Indonesia

An ash cloud from Ibu volcano, Indonesia, was last observed at 2.4 km (8 000 feet) altitude at 21:40 UTC on September 15, 2026, according to the Darwin Volcanic Ash Advisory Center (VAAC). The ash cloud was moving northeast based on available data from satellite and ground reports.

As of 04:10 UTC on September 16, volcanic ash was not identifiable on current satellite imagery due to meteorological cloud cover. However, the advisory stated that discrete emissions were expected to be ongoing. Height and movement estimates relied on satellite imagery, ground observations, and model guidance. The advisory forecast the ash cloud to remain at the same altitude and move in the same general direction for the next 18 hours. No Aviation Color Code was stated in the advisory.

Ibu volcano is located on the island of Halmahera in eastern Indonesia and is part of the active volcanic arc in this region.