Dukono Volcano in Indonesia was upgraded to level 3 alert (out of maximum 4) on 30th May 2008. Volcanic explosion earthquakes increased from 32/day to 280/day between April and May 2008. On 25th May, ash emissions reached 800 m above the crater, and booming noises were heard coming from the summit. Ash emissions reached 1000 m above the summit on 29th May. Residents close to the volcano are warned to be alert for ashfall. A 3 km exclusion zone has been placed around the volcano. The volcano was on alert level 2 between January 2002 and May 2008.

Dukono is one of Indonesia's most active volcanoes. Eruptions at Dukono consist of regular explosive eruptions, and occasional lava flows.

There are seven craters at the volcano: Tanah Lapang, Dilekene A, Dikekene B, Malupang Magiwe, Telori, Crater E, and Heneowara.