Dukono is located at the northernmost of the Halmahera island. It has a broad profile and is capped by many compound craters. Dukono is a very active volcano. Now in last update on Going eruption with ash rain, also some sands material eruption at December 05,2009

“Ternate (ANTARA News) – Mount Dukono in North Halmahera Regency (Halmahera utara), North Maluku eruption with  re-belching ash, following an increase in volcanic activity volcano 1500 meters highes.
“Ash from the eruption spread to dokuno Tobelo district. This happened since last weekend,” said one citizen Tobelo, Aswan when the call from Ternate, Wednesday.
Mount Dukono it had repeatedly spitting on the ashes from the status from normal to raise the alert a few months the cross, not even the rarely seen out fire.”

last times eruption in Jan 15, 2009

Based on analysis of satellite imagery, the Darwin VAAC reported that an ash plume from Dukono drifted SE at an altitude of 3 km (10,000 ft) a.s.l. on 11 February.
Source: Darwin Volcanic Ash Advisory Centre (VAAC) – “Reports provided courtesy of the Smithsonian’s Global Volcanism Program and the US Geological Survey’s Volcano Hazards Program.”

Dukono is a complex volcano and one of the most active volcanoes in Indonesia in historic time located at the northernmost of the Halmahera island. It has a broad profile and is capped by many compound craters. Dukono is a very active volcano. During the major eruption in 1550, a lava flow filled in the strait between Halmahera and the north flank cone of Mount Mamuya. It was an eruption of scale 3 on VEI. Death were reported by the figure is unknown. Smaller eruptions occurred in 1719, 1868, and 1901.[2] Since 1933, Dukono has been erupting continuously until the present

Elevation: 1,335 metres (4,380 feet)[1]  Location: Halmahera, Indonesia Type: Complex volcano Last eruption: 2009 (continuing)

others Volcanoes in Halmahera Islands is Gamalama, Ternate Island , Gamkonora , Mount Ibu, Jailolo, Kiematabu, Tidore Island, Makian Island , Moti Todoko-ranu

Access to Mount Dukono.

if you flight from Menado,  you can take the Flight by Lion Air or Batavia air or Merpati Nusantara to Ternate, then sail by very to Halmahera island, also prosible via Makassar to Ternate by Merpati Nusantara. From Ternate, take one of the regular speedboats to Sidangoli on Halmahera island. In Sidangoli you can switch straight to one of the public cars headed for Tobelo