The photos were taken between 10th and 14th June 2014 on the volcano Dukono. The volcano is located on the Indonesian island of Halmahera. The volcano is constantly active since 2008, but the intensity of the activity varies greatly. We caught the volcano in a very active phase: Volcanic ash rose up to 2.5 km high. At night we were able to observe volcanic lightning and strombolian eruptions. The eruptions hurled lava bombs beyond the crater rim and presented a serious threat to the observers. Members of the expeditions were Thorsten Böckel, Richard Roscoe and Marc Szeglat.