Tall eruption from the western vent. (Photo: Tom Pfeiffer)
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The term for all fine-grained volcanic products fragmented during explosive eruptions.
Volcano Special Tours
: We organize tours to particularly active volcanoes and during ongoing eruptions for extended observation time from various viewpoints. These trips, exclusively for very small groups, are often announced only at short notice and require fast travel and flexibility. Each trip is accompanied by a volcanologist from our team. Examples include: Kilauea (Hawai'i), Colima (Mexico), Krakatau and many others.
Dukono volcano photos
: Dukono on Halmahera in Indonesia has been in permanent activity for years, often producing ash plumes that drift around the northern part of the island and have become normality.
Definition of a volcano
: A volcano is the term for any place on the surface of the earth, where hot molten rock (magma) reaches the surface.