The Volcano Adventure Guide: Excellent information and background for anyone wishing to visit active volcanoes safely and enjoyably. The book presents guidelines to visiting 42 different volcanoes around the world.
Kuruse Hole is a submarine circular caldera located between Mikurajima and Hachijojima in the Izu Islands chain. The caldera is 600-760 deep and 5–7 km wide. A flat-topped rim of a probable somma (pre-caldera cone) rises to within 107 m of the sea surface.
Large amounts of dacitic pumice were recovered from dredges along the inner caldera wall. Kurose caldera seems to be young, based on its morphology, but the age of its most recent eruption is unknown.
Igneous or magmatic rocks: The most primitive rock type forms when magma (molten rock) solidifies - either inside the earth (plutonic rocks) or during volcanic eruptions (volcanic rocks). A short overview.
Photos from Kamchatka: Kamchatka in Russia's far east is one of world's remotest regions and has an almost unparalleled density of active volcanoes. Look at photos taken during our expeditions from this wonderful corner of the world!
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