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.
Harra of Arhab volcano is an active volcanic field ca 30 km north of the Yemen's capital Sana'a.
The volcanic field of stratovolcanoes, cinder cones and lava flows covers about 1500 sq km, and has last erupted between 400 and 600 AD when it produced a cinder cone and a 9 km long lava flow. The only other known historic eruption occurred around 200 AD.
Volcano Calendar 2017: We're proud to present our 2017 volcano calendar: 13 different and attractive images of volcanoes, volcanic landscapes and phenomena taken during volcano tours over the past few years.
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