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.
Harrat Khaybar volcano one of Arabia's largest volcanic fields and covers more than 14,000 square km 65 km NE of Al Madinah (Medina) in western Saudi Arabia. It contains a 100 km long N-S oriented line of volcanic vents including scoria cones, lava domes, maars, basalt lava flows, and the only stratovolcano in the Harrats of western Arabia, Jabal Qidr stratovolcano. There are at least 8 lava flows that have been dated to historic times (less than 1500 years old). These include the prominent 55-km-long Habir lava flow and flows from Jabal Oidr. However, only one eruption is recorded in historic memory from early Mohammedan times during the 7th century AD.
Blue flames of burning sulfur: Ijen volcano in East Java has one of the most impressive sulfur deposits on earth. They are so hot that the sulfur often ignites - a mysterious display at night caught on camera.
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