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.
Pululagua volcano is a low forested stratovolcano cut by a caldera. It is located immediately north of the equator, 15 km north of the capital Quito. The caldera is 5 km wide and irregularly shaped and covers an area of 19 km2.
The caldera formed about 2450 year ago after a series of violent explosive eruptions. It is partially filled by post-caldera dacite lava domes, which rise to up to 480 m above the caldera floor, and is breached to the west along the Rio Blanco valley. There are several older lava domes on the eastern, SE and southern flank of the volcano as well.
There is no historic activity, but radiocarbon-dated tephra layers witness frequent explosive eruptions in the past thousands of years. The latest known eruption occurred from vents near the lava domes in the caldera about 1670 years ago. It produced lava flows and pyroclastic flows.
Current activity of Bardarbunga volcano, Iceland: An intense seismic crisis started at Bárdarbunga volcano on 16 August 2014 and is continuing at the time of writing (23 Aug). It may or may not lead to a volcanic eruption, possibly under the Vatnajökull ice cap.
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