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Located in southeast Costa Rica, Turrialba is a large, densely forested stratovolcano. Three well-defined craters lie in the upper section of a broad summit depression. Turrialba has been quiet since a series of explosive eruptions in the 19th century that featured intermittent pyroclastic* flows. Fumarole activity continues at the summit craters. Of its three craters, the central one is the deepest and most active, presenting two conic structures with sulfuric steam and vapors.

OVISCORI-UNA maintains a permanent montioring station at the volcano.


 
 
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