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Turrialba is a stratovolcano with at least four historic eruptions. The first was in 1853. Explosive eruptions in 1864 and 1866 generated pyroclastic flows. Both eruptions were phreatic. The 1866 eruption also produced mudflows. None of the historic eruptions caused damage or fatalities.
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The volcano has shown signs of unrest in 1996-1997.
For additional photos of Turrialba see the Cocorí homepage. Or go to Index of Costa Rica
Source of Information:
Simkin, T., and Siebert, L., 1994, Volcanoes of the World: Geoscience Press,
Tucson, Arizona, 349 p.
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