Poás is one of Costa Rica´s most active volcanoes, and one of its most frequently visited and prominent ones. It contains a green acid crater lake and during some of its frequent phreatic eruptions, water from the lake is ejected like a geyser.
Stratovolcano 2708 m (8,884 ft) Costa Rica, 10.2°N / -84.23°W Current status: minor activity or eruption warning (3 out of 5) Poas webcams / live data Poas volcano books | Tours Poas volcano eruptions: 1828, 1834, 1838(?), 1860, 1879(?), 1880, 1888-91, 1895, 1898-1907, 1910, 1910, 1914, 1914-15, 1925, 1929, 1941-46, 1948-51, 1952-57, 1958-61, 1963, 1964-65, 1967, 1969, 1970, 1972-73, 1974-75, 1976, 1977, 1977-78, 1978, 1979-80, 1980, 1981, 1987-90, 1991, 1992, 1992-93, 1994, 1996, 2010, 2011, 2012, 2013, 2014, 2016, 2017 Typical eruption style: Phreatic eruptions, sometimes geyser-like ejections of water from the acid crater lake. Last earthquakes nearby Latest satellite images
The activity of the volcano has increased recently. On Saturday, several small phreatic (steam-driven) explosions occurred at the crater lake and scientists measured elevated gas emission rates and raised temperatures. ... [more]
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