Poas Volcano

Updated: 21. Mai 2024 11:39 GMT - refresh

Stratovolcano 2708 m (8,884 ft)
Costa Rica, 10.2°N / -84.23°W
Aktueller Status: Schwache Aktivität oder Ausbruchswarnung (3 von 5)

Last update: 18 Mai 2024 (Volcanic Ash Advisory)

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.

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Typische Aktivität: Phreatic eruptions, sometimes geyser-like ejections of water from the acid crater lake.
Ausbrüche des Poas: 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

Letzte Erdbeben in der Nähe

Uhrzeit	Mag. / Tiefe	Entfernung / Ort
18. Mai. 21:25 (Costa Rica)	2.7 9 km	24 km östlich	Costa Rica: 12 km al Suroeste de Horquetas, Sarapiqui. I FELT IT - 1 Bericht	Info
Sonntag, 12. Mai 2024 GMT (1 Beben)
12. Mai. 08:10 (Costa Rica)	2.5 78 km	8.9 km südöstlich	6 Km al suroeste de Vara Blanca, Costa Rica	Info
Samstag, 11. Mai 2024 GMT (1 Beben)
11. Mai. 15:41 (Costa Rica)	2.9 39 km	22 km südlich	Costa Rica: 3 km al Sureste de Tacares, Grecia.	Info
Mittwoch, 8. Mai 2024 GMT (1 Beben)
7. Mai. 23:36 (Costa Rica)	2.6 89 km	4.2 km nordöstlich	Costa Rica: 6 km al Noroeste de Varablanca, Heredia.	Info

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Beschreibung

The broad, well-vegetated edifice of Poás has three craters in a N-S line. The 2708-m-high basaltic-to-dacitic complex stratovolcano is cut by a N-S-trending fissure that extends to the lower northern flank, where a parasite volcano (the Congo stratovolcano) and several explosion craters, or maars, most of them lake-filled, have been created.
Poás has two summit crater lakes. The southermost one, Botos, is cold, clear has not eruptied for about 7500 years. The other crater lake is geothermally heated and -after Kawah Ijen in Indonesia - is probably the world's second most acidic natural lake. Its pH is near zero.
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Source: GVP, Smithsonian Institution