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Fotos al azar
Latest news from Poas volcano:
Phreatic eruption at Poás on 30 Sep 2019 (image: OVSICORI_UNA webcam)
jueves, oct 03, 2019
OVSICORI-UNA reported that during 16-26 September sulfur dioxide emissions from Poás drifted W and NE, causing a sulfur odor in Alajuela, Heredia, San José, and Cartago. Acidic rain was recorded at the official’s house in the Poás Volcano National Park (PNVP) on 23 September and at Universidad Nacional Costa Rica (UNA) in Heredia on 26 September. ... [Leer más]
Satellite image of Poas volcano on 30 May 2019
jueves, may 30, 2019
Volcanic Ash Advisory Center Washington (VAAC) issued the following report: ... [Leer más]
 

Poas volcano

Stratovolcano 2708 m (8,884 ft)
Costa Rica, 10.2°N / -84.23°W
Current status: restless (2 out of 5)
Poas webcams / datos en tiempo real | Reports
Poas volcano books | Tours
Last update: 3 oct 2019 (frequent phreatic eruptions)
Typical eruption style: Phreatic eruptions, sometimes geyser-like ejections of water from the acid crater lake.
Erupciones del volcán 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
Fecha / HoraRevista / ProfundidadDistanciaUbicación
Mon, 2 Dec 2019
Mon, 2 Dec 15:08 UTCM 3.5 / 93 km11 kmCosta Rica
Wed, 13 Nov 2019
Wed, 13 Nov 20:26 UTCM 3.2 / 83 km4 km6 km al Noroeste de Varablanca, Heredia. (Costa Rica)
Mon, 11 Nov 2019
Mon, 11 Nov 16:28 UTCM 3.6 / 80 km12 km2 km al Noreste de San Pedro, Poas. (Costa Rica)
Mon, 11 Nov 04:04 UTCM 3.5 / 84 km12 km3 km al Este de San Roque, Grecia. (Costa Rica)
Ver los sismos recientes
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.

Background:

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

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