Poas volcan

Stratovolcano 2708 m (8,884 ft)
Costa Rica, 10.2°N / -84.23°W
Condition actuelle: normal / en sommeil (1 sur 5)
Last update: 16 mars 2021 (steaming)

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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Style éruptif tipique: Phreatic eruptions, sometimes geyser-like ejections of water from the acid crater lake.
Eruptions du volcan 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

HeureMag. / ProfondeurDistance/Lieu
dimanche, 5. décembre 2021 05:50 GMT (1 séisme)
4 déc. 2021 23:50 (GMT -6) (5. déc. 2021 05:50 GMT)
3.4

8 km
93 km (58 mi)
Caribbean Sea, 35 km au nord de Siquirres, Provincia de Limon, Costa Rica
vendredi, 3. décembre 2021 09:25 GMT (1 séisme)
3 déc. 2021 03:25 (GMT -6) (3. déc. 2021 09:25 GMT)
2.8

11 km
132 km (82 mi)
5.6 km au sud de Puerto Limón, Limon, Costa Rica
mercredi, 1. décembre 2021 18:45 GMT (1 séisme)
1 déc. 2021 12:45 (GMT -6) (1. déc. 2021 18:45 GMT)
2.9

56 km
30 km (19 mi)
15 km au sud-ouest de Alajuela, Costa Rica

Introduction

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

Poas Photos

Vulkan Poás in Costa Rica (Photo: Astrid_Furrer)
Vulkan Poás in Costa Rica (Photo: Astrid_Furrer)
 



See also: Sentinel hub | Landsat 8 | NASA FIRMS
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