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Diaporama
Poas volcan
Stratovolcano 2708 m (8,884 ft)
Costa Rica, 10.2°N / -84.23°W
Condition actuelle: en vigilance - niveau agité (2 sur 5)
Poas webcams / données en temps réel | Reports
Poas livres | Tours
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
Style éruptif tipique:
Phreatic eruptions, sometimes geyser-like ejections of water from the acid crater lake.
Derniers séismes proches
Derniers images satellite
 

Volcano news: Poás volcano, Costa Rica

Poás volcano (Costa Rica): new phreatic eruption

jeudi mars 20, 2014 17:52 | AUTEUR : T

Phreatic explosion at Poàs volcano yesterday morning (Ovsicori webcam)
Phreatic explosion at Poàs volcano yesterday morning (Ovsicori webcam)
Another moderately sized phreatic eruption from the crater lake of the volcano took place yesterday morning at 07:08 local time.
The explosion ejected steam, water, mud and rocks to about 100 m height.
According to Ovsicori, this type of intermittent, sporadic explosive activity has been characterizing the volcano's typical behavior since 2006. Similar eruptions can be expected in the coming days or even months.
The so-called phreatic explosions themselves are caused by overheated fluids in the hydrothermal system beneath the lake, not directly by fresh magma, but can be very dangerous for anyone near when they occur.
Actualités précédentes
Phreatic eruption at Poás volcano yesterday (OVSICORI-UNA webcam)
mercredi, févr. 26, 2014
An impressive phreatic eruption took place at the volcano yesterday shortly after noon (local time). So-called cypressoide-type jets of water, mud, and solid blocks were ejected in circular directions from the crater lake to heights of approx. 400 m. The webcam that captured the event was covered with mud. ... [details]
Small mud eruption at Poás on 14 Feb (Image: OVSICOR-UNA via faceook)
jeudi, févr. 20, 2014
A very small phreatic or hydrothermal eruption occurred a week ago. OVSICORI-UNA shared a picture showing a geyser-like ejection of mud from the crater lake. Activity in any case seems to have risen. Karin Leonard who lives at Poas wrote us: ... [details]
Phreatic activity at Poás on 20 Aug 2013 (OVSICORI)
jeudi, août 22, 2013
A series of small phreatic eruptions occurred on 20 August at the crater lake. The first occurred at 09:55 (local time), ejecting mud and water to 2-3 m height, and a second one, more powerful, at 11:16 reached heights of 10-20 m. [details]
vendredi, mai 03, 2013
A phreatic explosion occurred from the crater lake on 1 May. [details]
Yesterday's signal from Poás volcano
mercredi, mai 01, 2013
A small earthquake swarm occurred yesterday, probably caused by fluid movements bringing heat into the crater lake. Seismicity has calmed down today again. [details]
 

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