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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 / live data | Reports
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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

Sentinel hub | Landsat 8
 

Volcano news: Poás volcano, Costa Rica

Poás volcano (Costa Rica): small eruption on 14 Feb 2014

Thursday Feb 20, 2014 17:29 PM | BY: T

Small mud eruption at Poás on 14 Feb (Image: OVSICOR-UNA via faceook)
Small mud eruption at Poás on 14 Feb (Image: OVSICOR-UNA via faceook)
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:
"Poas in Costa Rica is becoming active, there are reports on the local news. We feel lots of tremors and rotten egg gas is more common.
The latest earth quakes are not showing. Often the reports show Nicaragua but should say Costa Rica ...
Karin Leonard, Grecia, Costa Rica
We are just below Poas by about 21 kilometer by roads".
Previous news
Phreatic activity at Poás on 20 Aug 2013 (OVSICORI)
Thursday, Aug 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. [more]
Friday, May 03, 2013
A phreatic explosion occurred from the crater lake on 1 May. [more]
Yesterday's signal from Poás volcano
Wednesday, May 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. [more]
Saturday, Apr 20, 2013
Minor volcanic unrest that had affected the volcano in the past days seems to be over. [more]
Seismic signal from Poás volcano (POA2 station, OVSICORI)
Wednesday, Apr 10, 2013
The seismic signal suggests increased tremor and signals of possible hydrothermal explosions. An elevated SO2 concentration above the area suggests a higher level of degassing activity. [more]

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