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Stratovolcano 2708 m (8,884 ft)
Costa Rica, 10.2°N / -84.23°WCurrent status
(2 out of 5)Poas webcams / live data
| ReportsPoas volcano books | ToursPoas 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, 2017Typical eruption style:
Phreatic eruptions, sometimes geyser-like ejections of water from the acid crater lake.Last earthquakes nearbyLatest satellite images
Volcano news: Poás volcano, Costa Rica
Small eruptions at Poas, 29 October
Tuesday Oct 30, 2012 10:02 AM | BY: VOLCANOBULLETIN
Early Sunday morning, 29th October residents reported a rumbling sound from Poas. Then at around 13:00 (local time) the volcano ejected ash and mud 500 M above the crater. Two other eruptions took place at 16:34 and 16:44 (both local time). The eruptions were most probably phreatic. The Alert Level remains at GREEN.
Links / Sources:
Wednesday, Jun 13, 2012
OVSICORI-UNA reported that phreatic eruptions at Poás occurred on 6, 15, 20 and 26 May. The eruption on 15 May was preceded by about 6 hours of very-low amplitude harmonic tremor. Administrators of the Poás Volcano National Park witnessed the eruption and reported that sediment, water, rock fragments, and plumes were ejected 500 m above the lake surface. The level of the lake dropped ~0.9 m between 8 and 29 May.
Tuesday, Mar 13, 2012
During February, Poás activity consisted in strong high-temperature fumarolic activity and sporadic small phreatic explosions, reported by park rangers. ...
Wednesday, Jan 04, 2012
Fieldwork at Poás on 16 December showed new geyser activity from a vent on the N flank of the lava dome that formed in 2011. A water-and-mud fountain rose 5-6 m high, flowed into the lake, and built a terrace along the S shore. ...
Saturday, Sep 24, 2011
Recently, a part of the lava dome inside the crater of Poas volcano has been showing areas of incandescence and flames of burning gas. ...
Wednesday, Feb 10, 2010
Our correspondant from Costa Rica reports two phreatic eruptions from Poás volcano's crater lake on the morning of Feb 9.
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