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Turrialba volcano
Stratovolcano 3340 m (10,958 ft)
Costa Rica, 10.03°N / -83.77°W
Current status: minor activity or eruption warning (3 out of 5)
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Turrialba volcano eruptions:
1723(?), 1847(?), 1853, 1855, 1861(?), 1864-65, 1866, 2010 (Jan 4) - ongoing
Typical eruption style:
Explosive.
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Turrialba volcano (Costa Rica): activity updates and eruption news

Turrialba Volcano (Costa Rica): new eruption on January 12, 2012

Sat, 14 Jan 2012, 09:44
09:44 AM | BY: TP
The Observatory Simológico Volcano of Costa Rica (OVSICORI-UNA) confirmed that a new ash eruption occurred at Turrialba volcano in the afternoon around 15h20 on 12 Jan.
The eruption was first noticed by park rangers and local residents.
During the previous day, numerous rumblings could be heard from the mountain. According to OVSICORI-UNA, the eruption started between 3:10 and 3:20 pm and produced an ash plume from a vent on the southeast flank of the main crater in an area known as "La Quemada".
The ash reached a height of approx. 500 m above the crater rim, and was transported to the N-NW Direction by prevailing winds at an altitude at around 4 km.
The rash is maintained until 6:14 pm the same day with a strong emission of ash and gases.
From the Central Valley, observers could see 2 plumes: one while, rich in steam from the crater that had formed during the phreatic eruption on 5 Jan 2010, and a dark ash rich plume from the current eruption site at La Quemada.
The eruption triggered the closure of the National Park and a "yellow" alert for the areas of Turrialba, Jiménez and Alvarado.
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Links / Sources:
Previous news
Fri, 13 Jan 2012, 10:33
Turrialba volcano (Costa Rica) opened a new vent on 12 January 2012 as the result of an overpressure on the southeast flank of the West Crater. ... read all
Wed, 17 Mar 2010, 09:49
OVSICORI reports that incandescence was observed at Turrialba for the first time. This read all
Sat, 23 Jan 2010, 07:36
A sudden increase of gas emission from the new vent in Turrialba's crater since the morning of 20 Jan prompted the authorities to suspend agricultural activities in the immediate areas around the volcano. ... read all
Fri, 8 Jan 2010, 17:16
Turrialba volcano started erupting ash from one of tis summit craters on the morning of 4 January. ... read all
Sat, 15 Dec 2007, 13:03
The volcanic unrest at Turrialba seems to intensify, and signs of a possible new eruption in the near to medium future are getting stronger: According to OVSICORI-UNA a gas-and-steam plume from Turrialba rose to an altitude greater than 5.3 km (17,400 ft) a.s.l. on 5 December. Fieldwork confirmed an unusual output of gas from several fumaroles along the S outer wall. Areas burned by acute acidification have extended in the last month. Pastures turned yellowish near the upper areas, and native and exotic tree species were impacted as well as birch tree patches along most drainages. Within the W crater, temperatures of fumaroles reached 280 degrees Celsius and native sulfur was present. ... read all
 

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