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Turrialba vulkaan
Stratovulkaan 3340 m (10,958 ft)
Costa Rica, 10.03°N / -83.77°W
Current status: restless (2 out of 5)
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Turrialba vulkaanuitbarstingen:
1723(?), 1847(?), 1853, 1855, 1861(?), 1864-65, 1866, 2010 (Jan 4) - ongoing
Typical eruption style:
Ontploffingsgevaar.
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Turrialba volcano (Costa Rica): activity updates and eruption news

Turrialba volcano (Costa Rica), activity update: gas emissions

Saturday Jan 23, 2010 07:36 AM |

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.
The new activity originates from a new fissure-like vent, 25 m wide and 40 m long (as observed on 9 Jan), which is aligned NE in the same direction as the tectonic trend of the summit craters. It originated from the merging of two new pit craters that opened on Jan 4 and erupted strong jets of gas and occasional bursts of lithic ash. The activity was accompanied by strong near-continuous tremor since January 05th, related to the ash-gas eruptions.

A report summarizing the activity has been published from Costa Rica's National Seismological Network (RSN); an English version can be downloaded here.
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Koppelingen / Bronnen:
Vorig nieuws
Friday, Jan 08, 2010
Turrialba volcano started erupting ash from one of tis summit craters on the morning of 4 January. ... [meer...]
Saturday, Dec 15, 2007
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. ... [meer...]
Thursday, Sep 13, 2007

Unrest at Turrialba volcano continues. Increased fumarolic activity had started in August 2006 and is concentrated mainly  to the W of Turrialba's central crater.

... [meer...]
Friday, Aug 10, 2007
Volcanic unrest at Turrialba volcano continues. Signs of an ongoing slow intrusion of magma at shallow depths indicating a possible eruption in the near-medium term future increase. ... [meer...]

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