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Latest news from Turrialba volcano:

Thursday, Feb 13, 2020
OVSICORI-UNA report that no ash emissions was detected from the volcano. Seismicity is of a stable amount. Carbon dioxide/Sulfur dioxide (CO 2 / SO 2) and Hydrogen sulfide/Sulfur dioxide (H 2 S / SO 2) ratios remain within a normal range. Sulfur dioxide emissions was measured at an average of 100 tonnes/day. Crater depth was measured at 140 m, compared to 220 m in 2019. This shallowing of the crater is due to “frequent collapses of the internal walls.” [meer...]
 

Turrialba vulkaan

Stratovulkaan 3340 m (10,958 ft)
Costa Rica, 10.03°N / -83.77°W
Current status: restless (2 out of 5)
Turrialba webcams / Live-gegevens | Reports
Turrialba vulkaan boeken | Tours
Last update: 29 Feb 2020
Typical eruption style: Ontploffingsgevaar.
Turrialba vulkaanuitbarstingen: 1723(?), 1847(?), 1853, 1855, 1861(?), 1864-65, 1866, 2010 (Jan 4) - ongoing Turrialba volcano seen from Irazu
TijdMag. / DiepteAfstandLocatie
Wed, 20 May 2020
Wed, 20 May 18:35 UTCM 2.8 / 3 km3 km10 km al Norte de Santa Cruz, Turrialba. (Costa Rica)
Tue, 19 May 2020
Tue, 19 May 10:39 UTCM 3.3 / 3 km3 km11 km al Noroeste de Santa Cruz, Turrialba. (Costa Rica)
Mon, 18 May 2020
Mon, 18 May 15:38 UTCM 3.1 / 3 km3 kmCosta Rica
Thu, 14 May 2020
Thu, 14 May 08:55 UTCM 2.9 / 3 km1 km9 km al Norte de Santa Cruz, Turrialba. (Costa Rica)
Wed, 6 May 2020
Wed, 6 May 21:28 UTCM 2.8 / 14 km19 km5 km al Oeste de Pocora, Guacimo. (Costa Rica)
Bekijk alle recente aardbevingen
Turrialba (3340 m) is the easternmost of Costa Rica's active volcanoes. It is a large stratovolcano with a complex of 3 summit craters and its flanks mostly covered by farmland and forest. vegetation. After its previous eruption in 1866, signs of unrest started in 2006 and new phreatic activity began on Jan 4, 2010.

Background:

Turrialba is the easternmost of Costa Rica's active volcanoes and a large vegetated basaltic-to-dacitic stratovolcano. It is located opposite Irazú volcano, both being separated by a broad saddle.
Together with Irazú, Turrialba is one of Costa Rica's largest volcanoes. During the past 3500 years in prehistoric times, it has had at least 5 larger explosive eruptions. The top of Turrialba has 3 craters at the upper SW end of a broad 800 x 2200 m wide summit depression breached to the NE.
Eruptions from Turrialba occurred mostly from the summit craters, although two flank cones are found on the SW flank. During the 19th century, a few eruptions occurred that produced pyroclastic flows. Since an eruption in 1866 and until 2006, Turrialba was quiescent, but showed strong fumarolic activity at the central craters.
Since 2006, increased fumarolic and seismic activity were noted. On Jan 4, 2010, two new vents that later merged into a fissure aligned along the tectonic trend of the summit area opened in its western crater and started to erupt large amounts of sulphur dioxide gas and occasional lithic ash. This phreatic activity was accompanied by strong tremors and continued for a few days, but declined since Jan 8. Ash fall in the surroundings of the volcano and acid rain caused damage to agriculture and prompted evacuation of about 30 inhabitants living in the immediate vicinity of the volcano.


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