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Fotos al azar

Latest news from Turrialba volcano:

Friday, Jan 18, 2019
Volcanic Ash Advisory Center Washington (VAAC) issued the following report: ... [Leer más]
Satellite image of Turrialba volcano on  8 Jan 2019
Tuesday, Jan 08, 2019
Volcanic Ash Advisory Center Washington (VAAC) issued the following report: ... [Leer más]
 

Turrialba volcano

Stratovolcano 3340 m (10,958 ft)
Costa Rica, 10.03°N / -83.77°W
Current status: erupción (4 out of 5)
Turrialba webcams / datos en tiempo real | Reports
Turrialba volcano books | Tours
Last update: 18 Jan 2019 (Volcanic Ash Advisory)
Typical eruption style: Explosivos.
Erupciones del volcán Turrialba: 1723(?), 1847(?), 1853, 1855, 1861(?), 1864-65, 1866, 2010 (Jan 4) - ongoingTurrialba volcano seen from Irazu
Fecha / HoraRevista / ProfundidadDistanciaUbicación
Wed, 16 Jan
Wed, 16 Jan 04:52 UTCM 3.0 / 61 km39 km2 km al Suroeste de San Antonio, Leon Cortes.
Tue, 15 Jan
Tue, 15 Jan 20:33 UTCM 3.6 / 10 km31 km8 km al Norte de Santa Maria de Dota.
Tue, 15 Jan 10:31 UTCM 2.8 / 10 km25 km4 km al Noreste de San Cristobal, Desamparados.
Tue, 15 Jan 07:25 UTCM 2.3 / 6 km21 km4 km al Sur de Tejar, El Guarco.
Mon, 14 Jan
Mon, 14 Jan 05:56 UTCM 3.2 / 79 km15 km2 km al Sureste de San Isidro, Heredia.
Ver los sismos recientes
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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