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Случайные фотографии
Latest news:
Rincon de la Vieja volcano covered by clouds from satellite (image: Sentinel 2)
Thursday, Feb 20, 2020
OVSICORI-UNA recorded at night on 17 February a small eruption associated with LP tremor. The number of LP events has generally decreased. Additionally, it was measured a extension with a inflation of volcanic edifice, but it is not significant. ... [подробнее]
Rincon de la Vieja volcano from satellite (image: Sentinel 2)
Friday, Feb 14, 2020
OVSICORI-UNA reported that seismic tremor has decreased over the past days. There is tendency to inflation of the volcano edifice. ... [подробнее]
Thursday, Feb 13, 2020
OVSICORI-UNA report that there is currently a stable fluctuation pattern of seismic activity at the volcano. There is continued inflation but not a significant amount. Carbon dioxide/Sulfur dioxide (CO 2 / SO 2) ratios remains stable with the exception of a peak on February 9. There is almost no Hydrogen sulfide (H 2 S). Sulfur dioxide emissions significantly increased over the weekend (February 8-9). The crater lake level has also decreased. [подробнее]
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.” [подробнее]
Rincon de la Vieja's eruption on 30 Jan 2020 (image: OVSICORI-UNA)
Saturday, Feb 01, 2020
An moderate explosive eruption occurred at the volcano on 30 Jan 2020 at 12:13 local time, producing a steam and ash plume that rose approx. 2 km above the crater. ... [подробнее]
Volcanoes of Costa Rica
Map showing Costa Rica's most active volcanoes and the location of the plate boundary between the subducting Pacific and the overriding Carribean plate. (Base map created using Jules Verne UNAVCO map tool featuring Face of the Earth (TM)).
Map showing Costa Rica's most active volcanoes and the location of the plate boundary between the subducting Pacific and the overriding Carribean plate. (Base map created using Jules Verne UNAVCO map tool featuring Face of the Earth (TM)).
 

Volcanoes of Costa Rica

Arenal |Barva |Irazu |Miravalles |Orosí |Platanar |Poas |Rincón de la Vieja |Tenorio |Turrialba
Costa Rica is a small country but has a lot of active volcanoes aligned like pearls on a chain, caused by the NE subduction of the Pacific tectonic plate under the Carribean plate. Among the country's most active volcanoes are Arenal, Poás and Irazú volcanoes.
Arenal
(Стратовулкан)
Arenal volcano seen from Rio CalienteArenal, a major tourist attraction in Costa Rica, is one of the most active volcanoes of Central America. Since a major eruption in 1968, it has been in near-continuous activity building a lava dome and displaying mild explosive activity from the summit crater. [БОЛЬШЕ]

Barva
(Complex volcano)
[БОЛЬШЕ]

Irazu
(Стратовулкан)
Irazú (3432 m) immediately east of the capital San José is Costa Rica's highest and one of its most active volcanoes. Tephra fall (ash) during the last major eruption of Irazú in 1963-65 caused heavy damage to infrastructure and life in San José and its surroundings. [БОЛЬШЕ]

Miravalles
(Стратовулкан)
[БОЛЬШЕ]

Orosí
(Stratovolcanoes)
[БОЛЬШЕ]

Platanar
(Stratovolcanoes)
[БОЛЬШЕ]

Poas
(Стратовулкан)
Poás is one of Costa Rica´s most active volcanoes, and one of its most frequently visited and prominent ones. It contains a green acid crater lake and during some of its frequent phreatic eruptions, water from the lake is ejected like a geyser. [БОЛЬШЕ]

Rincón de la Vieja
(Complex volcano)
Rincón de la Vieja is the largest volcano in NW Costa Rica and one of its most active ones. [БОЛЬШЕ]

Tenorio
(Stratovolcanoes)
[БОЛЬШЕ]

Turrialba
(Стратовулкан)
Turrialba volcano seen from IrazuTurrialba (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 ph... [БОЛЬШЕ]
 

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