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Actualités:

mardi, juin 02, 2020
Moderate explosion from Rincon de la Vieja volcano yesterday (image: OVSICORI)
OVSICORI-UNA reported that moderate phreatic explosion occurred at 17:01 local time yesterday. An ash plume rose 4,921 ft-6,561 ft (1,500 m-2,000 m) above the summit. ... lire toutes
jeudi, mai 28, 2020
Phreatic eruption from Rincon de la Vieja volcano (image: OVSICORI)
OVSICORI-UNA recorded a few phreatic or hydrothermal explosions this week. ... lire toutes
 

Rincón de la Vieja volcan

Complex volcano 1916 m (6,286 ft)
Costa Rica, 10.83°N / -85.32°W
Condition actuelle: Activité petite ou avertissement éruption imminente (3 sur 5)
Rincón de la Vieja webcams / données en temps réel | Reports
Rincón de la Vieja livres | Tours
Last update: 2 juin 2020 (phreatic explosion yesterday)
Style éruptif tipique:

Explosive.


Eruptions du volcan Rincón de la Vieja: 1529(?), 1765, 1844, 1849, 1851(?), 1853-54, 1860, 1861-63, 1902(?), 1912, 1917(?), 1922, 1966-67, 1969, 1969, 1970, 1983, 1984, 1985-86, 1987, 1991-92, 1995, 1998 (Feb.-Sep.)
HeureMag. / DepthDistanceLocation
Fri, 7 Aug 2020
Fri, 7 Aug 05:37 UTCM 2.8 / 158 km18 km21 km al Norte de Aguas Claras, Upala. (Costa Rica)
Sat, 25 Jul 2020
Sat, 25 Jul 18:44 UTCM 2.8 / 10 km11 km7 km al Oeste de Aguas Claras, Upala. (Costa Rica)
Rincón de la Vieja is the largest volcano in NW Costa Rica and one of its most active ones.

Introduction:

It is a remote volcanic complex in the Guanacaste Range, consisting of an elongated, arcuate NW-SE-trending ridge that was constructed within the 15-km-wide, about 9,000 years-old Guachipelín caldera, whose rim is exposed on the south side.
Rincón de la Vieja, sometimes known as the "Colossus of Guanacaste," has an estimated volume of 130 cu km and contains at least 9 major eruptive centers.
Activity has migrated to the SE, where the youngest-looking craters are located. The twin cone of 1916-m-high Santa María volcano, the highest peak of the Rincón complex, is located at the eastern end of a smaller, 5-km-wide caldera and has a 500-m-wide crater.
A plinian eruption producing the 0.25 cu km Río Blanca tephra about 3500 years ago was the last major magmatic eruption from the volcano. All subsequent eruptions, including numerous historical eruptions possibly dating back to the 16th century, have been from the prominent crater containing a 500-m-wide acid lake (known as the Active Crater) located ENE of Von Seebach crater.
Source: GVP, Smithsonian Institution


Derniers images satellite


See also: Sentinel hub | Landsat 8

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