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Tenorio volcano

Stratovolcanoes 1916 m / 6,286 ft
Costa Rica, 10.67°N / -85.02°W
Current status: dormant (1 out of 5) | Reports
Tenorio volcano books
Typical eruption style: unspecified
Tenorio volcano eruptions: unknown, no recent eruptions
TimeMag. / DepthDistanceLocation
Tue, 19 Jun
Tue, 19 Jun 14:41 UTCM 4.6 / 176 km18 km7 km al Sur de Upala, Alajuela.
Tue, 19 Jun 14:05 UTCM 3.1 / 8 km23 km3 km al Oeste de Monte Verde, Puntarenas.
Wed, 30 May
Wed, 30 May 05:09 UTCM 3.2 / 7 km23 km9 km al Este de San Rafael, Guatuso.

Background:

The 225 sq km dominantly andesitic Tenorio volcanic massif anchors the SE end of the Guanacaste Range and consists of a cluster of densely forested NNW-SSE-trending volcanic cones. Overlapping lava flows from the principal peak, Tenorio, blanket the NW-to-SW flanks and descend the NE flank. The NW-most of three craters of the central cone is sparsely vegetated and appears to be the most recently active. Volcán Montezuma to the north has twin craters, the northern of which fed a lava flow to the NE. Additional pyroclastic cones are found to the NE and SW of the central complex, and the Bijagua lava domes were constructed on the northern flank. A major debris avalanche covered about 100 sq km below the southern flank of the volcano. A legend exists of an eruption in 1816, but the volcano was densely forested at the time of an 1864 visit by Seebach and is not considered to have erupted in historical time. Fumarolic activity is present on the NE flank.
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Smithsonian / GVP volcano information


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