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Tenorio volcano

Stratovolcanoes 1916 m / 6,286 ft
Costa Rica, 10.67°N / -85.02°W
Current status: normal or dormant (1 out of 5) | Reports
Tenorio volcano books
Typical eruption style: unspecified
Tenorio volcano eruptions: unknown, no recent eruptions
TimeMag. / DepthDistanceLocation
Tue, 27 Nov
Tue, 27 Nov 05:57 UTCM 2.7 / 5 km7 km9 km al Sur de Fortuna, San Carlos.
Mon, 26 Nov
Mon, 26 Nov 23:42 UTCM 2.8 / 45 km47 km17 km al Norte de Quebrada Honda, Nicoya.
Tue, 20 Nov
Tue, 20 Nov 05:47 UTCM 2.8 / 98 km11 km6 km al Suroeste de Venado, San Carlos.
Thu, 8 Nov
Thu, 8 Nov 09:03 UTCM 2.8 / 10 km17 km6 km al Oeste de Venado, San Carlos.
View all recent quakes

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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