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Andahua-Orcopampa volcano

Updated: Sep 29, 2022 06:07 GMT -
cinder cones 4713 m / 15,462 ft
Peru, -15.42°S / -72.33°W
Current status: normal or dormant (1 out of 5)

The Andahua-Orcopampa volcanic field is a 50 km x 30 km large field of monogenetic vents in the Andahua valley area, 20 km ENE of Nevados de Coropuna stratovolcano. It is known locally as the "Valley of the Volcanoes".
The field contains scoria cones and lava flows, some of which are very young and from historic eruptions.
Strombolian eruptions and lava flows have destroyed buildings from the time of the Incas, and there were uncertain reports of activity in 1913. Lava flows have repeatedly dammed the Río Andagua valley modified the local topography.

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Typical eruption style: strombolian & effusive
Andahua-Orcopampa volcano eruptions: 1913(?), 1490 ± 40, 940 BC ± 100, 2110 BC ± 50 (radiocarbon dated)

Latest nearby earthquakes

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Background

The Andahua–Orcopampa volcanic field contains more than 40 cones, up to 300 m high and 500-650 m across. It lies in a series of deep NNW-SSE-trending, on echelon valleys: Orcopampa, Andahua and Ayo.
It belongs to the magmatic arc of the Western Cordillera, which produces andesitic to dacitic volcanoes built on 60–80 km thick continental crust and is located about 120–130 km above the Wadati–Benioff zone.


See also: Sentinel hub | Landsat 8 | NASA FIRMS

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