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Andahua-Orcopampa volcano

cinder cones 4713 m / 15,462 ft
Peru, -15.42°S / -72.33°W
Current status: normal or dormant (1 out of 5) | Reports
Andahua-Orcopampa volcano books
Typical eruption style: strombolian & effusive
Andahua-Orcopampa volcano eruptions: 1913(?), 1490 ± 40, 940 BC ± 100, 2110 BC ± 50 (radiocarbon dated)
TimeMag. / DepthDistanceLocation
Fri, 17 Apr 2020
Fri, 17 Apr 08:15 UTCM 4.2 / 111.6 km21 km30km SE of Orcopampa, Peru
Fri, 17 Apr 08:15 UTCM 4.1 / 144 km18 km16 km al Nor-Este de Chachas, Castilla - Arequipa (Peru)
Wed, 19 Feb 2020
Wed, 19 Feb 07:13 UTCM 4.0 / 131 km13 km21 Km Al Norte De Chachas, Castilla - Arequipa (Peru)
Thu, 13 Feb 2020
Thu, 13 Feb 00:08 UTCM 4.1 / 149 km29 km23 Km Al Norte-NE De Choco, CASTILLA - AREQUIPA (Peru)
Tue, 29 Jan 2019
Tue, 29 Jan 23:34 UTCM 5.4 / 101 km6 kmSouthern Peru
View all recent quakes
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.


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.

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