Andahua-Orcopampa

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  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 15.42°S
  • 72.33°W

  • 4713 m
    15459 ft

  • 354004
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

The Global Volcanism Program has no activity reports for Andahua-Orcopampa.

The Global Volcanism Program has no Weekly Reports available for Andahua-Orcopampa.

The Global Volcanism Program has no Bulletin Reports available for Andahua-Orcopampa.

The Andahua-Orcopampa volcanic field in the Andahua valley area, 20 km ENE of Nevados de Coropuna, is a large 60 x 60 km scoria cone and lava field. Known locally as the "Valley of the Volcanoes," the volcanic field lies in a series of deep NNW-SSE-trending, on echelon valleys: Orcopampa, Andahua and Ayo. The volcanic field contains extremely youthful dominantly trachyandesitic cinder cones and lava flows that have destroyed buildings and may be only a few hundred years old. The area was reported to have been active during the time of the Incas and to have "become active again" in 1913. Lava flows have repeatedly dammed the Río Andagua valley, and an existing small lake was impounded by the youngest lavas.

Summary of Holocene eruption dates and Volcanic Explosivity Indices (VEI).

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
[ 1913 Mar 6 ] [ Unknown ] Uncertain    
1490 ± 40 years Unknown Confirmed   Radiocarbon (uncorrected) Chilcayoc Grande
0940 BCE ± 100 years Unknown Confirmed   Radiocarbon (uncorrected) Cerro Maurus I
2110 BCE ± 50 years Unknown Confirmed   Radiocarbon (uncorrected) Cerro Tichsó

This compilation of synonyms and subsidiary features may not be comprehensive. Features are organized into four major categories: Cones, Craters, Domes, and Thermal Features. Synonyms of features appear indented below the primary name. In some cases additional feature type, elevation, or location details are provided.


Synonyms

Andagua Valley | Orcopampa Volcanic Field | Andahua Valley

Cones

Feature Name Feature Type Elevation Latitude Longitude
Achacara, Loma Pyroclastic cone 4150 m 15° 20' 0" S 72° 19' 41" W
Antaymarca, Volcán Pyroclastic cone
Challhue Mauras, Volcán Pyroclastic cone 4319 m 15° 22' 8" S 72° 19' 59" W
Chilcayoc Grande, Volcán Pyroclastic cone 3150 m 15° 31' 59" S 72° 17' 17" W
Chilcayoc, Volcánes Pyroclastic cone 3300 m 15° 31' 0" S 72° 18' 47" W
Cochapampa, Cerro Pyroclastic cone
Cruz, Cerro la Pyroclastic cone
Jajarana, Cerro Pyroclastic cone 4600 m 15° 19' 23" S 72° 25' 1" W
Jatun Pyroclastic cone
Jechapita, Volcán Pyroclastic cone 3350 m 15° 32' 0" S 72° 18' 40" W
Jenchana, Volcán Pyroclastic cone 3550 m 15° 31' 1" S 72° 20' 35" W
Mauras, Cerro Pyroclastic cone 4250 m 15° 20' 6" S 72° 19' 34" W
Misahuana Mauras, Volcán Pyroclastic cone 4713 m 15° 15' 25" S 72° 28' 59" W
Pabellon Mauras, Volcán Pyroclastic cone 4507 m 15° 17' 10" S 72° 27' 32" W
Pichihua, Cerro Pyroclastic cone 4650 m 15° 17' 28" S 72° 25' 59" W
Pucu Mauras, Cerro Pyroclastic cone 4287 m 15° 25' 26" S 72° 20' 13" W
Puma Ranga, Cerro Pyroclastic cone 4653 m 15° 16' 0" S 72° 27' 29" W
Santa Rosa Pyroclastic cone
Sayhua, Cerro Pyroclastic cone 4650 m 15° 16' 1" S 72° 27' 22" W
Soporo Pyroclastic cone
Tischó, Cerro Pyroclastic cone 3900 m 15° 28' 52" S 72° 22' 34" W
Uchuy Pyroclastic cone
Yana Mauras, Volcán Pyroclastic cone 4588 m 15° 18' 43" S 72° 25' 59" W
Yanamauras, Cerro Pyroclastic cone 3775 m 15° 28' 41" S 72° 20' 53" W
The cinder cones at the center and upper right, surrounded by a prominent field of lava flows, are located in the Andahua valley, known locally as the "Valley of the Volcanoes." The large 60 x 60 km scoria cone and lava field contains extremely youthful lava flows, some of which may be only a few hundred years old. The volcanic field was reported to have been active during the time of the Incas. Lava flows have repeatedly dammed the Río Andagua valley, and an existing small lake was impounded by the youngest lavas.

Photo by Norm Banks, 1988 (U.S. Geological Survey).

The following references have all been used during the compilation of data for this volcano, it is not a comprehensive bibliography. Discussion of another volcano or eruption (sometimes far from the one that is the subject of the manuscript) may produce a citation that is not at all apparent from the title.

de Silva S L, Francis P W, 1990. Potentially active volcanoes of Peru - observations using Landsat Thematic Mapper and Space Shuttle imagery. Bull Volc, 52: 286-301.

Delacor A, Gerbe M-C, Thouret J-C, Worner G, Paquereau-Lebti P, 2007. Magma evolution of Quaternary minor volcanic centres in southern Peru, Central Andes. Bull Volc, 69: 581-608.

IAVCEI, 1973-80. Post-Miocene Volcanoes of the World. IAVCEI Data Sheets, Rome: Internatl Assoc Volc Chemistry Earth's Interior..

Parodi-I A, 1975. Volcanes del Peru. Soc Geog Lima Bull, 94: 20-23.

Ruprecht P, Worner G, 2007. Variable regimes in magma systems documented in plagioclast zoning patterns: El Misti stratovolcano and Andahua monogenetic cones. J Volc Geotherm Res, 165: 142-162.

Sapper K, 1917. Katalog der Geschichtlichen Vulkanausbruche. Strasbourg: Karl J Trubner, 358 p.

Shippee R, 1932. Lost valleys of Peru: results of the Shippee-Johnson Peruvian expedition. Geog Rev, 22: 562-581.

Sorensen E V, Holm P M, 2008. Petrological inferences on the evolution of magmas erupted in the Adagua Valley, Peru (Central Volcanic Zone). J Volc Geotherm Res, 177: 378-396.

Volcano Types

Pyroclastic cone(s)

Tectonic Setting

Subduction zone
Continental crust (> 25 km)

Rock Types

Major
Trachyandesite / Basaltic trachy-andesite
Minor
Trachyte / Trachyandesite

Population

Within 5 km
Within 10 km
Within 30 km
Within 100 km
10,317
10,317
16,541
171,897

Affiliated Databases

Large Eruptions of Andahua-Orcopampa Information about large Quaternary eruptions (VEI >= 4) is cataloged in the Large Magnitude Explosive Volcanic Eruptions (LaMEVE) database of the Volcano Global Risk Identification and Analysis Project (VOGRIPA).
WOVOdat WOVOdat is a database of volcanic unrest; instrumentally and visually recorded changes in seismicity, ground deformation, gas emission, and other parameters from their normal baselines. It is sponsored by the World Organization of Volcano Observatories (WOVO) and presently hosted at the Earth Observatory of Singapore.
EarthChem EarthChem develops and maintains databases, software, and services that support the preservation, discovery, access and analysis of geochemical data, and facilitate their integration with the broad array of other available earth science parameters. EarthChem is operated by a joint team of disciplinary scientists, data scientists, data managers and information technology developers who are part of the NSF-funded data facility Integrated Earth Data Applications (IEDA). IEDA is a collaborative effort of EarthChem and the Marine Geoscience Data System (MGDS).
Smithsonian Collections Search the Smithsonian's NMNH Department of Mineral Sciences collections database. Go to the "Search Rocks and Ores" tab and use the Volcano Name drop-down to find samples.