Andahua-Orcopampa
Central Andean Volcanic Arc, Peru. This page separates the permanent volcano catalogue, historical eruption records, and selective weekly activity reports.
- Coordinates
- 15.42° S, 72.33° W
- Elevation
- 4,713 m
- Last recorded eruption
- 1490 CE
- Historical eruption records
- 4
- Primary type
- Volcanic field
- Evidence
- Eruption Dated
- GVP database
- 5.4.0
- Catalogue revision
- Revision 2
Volcano profile
- Volcanic landform
- Cluster
- Tectonic setting
- Subduction zone / Continental crust (> 25 km)
- Geologic epoch
- Holocene
- Major rock type
- Trachyandesite / Basaltic Trachyandesite
- Region
- South America Volcanic Regions
- Subregion
- Central Andean Volcanic Arc
Geological summary
The Andahua-Orcopampa volcanic field in the Andahua (or Andagua) 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 field lies in a series of deep NNW-SSE-trending, en-echelon valleys: Orcopampa, Andahua, and Ayo. The field contains 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.
Separate activity dataset
Weekly volcanic activity reports
Smithsonian/USGS weekly reports are selective and preliminary. They are not a comprehensive list of all eruptions or volcanic activity.
No weekly report appears on this page. Absence from the weekly report does not establish an absence of volcanic activity.
Historical catalogue records
Eruption history
Dates can be approximate, incomplete, or BCE. These are historical catalogue observations, not a statement about present activity.
| Start | End | Activity | Confirmation | VEI | Evidence | Record |
|---|---|---|---|---|---|---|
| 1913-03-06 CE | Not supplied | Uncertain Eruption | Uncertain | Not supplied | Not supplied | GVP 11740Database 5.4.0 |
| 1490 ±40 years CE | Not supplied | Confirmed EruptionChilcayoc Grande | Confirmed | Not supplied | Isotopic: 14C (uncalibrated) | GVP 11739Database 5.4.0 |
| 941 ±100 years BCE | Not supplied | Confirmed EruptionCerro Maurus I | Confirmed | Not supplied | Isotopic: 14C (uncalibrated) | GVP 11738Database 5.4.0 |
| 2111 ±50 years BCE | Not supplied | Confirmed EruptionCerro Tichsó | Confirmed | Not supplied | Isotopic: 14C (uncalibrated) | GVP 11737Database 5.4.0 |
Source and attribution
Source: Data: Smithsonian Institution Global Volcanism Program, Volcanoes of the World.
View the original Smithsonian GVP recordGlobal Volcanism Program, 2026. Volcanoes of the World 5.4.0.
The GVP database is scientific documentation that changes as evidence is reviewed. Historical dates may be approximate or uncertain. This platform is not an official emergency-warning service.
Read the GVP terms of useData freshness
- Source updated
- Not supplied
- Retrieved
- 11 Oct 2026, 13:07 UTC
- GVP database version
- 5.4.0
- Catalogue revision
- 2
Source-update and retrieval times describe this catalogue record. Each weekly report carries its own publication date and preliminary status.