Peru · Volcanic field
Andagua volcanic field
Andahua-Orcopampa
- Type
- Volcanic field
- Elevation
- 4713m
- Last eruption
- 1490
- Type
- Volcanic field
- Country
- Peru
- Region
- South America / Central Andean Volcanic Arc
- Elevation
- 4713m
- Coordinates
- -15.420, -72.330
- Last eruption
- 1490
- Tectonic setting
- Subduction zone / Continental crust (> 25 km)
- Landform
- Cluster
- Major rock type
- Trachyandesite / Basaltic trachyandesite
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.
From Wikipedia
The Andagua volcanic field is a volcanic field in southern Peru which includes a number of cinder cones, lava domes and lava flows which have filled the Andagua Valley. The volcanic field is part of a larger volcanic province that clusters around the Colca River and is mostly of Pleistocene age, although the Andagua sector also features volcanic cones with historical activity, with the last eruption about 370 years ago. Eruptions were mostly effusive, generating lava flows, cones and small eruption columns. Future eruptions are possible, and there is ongoing fumarolic activity. Volcanic activity in the field has flooded the Andahua valley with lava flows, damming local watersheds in the Laguna de Chachas, Laguna Mamacocha and Laguna Pumajallo lakes and burying the course of the Andagua River. The Andahua valley segment of the larger volcanic province was declared a geopark in 2015.
Wikipedia · CC BY-SA · Read full article →
Eruption history
4 recordedGlossaryDetailed timeline
- 1913VEI ?Method not stated1913-03-06 – end unknown
- 1490 (±40 yrs)VEI ?Geological estimate1490 – end unknownChilcayoc Grande
- 940 BCE (±100 yrs)VEI ?Geological estimate940 BCE – end unknownCerro Maurus I
- 2110 BCE (±50 yrs)VEI ?Geological estimate2110 BCE – end unknownCerro Tichsó
Nearby volcanoes
External links
⚠ For reference only. Not for emergency response.