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Quimsachata

Quimsachata-Oroscocha

Lava dome · Peru · 3848m

A lava flow at Quimsachata scoria cone is visible in this October 2020 Planet Labs satellite image monthly mosaic (N is at the top). The flow erupted about 11,500 years ago and is approximately 4.7 km in the NW-SE direction. The smaller lava flow directly to the north was erupted from the Oroscocha lava dome about 6,400 years ago. These are the northernmost young volcanic centers in Perú.
A lava flow at Quimsachata scoria cone is visible in this October 2020 Planet Labs satellite image monthly mosaic (N is at the top). The flow erupted about 11,500 years ago and is approximately 4.7 km in the NW-SE direction. The smaller lava flow directly to the north was erupted from the Oroscocha lava dome about 6,400 years ago. These are the northernmost young volcanic centers in Perú. · Photo: Satellite image courtesy of Planet Labs Inc., 2020 (https://www.planet.com/).
Type
Lava dome
Country
Peru
Region
South America Volcanic Regions / Central Andean Volcanic Arc
Elevation
3848m
Coordinates
-14.131, -71.363
Last eruption
-4450
Tectonic setting
Subduction zone / Continental crust (> 25 km)
Landform
Minor (Silicic)
Major rock type
Rhyolite
Geological summary

The Quimsachata-Oroscocha group consists of two late Pleistocene and Holocene monogenetic volcanoes at the foot of the Cordillera Oriental, far east of the main volcanic front. Quimsachata is a high-potassium andesitic scoria cone surrounded by a lava shield that was erupted in flat terrain along the Vilcanota River about 11,500 years ago. Oroscocha is a rhyolitic lava dome with a short, thick lava flow erupted from a N-S-trending fissure about 6,400 years ago.

From Wikipedia

Quimsachata is dormant lava dome volcano located in the Andes of Peru. It is located in the Cusco Region, Canchis Province at about 24 kilometres (15 mi) northwest of the town of Sicuani. This volcano is constructed from two separate centres, one active 11,500 years ago which formed a scoria cone and a lava field and another active 4450 BCE which formed two lava flows and a lava dome.

Wikipedia · CC BY-SA · Read full article

Eruption history

Summary (VEI over time)
Click a bar to see individual eruptions
4450 BCE~4450 BCE · 1 eruptions · max VEI ?4450 BCE4450 BCE4449 BCE4449 BCE4449 BCE

Detailed timeline

  1. 4450 BCEVEI ?Geological estimate
    BCE 4450 – Ongoing
    Oroscocha

External links

⚠ For reference only. Not for emergency response.