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Ecuador · Stratovolcano

volcano Atacazo

Atacazo

Type
Stratovolcano
Elevation
4463m
Last eruption
-320
volcano Atacazo
Photo: John Ewert, USGS · Public domain · Wikimedia Commons
Type
Stratovolcano
Country
Ecuador
Region
South America / Northern Andean Volcanic Arc
Elevation
4463m
Coordinates
-0.353, -78.617
Last eruption
-320
Tectonic setting
Subduction zone / Continental crust (> 25 km)
Landform
Composite
Major rock type
Andesite / Basaltic andesite

Geological summary

Atacazo, located about 25 km SW of Quito, consists of a large Pleistocene andesitic stratovolcanoes truncated by a late-Pleistocene to Holocene caldera.

Excerpt from the Global Volcanism Program, Smithsonian Institution · Read the full summary on GVP →

From Wikipedia

Atacazo is a volcano of the Western Cordillera located 25 kilometers southwest of Quito, Ecuador. Atacazo is a stratovolcano formed by the action of a Late-Pleistocene to Holocene caldera. The last eruption of the Atacazo was nearly 2300 years ago.

Wikipedia · CC BY-SA · Read full article →

Eruption history

4 recordedGlossary

Record summary

Confirmed eruptions
4
Uncertain eruptions
0
Span of confirmed record
6910 BCE – 320 BCE
Largest confirmed eruption
VEI 5 (320 BCE, the most recent of 2)
Confirmed eruptions since 1900
0
Summary (VEI over time)
Click a bar to see individual eruptions · Use arrow keys to move between bars, Enter to open
6910 BCE~6690 BCE · 1 eruptions · max VEI 43615 BCE~3395 BCE · 1 eruptions · max VEI 42517 BCE~2297 BCE · 1 eruptions · max VEI 5540 BCE~320 BCE · 1 eruptions · max VEI 56910 BCE5372 BCE3615 BCE2077 BCE540 BCE

Detailed timeline

  1. 320 BCE (±16 yrs)VEI 5Geological estimate
    320 BCE – end unknown
    Ninahuilca Chico II dome
  2. 2490 BCE (±40 yrs)VEI 5Geological estimate
    2490 BCE – end unknown
    Ninahuilca Chico I dome
  3. 3490 BCE (±100 yrs)VEI 4Geological estimate
    3490 BCE – end unknown
    Arenal II dome
  4. 6910 BCEVEI 4Geological estimate
    6910 BCE – end unknown
    La Cocha II dome

Nearby volcanoes

External links

⚠ For reference only. Not for emergency response.