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Michinmahuida

Stratovolcano · Chile · 2452m

Glacier-covered Volcán Minchinmávida is elongated along a NE-SW direction. The volcano has a mostly obscured 3-km-wide caldera, and a youthful eruptive center is located on the ENE side of the complex. An eruption from Minchinmávida was reported in 1742. Darwin observed the volcano in activity in 1834 on his renowned voyage that took him to the Galápagos Islands.
Glacier-covered Volcán Minchinmávida is elongated along a NE-SW direction. The volcano has a mostly obscured 3-km-wide caldera, and a youthful eruptive center is located on the ENE side of the complex. An eruption from Minchinmávida was reported in 1742. Darwin observed the volcano in activity in 1834 on his renowned voyage that took him to the Galápagos Islands. · Photo: NASA International Space Station image ISS006-E-42260, 2003 (http://eol.jsc.nasa.gov/). · Wikimedia Commons
Type
Stratovolcano
Country
Chile
Region
South America Volcanic Regions / Southern Andean Volcanic Arc
Elevation
2452m
Coordinates
-42.799, -72.445
Last eruption
1835
Tectonic setting
Subduction zone / Continental crust (> 25 km)
Landform
Composite
Major rock type
Andesite / Basaltic Andesite
Geological summary

The glacier-covered basaltic-to-andesitic Volcán Michinmahuida, located west of Lago Reñihue, has a saddle-shaped summit with an elongated 3-km-wide caldera. The massive edifice is elongated in a NE-SW direction, and a youthful eruptive center is located on the ENE side of the complex. A major explosive eruption at the beginning of the Holocene produced the Amarillo Ignimbrite that may have created the now ice-filled summit caldera, and Holocene tephra deposits from summit and flank vents have been identified. An eruption was reported in 1742, and Charles Darwin observed activity in 1834. The latest known eruption, February-March 1835, produced a lava flow from a flank crater and lahars that reached the coast at Punta Chana.

From Wikipedia

Michinmahuida is a glaciated stratovolcano located in Los Lagos Region of Chile. It lies about 15 km east of Chaitén volcano, and was extensively covered in ash during the 2008 eruption of Chaitén. The stratovolcano lies above the regional Liquine-Ofqui Fault zone, and the ice-covered massif towers over the south portion of Pumalín Park. It has a summit elevation of 2,450 meters above sea level.

Wikipedia · CC BY-SA · Read full article →

Eruption history

Summary (VEI over time)
Click a bar to see individual eruptions
8400 BCE~8056 BCE · 1 eruptions · max VEI 65649 BCE~5305 BCE · 1 eruptions · max VEI 5540~884 · 1 eruptions · max VEI ?1227~1571 · 1 eruptions · max VEI 41571~1915 · 6 eruptions · max VEI 28400 BCE5993 BCE3242 BCE836 BCE1571

Detailed timeline

  1. 1915 (±25 yrs)VEI 2Geological estimate
    1915 – Ongoing
  2. 1835VEI 0Observed
    1835-02-20 – 1835-03-15
  3. 1834VEI 2Observed
    1834-11-25 – Ongoing
  4. 1775 (±40 yrs)VEI 2Geological estimate
    1775 – Ongoing
  5. 1742VEI 2Observed
    1742 – Ongoing
  6. 1650 (±50 yrs)VEI ?Geological estimate
    1650 – Ongoing
  7. 1550 (±100 yrs)VEI 4Geological estimate
    1550 – Ongoing
  8. 700 (±100 yrs)VEI ?Geological estimate
    700 – Ongoing
  9. 5500 BCE (±150 yrs)VEI 5Geological estimate
    BCE 5500 – Ongoing
  10. 8400 BCE (±150 yrs)VEI 6Geological estimate
    BCE 8400 – Ongoing

External links

⚠ For reference only. Not for emergency response.