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Volcán Maipo

Maipo

Caldera · Chile-Argentina · 5323m

Maipo volcano, seen here from the west, partially fills the Pleistocene Diamante caldera. The floor of the large 15 x 20 km caldera, which formed about 0.45 million years ago during an eruption that produced a 450 cu km ignimbrite, is visible below Maipo. The 5264-m-high basaltic andesite stratovolcano has a relatively simple structure, but has a flank rhyodacitic lava-dome complex and pyroclastic cones on its eastern flank. Lava flows from these cones extend into Laguna Diamante on the eastern side of the caldera.
Maipo volcano, seen here from the west, partially fills the Pleistocene Diamante caldera. The floor of the large 15 x 20 km caldera, which formed about 0.45 million years ago during an eruption that produced a 450 cu km ignimbrite, is visible below Maipo. The 5264-m-high basaltic andesite stratovolcano has a relatively simple structure, but has a flank rhyodacitic lava-dome complex and pyroclastic cones on its eastern flank. Lava flows from these cones extend into Laguna Diamante on the eastern side of the caldera. · Photo: Photo by Wolfgang Foerster, courtesy of Oscar González-Ferrán (University of Chile). · Wikimedia Commons
Type
Caldera
Country
Chile-Argentina
Region
South America Volcanic Regions / Southern Andean Volcanic Arc
Elevation
5323m
Coordinates
-34.164, -69.832
Last eruption
1912
Tectonic setting
Subduction zone / Continental crust (> 25 km)
Landform
Composite
Major rock type
Trachyandesite / Basaltic Trachyandesite
Geological summary

Maipo, a conical stratovolcano that straddles the Chile-Argentina border SE of Santiago, partially fills the 16 x 20 km Pleistocene Diamante caldera, which formed about 450,000 years ago during an eruption that produced an about 350 km3 of rhyolitic ignimbrite. The Pleistocene cones of Volcán Don Casimiro and Cerro Listado were formed on the SW rim and SW flank of the caldera, respectively. The post-caldera Maipo rises about 1,900 m above the caldera floor, and has several cones on the E flank along a series of en échelon NE-trending fractures. Lava flows from one of these cones blocked drainages in 1826 inside the caldera, forming Lake Diamante on the eastern caldera floor.

From Wikipedia

Maipo is a stratovolcano in the Andes, lying on the border between Argentina and Chile. It is located 90 km (56 mi) south of Tupungato and about 100 km (62 mi) southeast of Santiago. It has a symmetrical, conical volcanic shape, and is among the southernmost 5,000 metre peaks in the Andes.

Wikipedia · CC BY-SA · Read full article →

Eruption history

Summary (VEI over time)
Click a bar to see individual eruptions
1788~1800 · 1 eruptions · max VEI ?1813~1825 · 1 eruptions · max VEI ?1825~1838 · 6 eruptions · max VEI 21862~1875 · 1 eruptions · max VEI 21875~1887 · 1 eruptions · max VEI ?1900~1912 · 3 eruptions · max VEI 217881813185018751900

Detailed timeline

  1. 1912VEI 2Observed
    1912 – Ongoing
  2. 1908VEI 2Geological estimate
    1908 – Ongoing
  3. 1905VEI 2Observed
    1905-10-28 – 1905-10-30
  4. 1881VEI ?Geological estimate
    1881 – Ongoing
  5. 1869VEI 2Geological estimate
    1869-08-24 – Ongoing
  6. 1837VEI ?Geological estimate
    1837 – Ongoing
  7. 1835VEI ?Geological estimate
    1835 – Ongoing
  8. 1833VEI 2Geological estimate
    1833 – Ongoing
  9. 1831VEI 2Geological estimate
    1831-02-16 – Ongoing
  10. 1829VEI 2Observed
    1829-09-26 – Ongoing
  11. 1826VEI 2Observed
    1826-03-01 – Ongoing
    East flank (Riso Patrón)
  12. 1822VEI ?Geological estimate
    1822 – Ongoing
  13. 1788VEI ?Geological estimate
    1788 – Ongoing

External links

⚠ For reference only. Not for emergency response.