Photo of this volcano
  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 34.164°S
  • 69.832°W

  • 5323 m
    17459 ft

  • 357021
  • Latitude
  • Longitude

  • Summit

  • Volcano

The Global Volcanism Program has no activity reports for Maipo.

The Global Volcanism Program has no Weekly Reports available for Maipo.

The Global Volcanism Program has no Bulletin Reports available for Maipo.

Eruptive History

Summary of Holocene eruption dates and Volcanic Explosivity Indices (VEI).

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
1912 Unknown Confirmed 2 Historical Observations
[ 1908 ] [ Unknown ] Uncertain 2  
1905 Oct 28 1905 Oct 30 Confirmed 2 Historical Observations
[ 1881 ] [ Unknown ] Uncertain    
[ 1869 Aug 24 ] [ Unknown ] Uncertain 2  
[ 1837 ] [ Unknown ] Uncertain    
[ 1835 ] [ Unknown ] Uncertain    
[ 1833 ] [ Unknown ] Uncertain 2  
[ 1831 Feb 16 ] [ Unknown ] Uncertain 2  
1829 Sep 26 Unknown Confirmed 2 Historical Observations
1826 Mar 1 Unknown Confirmed 2 Historical Observations East flank (Riso Patrón)
[ 1822 ] [ Unknown ] Uncertain    
[ 1788 ] [ Unknown ] Uncertain    

This compilation of synonyms and subsidiary features may not be comprehensive. Features are organized into four major categories: Cones, Craters, Domes, and Thermal Features. Synonyms of features appear indented below the primary name. In some cases additional feature type, elevation, or location details are provided.

Photo Gallery

The NW rim of Diamante caldera in the center of the image rises above the caldera floor in the foreground. The caldera was formed during voluminous rhyolitic explosive eruptions about 450,000 years ago that produced ashflows that extended radially more than 100 km from the caldera, covering much of the Central Valley of Chile and extending into Argentina. The conical snow-capped peak on the center horizon beyond rugged intervening peaks of the Andes is San José volcano.

Photo by Oscar González-Ferrán (University of Chile).
See title for photo information.
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 by Wolfgang Foerster, courtesy of Oscar González-Ferrán (University of Chile).
See title for photo information.
Conical Maipo volcano rises above the floor of Diamante caldera in this NASA Space Shuttle view (with north to the top). A series of flank vents on the eastern side of the volcano produced lava flows that give the western shoreline of Laguna Maipo and irregular outline; a lava flow in 1826 blocked drainages on the caldera floor, forming the lake. The 15 x 20 km Diamante caldera was formed during a major explosion eruption about 450,000 years ago.

NASA Space Station image ISS009-E-7182, 2004 (
See title for photo information.

Smithsonian Sample Collections Database

There are no samples for Maipo in the Smithsonian's NMNH Department of Mineral Sciences Rock and Ore collection.

Affiliated Sites