San Pedro

Photo of this volcano
  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 21.88°S
  • 68.4°W

  • 6145 m
    20156 ft

  • 355070
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

The Global Volcanism Program has no activity reports for San Pedro.

The Global Volcanism Program has no Weekly Reports available for San Pedro.

The Global Volcanism Program has no Bulletin Reports available for San Pedro.

Eruptive History


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


Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
1960 Dec 2 Unknown Confirmed 2 Historical Observations
1938 Feb Unknown Confirmed 2 Historical Observations
[ 1923 ] [ Unknown ] Uncertain    
[ 1917 ] [ Unknown ] Uncertain    
[ 1916 ] [ Unknown ] Uncertain    
1911 Sep Unknown Confirmed 2 Historical Observations
1901 May 25 1901 Aug Confirmed 2 Historical Observations
1891 (?) Unknown Confirmed 2 Historical Observations
1877 (?) Unknown Confirmed 2 Historical Observations
[ 1870 ] [ 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 composite volcano of San Pedro in the arid Atacama desert of northern Chile is one of the world's highest historically active volcanoes. The 6145-m-high San Pedro (left) is located to the west of its older twin volcano, 6092-m-high San Pablo (center). The youngest cone of San Pedro was constructed within the horseshoe-shaped crater left by the collapse of an older edifice, which produced a large debris avalanche to the west. Reports of variable reliability mention historical eruptions in the 19th and 20th centuries.

Photo by Oscar González-Ferrán (University of Chile).
See title for photo information.

Smithsonian Sample Collections Database


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

Affiliated Sites