Tinguiririca

Photo of this volcano
  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 34.814°S
  • 70.352°W

  • 4280 m
    14038 ft

  • 357030
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

Most Recent Bulletin Report: November 1994 (BGVN 19:11) Citation IconCite this Report


Phreatic explosion in January 1994

On about 15 January 1994, Bolivar Miranda, a SERNAGEOMIN chemical engineer, observed a 5-km-high explosive column rising above Tinguiririca from a location 65 km W. A photograph taken by his son, Matías, showed a distinct white cauliflower-shaped column on a clear day. Based on the shape and growth of the column, this eruption was most likely phreatic.

Information Contacts: J. Naranjo, SERNAGEOMIN, Santiago.

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

Bulletin Reports - Index


Reports are organized chronologically and indexed below by Month/Year (Publication Volume:Number), and include a one-line summary. Click on the index link or scroll down to read the reports.

11/1994 (BGVN 19:11) Phreatic explosion in January 1994




Information is preliminary and subject to change. All times are local (unless otherwise noted)


November 1994 (BGVN 19:11) Citation IconCite this Report


Phreatic explosion in January 1994

On about 15 January 1994, Bolivar Miranda, a SERNAGEOMIN chemical engineer, observed a 5-km-high explosive column rising above Tinguiririca from a location 65 km W. A photograph taken by his son, Matías, showed a distinct white cauliflower-shaped column on a clear day. Based on the shape and growth of the column, this eruption was most likely phreatic.

Information Contacts: J. Naranjo, SERNAGEOMIN, Santiago.

Eruptive History


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


Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
[ 1994 Jan 15 ] [ 1994 Jan 15 ] Uncertain 2  
1917 Unknown Confirmed 1 Historical Observations

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


Persistent fumarolic activity occurs in the summit crater of Tinguiririca volcano.

Photo by Wolfgang Foerster, courtesy of Oscar González-Ferrán (University of Chile).
See title for photo information.
Tinguiririca is composed of at least seven Holocene scoria cones constructed along a N-S fissure over an eroded Pleistocene stratovolcano. The central part of the chain from Tinguiririca to Fray Carlos is seen in this view. Sulfur deposits are found on the western flanks of the summit cones. A single historical eruption from Tinguiririca was recorded in 1917.

Photo by Oscar González-Ferrán (University of Chile).
See title for photo information.
Alternating lava flows and pyroclastic deposits are exposed in the crater walls of Tinguiririca volcano. Hydrothermally altered rocks are prominent in the lower parts of the crater walls.

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

Smithsonian Sample Collections Database


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

Affiliated Sites