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Tolhuaca

Photo of this volcano
  • Country
  • Volcanic Region
  • Landform | Volc Type
  • Last Known Eruption
  • 38.31°S
  • 71.645°W

  • 2,739 m
    8,986 ft

  • 357093
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number


Most Recent Bulletin Report: March 1987 (SEAN 12:03) Citation IconCite this Report

Active solfatara field found

An active solfataric field was detected in one of Tolguaca's NW craters (at 38.29°S, 71.67°W) during a March 1986-January 1987 geologic study. Several vents up to 2 m wide covered an area of ~200 m2. The vents emitted boiling water, high pressure steam, and H2S, with a jet-like noise. The entire area showed intense alteration and a small amount of sulfur deposition.

Information Contacts: H. Moreno, Univ de Chile.

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

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.

03/1987 (SEAN 12:03) Active solfatara field found




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


March 1987 (SEAN 12:03) Citation IconCite this Report

Active solfatara field found

An active solfataric field was detected in one of Tolguaca's NW craters (at 38.29°S, 71.67°W) during a March 1986-January 1987 geologic study. Several vents up to 2 m wide covered an area of ~200 m2. The vents emitted boiling water, high pressure steam, and H2S, with a jet-like noise. The entire area showed intense alteration and a small amount of sulfur deposition.

Information Contacts: H. Moreno, Univ de Chile.

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.

Eruptive History

There is data available for 4 confirmed Holocene eruptive periods.

4000 BCE (after) Confirmed Eruption VEI: 0

Episode 1 | Eruption Pemehue
4000 BCE (after) - Unknown Evidence from Uncertain

List of 2 Events for Episode 1 at Pemehue

Start Date End Date Event Type Event Remarks
   - - - -    - - - - Lava flow
   - - - -    - - - - VEI (Explosivity Index)

4885 BCE ± 243 years Confirmed Eruption VEI: 3

Episode 1 | Eruption
4885 BCE ± 243 years - Unknown Evidence from Uncertain

List of 2 Events for Episode 1

Start Date End Date Event Type Event Remarks
   - - - -    - - - - Explosion
   - - - -    - - - - VEI (Explosivity Index)

5371 BCE ± 243 years Confirmed Eruption VEI: 3

Episode 1 | Eruption
5371 BCE ± 243 years - Unknown Evidence from Uncertain

List of 2 Events for Episode 1

Start Date End Date Event Type Event Remarks
   - - - -    - - - - Explosion
   - - - -    - - - - VEI (Explosivity Index)

5857 BCE ± 243 years Confirmed Eruption VEI: 3

Episode 1 | Eruption
5857 BCE ± 243 years - Unknown Evidence from Uncertain

List of 2 Events for Episode 1

Start Date End Date Event Type Event Remarks
   - - - -    - - - - Explosion
   - - - -    - - - - VEI (Explosivity Index)
Deformation History

There is no Deformation History data available for Tolhuaca.

Emission History

There is no Emissions History data available for Tolhuaca.

GVP Map Holdings

Maps are not currently available due to technical issues.

The maps shown below have been scanned from the GVP map archives and include the volcano on this page. Clicking on the small images will load the full 300 dpi map. Very small-scale maps (such as world maps) are not included.

Smithsonian Sample Collections Database

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

External Sites