Chachimbiro

Photo of this volcano
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  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 0.468°N
  • 78.287°W

  • 4106 m
    13468 ft

  • 352002
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

The Global Volcanism Program has no activity reports for Chachimbiro.

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

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

The Chachimbiro volcanic complex lies about 25 km NW of the city of Ibarra. Late Pleistocene collapse of the andesitic Huanguillaro stratovolcano produced a 6.8 cu km debris-avalanche deposit and a 4-km-wide avalanche caldera open to the east that has largely been filled by lava domes, including the rhyodacitic Hugá lava dome. The avalanche deposit is overlain by three large ignimbrites and pyroclastic-flow deposits related to dome growth. The late Pleistocene-to-Holocene, NNE-trending dacitic Chachimbiro-Pucará line of lava domes includes the Pitzantzi lava dome, which erupted about 5700 years ago, producing an ash deposit that extends to the NW. Hot springs and thermal areas are present at the Chachimbiro complex.

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

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
3740 BCE (?) Unknown Confirmed   Radiocarbon (uncorrected) NNE flank (Pitzantzi lava dome)

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.



Cones
Feature Name Feature Type Elevation Latitude Longitude
Huanguillaro Stratovolcano 4106 m 0° 28' 0" N 78° 19' 0" W


Domes
Feature Name Feature Type Elevation Latitude Longitude
Anburo
    Puncara
Dome
Cochapata Dome
Hugá Dome 4009 m 0° 28' 0" N 78° 17' 0" W
Pitzantzi Dome
Rodeopampa, Loma Dome 2812 m 0° 25' 0" N 78° 16' 0" W
San Alfonso Dome
Tababara Dome
Tanguna Dome
Ventanillas Dome
Part of the Chachimbiro volcanic complex, located about 25 km NW of the city of Ibarra, is seen from the south. The late Pleistocene-to-Holocene, NNE-trending dacitic Chachimbiro-Pucará line of lava domes includes the Pitzantzi lava dome, which erupted about 5700 years ago, producing an ash deposit that extends to the NW. Hot springs and thermal areas are present at the Chachimbiro complex. Quarries in the foreground are cut into deposits from the caldera-forming eruption of Cuicocha volcano.

Photo by Lee Siebert, 2006 (Smithsonian Institution).

The following references have all been used during the compilation of data for this volcano, it is not a comprehensive bibliography. Discussion of another volcano or eruption (sometimes far from the one that is the subject of the manuscript) may produce a citation that is not at all apparent from the title.

Beate B, 1990. Sequence of explosive products of the Chachimbiro volcanic complex, Ecuador, South America. IAVCEI 1990 Internatl Volc Cong, Mainz, Abs, (unpaginated).

Beate B, 1992. . (pers. comm.).

Beate B, Salgado R, 2005. Geothermal country update for Ecuador, 2000-2005. Proc World Geotherm Cong 2005, Antalya, Turkey, 24-29 April 2005, 5 p.

Hall M L, Mothes P A, 2008b. Volcanic impediments in the progressive development of pre-Columbian civilizations in the Ecuadorian Andes. J Volc Geotherm Res, 176: 344-355.

Volcano Types

Stratovolcano
Caldera
Lava dome(s)

Tectonic Setting

Subduction zone
Continental crust (> 25 km)

Rock Types

Major
Dacite
Andesite / Basaltic Andesite

Population

Within 5 km
Within 10 km
Within 30 km
Within 100 km
125
5,299
356,162
3,253,458

Affiliated Databases

Large Eruptions of Chachimbiro Information about large Quaternary eruptions (VEI >= 4) is cataloged in the Large Magnitude Explosive Volcanic Eruptions (LaMEVE) database of the Volcano Global Risk Identification and Analysis Project (VOGRIPA).
WOVOdat WOVOdat is a database of volcanic unrest; instrumentally and visually recorded changes in seismicity, ground deformation, gas emission, and other parameters from their normal baselines. It is sponsored by the World Organization of Volcano Observatories (WOVO) and presently hosted at the Earth Observatory of Singapore.
EarthChem EarthChem develops and maintains databases, software, and services that support the preservation, discovery, access and analysis of geochemical data, and facilitate their integration with the broad array of other available earth science parameters. EarthChem is operated by a joint team of disciplinary scientists, data scientists, data managers and information technology developers who are part of the NSF-funded data facility Integrated Earth Data Applications (IEDA). IEDA is a collaborative effort of EarthChem and the Marine Geoscience Data System (MGDS).
Smithsonian Collections Search the Smithsonian's NMNH Department of Mineral Sciences collections database. Go to the "Search Rocks and Ores" tab and use the Volcano Name drop-down to find samples.