Chachimbiro

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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.

Basic Data

Volcano Number

Last Known Eruption

Elevation

Latitude
Longitude
352002

3740 BCE

4106 m / 13468 ft

0.468°N
78.287°W

Volcano Types

Stratovolcano
Caldera
Lava dome(s)

Rock Types

Major
Dacite
Andesite / Basaltic Andesite

Tectonic Setting

Subduction zone
Continental crust (> 25 km)

Population

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

Geological Summary

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.

References

The following references have all been used during the compilation of data for this volcano, it is not a comprehensive bibliography.

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.

Eruptive History


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

Photo Gallery


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).

Smithsonian Sample Collections Database


A listing of samples from the Smithsonian collections will be available soon.

Affiliated Sites

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).
MODVOLC - HIGP MODIS Thermal Alert System Using infrared satellite Moderate Resolution Imaging Spectroradiometer (MODIS) data, scientists at the Hawai'i Institute of Geophysics and Planetology, University of Hawai'i, developed an automated system called MODVOLC to map thermal hot-spots in near real time. For each MODIS image, the algorithm automatically scans each 1 km pixel within it to check for high-temperature hot-spots. When one is found the date, time, location, and intensity are recorded. MODIS looks at every square km of the Earth every 48 hours, once during the day and once during the night, and the presence of two MODIS sensors in space allows at least four hot-spot observations every two days. Each day updated global maps are compiled to display the locations of all hot spots detected in the previous 24 hours. There is a drop-down list with volcano names which allow users to 'zoom-in' and examine the distribution of hot-spots at a variety of spatial scales.
MIROVA Middle InfraRed Observation of Volcanic Activity (MIROVA) is a near real time volcanic hot-spot detection system based on the analysis of MODIS (Moderate Resolution Imaging Spectroradiometer) data. In particular, MIROVA uses the Middle InfraRed Radiation (MIR), measured over target volcanoes, in order to detect, locate and measure the heat radiation sourced from volcanic activity.