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  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 0.552°N
  • 77.58°W

  • 3955 m
    12972 ft

  • 352001
  • Latitude
  • Longitude

  • Summit

  • Volcano

The Global Volcanism Program has no activity reports for Soche.

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

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

Basic Data

Volcano Number

Last Known Eruption



6650 BCE

3955 m / 12972 ft


Volcano Types

Lava dome(s)

Rock Types

Andesite / Basaltic Andesite

Tectonic Setting

Subduction zone
Continental crust (> 25 km)


Within 5 km
Within 10 km
Within 30 km
Within 100 km

Geological Summary

Volcán el Soche, a small stratovolcano near the Colombia border, is the northernmost of a chain of Ecuadorian volcanoes east of the principal volcanic axis. The dominantly dacitic Soche volcano was constructed over Paleozoic rocks and has a summit caldera that opens towards the east. A major explosive eruption took place during the early Holocene at about 8600 years BP, depositing tephra NW into Colombia. The ejection of voluminous dacitic airfall pumice and pyroclastic flows was followed by the formation of two lava domes in the caldera.


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

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

Eissen J-P, 2006. (pers. comm.).

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.

INECEL, 1980. Estudio de reconocimiento de los recursos geotermicos de la Republica del Ecuador. Inf Geovulcanologico Realirado Aquater/BRGM/OLADE, unpublished rpt.

Eruptive History

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

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
6650 BCE (?) Unknown Confirmed 5 Radiocarbon (uncorrected)

The Global Volcanism Program has no synonyms or subfeatures listed for Soche.

Photo Gallery

The small forested volcano left of the center of this NASA Landsat image, its eastern (right) flank traversed by a winding road, is Volcán el Soche. This small stratovolcano near the Colombia border lies just west of the Río Chingual, which vertically bisects this image. Soche is the northernmost of a chain of Ecuadorian volcanoes east of the principal volcanic axis and was the source of a major explosive eruption during the early Holocene. The village of La Bonita (lower left-center) lies at the southern end of the volcano.

NASA Landsat7 image (

Smithsonian Sample Collections Database

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

Affiliated Sites

Large Eruptions of Soche 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.