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  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 19.15°S
  • 68.83°W

  • 5550 m
    18204 ft

  • 355030
  • Latitude
  • Longitude

  • Summit

  • Volcano

The Global Volcanism Program has no activity reports for Isluga.

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

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

Basic Data

Volcano Number

Last Known Eruption



1913 CE

5550 m / 18204 ft


Volcano Types


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

The broad Isluga volcano lies 7 km west of the Chile/Bolivia border at the west end of a group of volcanoes extending to Tata Sabaya volcano in Bolivia. The 5550-m-high Isluga stratovolcano contains a well-preserved, 400-m-wide summit crater at the western end of the elongated, snow-covered summit region. Numerous postglacial lava flows, many showing distinct levees, are most prominent along a broad front on the lower southern flank. Activity from the summit crater was reported in the 19th and 20th centuries. A lava flow in 1878 destroyed several towns.


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

Casertano L, 1963a. Chilean Continent. Catalog of Active Volcanoes of the World and Solfatara Fields, Rome: IAVCEI, 15: 1-55.

de Silva S L, Francis P W, 1991. Volcanoes of the Central Andes. Berlin: Springer-Verlag, 216 p.

Gonzalez-Ferran O, 1995. Volcanes de Chile. Santiago: Instituto Geografico Militar, 635 p.

Eruptive History

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

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
[ 1960 ] [ Unknown ] Uncertain 2  
1913 Unknown Confirmed 2 Historical Observations
1885 Unknown Confirmed 1 Historical Observations
1878 Feb Unknown Confirmed 2 Historical Observations
1877 Unknown Confirmed 2 Historical Observations
1869 Aug Unknown Confirmed 2 Historical Observations
1868 Unknown Confirmed 2 Historical Observations
1863 Aug 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.


Islonga | Isluca

Photo Gallery

The broad Isluga volcanic complex in the center of this NASA Space Shuttle image (with north to the upper right) lies in Chile at the west end of a group of volcanoes extending into Bolivia to Tata Sabaya volcano (extreme lower-right). The snow-capped peak across the valley east of Isluga is Cabaray volcano. The 5550-m-high historically active Isluga stratovolcano contains numerous postglacial lava flows with distinct levees that are visible in this image along a broad front on the lower southern flank.

NASA Space Shuttle image ISS009-E-6849, 2004 (
A long E-W-trending volcanic chain extends across the border between Chile and Bolivia in this NASA Space Shuttle image (with north to the upper right). The chain extends from historically active Isluga volcano (upper left) to eroded Saxani volcano at the lower right. The smaller volcano immediately to the west of Saxani with a sharp shadow is the steep-sided Tata Sabaya volcano. Tata Sabaya was the source of a major debris-avalanche deposit (bottom center) that forms the small dark-colored hills on the white floor of Salar de Coipasa.

NASA Space Shuttle image ISS009-E-6849, 2004 (

Smithsonian Sample Collections Database

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

Affiliated Sites

Large Eruptions of Isluga 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.