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The Smithsonian is closed due to a United States federal government shutdown. Global Volcanism Program staff are out of the office and unable to maintain this site until further notice. The Smithsonian / USGS Weekly Volcanic Activity Reports are suspended because USGS staff have also been furloughed.


Photo of this volcano
  • Ecuador
  • South America
  • Stratovolcano
  • Unknown - Evidence Credible
  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 0.659°S
  • 78.714°W

  • 5248 m
    17218 ft

  • 352041
  • Latitude
  • Longitude

  • Summit

  • Volcano

The Global Volcanism Program has no activity reports for Illiniza.

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

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

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

The Global Volcanism Program is not aware of any Holocene eruptions from Illiniza. If this volcano has had large eruptions (VEI >= 4) prior to 10,000 years ago, information might be found on the Illiniza page in the LaMEVE (Large Magnitude Explosive Volcanic Eruptions) database, a part of the Volcano Global Risk Identification and Analysis Project (VOGRIPA).

Deformation History

There is no Deformation History data available for Illiniza.

Emission History

There is no Emissions History data available for Illiniza.

Photo Gallery

Illiniza Sur, seen here from the Interandean valley to its east, is the highest of the twin peaks of Illiniza volcano. A lava dome on its southern flank, Rasuyacu, erupted during the Holocene. Illiniza itself may have had relatively youthful eruptions, although none have been dated.

Photo by Lee Siebert, 1978 (Smithsonian Institution).
See title for photo information.
The twin peaks of Illiniza volcano form prominent landmarks west of the Interandean Valley. Sharp-peaked, snow-covered Illiniza Sur (right) is the higher of the two peaks. It is seen here from the south with Illiniza Norte to its left. Illiniza is largely, if not entirely Pleistocene in age. However, Rasuyacu lava dome on the south flank was active during the Holocene. Recent work suggests that Illiniza itself, which is substantially eroded, may have had relatively young eruptions.

Photo by Lee Siebert, 1978 (Smithsonian Institution).
See title for photo information.
GVP Map Holdings

The Global Volcanism Program has no maps available for Illiniza.

Smithsonian Sample Collections Database

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

Affiliated Sites