Photo of this volcano
  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 0.85°S
  • 78.9°W

  • 3914 m
    12838 ft

  • 352060
  • Latitude
  • Longitude

  • Summit

  • Volcano

The Global Volcanism Program has no activity reports for Quilotoa.

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

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

Eruptive History

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

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
[ 1797 Feb 4 ] [ Unknown ] Uncertain    
[ 1759 ] [ Unknown ] Uncertain 2  
[ 1740 Dec ] [ Unknown ] Uncertain 2  
[ 1725 ] [ Unknown ] Uncertain 2  
[ 1660 Nov 28 ] [ Unknown ] Discredited    
1280 (?) Unknown Confirmed 6 Radiocarbon (corrected)

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.

Photo Gallery

Quilotoa is a truncated, forested dacitic cone containing a steep-walled, 3-km-wide caldera filled by a 250-m-deep lake. Lava domes form the caldera's perimeter and occupy its floor. Its most recent large eruption about 800 years ago produced voluminous pyroclastic flows, lahars that reached the Pacific Ocean, and one of the largest airfall-tephra deposits of the northern Andes. Reports of historical eruptions from the caldera lake are somewhat ambiguous. Fumaroles are present on the lake floor and hot springs occur on the eastern flank.

Photo by Minard Hall, 1973 (Escuela Polit├ęcnica Nacional, Quito).
See title for photo information.

Smithsonian Sample Collections Database

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

Affiliated Sites