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  • Ecuador
  • Ecuador
  • Stratovolcano
  • 550 CE
  • Country
  • Subregion Name
  • Primary Volcano Type
  • Last Known Eruption
  • 1.464°S
  • 78.815°W

  • 6310 m
    20697 ft

  • 352071
  • Latitude
  • Longitude

  • Summit

  • Volcano

There are no activity reports for Chimborazo.

 Available Weekly Reports

There are no Weekly Reports available for Chimborazo.

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

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
0550 ± 150 years Unknown Confirmed   Tephrochronology
0270 ± 150 years Unknown Confirmed   Radiocarbon (corrected)
2500 BCE ± 1000 years Unknown Confirmed   Tephrochronology
4130 BCE ± 150 years Unknown Confirmed   Radiocarbon (corrected)
5410 BCE ± 75 years Unknown Confirmed   Radiocarbon (corrected)
7500 BCE ± 1000 years Unknown Confirmed   Tephrochronology

The following references are the sources used for data regarding this volcano. References are linked directly to our volcano data file. Discussion of another volcano or eruption (sometimes far from the one that is the subject of the manuscript) may produce a citation that is not at all apparent from the title. Additional discussion of data sources can be found under Volcano Data Criteria.

Barba D, 2004. . (pers. comm.).

Barba D, Robin C, Samaniego P, Eissen J-P, 2008. Holocene recurrent explosive activity at Chimborazo volcano (Ecuador). J Volc Geotherm Res, 176: 27-35.

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.

Beate B, von Hillebrandt-M C G, Hall M L, 1990. Mapa de los peligros volcanicos potenciales asociados con el volcan Chimborazo. Inst Geof Escuela Politecnica Nac Ecuador, 1:50,000 map and text.

Bernard B, van Wyk de Vries B, Barba D, Leyrit H, Robin C, Alcaraz S, Samaniego P, 2008. The Chimborazo sector collapse and debris avalanche: deposit characteristics as evidence of emplacment mechanisms. J Volc Geotherm Res, 176: 36-43.

Clapperton C M, 1990. Glacial and volcanic geomorphology of the Chimborazo-Carihuairazo massif, Ecuadorian Andes. Trans Roy Soc Edinburgh: Earth Sci, 81: 91-116.

Eissen J-P, Barba D, Bernard B, 2006. Chimborazo volcano: late Pleistocene and Holocene activity. Cities on Volcanoes 4, Quito, Ecuador, 23-27 Jan, 2006, Field trip A2: 1-23.

Hall M L, 1977. El Volcanismo en El Ecuador. Quito: Biblioteca Ecuador, 120 p.

IAVCEI, 1973-80. Post-Miocene Volcanoes of the World. IAVCEI Data Sheets, Rome: Internatl Assoc Volc Chemistry Earth's Interior..

Kilian R, Pichler H, 1987. El Chimborazo de Humboldt y el desarrollo de otros volcanes grandes en el Ecuador. In: {Investigaciones Alemanas Recientes en America Latina}, Bonn: Geol Deut Ferschungsgemeinschaft, p 25-34.

Samaniego P, Eissen J-P, Le Pennec J-L, Hall M L, Monzier M, Mothes P, Ramon P, Robin C, Egred J, Molina I, Yepes H, 2003. Los peligros volcanicos asociados con el Tungurahua. Inst Geofis Escuela Politecnica Nac, Inst Recherche Devel, 1: 1-108.

Glacier-clad, 6310-m-high Chimborazo, Ecuador's highest volcano, anchors the southern end of the country's "Avenue of Volcanoes" 30 km NW of the city of Riobamba. The dominantly andesitic-to-dacitic Chimborazo volcano is mostly of Pliocene-to-Pleistocene age. The volcano collapsed about 35,000 years ago, producing a major debris avalanche, whose deposits underlie Riobamba and temporarily dammed the Río Chambo, producing an ephemeral lake. Subsequent eruptions have been dominantly andesitic and constructed three edifices along an east-west line, the youngest and westernmost of which forms the current summit of Chimborazo. Although activity was at one time thought to have ceased during the very latest Pleistocene, recent work indicates that Chimborazo erupted more than a half dozen times during the Holocene, producing pyroclastic surges that reached down to 3800 m elevation.