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Last updated November 5, 2012

Volcanoes of Ecuador: Giants of Fire

Volcanoes of Ecuador

Volcanic Activity in Ecuador

Ecuador, located on the Pacific Ring of Fire, is a country marked by intense volcanic activity. It is home to some of the most impressive volcanoes in South America, such as Cotopaxi, one of the highest active volcanoes in the world, and Tungurahua, known for its frequent eruptions. These giants of fire, often snow-covered, shape the Andean landscapes and influence the lives of local populations, both through the risks they pose and the fertile soils they generate. Ecuadorian authorities closely monitor these colossi, particularly through the Geophysical Institute, to prevent disasters and protect neighboring communities. Volcanic activity in Ecuador thus remains a phenomenon that is both fascinating and feared, testifying to the power of nature.

The Pacific Ring of Fire

Pacific Ring of Fire, line of volcanoes, oceanic trenches

All these volcanoes are part of the Pacific Ring of Fire, an immense zone 40,000 km long, which concentrates about 90% of the world's earthquakes and 75% of active volcanoes. In Ecuador, this activity results from the subduction of the Nazca Plate under the South American Plate. This geological dynamic shapes the Andean landscapes but also exposes the country to major natural risks.

The Eight Volcanic Giants of Ecuador

NameAltitude (m)Last EruptionRing of FireStatus
Chimborazo6 263550 AD ± 150 yearsYesInactive
Cotopaxi5 8972022YesActive
Cayambe5 7901786YesPotentially active
Antisana5 7531802YesPotentially active
Altar5 3191460YesInactive
Iliniza Norte5 126PleistoceneYesExtinct
Tungurahua5 0232018YesActive
Sangay5 2302023 (ongoing)YesActive

Description of the Main Volcanoes

1. Chimborazo (6 263 m)

Chimborazo the highest peak in the world

Chimborazo, a majestic giant of the Andes, is the highest point in Ecuador with an altitude of 6,263 meters. Although considered extinct (its last eruption dates back about 1,500 years), it remains a national symbol. Its most fascinating feature is its geographical position: due to the equatorial bulge, its summit is technically the point furthest from the center of the Earth. Its immense ice cap, now receding, feeds several rivers in the surrounding provinces.

2. Cotopaxi (5 897 m)

Cotopaxi Volcano in Ecuador

Cotopaxi, with its perfectly symmetrical cone covered by a glacier, is one of the most active volcanoes in the world. Classified among the Decade Volcanoes, it is under constant surveillance. Its historical eruptions have been devastating, such as the one in 1877. After a period of calm, Cotopaxi showed signs of increased activity in 2015, with a new eruptive phase in 2022. Its proximity to Quito makes it a major risk but also a tourist attraction.

3. Cayambe (5 790 m)

Cayambe Volcano in Ecuador

Cayambe is a unique volcano in the world, as it is crossed by the equatorial line. Although considered potentially active, its last confirmed eruption dates back to the 18th century. It houses an extensive glacier, the third largest in Ecuador. Fumaroles are regularly observed near its summit. Cayambe is also a sacred site for indigenous communities.

4. Sangay (5 230 m)

Sangay Volcano in Ecuador

Sangay, located in the eponymous national park, is one of the most active volcanoes on the planet, in almost continuous eruption since 1934. Its isolation makes it a little-visited site, but its frequent explosions offer an impressive spectacle. Listed as a UNESCO World Heritage site, Sangay is a natural laboratory for the study of volcanism.

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