Cotacachi

Photo of this volcano
Country Ecuador
Volcanic Region Northern Andean Volcanic Arc
Landform | Volc Type Composite | Stratovolcano
Last Known Eruption Pleistocene
Coordinates 0.364°N, 78.351°W
Elevation 4,939 m (16,204 ft)
Volcano Number 352802
Google Earth icon Google Earth Placemark with Features
Citation icon Cite Volcano Profile

Latest Weekly Volcanic Activity Report

The Global Volcanism Program has no Weekly Volcanic Activity Reports available for Cotacachi.

Latest Bulletin Report

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

Weekly Volcanic Activity Reports

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

Bulletin Reports

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

General Information

Eruptive History

The Global Volcanism Program is not aware of any Holocene eruptions from Cotacachi. If this volcano has had large eruptions (VEI >= 4) prior to 12,000 years ago, information might be found on the Cotacachi page in the LaMEVE (Large Magnitude Explosive Volcanic Eruptions) database, a part of the Volcano Global Risk Identification and Analysis Project (VOGRIPA).

Synonyms and Subfeatures

The Global Volcanism Program has no synonyms or subfeatures listed for Cotacachi.

Photo Gallery

Thumbnail Photo (see caption)Sharp-peaked Cotacachi stratovolcano rises above the caldera lake of Cuicocha volcano. The northern caldera wall truncates the flank of the heavily eroded Cotacachi. The caldera was formed during powerful explosive eruptions about 3100 years ago that produced 4.8 cu km of pumice-rich pyroclastic flows and airfall tephra that blanket the surrounding countryside.

Photo by Tom Pierson, 1992 (U.S. Geological Survey).
Thumbnail Photo (see caption)Scenic lake-filled Cuicocha caldera is located at the southern foot of the sharp-peaked Pleistocene Cotacachi stratovolcano. The caldera was created about 3100 years ago and contains a cluster of intra-caldera dacitic lava domes that form two islands in the large lake. A pre-caldera Cuicocha lava dome is situated on the east side of the lake (right). Pyroclastic-flow deposits cover wide areas around the volcano. The northern caldera rim truncates the heavily eroded slopes of Cotocachi volcano.

Photo by Minard Hall, 1985 (Escuela Politécnica Nacional, Quito).
Thumbnail Photo (see caption)The scenic lake-filled Cuicocha caldera is located at the southern foot of the sharp-peaked Pleistocene Cotacachi stratovolcano (top center) about 100 km north of Quito. Farmer's fields encroach on the rim of the 3-km-wide caldera, which was created during a major explosive eruption about 3100 years ago. Dacitic lava domes form two forested islands in the caldera lake. Pyroclastic-flow deposits from the caldera-forming eruptions cover wide areas in now populated areas below the low-rimmed caldera.

Photo by Patricio Ramon, 2003 (Instituto Geofisca, Escuela Politecnica Nacional).

Smithsonian Sample Collections Database

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

External Sites