Cerro Blanco

Cerro Blanco (Argentina) is a caldera. It rises to 4,670 m above sea level. The GVP records 1 confirmed eruption in the Holocene, the latest in 2,300 BCE.

Elevation: 4,670 m
Last eruption: 2,300 BCE
Confirmed eruptions: 1
Max VEI: 7
Country: Argentina
Location: 26.77° S, 67.75° W
Region (GVP): Central Andean Volcanic Arc
GVP type: Caldera
Tectonic setting: Subduction zone / Continental crust (> 25 km)
Main rock type: Rhyolite

Show on the timeline GVP entry ↗

Other volcanoes and strong earthquakes within 300 km

Eruption history

VEI – Volcanic Explosivity Index: 0 = lava outpouring, 4 = like Eyjafjallajökull 2010, 6 = like Pinatubo 1991, 7 = like Tambora 1815. The scale is logarithmic – each step is about 10 times more material.

Start	End	VEI	Vent and dating
2,300 BCE ± 160 years	—	7	Isotopic: 14C (calibrated)

Data: Global Volcanism Program, Smithsonian Institution (#355210)