Planchón-Peteroa

 

Planchón-Peteroa is a complex volcanic system in the Andes Mountains, featuring multiple overlapping calderas and volcanic edifices. It has a long history of eruptions, with activity spanning thousands of years. The complex includes Volcán Planchón, Volcán Peteroa, and Volcán Azufre, each with distinct characteristics. Known for past caldera-forming eruptions and debris avalanches, Planchón-Peteroa has produced diverse volcanic products, including lava flows, pyroclastic flows, and ashfall. A crater lake within Peteroa adds to the complexity. Recent activity has been characterised by intermittent explosive eruptions and persistent degassing

Location: Andes, Chile
Coordinates: -35.242458, -70.573560
Volcano Type: Complex

 

Planchón-Peteroa’s Location

 

Planchón-Peteroa’s Latest Status

2024: Not Active.

 

Planchón-Peteroa’s Eruptive History

Year Eruptive Activity
1640 Possible eruption, though historical records are limited. May have involved ashfall and minor lava flows.
1751 Possible eruption, with details uncertain. Could have been similar in scale to the 1640 event.
1837 Eruption reported, likely involving lava flows and potentially ashfall. Specifics are scarce due to limited historical documentation.
1850 Eruption with ashfall impacting surrounding areas. The extent and intensity of the ashfall are unknown.
1861 Eruption with lava flows, potentially effusive in nature. The extent and volume of the lava flows are not well documented.
1891 Eruption with ashfall, possibly similar in scale to the 1850 event.
1903 Eruption with ashfall, impacting local areas.
1910 Moderate explosive eruption with ashfall distributed over a wider region. The eruption column height and duration are unknown.
1930 Minor eruption, possibly with limited ash emissions and/or small lava flows.
1952 Minor eruption, similar in scale to the 1930 event.
1960 Explosive eruption with ashfall, potentially triggered by the massive Valdivia earthquake. This eruption may have involved significant ash dispersal and possibly pyroclastic flows, similar to the eruption of Cordón Caulle in the same year.
1991 Ash eruption with a plume reaching 1 km in height. The ashfall caused water contamination in nearby rivers, leading to fish deaths. The eruption may have had a phreatic component (interaction of magma with water).
1998 Period of unrest with ashfall and notable sulfur dioxide emissions. This suggests increased activity within the volcanic system.
2010-2011 Small eruptions with ash emissions, likely phreatomagmatic in nature, indicating interaction between magma and water or ice within the crater. These eruptions produced minor ashfall in surrounding areas.
2018-2019 New eruption with continuous ash emissions and intermittent explosions. Ashfall was reported in nearby areas, causing some disruption to local communities. This eruption highlights the ongoing activity and potential hazards of the complex.

 

Planchón-Peteroa Monitoring

For monitoring of this volcano, please refer to SERNAGEOMIN.

 

Planchón-Peteroa Images