About Mentolat
Mentolat is a stratovolcano rising to 1,660 meters (5,446 feet) in Chile's South America Volcanic Regions. Its last known eruption was in 1710 CE. The volcano has produced 2 recorded eruptions.
Geography & Climate
Mentolat is located in Chile, within the Southern Andean Volcanic Arc of the broader South America Volcanic Regions. Situated at 44.70° S, 73.08° W in the Southern Hemisphere, the volcano lies within a temperate climate zone. With a summit elevation of 1,660 meters above sea level, Mentolat is a moderately sized peak that remains accessible to hikers and researchers for much of the year. The volcanic landform is characterized as a composite, which describes the physical shape and structure of the volcanic edifice as observed from the surface.
Geological Context
Mentolat sits in a subduction zone, where one tectonic plate dives beneath another, creating intense heat and pressure that generates magma. Subduction zones are responsible for many of the world's most explosive volcanoes and deadliest eruptions. For communities in Chile near Mentolat, this tectonic setting means the volcano is capable of producing powerful explosive eruptions, pyroclastic flows, and lahars that can threaten populated areas within tens of kilometers of the summit. The dominant rock type is andesite / basaltic andesite, a dark, fine-grained volcanic rock that forms from rapidly cooling, low-viscosity lava. Basaltic eruptions tend to be less explosive and produce fluid lava flows that can travel long distances. While less immediately dangerous than explosive eruptions, basaltic lava flows can destroy structures and infrastructure in their path, and volcanic gases released during these eruptions can affect air quality over a wide area.
Eruption History Summary
Mentolat has 2 recorded eruptions in the geological database, spanning from 5010 BCE to 1710 CE. These eruptions span roughly 6,720 years of volcanic history.
GVP Reference Summary
Volcán Mentolat is an ice-filled 6-km-wide caldera in the central part of Magdalena Island across the Puyuhuapi strait from Puerto Cisnes. An eruption about 7000 years ago produced a pumice and scoria layer that extends to the SE. A young-looking andesitic lava flow on the W side of the volcano may be its most recent product. Historical reports by Serrano describe an eruption at the beginning of the 18th century that could refer to this lava flow.
— Smithsonian Institution, Global Volcanism Program
2 Recorded Eruptions
| Year | VEI | Type | Area |
|---|---|---|---|
| 1710 | — | Confirmed Eruption | — |
| 5010 BCE | — | Confirmed Eruption | — |
Real-Time Data
USGS Alert Level
Thermal Anomalies
Frequently Asked Questions About Mentolat
Is Mentolat an active volcano?+
Mentolat is classified as active based on credible evidence of past eruptions. Although its last known eruption was in 1710 CE, volcanologists consider it capable of erupting again.
When did Mentolat last erupt?+
The most recent recorded eruption of Mentolat occurred in 1710 CE. The eruption was classified as a "Confirmed Eruption." Mentolat has 2 recorded eruptions in total.
How high is Mentolat?+
Mentolat has a summit elevation of 1,660 meters (5,446 feet) above sea level. At 1,660 meters, it is a moderately sized volcanic peak, roughly comparable to Mount Vesuvius (1,281m).
What type of volcano is Mentolat?+
Mentolat is classified as a Stratovolcano. Stratovolcanoes (also called composite volcanoes) are steep, conical volcanoes built up by many layers of hardened lava, tephra, and volcanic ash. They are among the most common and dangerous types, known for explosive eruptions.
Where is Mentolat located?+
Mentolat is located in Chile, in the South America Volcanic Regions. More specifically, it lies within the Southern Andean Volcanic Arc. Its exact coordinates are -44.700° latitude, -73.080° longitude.
Is it safe to visit Mentolat?+
Mentolat can generally be visited, but as with any volcano, visitors should check local conditions and any advisory notices before traveling. Chile may have specific regulations for accessing volcanic areas. Guided tours are often the safest and most informative way to experience a volcano.
