Global Volcanism Program

The Global Volcanism Program has no activity reports for Mentolat.

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

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

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

Basic Data

Volcano Number

Last Known Eruption

Elevation

Latitude
Longitude

358054

1710 CE

1660 m / 5445 ft

44.7°S
73.08°W

Volcano Types

Stratovolcano
Caldera

Rock Types

Major
Andesite / Basaltic Andesite
Basalt / Picro-Basalt

Tectonic Setting

Subduction zone
Continental crust (> 25 km)

Population

Within 5 km
Within 10 km
Within 30 km
Within 100 km

0
8
183
23,675

Geological 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.

References

The following references have all been used during the compilation of data for this volcano, it is not a comprehensive bibliography.

Fuenzalida R, Etchart H, 1976. Evidencias de migracion volcanica reciente desde la linea de volcanes de la Patagonia Chilena. In: Gonzalez-Ferran O (ed) Proc Symp Andean & Antarctic Volcanology Problems (Santiago, Chile, Sept 1974), Rome: IAVCEI, p 392-397.

Gonzalez-Ferran O, 1995. Volcanes de Chile. Santiago: Instituto Geografico Militar, 635 p.

IAVCEI, 1973-80. Post-Miocene Volcanoes of the World. IAVCEI Data Sheets, Rome: Internatl Assoc Volc Chemistry Earth's Interior.

Moreno H, 1985. (pers. comm.).

Naranjo J A, Stern C R, 2004. Holocene tephrochronology of the southernmost part (42° 30' - 45° S) of the Andean Southern Volcanic Zone. Rev Geol Chile, 31: 225-240.

Eruptive History

There is data available for 2 Holocene eruptive periods.

Start Date	Stop Date	Eruption Certainty	VEI	Evidence	Activity Area or Unit
1710 ± 5 years	Unknown	Confirmed		Historical Observations
5010 BCE ± 50 years	Unknown	Confirmed		Radiocarbon (uncorrected)

Deformation History

There is no Deformation History data available for Mentolat.

Emission History

There is no Emissions History data available for Mentolat.

Photo Gallery

Volcán Mentolat is an ice-filled 6-km-wide caldera in the central part of Magdalena Island, across the Puyuhuapi strait from the town of Puerto Cisnes. A young-looking andesitic lava flow on the west side of the volcano may be its most recent product. Historical reports describe an eruption at the beginning of the 18th century that could refer to this lava flow.

Photo by Oscar González-Ferrán (University of Chile).

Smithsonian Sample Collections Database

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

Affiliated Sites

DECADE Data

The DECADE portal, still in the developmental stage, serves as an example of the proposed interoperability between The Smithsonian Institution's Global Volcanism Program, the MAGA Database, and the EarthChem Geochemical Portal. The Deep Earth Carbon Degassing (DECADE) initiative seeks to use new and established technologies to determine accurate global fluxes of volcanic CO₂ to the atmosphere, but installing CO₂ monitoring networks on 20 of the world's 150 most actively degassing volcanoes. The group uses related laboratory-based studies (direct gas sampling and analysis, melt inclusions) to provide new data for direct degassing of deep earth carbon to the atmosphere.

WOVOdat
   Single Volcano View
   Temporal Evolution of Unrest
   Side by Side Volcanoes

WOVOdat is a database of volcanic unrest; instrumentally and visually recorded changes in seismicity, ground deformation, gas emission, and other parameters from their normal baselines. It is sponsored by the World Organization of Volcano Observatories (WOVO) and presently hosted at the Earth Observatory of Singapore.

Large Eruptions of Mentolat

Information about large Quaternary eruptions (VEI >= 4) is cataloged in the Large Magnitude Explosive Volcanic Eruptions (LaMEVE) database of the Volcano Global Risk Identification and Analysis Project (VOGRIPA).

MIROVA

Middle InfraRed Observation of Volcanic Activity (MIROVA) is a near real time volcanic hot-spot detection system based on the analysis of MODIS (Moderate Resolution Imaging Spectroradiometer) data. In particular, MIROVA uses the Middle InfraRed Radiation (MIR), measured over target volcanoes, in order to detect, locate and measure the heat radiation sourced from volcanic activity.

MODVOLC Thermal Alerts

Using infrared satellite Moderate Resolution Imaging Spectroradiometer (MODIS) data, scientists at the Hawai'i Institute of Geophysics and Planetology, University of Hawai'i, developed an automated system called MODVOLC to map thermal hot-spots in near real time. For each MODIS image, the algorithm automatically scans each 1 km pixel within it to check for high-temperature hot-spots. When one is found the date, time, location, and intensity are recorded. MODIS looks at every square km of the Earth every 48 hours, once during the day and once during the night, and the presence of two MODIS sensors in space allows at least four hot-spot observations every two days. Each day updated global maps are compiled to display the locations of all hot spots detected in the previous 24 hours. There is a drop-down list with volcano names which allow users to 'zoom-in' and examine the distribution of hot-spots at a variety of spatial scales.

EarthChem

EarthChem develops and maintains databases, software, and services that support the preservation, discovery, access and analysis of geochemical data, and facilitate their integration with the broad array of other available earth science parameters. EarthChem is operated by a joint team of disciplinary scientists, data scientists, data managers and information technology developers who are part of the NSF-funded data facility Integrated Earth Data Applications (IEDA). IEDA is a collaborative effort of EarthChem and the Marine Geoscience Data System (MGDS).