Macá

Photo of this volcano
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  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 45.1°S
  • 73.17°W

  • 2960 m
    9709 ft

  • 358056
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

The Global Volcanism Program has no activity reports for Macá.

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

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

Volcán Macá rises to 2960 m NW of Puerto Aisén and is the highest volcano between Lanín and Lautaro. This glacier-covered, basaltic-to-dacitic stratovolcano lies within a caldera and contains a summit lava dome. Five flank cinder cones and lava domes lie along a NE-trending fissure that extends 15 km from the summit SW to Bahía Pérez. The volcano lies along the regional Liquiñe-Ofqui fault zone, and a lava flow from a cinder cone at Bahía Pérez erupted as recently as between 1450 and 1670 AD.

Summary of Holocene eruption dates and Volcanic Explosivity Indices (VEI).

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
1560 ± 110 years Unknown Confirmed   Radiocarbon (corrected) SW flank (Bahía Pérez)
0410 ± 50 years Unknown Confirmed   Radiocarbon (uncorrected) MAC1 tephra

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

Volcán Macá, the highest volcano between Lanín and Lautaro, rises to 2960 m NW of Puerto Aisén. Little is known of the geologic history of this glacier-covered stratovolcano, which contains a summit lava dome and flank cinder cones.

Photo by John Davidson, University of Michigan (courtesy of Hugo Moreno, University of Chile).
Volcán Cay (upper left), is located east of Macá volcano (lower right) and NW of the town of Puerto Aisén. The basaltic and dacitic stratovolcano has an explosion crater that is open to the east, and about a half dozen explosion craters and pyroclastic cones lie along a fissure trending SW of the summit. Another 10 basaltic pyroclastic cones are located along second parallel fissure 5 km to the SE that is part of the major regional Liquiñe-Ofqui fault zone.

Photo by Oscar González-Ferrán (University of Chile).
Snow-mantled Volcán Maca, the highest volcano between Lanín and Lautaro, rises to 2960 m NW of Puerto Aisén. This glacier-covered, basaltic-to-andesitic stratovolcano lies within a caldera and contains a summit lava dome. Five flank cinder cones and lava domes lie along a NE-trending fissure that extends 15 km from the summit. The volcano lies along the regional Liquiñe-Ofqui fault zone. Volcan Cay (far right) lies to the NE of Maca.

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

The following references have all been used during the compilation of data for this volcano, it is not a comprehensive bibliography. Discussion of another volcano or eruption (sometimes far from the one that is the subject of the manuscript) may produce a citation that is not at all apparent from the title.

Gonzalez-Ferran O, 1972. Distribucion del volcanismo activo de Chile y la reciente erupcion del Volcan Villarrica. Instituto Geog Militar Chile, O/T 3491.

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

Gutierrez F, Giocada A, Gonzalez Ferran O, Lahsen A, Mazzuoli R, 2005. The Hudson volcano and surrounding monogenetic centres (Chilean Patagonia): an example of volcanism associated with ridge-trench collision environment. J Volc Geotherm Res, 145: 207-233.

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.

Volcano Types

Stratovolcano
Caldera
Lava dome(s)
Cinder cone(s)

Tectonic Setting

Subduction zone
Continental crust (> 25 km)

Rock Types

Major
Basalt / Picro-Basalt
Andesite / Basaltic Andesite
Dacite

Population

Within 5 km
Within 10 km
Within 30 km
Within 100 km
0
0
375
26,903

Affiliated Databases

Large Eruptions of Macá 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).
WOVOdat 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.
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).
Smithsonian Collections Search the Smithsonian's NMNH Department of Mineral Sciences collections database. Go to the "Search Rocks and Ores" tab and use the Volcano Name drop-down to find samples.