Carrán-Los Venados

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  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 40.35°S
  • 72.07°W

  • 1114 m
    3654 ft

  • 357140
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

The Global Volcanism Program has no activity reports for Carrán-Los Venados.

The Global Volcanism Program has no Weekly Reports available for Carrán-Los Venados.

Index of Monthly Reports

Reports are organized chronologically and indexed below by Month/Year (Publication Volume:Number), and include a one-line summary. Click on the index link or scroll down to read the reports.

04/1979 (SEAN 04:04) Voluminous ash emission and lava flow

05/1979 (SEAN 04:05) Eruption resumes

07/1979 (SEAN 04:07) Eruption ends

12/1979 (SEAN 04:12) Fumarolic activity continues


Contents of Monthly Reports

All information contained in these reports is preliminary and subject to change.

All times are local (= UTC - 4 hours)

04/1979 (SEAN 04:04) Voluminous ash emission and lava flow

An eruption of pyroclastics from Mirador, one of the craters in the Carrán volcanic group (figure 1), began at 0200 on [14] April, preceded by local seismicity. The column of gas and ash reached altitudes of 3-4 km, and was accompanied by gas explosions in the mouth of the crater. After about 40 hours, lava began to flow SSW, traveling about 500 m by the 17th. Voluminous ash emission persisted, with explosions occurring every 5 minutes, and local seismicity was continuous. The activity continued to increase through 18 April. Ash covered agricultural land near the volcano. No one has been killed, but authorities have evacuated 125 persons from the area.

Figure 1. Sketch map of Mirador (Carran-Los Venados group) and vicinity, from Lopez and Moreno (1981) showing eruption sites and flows from the 1979 eruption. Six-digit numbers mark sample localities.

The most recent previous activity in the area was an explosive eruption in 1955, in which two persons were killed. At least two of the volcanic features in the Carrán group are maars.

Reference. López, L. and Moreno, H., 1981, Erupción de 1979 del volcán Mirador, Andes del Sur, 40°21'S: características geoquímicas de las lavas y xenolitos graníticos: Revista Geológica de Chile, no. 13-14, p. 17-33.

Information Contact: O. González-Ferrán, Univ. de Chile, Santiago.

05/1979 (SEAN 04:05) Eruption resumes

Local authorities report that the eruption of Mirador crater resumed on 12 May (figure 15-17) [see also 4:7] and was continuing 24 hours later. Incandescent material rose 30 m above the vent and a series of low-intensity tremors occurred. Subterranean rumbling, followed by several hours of earthquakes, was reported from Río Buenos, about 40 km away. Carrán's vigorous mid-April eruption had stopped after a few days.

Information Contact: Latin Radio Network, Buenos Aires, Argentina.

07/1979 (SEAN 04:07) Eruption ends

The eruption of Mirador began violently on [14] April, but activity declined quickly to more moderate levels. Explosions and accompanying seismicity then gradually decreased in frequency and intensity until the eruption ended on 25 May. Ash deposits were 2-3 cm thick at the base of Mirador and ash fell as much as 20 km away. A small amount of lava (andesitic basalt in hand specimen) flowed NE and SE.

Further References. Moreno, H., 1980, La erupción del volcán Mirador en Abril-Mayo de 1979, lago Ranco-Rininahue, Andes del Sur: Comunicaciones, Universidad de Chile, no. 28, p. 1-23.

Information Contact: O. González-Ferrán, Univ. de Chile, Santiago.

12/1979 (SEAN 04:12) Fumarolic activity continues

Fumarolic activity has persisted from Mirador crater since its ash and lava eruption of April-May. A dense, yellowish-white steam cloud emerged from Mirador's summit during a visit by L. López, A. Lahsen, and H. Moreno on 1 November. The surfaces of two lava flows extruded on 12 May were covered by a yellowish salt deposit composed mainly of iron chlorides.

Information Contact: H. Moreno R., Univ. de Chile, Santiago.

The Carrán-Los Venados volcano group includes a group of about 50 basaltic to basaltic-andesite scoria cones, maars, and a small stratovolcano that are broadly aligned along a 17-km-long ENE-WSW trend ESE of Lago Ranco. The volcano group occupies a low-lying area north of the more topographically prominent Cordón Caulle-Puyehue volcanic chain, and many of the vents are postglacial in age. The Mirador scoria cone and two maars, Riñinahue and Carrán, were formed during eruptions in the 20th century. These historical eruptions were concentrated where the regional Liquine-Ofqui fault zone intersects the alignment of volcanic vents.

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

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
1979 Apr 14 1979 May 20 Confirmed 2 Historical Observations Mirador
1955 Jul 27 1955 Nov 12 Confirmed 4 Historical Observations Carrán Maar
1907 Apr 9 1908 Feb (in or after) Confirmed 3 Historical Observations Riñinahue Maar

This compilation of synonyms and subsidiary features may not be comprehensive. Features are organized into four major categories: Cones, Craters, Domes, and Thermal Features. Synonyms of features appear indented below the primary name. In some cases additional feature type, elevation, or location details are provided.



Synonyms
Nilahue


Cones
Feature Name Feature Type Elevation Latitude Longitude
Bellavista, Cerro Cinder cone 646 m 40° 21' 15" S 72° 1' 30" W
Chancho, Volcán Cinder cone 672 m 40° 21' 30" S 72° 2' 30" W
Chascon Norte, Cerro Cinder cone 723 m 40° 20' 49" S 72° 1' 50" W
Chascon Sur, Cerro Cinder cone 705 m 40° 21' 5" S 72° 1' 30" W
Guindos, Los
    Carrán, Cerro
Stratovolcano 1114 m 40° 18' 29" S 72° 4' 0" W
Lumanto, Cerro Cinder cone 675 m 40° 20' 50" S 72° 2' 45" W
Media Luna, Volcán Cone 759 m 40° 23' 20" S 72° 1' 0" W
Mirador Cinder cone 700 m 40° 21' 30" S 72° 3' 30" W
Negro, Cerro Cinder cone 1055 m 40° 22' 30" S 72° 8' 35" W
Pichi, Volcán Cinder cone 370 m 40° 22' 30" S 72° 12' 0" W
Providencia, Volcán Cinder cone 296 m 40° 20' 20" S 72° 0' 30" W
Puchura, Volcán Cinder cone 713 m 40° 21' 30" S 72° 7' 30" W
Quirrasco, Volcán Cinder cone 478 m 40° 21' 0" S 72° 9' 0" W
Taza, Cerro la Cinder cone 402 m 40° 20' 45" S 72° 0' 30" W
Yolye, Volcán Cinder cone 515 m 40° 20' 10" S 72° 4' 0" W


Craters
Feature Name Feature Type Elevation Latitude Longitude
Carrán
    Pillanilahue
Maar 276 m 40° 21' 45" S 72° 4' 15" W
Negro, Laguna Maar 300 m 40° 22' 0" S 72° 4' 0" W
Pocura, Laguna Maar 486 m 40° 20' 45" S 72° 5' 45" W
Riñinahue
    Corral Quemado
    Quemado
Maar 347 m 40° 22' 15" S 72° 4' 45" W
Venados, Los Fissure vent 709 m 40° 23' 50" S 72° 9' 0" W
The third historical eruption of the Carran-Los Venados volcanic field began with strombolian explosions at 0100 hrs on April 14, 1979. A 3-4 km high eruption column produced ashfall that covered agricultural lands near the volcano. A new pyroclastic cone rose at the site of a prehistorical cone. Lava flowed 1 km to the SSW from the new breached crater in April. Beginning on May 12, lava flows traveled short distances from the breached crater to the SE and from the crater rim to the NE base of the cone. The eruption ended on May 20.

Photo by Hugo Moreno, 1979 (University of Chile).
An ash plume rises from Volcan Mirador, a pyroclastic cone that formed during an eruption in 1979. The Carran-Los Venados volcano group includes about 50 scoria cones, maars, and a small stratovolcano that are broadly aligned along a 17-km-long ENE-WSW trend. The volcano group occupies a low-lying area north of the Cordón Caulle-Pueyhue volcanic chain. In addition to the 1979 Mirador scoria cone, two maars, Rininahue and Carran, were formed during eruptions in the 20th century.

Photo by Hugo Moreno, 1979 (University of Chile).
Incandescent ejecta are visible at the base of a strombolian eruption column from Volcán Mirador in 1979. The eruption began on April 14 at the site of a prehistorical cinder cone. Almost constant explosive activity produced a new 200-m-high cinder cone, Volcán Mirador, and deposited ash over agricultural areas, prompting the evacuation of 125 persons living nearby. Short lava flows traveled to the SE and NE in April and May before the eruption ended on May 20.

Photo by Hugo Moreno, 1979 (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.

Casertano L, 1963a. Chilean Continent. Catalog of Active Volcanoes of the World and Solfatara Fields, Rome: IAVCEI, 15: 1-55.

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

Moreno H, 1974. Airplane flight over active volcanoes of central-south Chile. Internatl Symp Volc Andean & Antarctic Volc Problems Guidebook, Excur D-3, 56 p.

Moreno H, 1980. La erupcion del Volcan Mirador en Abril-Mayo de 1979, Lago Ranco-Rininahue, Andes del Sur. Communicaciones Univ Chile, 28: 1-23.

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

Volcano Types

Pyroclastic cone(s)
Maar(s)
Stratovolcano

Tectonic Setting

Subduction zone
Continental crust (> 25 km)

Rock Types

Major
Basalt / Picro-Basalt
Andesite / Basaltic Andesite

Population

Within 5 km
Within 10 km
Within 30 km
Within 100 km
4,840
4,840
9,001
452,820

Affiliated Databases

Large Eruptions of Carrán-Los Venados 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.