Antillanca Volcanic Complex

Photo of this volcano
Country Chile
Volcanic Region Southern Andean Volcanic Arc
Landform | Volc Type Composite | Stratovolcano(es)
Last Known Eruption 230 BCE
Coordinates 40.783°S, 72.15°W
Elevation 1,979 m (6,493 ft)
Volcano Number 357153
Google Earth icon Google Earth Placemark with Features
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Latest Weekly Volcanic Activity Report

Weekly Volcanic Activity Report for 11 March-17 March 2020 Citation IconCite this Report

On 11 March SERNAGEOMIN raised the Alert Level for the Antillanca Volcanic Complex to Yellow because of increased seismicity near Casablanca stratovolcano. Volcano-tectonic (VT) earthquakes began to be recorded in August 2019 and were located about 6.3 km NE of the stratovolcano. During 31 January-1 February a total of 131 VT events were located to the W and NW; the two largest events were M 3.1 and 3.2. A swarm of 73 VT events were detected on 9 March with epicenters located 2.4 km NNW and a maximum local magnitude of 1.8.

Sources: Servicio Geológico Minero Argentino (SEGEMAR), Servicio Nacional de Geología y Minería (SERNAGEOMIN)

Latest Bulletin Report

The Global Volcanism Program has no Bulletin Reports available for Antillanca Volcanic Complex.

Weekly Volcanic Activity Reports

Dated Index


2020: March

Report Narratives

11 March-17 March 2020 Citation IconCite this Report

On 11 March SERNAGEOMIN raised the Alert Level for the Antillanca Volcanic Complex to Yellow because of increased seismicity near Casablanca stratovolcano. Volcano-tectonic (VT) earthquakes began to be recorded in August 2019 and were located about 6.3 km NE of the stratovolcano. During 31 January-1 February a total of 131 VT events were located to the W and NW; the two largest events were M 3.1 and 3.2. A swarm of 73 VT events were detected on 9 March with epicenters located 2.4 km NNW and a maximum local magnitude of 1.8.

Sources: Servicio Geológico Minero Argentino (SEGEMAR); Servicio Nacional de Geología y Minería (SERNAGEOMIN)

Bulletin Reports

The Global Volcanism Program has no Bulletin Reports available for Antillanca Volcanic Complex.

General Information

Eruptive History

There is data available for 2 confirmed eruptive periods.

0230 BCE ± 200 years Confirmed Eruption (Explosive / Effusive) VEI: 5

Episode 1 | Eruption (Explosive / Effusive) Casablanca (Raihuén crater)
0230 BCE ± 200 years - Unknown Evidence from Isotopic: 14C (calibrated)

List of 3 Events for Episode 1 at Casablanca (Raihuén crater)

Start Date End Date Event Type Event Remarks
   - - - -    - - - - Explosion
   - - - -    - - - - Pyroclastic flow
0230 BCE ± 200 years    - - - - VEI (Explosivity Index)

0960 BCE ± 150 years Confirmed Eruption (Explosive / Effusive) VEI: 5

Episode 1 | Eruption (Explosive / Effusive)
0960 BCE ± 150 years - Unknown Evidence from Isotopic: 14C (calibrated)

List of 5 Events for Episode 1

Start Date End Date Event Type Event Remarks
   - - - -    - - - - Explosion
   - - - -    - - - - Lapilli
   - - - -    - - - - Scoria
   - - - -    - - - - Pumice
0960 BCE ± 150 years    - - - - VEI (Explosivity Index)

Synonyms and Subfeatures

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.

Smithsonian Sample Collections Database

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

External Sites