Data from the Global Volcanism Program of the Smithsonian Institution
Details for: Copahue
The broad glacier-covered summit of Volcán Copahue along the Chile/Argentina border is seen from the SE with conical Callaqui volcano in the distance. The lake-filled active crater of Copahue (lower center) has been the site of historical eruptions. The composite cone was constructed along the Chile/Argentina border within an 8-km-wide caldera formed 0.6 million years ago. The eastern summit crater is part of a 2-km-long, ENE-WSW line of nine craters that cuts across the western rim of the caldera. Photo by Oscar González-Ferrán, 1992 (University of Chile).
Volcano Number:357090
Volcano Name:Copahue
Country:Chile-Argentina
Volcano Type:Stratovolcano
Last Eruption:2018
Elevation:2953m
Tectonic Setting:Subduction zone / Continental crust (> 25 km)
Pop. within 5km:88
Pop. within 10km:555
Pop. within 30km:3042
Pop. within 100km:138414
Latitude:-37.856
Longitude:-71.183



Eruption Data from the Global Volcanism Program of the Smithsonian Institution
Volcano Number Volcano Name Eruption Number Activity Type Explosivity Index Max Explosivity Index Modifier Activity Area Activity Unit Start Evidence Method Start Date End Date
357090 Copahue 11999 Confirmed Eruption Radiocarbon (uncorrected) -6820
357090 Copahue 12000 Confirmed Eruption Radiocarbon (uncorrected) -250
357090 Copahue 12001 Confirmed Eruption 2 Historical Observations 1750
357090 Copahue 12002 Uncertain Eruption 1759
357090 Copahue 12003 Confirmed Eruption 2 ? Historical Observations 1867
357090 Copahue 12004 Confirmed Eruption 2 ? Historical Observations 1937
357090 Copahue 12005 Confirmed Eruption Historical Observations 1944
357090 Copahue 12006 Confirmed Eruption Historical Observations 1960/7/2
357090 Copahue 12007 Confirmed Eruption 2 Historical Observations 1961/7/2
357090 Copahue 12008 Confirmed Eruption 2 Agrio Crater Historical Observations 1992/7/22 1993/7/2
357090 Copahue 12009 Confirmed Eruption 2 Agrio Crater Historical Observations 1994/12/16
357090 Copahue 12010 Confirmed Eruption 2 Agrio Crater Historical Observations 1995/9/16
357090 Copahue 12011 Confirmed Eruption 2 Agrio Crater Historical Observations 2000/7/1 2000/10/18
357090 Copahue 20760 Confirmed Eruption 2 Agrio Crater Historical Observations 2012/12/22 2013/12/10
357090 Copahue 20954 Confirmed Eruption 1 Agrio Crater Historical Observations 2014/7/4 2014/12/2
357090 Copahue 21098 Confirmed Eruption 2 Agrio Crater Historical Observations 2015/9/18 2016/12/30
357090 Copahue 22232 Confirmed Eruption 1 Agrio Crater Historical Observations 2017/6/4 2018/7/31
357090 Copahue 22299 Confirmed Eruption 2 Agrio Crater Historical Observations 2018/12/2 2018/12/7
Emissions Data from the Global Volcanism Program of the Smithsonian Institution
Emission ID SO2 Kilotons Start Date End Date
324 500 2012/12/22 2012/12/22


Data from the Earthchem Portal


Data from the SESAR Database
Sorry. No data exist for this volcano in the SESAR database.


Data from the MaGa Database
Location: Termas de Copahue (View Details at MaGa DB)
Description: The north-western sector of Caviahue caldera (Argentina), close to the active volcanic system of Copahue, is characterized by the presence of several hydrothermal sites that host numerous fumarolic emissions, anomalous soil diffuse degassing of CO2 and hot soils.
Hazard Description: not reported
Type: soil_diffuse_emission
Region: Neuquen, Argentina
Country: Argentina
Volcanic Complex: Copahue-Caviahue
Gas Flux Data:
Measurement Name Detail Specie Flux Std. Dev. Unit of Measure
Termas de Copahue_10032014 Detail CO2 119 0 Mg/d

Location: Copahue-Caviahue Las Maquinitas I (View Details at MaGa DB)
Description: The Copahue–Caviahue Volcanic Complex (hereafter CCVC, 38°S-71°W) is located in the Neuquén Province (Patagonia, Argentina) on a segment of the Andes range, called the South Volcanic Zone. In the north-eastern flank of the Copahue volcanic edifice,within the Caviahue Caldera, six hydrothermal areas are recognized: LasMáquinas, Las Maquinitas I, Las Maquinitas II, Anfiteatro, Termas de Copahue and Chancho-Co. The hydrothermal activity of some of these sites (Las Máquinas, Las Maquinitas and Termas de Copahue) is so intense that causes a background volcanic tremor as revealed by a seismic array analysis performed in the 2003–2005 period.
Hazard Description: not reported
Type: soil_diffuse_emission
Region: Neuquen, Argentina
Country: Argentina
Volcanic Complex: Copahue-Caviahue
Gas Flux Data:
Measurement Name Detail Specie Flux Std. Dev. Unit of Measure
Las Maquinitas I_10032014 Detail CO2 4.4 0 Mg/d

Location: Copahue-Caviahue Las Maquinitas II (View Details at MaGa DB)
Description: The Copahue–Caviahue Volcanic Complex (hereafter CCVC, 38°S-71°W) is located in the Neuquén Province (Patagonia, Argentina) on a segment of the Andes range, called the South Volcanic Zone. In the north-eastern flank of the Copahue volcanic edifice,within the Caviahue Caldera, six hydrothermal areas are recognized: LasMáquinas, Las Maquinitas I, Las Maquinitas II, Anfiteatro, Termas de Copahue and Chancho-Co. The hydrothermal activity of some of these sites (Las Máquinas, Las Maquinitas and Termas de Copahue) is so intense that causes a background volcanic tremor as revealed by a seismic array analysis performed in the 2003–2005 period.
Hazard Description: not reported
Type: soil_diffuse_emission
Region: Neuquen, Argentina
Country: Argentina
Volcanic Complex: Copahue-Caviahue
Gas Flux Data:
Measurement Name Detail Specie Flux Std. Dev. Unit of Measure
Las Maquinitas II_10032014 Detail CO2 8.92 0 Mg/d

Location: Copahue-Caviahue Las Maquinitas (View Details at MaGa DB)
Description: The Copahue–Caviahue Volcanic Complex (hereafter CCVC, 38°S-71°W) is located in the Neuquén Province (Patagonia, Argentina) on a segment of the Andes range, called the South Volcanic Zone. In the north-eastern flank of the Copahue volcanic edifice,within the Caviahue Caldera, six hydrothermal areas are recognized: LasMáquinas, Las Maquinitas I, Las Maquinitas II, Anfiteatro, Termas de Copahue and Chancho-Co. The hydrothermal activity of some of these sites (Las Máquinas, Las Maquinitas and Termas de Copahue) is so intense that causes a background volcanic tremor as revealed by a seismic array analysis performed in the 2003–2005 period.
Hazard Description: not reported
Type: fumarole
Region: Neuquen, Argentina
Country: Argentina
Volcanic Complex: Copahue-Caviahue
Gas Concentration Data:
Measurement Name Detail Specie Concentration Unit of Measure
Las Maquinitas_10032014 Detail CO2 23100 micromol/mol
Las Maquinitas_10032014 Detail H2S 214 micromol/mol
Las Maquinitas_10032014 Detail N2 521 micromol/mol
Las Maquinitas_10032014 Detail H2O 976000 micromol/mol
Las Maquinitas_10032014 Detail CH4 290 micromol/mol
Las Maquinitas_10032014 Detail H2 312 micromol/mol
Las Maquinitas_10032014 Detail He 0.32 micromol/mol
Las Maquinitas_10032014 Detail CO 0.049 micromol/mol
Gas Flux Data:
Measurement Name Detail Specie Flux Std. Dev. Unit of Measure
Las Maquinitas_10032014 Detail CO2 3.2 1.1 Mg/d

Location: Copahue-Caviahue Anfiteatro (View Details at MaGa DB)
Description: The north-western sector of Caviahue caldera (Argentina), close to the active volcanic system of Copahue, is characterized by the presence of several hydrothermal sites that host numerous fumarolic emissions, anomalous soil diffuse degassing of CO2 and hot soils.The gas source is likely related to a relatively shallow geothermal reservoir containing a single vapor phase as also suggested by both the geochemical data from the 3 deep wells drilled in the 1980s and gas geoindicators applied to the fumarolic discharges
Hazard Description: not reported
Type: soil_diffuse_emission
Region: Neuquen, Argentina
Country: Argentina
Volcanic Complex: Copahue-Caviahue
Gas Flux Data:
Measurement Name Detail Specie Flux Std. Dev. Unit of Measure
Anfiteatro_10032014 Detail CO2 2.74 0 Mg/d

Location: Copahue-Caviahue Las Máquinas (View Details at MaGa DB)
Description: The Copahue–Caviahue Volcanic Complex (hereafter CCVC, 38°S-71°W) is located in the Neuquén Province (Patagonia, Argentina) on a segment of the Andes range, called the South Volcanic Zone. In the north-eastern flank of the Copahue volcanic edifice,within the Caviahue Caldera, six hydrothermal areas are recognized: LasMáquinas, Las Maquinitas I, Las Maquinitas II, Anfiteatro, Termas de Copahue and Chancho-Co. The hydrothermal activity of some of these sites (Las Máquinas, Las Maquinitas and Termas de Copahue) is so intense that causes a background volcanic tremor as revealed by a seismic array analysis performed in the 2003–2005 period.
Hazard Description: not reported
Type: soil_diffuse_emission
Region: Neuquen, Argentina
Country: Argentina
Volcanic Complex: Copahue-Caviahue
Gas Flux Data:
Measurement Name Detail Specie Flux Std. Dev. Unit of Measure
Las Máquinas_10032014 Detail CO2 46.52 0 Mg/d