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Copahue

Stratovolkan · Chile-Argentina · 2953 m

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.
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. · Foto: Photo by Oscar González-Ferrán, 1992 (University of Chile). · Wikimedia Commons
Tipe
Stratovolkan
Negara
Chile-Argentina
Wilayah
South America Volcanic Regions / Southern Andean Volcanic Arc
Ketinggian
2953 m
Koordinat
-37.856, -71.183
Letusan terakhir
2024
Kondisi tektonik
Subduction zone / Continental crust (> 25 km)
Bentuk lahan
Composite
Batuan utama
Trachybasalt / Tephrite Basanite
Ringkasan geologi

Volcán Copahue is an elongated composite cone constructed along the Chile-Argentina border within the 6.5 x 8.5 km wide Trapa-Trapa caldera that formed between 0.6 and 0.4 million years ago near the NW margin of the 20 x 15 km Pliocene Caviahue (Del Agrio) caldera. The eastern summit crater, part of a 2-km-long, ENE-WSW line of nine craters, contains a briny, acidic 300-m-wide crater lake (also referred to as El Agrio or Del Agrio) and displays intense fumarolic activity. Acidic hot springs occur below the eastern outlet of the crater lake, contributing to the acidity of the Río Agrio, and another geothermal zone is located within Caviahue caldera about 7 km NE of the summit. Infrequent mild-to-moderate explosive eruptions have been recorded since the 18th century. Twentieth-century eruptions from the crater lake have ejected pyroclastic rocks and chilled liquid sulfur fragments.

Ringkasan Wikipedia

Ringkasan Inggris

Copahue is a stratovolcano in the Andes on the border of Bío Bío Region, Chile and Neuquén Province, Argentina. There are nine volcanic craters along a 2 km (1.2 mi) line, the easternmost of which is historically the most active, and contains a 300 m (1000 ft) wide crater lake with a pH ranging between 0.18 and 0.30. Eruptions from this crater lake have ejected pyroclastic rocks and chilled liquid sulfur fragments. Although the lake emptied during the 2000 eruption, it later returned to its previous levels. Copahue means "sulphur waters" in Mapuche.

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Riwayat letusan

Ringkasan (VEI dari waktu ke waktu)
Klik pada bar untuk melihat letusan individu
6820 BCE~6525 BCE · 1 letusan · VEI maks. ?334 BCE~40 BCE · 1 letusan · VEI maks. ?1729~2024 · 20 letusan · VEI maks. 26820 BCE4756 BCE2398 BCE334 BCE1729

Garis waktu rinci

  1. 2024VEI 1Teramati
    2024-10-16 – 2024-10-27
  2. 2021VEI 1Teramati
    2021-07-02 – 2021-11-06
  3. 2020VEI 2Teramati
    2020-06-16 – 2020-11-02
    Agrio Crater
  4. 2019VEI 2Teramati
    2019-08-02 – 2019-11-12
    Agrio Crater
  5. 2017VEI 1Teramati
    2017-06-04 – 2018-12-07
    El Agrio Crater
  6. 2015VEI 2Teramati
    2015-09-18 – 2017-02-22
    Agrio Crater
  7. 2014VEI 1Teramati
    2014-07-04 – 2014-12-02
    El Agrio Crater
  8. 2012VEI 2Teramati
    2012-12-22 – 2013-12-10
    Agrio Crater
  9. 2012VEI 2Teramati
    2012-07-17 – 2012-07-19
    El Agrio Crater
  10. 2000VEI 2Teramati
    2000-07-01 – 2000-10-18
    Agrio Crater
  11. 1995VEI 2Teramati
    1995-09-16 – Berlangsung
    Agrio Crater
  12. 1994VEI 2Teramati
    1994-12-16 – Berlangsung
    Agrio Crater
  13. 1992VEI 2Teramati
    1992-07-22 – 1993-07-02
    Agrio Crater
  14. 1961VEI 2Teramati
    1961-07-02 – Berlangsung
  15. 1960VEI ?Teramati
    1960-07-02 – Berlangsung
  16. 1944VEI ?Teramati
    1944 – Berlangsung
  17. 1937VEI 2Teramati
    1937 – Berlangsung
  18. 1867VEI 2Teramati
    1867 – Berlangsung
  19. 1759VEI ?Perkiraan geologi
    1759 – Berlangsung
  20. 1750VEI 2Teramati
    1750 – Berlangsung
  21. 250 SMVEI ?Perkiraan geologi
    BCE 250 – Berlangsung
  22. 6820 SMVEI ?Perkiraan geologi
    BCE 6820 – Berlangsung

Tautan eksternal

⚠ Untuk referensi saja. Bukan untuk tanggap darurat.