Cile · Argentina · Stratovolkan
Copahue
- Tipe
- Stratovolkan
- Ketinggian
- 2953 m
- Letusan terakhir
- 2024
- Tipe
- Stratovolkan
- Negara
- Cile · Argentina
- Wilayah
- Amerika Selatan / Southern Andean Volcanic Arc
- Ketinggian
- 2953 m
- Koordinat
- -37.856, -71.183
- Letusan terakhir
- 2024
- Kondisi tektonik
- Zona subduksi / Kerak benua (> 25 km)
- Bentuk lahan
- Komposit
- Batuan utama
- Trakibasal / Tefrit basanit
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 InggrisCopahue 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
22 tercatatGlosariumGaris waktu rinci
- 2024VEI 1Teramati2024-10-16 – 2024-10-27
- 2021VEI 1Teramati2021-07-02 – 2021-11-06
- 2020VEI 2Teramati2020-06-16 – 2020-11-02Agrio Crater
- 2019VEI 2Teramati2019-08-02 – 2019-11-12Agrio Crater
- 2017VEI 1Teramati2017-06-04 – 2018-12-07El Agrio Crater
- 2015VEI 2Teramati2015-09-18 – 2017-02-22Agrio Crater
- 2014VEI 1Teramati2014-07-04 – 2014-12-02El Agrio Crater
- 2012VEI 2Teramati2012-07-17 – 2012-07-19El Agrio Crater
- 2012VEI 2Teramati2012-12-22 – 2013-12-10Agrio Crater
- 2000VEI 2Teramati2000-07-01 – 2000-10-18Agrio Crater
- 1995VEI 2Teramati1995-09-16 – akhir tidak diketahuiAgrio Crater
- 1994VEI 2Teramati1994-12-16 – akhir tidak diketahuiAgrio Crater
- 1992VEI 2Teramati1992-07-22 – 1993-07-02Agrio Crater
- 1961VEI 2Teramati1961-07-02 – akhir tidak diketahui
- 1960VEI ?Teramati1960-07-02 – akhir tidak diketahui
- 1944VEI ?Teramati1944-07-02 – akhir tidak diketahui
- 1937VEI 2Teramati1937-07-02 – akhir tidak diketahui
- 1867VEI 2Teramati1867-07-02 – akhir tidak diketahui
- 1759VEI ?Metode tidak dinyatakan1759 – akhir tidak diketahui
- 1750VEI 2Teramati1750 – akhir tidak diketahui
- 250 SMVEI ?Perkiraan geologi250 SM – akhir tidak diketahui
- 6820 SMVEI ?Perkiraan geologi6820 SM – akhir tidak diketahui
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