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Osorno

Stratovolkan · Chile · 2659 m

The symmetrical, glacier-clad Osorno stratovolcano forms a renowned landmark between Todos Los Santos and Llanguihue lakes. It is seen here from the north, with Calbuco volcano visible at the extreme right. The 2652-m-high Osorno is one of the most active volcanoes of the southern Chilean Andes. Flank scoria cones and fissure vents, primarily on the west and SW sides, have produced lava flows that reached Lago Llanguihue. Historical eruptions have originated from both summit and flank vents.
The symmetrical, glacier-clad Osorno stratovolcano forms a renowned landmark between Todos Los Santos and Llanguihue lakes. It is seen here from the north, with Calbuco volcano visible at the extreme right. The 2652-m-high Osorno is one of the most active volcanoes of the southern Chilean Andes. Flank scoria cones and fissure vents, primarily on the west and SW sides, have produced lava flows that reached Lago Llanguihue. Historical eruptions have originated from both summit and flank vents. · Foto: Photo by Hugo Moreno (University of Chile). · Wikimedia Commons
Tipe
Stratovolkan
Negara
Chile
Wilayah
South America Volcanic Regions / Southern Andean Volcanic Arc
Ketinggian
2659 m
Koordinat
-41.105, -72.496
Letusan terakhir
1869
Kondisi tektonik
Subduction zone / Continental crust (> 25 km)
Bentuk lahan
Composite
Batuan utama
Basalt / Picro-Basalt
Ringkasan geologi

The symmetrical, glaciated, Osorno volcano towers above Todos los Santos and Llanquihué lakes. It was constructed over the SW part of a roughly 250,000-year-old eroded stratovolcano, La Picada, that has a mostly buried 6-km-wide caldera. The dominantly basaltic to basaltic andesite volcano includes two small dacitic lava domes on the NW and SSE flanks. Flank scoria cones and fissure vents, primarily on the W and SW sides, have produced lava flows that reached Lago Llanquihué. Frequent explosive eruptions including pyroclastic flows and surges have occurred during the past 14,000 years. Recorded eruptions have originated from summit and flank vents, producing basaltic and andesitic lava flows that have entered both Llanquihué and Todos los Santos lakes.

Ringkasan Wikipedia

Gunung Osorno adalah gunung berapi kerucut setinggi 2.652 meter yang terletak di antara Provinsi Osorno dan Provinsi Llanquihue di Region Los Lagos, Chili selatan. Gunung ini berdiri di pantai tenggara Danau Llanquihue, dan juga menjulang di atas Danau Todos los Santos. Osorno dianggap sebagai simbol lanskap lokal, dan dengan demikian cenderung menjadi elemen rujukan kawasan tersebut dalam kaitannya dengan pariwisata. Menurut beberapa definisi, gunung ini menandai batas utara Patagonia Chili.

Wikipedia · CC BY-SA · Baca artikel lengkap →

Riwayat letusan

Ringkasan (VEI dari waktu ke waktu)
Klik pada bar untuk melihat letusan individu
1710 BCE~1511 BCE · 1 letusan · VEI maks. ?318 BCE~119 BCE · 1 letusan · VEI maks. ?278~477 · 1 letusan · VEI maks. 4875~1074 · 1 letusan · VEI maks. ?1074~1273 · 1 letusan · VEI maks. ?1273~1471 · 1 letusan · VEI maks. ?1471~1670 · 3 letusan · VEI maks. 21670~1869 · 8 letusan · VEI maks. 31710 BCE915 BCE808751670

Garis waktu rinci

  1. 1869VEI 2Teramati
    1869 – Berlangsung
  2. 1855VEI 2Teramati
    1855 – Berlangsung
  3. 1851VEI 2Teramati
    1851 – Berlangsung
  4. 1837VEI 2Teramati
    1837-11-07 – Berlangsung
  5. 1834VEI 3Teramati
    1834-11-29 – 1835-02-24
    Summit & SSW side (Negrillar de Ensenada)
  6. 1790VEI 2Teramati
    1790-03-09 – 1791-12-26
    SE base
  7. 1765 (±14 tahun)VEI 1Teramati
    1765 – Berlangsung
  8. 1719VEI 2Teramati
    1719 – Berlangsung
  9. 1644VEI 2Teramati
    1644 – Berlangsung
  10. 1640VEI 2Teramati
    1640 – Berlangsung
  11. 1575VEI 2Teramati
    1575 – Berlangsung
  12. 1310 (±75 tahun)VEI ?Perkiraan geologi
    1310 – Berlangsung
  13. 1220 (±100 tahun)VEI ?Perkiraan geologi
    1220 – Berlangsung
  14. 910 (±100 tahun)VEI ?Perkiraan geologi
    910 – Berlangsung
  15. 420 (±100 tahun)VEI 4Perkiraan geologi
    420 – Berlangsung
  16. 210 SM (±75 tahun)VEI ?Perkiraan geologi
    BCE 210 – Berlangsung
  17. 1710 SM (±75 tahun)VEI ?Perkiraan geologi
    BCE 1710 – Berlangsung

Tautan eksternal

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