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Cile · Stratovolkan

Mount Hudson

Hudson, Cerro

Tipe
Stratovolkan
Ketinggian
1905 m
Letusan terakhir
2011
Mount Hudson
Public domain · Wikimedia Commons
Tipe
Stratovolkan
Negara
Cile
Wilayah
Amerika Selatan / Southern Andean Volcanic Arc
Ketinggian
1905 m
Koordinat
-45.900, -72.970
Letusan terakhir
2011
Kondisi tektonik
Zona subduksi / Kerak benua (> 25 km)
Bentuk lahan
Komposit
Batuan utama
Basal / Pikrobasal
Ringkasan geologi

The ice-filled, 10-km-wide caldera of Cerro Hudson volcano was not recognized until its first 20th-century eruption in 1971. It is the southernmost volcano in the Chilean Andes, related to subduction of the Nazca plate beneath the South American plate. The massive volcano covers an area of 300 km2. The compound caldera is drained through a breach on its NW rim, which has been the source of mudflows down the Río de Los Huemeles. Two cinder cones occur N of the volcano and others occupy the SW and SE flanks. This volcano has been the source of several major Holocene explosive eruptions. An eruption about 6,700 years ago was one of the largest known in the southern Andes during the Holocene; another eruption about 3,600 years ago also produced more than 10 km3 of tephra. An eruption in 1991 formed a new 800-m-wide crater in the SW portion of the caldera.

Ringkasan Wikipedia

Ringkasan Inggris

Hudson Volcano is the most active volcano in the southern part of the Southern Volcanic Zone of the Andes Mountains in Chile, having erupted most recently in 2011. It was formed by the subduction of the oceanic Nazca Plate under the continental South American Plate. South of Hudson is a smaller volcano, followed by a long gap without active volcanoes, then the Austral Volcanic Zone. Hudson has the form of a 10-kilometre-wide (6-mile) caldera filled with ice; the Huemules Glacier emerges from the northwestern side of the caldera. The volcano has erupted rocks ranging from basalt to rhyolite, but large parts of the caldera are formed by non-volcanic rocks.

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Riwayat letusan

15 tercatatGlosarium
Ringkasan (VEI dari waktu ke waktu)
Klik pada bar untuk melihat letusan individu · Gunakan tombol panah untuk berpindah batang, Enter untuk membuka
8010 SM~7676 SM · 1 letusan · VEI maks. ?5004 SM~4670 SM · 2 letusan · VEI maks. 64002 SM~3668 SM · 1 letusan · VEI maks. ?2331 SM~1997 SM · 1 letusan · VEI maks. ?1997 SM~1663 SM · 1 letusan · VEI maks. 6995 SM~661 SM · 1 letusan · VEI maks. ?327 SM~7 · 1 letusan · VEI maks. ?341~675 · 1 letusan · VEI maks. ?675~1009 · 1 letusan · VEI maks. ?1677~2011 · 5 letusan · VEI maks. 58010 SM5672 SM2999 SM661 SM1677

Garis waktu rinci

  1. 2011VEI 2Teramati
    2011-10-26 – 2011-11-01
    S and SE edge of the caldera
  2. 1991VEI 5Teramati
    1991-08-08 – 1991-10-27
    NW caldera rim and SW caldera floor
  3. 1971VEI 3Teramati
    1971-08-12 – 1971-09-18
    NW part of caldera
  4. 1891VEI ?Teramati
    1891-07-02 – akhir tidak diketahui
  5. 1740 (±150 tahun)VEI ?Perkiraan geologi
    1740 – akhir tidak diketahui
  6. 860 (±100 tahun)VEI ?Perkiraan geologi
    860 – akhir tidak diketahui
  7. 390 (±150 tahun)VEI ?Perkiraan geologi
    390 – akhir tidak diketahui
  8. 120 SM (±200 tahun)VEI ?Perkiraan geologi
    120 SM – akhir tidak diketahui
  9. 790 SM (±75 tahun)VEI ?Perkiraan geologi
    790 SM – akhir tidak diketahui
  10. 1890 SMVEI 6Perkiraan geologi
    1890 SM – akhir tidak diketahui
  11. 2250 SMVEI ?Perkiraan geologi
    2250 SM – akhir tidak diketahui
  12. 3890 SM (±500 tahun)VEI ?Perkiraan geologi
    3890 SM – akhir tidak diketahui
  13. 4750 SMVEI 6Perkiraan geologi
    4750 SM – akhir tidak diketahui
  14. 4960 SM (±150 tahun)VEI ?Perkiraan geologi
    4960 SM – akhir tidak diketahui
  15. 8010 SMVEI ?Perkiraan geologi
    8010 SM – akhir tidak diketahui

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