Cile · Stratovulcano
Monte Hudson
Hudson, Cerro
- Tipo
- Stratovulcano
- Altitudine
- 1905 m
- Ultima eruzione
- 2011

- Tipo
- Stratovulcano
- Paese
- Cile
- Regione
- Sud America / Southern Andean Volcanic Arc
- Altitudine
- 1905 m
- Coordinate
- -45.900, -72.970
- Ultima eruzione
- 2011
- Contesto tettonico
- Zona di subduzione / Crosta continentale (> 25 km)
- Forma vulcanica
- Composito
- Roccia principale
- Basalto / Picrobasalto
Sintesi geologica
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.
Sintesi da Wikipedia
Riassunto in ingleseHudson 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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Storia delle eruzioni
15 registrateGlossarioCronologia dettagliata
- 2011VEI 2Osservata2011-10-26 – 2011-11-01S and SE edge of the caldera
- 1991VEI 5Osservata1991-08-08 – 1991-10-27NW caldera rim and SW caldera floor
- 1971VEI 3Osservata1971-08-12 – 1971-09-18NW part of caldera
- 1891VEI ?Osservata1891-07-02 – fine sconosciuta
- 1740 (±150 anni)VEI ?Stima geologica1740 – fine sconosciuta
- 860 (±100 anni)VEI ?Stima geologica860 – fine sconosciuta
- 390 (±150 anni)VEI ?Stima geologica390 – fine sconosciuta
- 120 a.C. (±200 anni)VEI ?Stima geologica120 a.C. – fine sconosciuta
- 790 a.C. (±75 anni)VEI ?Stima geologica790 a.C. – fine sconosciuta
- 1890 a.C.VEI 6Stima geologica1890 a.C. – fine sconosciuta
- 2250 a.C.VEI ?Stima geologica2250 a.C. – fine sconosciuta
- 3890 a.C. (±500 anni)VEI ?Stima geologica3890 a.C. – fine sconosciuta
- 4750 a.C.VEI 6Stima geologica4750 a.C. – fine sconosciuta
- 4960 a.C. (±150 anni)VEI ?Stima geologica4960 a.C. – fine sconosciuta
- 8010 a.C.VEI ?Stima geologica8010 a.C. – fine sconosciuta
Vulcani nelle vicinanze
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