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Santa Isabel

Vulcano a scudo · Colombia · 4944 m

Santa Isabel is a small glaciated volcano is seen here from its much larger neighbor to the NE, Nevado del Ruiz. Holocene lava flows fill SW and SE valleys. A small Holocene lava dome was emplaced about 10 km SW of the volcano.
Santa Isabel is a small glaciated volcano is seen here from its much larger neighbor to the NE, Nevado del Ruiz. Holocene lava flows fill SW and SE valleys. A small Holocene lava dome was emplaced about 10 km SW of the volcano. · Foto: Photo by Norm Banks, 1985 (U.S. Geological Survey). · Wikimedia Commons
Tipo
Vulcano a scudo
Paese
Colombia
Regione
South America Volcanic Regions / Northern Andean Volcanic Arc
Altitudine
4944 m
Coordinate
4.818, -75.365
Ultima eruzione
-850
Contesto tettonico
Subduction zone / Continental crust (> 25 km)
Forma vulcanica
Shield
Roccia principale
Andesite / Basaltic Andesite
Sintesi geologica

Santa Isabel is a small andesitic shield volcano that is dwarfed by its neighbors to the NE (Nevado del Ruiz) and SE (Tolima). Three lava domes occupy the elongated, N-S-trending glaciated summit region, which has two main peaks. Holocene lava flows fill valleys to the SW and SE. A small Holocene lava dome was emplaced at the center of a circular depression about 10 km SW. No historical eruptions are known.

Sintesi da Wikipedia

Riassunto in inglese

Nevado de Santa Isabel is a shield volcano straddling the boundaries of the Colombian departments of Tolima, Caldas, and Risaralda, being the highest point of the latter. The volcano lies approximately 10 kilometers southwest of the larger Nevado del Ruiz volcano. Santa Isabel is the third highest peak in Los Nevados National Natural Park. It is a relatively flat volcano with three domes of nearly equal elevation.

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Storia delle eruzioni

Riepilogo (VEI nel tempo)
Fai clic su una barra per vedere le singole eruzioni
5500 BCE~5306 BCE · 1 eruzioni · VEI max. ?4919 BCE~4725 BCE · 1 eruzioni · VEI max. ?3562 BCE~3369 BCE · 1 eruzioni · VEI max. ?1044 BCE~850 BCE · 1 eruzioni · VEI max. ?5500 BCE4337 BCE3175 BCE2206 BCE1044 BCE

Cronologia dettagliata

  1. 850 a.C.VEI ?Stima geologica
    BCE 850 – In corso
  2. 3550 a.C.VEI ?Stima geologica
    BCE 3550 – In corso
  3. 4800 a.C.VEI ?Stima geologica
    BCE 4800 – In corso
  4. 5500 a.C.VEI ?Stima geologica
    BCE 5500 – In corso

Link esterni

⚠ Solo a scopo informativo. Non adatto a situazioni di emergenza.