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Nabukelevu

Duomo di lava · Fiji · 791 m

The summit of Nabukelevu lies between the two clouds near the center of this NASA International Space Station image and is located at the SW end of Kadavu Island at the southern end of the Fiji archipelago. Debris avalanches from collapse of the Mt. Washington lava dome complex reached both the northern coast to the right of Cape Washington (the small peninsula at the upper left) and horseshoe-shaped Daviqele Bay (bottom center) and the south. Block-and-ash flows from dome growth and collapse have occurred within the past few hundred years.
The summit of Nabukelevu lies between the two clouds near the center of this NASA International Space Station image and is located at the SW end of Kadavu Island at the southern end of the Fiji archipelago. Debris avalanches from collapse of the Mt. Washington lava dome complex reached both the northern coast to the right of Cape Washington (the small peninsula at the upper left) and horseshoe-shaped Daviqele Bay (bottom center) and the south. Block-and-ash flows from dome growth and collapse have occurred within the past few hundred years. · Foto: NASA International Space Station image ISS006-E-7466, 2002 (http://eol.jsc.nasa.gov/). · Wikimedia Commons
Tipo
Duomo di lava
Paese
Fiji
Regione
Southwestern Pacific Volcanic Regions / Fiji Volcanic Arc
Altitudine
791 m
Coordinate
-19.118, 177.982
Ultima eruzione
1660
Contesto tettonico
Subduction zone / Crustal thickness unknown
Forma vulcanica
Minor (Silicic)
Roccia principale
Andesite / Basaltic Andesite
Sintesi geologica

The andesitic-to-dacitic Nabukelevu lava-dome complex occupies the SW end of Kadavu Island at the S end of the Fiji archipelago. The high point of the complex is Mt. Washington, an andesitic lava dome. Flat-lying dacitic lava flows are found at Cape Washington along the W coast and at Talaulia Bay on the NE coast. NNE-trending faults cut the complex in several locations and define its E boundary. The dome complex is cut by several collapse scarps, which were the source of debris avalanches that have incorporated human artifacts and remains. Debris avalanches have entered the sea on the both the N and S sides of the volcano. Onshore and offshore deposits as well as native legends indicate that several eruptions have occurred during the Holocene. Block-and-ash flows related to dome growth have occurred within the past few hundred years.

Sintesi da Wikipedia

Riassunto in inglese

Nabukelevu also known as Mt. Washington is a potentially active lava dome complex volcano located on the southwest portion of Kadavu Island in Fiji. It is 805 metres (2,641 ft) tall, and last erupted around 1660. It has formed lava domes

Wikipedia · CC BY-SA · Leggi l'articolo completo →

Storia delle eruzioni

Riepilogo (VEI nel tempo)
Fai clic su una barra per vedere le singole eruzioni
580 BCE~393 BCE · 1 eruzioni · VEI max. ?167~353 · 1 eruzioni · VEI max. ?1473~1660 · 1 eruzioni · VEI max. ?580 BCE20 BCE5409131473

Cronologia dettagliata

  1. 1660 (±30 anni)VEI ?Stima geologica
    1660 – In corso
    Dome NW of summit
  2. 340VEI ?Stima geologica
    340 – In corso
    West side of summit dome complex
  3. 580 a.C. (±300 anni)VEI ?Stima geologica
    BCE 580 – In corso
    Summit lava dome

Link esterni

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