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Nabukelevu

Kubah 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
Tipe
Kubah lava
Negara
Fiji
Wilayah
Pasifik Barat Daya / Fiji Volcanic Arc
Ketinggian
791 m
Koordinat
-19.118, 177.982
Letusan terakhir
1660
Kondisi tektonik
Subduction zone / Crustal thickness unknown
Bentuk lahan
Minor (Silicic)
Batuan utama
Andesite / Basaltic Andesite
Ringkasan geologi

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.

Riwayat letusan

Ringkasan (VEI dari waktu ke waktu)
Klik pada bar untuk melihat letusan individu
580 BCE~393 BCE · 1 letusan · VEI maks. ?167~353 · 1 letusan · VEI maks. ?1473~1660 · 1 letusan · VEI maks. ?580 BCE20 BCE5409131473

Garis waktu rinci

  1. 1660 (±30 tahun)VEI ?Perkiraan geologi
    1660 – Berlangsung
    Dome NW of summit
  2. 340VEI ?Perkiraan geologi
    340 – Berlangsung
    West side of summit dome complex
  3. 580 SM (±300 tahun)VEI ?Perkiraan geologi
    BCE 580 – Berlangsung
    Summit lava dome

Tautan eksternal

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