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Gunung Banahaw

Banahaw

Gunung api kompleks · Philippines · 2158 m

Mount Banahaw is the highest of a group of volcanoes S and E of Manila. The smaller San Cristóbal and Banáhao de Lucban have formed on the W and E flanks, respectively. This view from the SW shows a valley descending from the summit that formed or deepened during the outbreak of a crater lake in 1730. Collapse events produced two major debris avalanches, the largest of which traveled 26 km SE to the sea, where it forms a 10-km-long section of Tayabas Bay coastline.
Mount Banahaw is the highest of a group of volcanoes S and E of Manila. The smaller San Cristóbal and Banáhao de Lucban have formed on the W and E flanks, respectively. This view from the SW shows a valley descending from the summit that formed or deepened during the outbreak of a crater lake in 1730. Collapse events produced two major debris avalanches, the largest of which traveled 26 km SE to the sea, where it forms a 10-km-long section of Tayabas Bay coastline. · Foto: Photo by Chris Newhall, 1989 (U.S. Geological Survey). · Wikimedia Commons
Tipe
Gunung api kompleks
Negara
Philippines
Wilayah
Western Pacific Volcanic Regions / Luzon Volcanic Arc
Ketinggian
2158 m
Koordinat
14.070, 121.480
Letusan terakhir
Tidak diketahui
Kondisi tektonik
Subduction zone / Continental crust (> 25 km)
Bentuk lahan
Composite
Batuan utama
Andesite / Basaltic Andesite
Ringkasan geologi

Banahaw (also known as Banahao), the highest of a group of volcanoes south and east of Manila, is flanked by San Cristobal (7 km W) and Banahaw de Lucban on the NE. Andesitic-to-dacitic lava domes occur on the flanks of both Banahaw and San Cristobal. Deposits from two major Holocene debris avalanches from Banahaw extend 13 km NE and 26 km SE, where it forms 10 km of the coastline of Tayabas Bay. The youthfule morphology of the San Cristobal stratovolcano suggests that it postdates Banahaw. Banahaw de Lucban stratovolcano was constructed within the 8-km-wide amphitheater related to the two debris avalanches, and is the youngest volcano of the Banahaw complex. The 2-km-wide, 600-m-deep summit crater of Banahaw is open to the SSW and contained a crater lake until 1730, when it drained, forming mudflows. Mudflows were also recorded in 1743?, 1843 and 1909, possibly also associated with explosive activity.

Ringkasan Wikipedia

Gunung Banahaw adalah kompleks gunung berapi aktif di Luzon, Filipina. Gunung berapi tiga puncak ini terletak di perbatasan provinsi Laguna dan Quezon. Gunung ini merupakan gunung tertinggi di kedua provinsi dan wilayah Calabarzon, mendominasi bentang alam sejauh bermil-mil di sekitarnya.

Wikipedia · CC BY-SA · Baca artikel lengkap →

Riwayat letusan

Ringkasan (VEI dari waktu ke waktu)
Klik pada bar untuk melihat letusan individu
1730~1748 · 2 letusan · VEI maks. ?1837~1855 · 1 letusan · VEI maks. ?1891~1909 · 1 letusan · VEI maks. ?17301766182018551891

Garis waktu rinci

  1. 1909VEI ?Perkiraan geologi
    1909 – Berlangsung
    Banáhao
  2. 1843VEI ?Perkiraan geologi
    1843 – Berlangsung
    Banáhao
  3. 1743VEI ?Perkiraan geologi
    1743 – Berlangsung
    Banáhao
  4. 1730VEI ?Perkiraan geologi
    1730 – Berlangsung
    Banáhao

Tautan eksternal

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