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Farallon de Pajaros

Stratovolkan · United States · 337 m

The 2-km-wide island of Farallon de Pajaros is the northernmost and most active volcano of the Mariana Islands. It has been referred to as the "Lighthouse of the western Pacific." The symmetrical, sparsely vegetated cone formed within a caldera, remnants of which form the peak seen here in 1980 in the center along the SE coast. Both summit and flank vents have been active during historical time; flank fissures formed lava flows along the coast.
The 2-km-wide island of Farallon de Pajaros is the northernmost and most active volcano of the Mariana Islands. It has been referred to as the "Lighthouse of the western Pacific." The symmetrical, sparsely vegetated cone formed within a caldera, remnants of which form the peak seen here in 1980 in the center along the SE coast. Both summit and flank vents have been active during historical time; flank fissures formed lava flows along the coast. · Foto: Photo by Winfrey, 1980 (U.S. Navy). · Wikimedia Commons
Tipe
Stratovolkan
Negara
United States
Wilayah
Northwestern Pacific Volcanic Regions / Mariana Volcanic Arc
Ketinggian
337 m
Koordinat
20.546, 144.893
Letusan terakhir
1953
Kondisi tektonik
Subduction zone / Crustal thickness unknown
Bentuk lahan
Composite
Batuan utama
Andesite / Basaltic Andesite
Ringkasan geologi

The small 2-km-wide island of Farallon de Pajaros (also known as Uracas) is the northernmost and most active volcano of the Mariana Islands. Its relatively frequent eruptions dating back to the mid-19th century have caused the andesitic volcano to be referred to as the "Lighthouse of the western Pacific." The symmetrical, sparsely vegetated summit is the central cone within a small caldera cutting an older edifice, remnants of which are seen on the SE and southern sides near the coast. Flank fissures have fed lava flows that form platforms along the coast. Eruptions have been recorded from both summit and flank vents.

Ringkasan Wikipedia

Ringkasan Inggris

Farallón de Pájaros, also known as Urracas, is a small (2.3 km2) uninhabited volcanic island, the northernmost island and also farthest west in the Northern Mariana Islands chain.

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Riwayat letusan

Ringkasan (VEI dari waktu ke waktu)
Klik pada bar untuk melihat letusan individu
1864~1873 · 2 letusan · VEI maks. 21873~1882 · 1 letusan · VEI maks. 21899~1908 · 1 letusan · VEI maks. 21908~1917 · 1 letusan · VEI maks. 21917~1926 · 1 letusan · VEI maks. 21926~1934 · 3 letusan · VEI maks. 21934~1943 · 4 letusan · VEI maks. 21943~1952 · 3 letusan · VEI maks. 218641882190819261943

Garis waktu rinci

  1. 1952VEI 2Teramati
    1952-10-26 – 1953-04-15
    Summit, east side
  2. 1951VEI 2Teramati
    1951-08-16 – Berlangsung
  3. 1947VEI 0Teramati
    1947-01 – Berlangsung
    North side
  4. 1943VEI 2Teramati
    1943 – Berlangsung
    Summit, south side
  5. 1941VEI 1Teramati
    1941-03-28 – Berlangsung
  6. 1939VEI 1Teramati
    1939 – Berlangsung
    East side ?
  7. 1936VEI 1Teramati
    1936-04-15 – Berlangsung
  8. 1934VEI ?Teramati
    1934 – Berlangsung
  9. 1932VEI 2Teramati
    1932-09-07 – 1932-10-07
    Summit, east side ?
  10. 1928VEI 2Teramati
    1928-12-15 – Berlangsung
  11. 1925VEI 2Teramati
    1925 – Berlangsung
  12. 1912VEI 2Teramati
    1912 – Berlangsung
    North side ?
  13. 1901VEI 2Perkiraan geologi
    1901-01 – 1902-12
    Summit, east side
  14. 1876VEI 2Teramati
    1876-01-01 – 1876-01-03
    Summit, NE side
  15. 1872VEI 2Teramati
    1872-07-11 – Berlangsung
  16. 1864VEI 2Teramati
    1864-01-07 – Berlangsung
    SW side

Tautan eksternal

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