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Farallon de Pajaros

성층화산 · United States · 337m

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. · 사진: Photo by Winfrey, 1980 (U.S. Navy). · Wikimedia Commons
화산 유형
성층화산
국가
United States
지역
Northwestern Pacific Volcanic Regions / Mariana Volcanic Arc
해발
337m
좌표
20.546, 144.893
마지막 분화
1953년
판구조 환경
Subduction zone / Crustal thickness unknown
화산 지형
Composite
주요 암석
Andesite / Basaltic Andesite
지질학적 요약

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.

Wikipedia 요약

영어 요약

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.

Wikipedia · CC BY-SA · 전체 기사 보기 →

분화 이력

요약 (VEI 시계열)
막대를 클릭하면 개별 분화가 표시됩니다
1864~1873 · 2건 · 최고 VEI 21873~1882 · 1건 · 최고 VEI 21899~1908 · 1건 · 최고 VEI 21908~1917 · 1건 · 최고 VEI 21917~1926 · 1건 · 최고 VEI 21926~1934 · 3건 · 최고 VEI 21934~1943 · 4건 · 최고 VEI 21943~1952 · 3건 · 최고 VEI 218641882190819261943

상세 타임라인

  1. 1952년VEI 2관측 기록
    1952-10-26 ~ 1953-04-15
    Summit, east side
  2. 1951년VEI 2관측 기록
    1951-08-16 ~ 진행 중
  3. 1947년VEI 0관측 기록
    1947-01 ~ 진행 중
    North side
  4. 1943년VEI 2관측 기록
    1943 ~ 진행 중
    Summit, south side
  5. 1941년VEI 1관측 기록
    1941-03-28 ~ 진행 중
  6. 1939년VEI 1관측 기록
    1939 ~ 진행 중
    East side ?
  7. 1936년VEI 1관측 기록
    1936-04-15 ~ 진행 중
  8. 1934년VEI ?관측 기록
    1934 ~ 진행 중
  9. 1932년VEI 2관측 기록
    1932-09-07 ~ 1932-10-07
    Summit, east side ?
  10. 1928년VEI 2관측 기록
    1928-12-15 ~ 진행 중
  11. 1925년VEI 2관측 기록
    1925 ~ 진행 중
  12. 1912년VEI 2관측 기록
    1912 ~ 진행 중
    North side ?
  13. 1901년VEI 2지질학적 추정
    1901-01 ~ 1902-12
    Summit, east side
  14. 1876년VEI 2관측 기록
    1876-01-01 ~ 1876-01-03
    Summit, NE side
  15. 1872년VEI 2관측 기록
    1872-07-11 ~ 진행 중
  16. 1864년VEI 2관측 기록
    1864-01-07 ~ 진행 중
    SW side

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