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Unnamed submarine volcano in the eastern Pacific Ocean

Northern EPR at 9.8°N

열극 분화구 · Undersea Features · 2500m (해저)

Fluid containing precipitates rises from a "black smoker" chimney at the Tica vent at 9°N on the East Pacific Rise, photographed during a 2004 expedition sponsored by the National Science Foundation. Hot-vent animal communities (such as seen in the foreground of this image from the November to December 1989 expedition) were observed to have been buried by lava flows in 1991. Another eruption in 2005-2006 produced lava flows that covered seismometers.
Fluid containing precipitates rises from a "black smoker" chimney at the Tica vent at 9°N on the East Pacific Rise, photographed during a 2004 expedition sponsored by the National Science Foundation. Hot-vent animal communities (such as seen in the foreground of this image from the November to December 1989 expedition) were observed to have been buried by lava flows in 1991. Another eruption in 2005-2006 produced lava flows that covered seismometers. · 사진: Photo courtesy of Ridge2000, 2004 (http://www.ridge2000.org/eo/expeditions.php).
화산 유형
열극 분화구
국가
Undersea Features
지역
Eastern Pacific Volcanic Regions / Northern East Pacific Rise Volcanic Province
해발
2500m (해저)
좌표
9.830, -104.300
마지막 분화
2025년
판구조 환경
Rift zone / Oceanic crust (< 15 km)
화산 지형
Cluster
주요 암석
Basalt / Picro-Basalt
지질학적 요약

A series of dives with the submersible Alvin in 1991 on the East Pacific Rise at about 9°50'N detected evidence for a very recent, possibly ongoing, eruption. Hot-vent animal communities documented during November-December 1989 had been buried by fresh basaltic lava flows, and the scorched soft tissues of partially buried biota had not yet attracted bottom scavengers. Fresh black smoker chimneys and new lava flows were present. This site is south of the Clipperton Fracture Zone at a depth of about 2,500 m, and about 1,000 km SW of Acapulco, México; the south end of the Lamont Seamount chain is about 10 km NW. This is also the location where lava flows previously estimated as being less than roughly 50 years old had been found. Later dating using very short half-life radionuclides from dredged samples confirmed the young age of the eruption and indicated that another eruptive event had taken place in late 1991 and early 1992. An eruption in 2005-2006 produced lava flows that entrapped previously emplaced seismometers.

분화 이력

요약 (VEI 시계열)
막대를 클릭하면 개별 분화가 표시됩니다
5050 BCE~4814 BCE · 1건 · 최고 VEI 04107 BCE~3871 BCE · 1건 · 최고 VEI 03163 BCE~2927 BCE · 1건 · 최고 VEI 02220 BCE~1984 BCE · 1건 · 최고 VEI 01277 BCE~1041 BCE · 1건 · 최고 VEI 097 BCE~138 · 1건 · 최고 VEI 0846~1082 · 2건 · 최고 VEI 01082~1318 · 1건 · 최고 VEI 01553~1789 · 2건 · 최고 VEI 01789~2025 · 7건 · 최고 VEI 05050 BCE3399 BCE1512 BCE1381789

상세 타임라인

  1. 2025년VEI 0관측 기록
    2025-04-28 ~ 2025-04-29
    Tica hydrothermal vent, 9°50’N (9.83°N)
  2. 2005년VEI 0관측 기록
    2005-08-16 ~ 2006-01-16
    East Pacific Rise (9.8°N)
  3. 1991년VEI 0지질학적 추정
    1991-01-27 ~ 1991-03-26
    East Pacific Rise (9.84°N)
  4. 1991년VEI 0지질학적 추정
    1991-12-01 ~ 1992-02-05
    East Pacific Rise (9.84°N)
  5. 1988년VEI 0관측 기록
    1988-07-02 ~ 진행 중
    East Pacific Rise (9.27°N)
  6. 1950년VEI 0지질학적 추정
    1950-07-02 ~ 진행 중
    East Pacific Rise (9.87°N)
  7. 1875년VEI 0지질학적 추정
    1875 ~ 진행 중
    East Pacific Rise (9.9°N)
  8. 1650년 (±100년)VEI 0지질학적 추정
    1650 ~ 진행 중
    East Pacific Rise (9.82°N)
  9. 1600년 (±150년)VEI 0지질학적 추정
    1600 ~ 진행 중
    East Pacific Rise (9.87°N)
  10. 1200년 (±300년)VEI 0지질학적 추정
    1200 ~ 진행 중
    East Pacific Rise (9.82°N)
  11. 950년 (±2000년)VEI 0지질학적 추정
    950 ~ 진행 중
    East Pacific Rise (9.5°N)
  12. 850년 (±200년)VEI 0지질학적 추정
    850 ~ 진행 중
    East Pacific Rise (9.87°N)
  13. 기원전 50년 (±2000년)VEI 0지질학적 추정
    BCE 50 ~ 진행 중
    East Pacific Rise (9.5°N)
  14. 기원전 1050년 (±2000년)VEI 0지질학적 추정
    BCE 1050 ~ 진행 중
    East Pacific Rise (9.5°N)
  15. 기원전 2050년 (±2000년)VEI 0지질학적 추정
    BCE 2050 ~ 진행 중
    East Pacific Rise (9.5°N)
  16. 기원전 3050년 (±2000년)VEI 0지질학적 추정
    BCE 3050 ~ 진행 중
    EPR axis and East of axis
  17. 기원전 4050년 (±2000년)VEI 0지질학적 추정
    BCE 4050 ~ 진행 중
    East Pacific Rise (9.5°N)
  18. 기원전 5050년 (±8000년)VEI 0지질학적 추정
    BCE 5050 ~ 진행 중
    EPR axis and East and West of axis

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