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Unnamed submarine volcano in the eastern Pacific Ocean

Northern EPR at 9.8°N

Rekahan erupsi · Undersea Features · 2500 m (bawah laut)

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. · Foto: Photo courtesy of Ridge2000, 2004 (http://www.ridge2000.org/eo/expeditions.php).
Tipe
Rekahan erupsi
Negara
Undersea Features
Wilayah
Eastern Pacific Volcanic Regions / Northern East Pacific Rise Volcanic Province
Ketinggian
2500 m (bawah laut)
Koordinat
9.830, -104.300
Letusan terakhir
2025
Kondisi tektonik
Rift zone / Oceanic crust (< 15 km)
Bentuk lahan
Cluster
Batuan utama
Basalt / Picro-Basalt
Ringkasan geologi

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.

Riwayat letusan

Ringkasan (VEI dari waktu ke waktu)
Klik pada bar untuk melihat letusan individu
5050 BCE~4814 BCE · 1 letusan · VEI maks. 04107 BCE~3871 BCE · 1 letusan · VEI maks. 03163 BCE~2927 BCE · 1 letusan · VEI maks. 02220 BCE~1984 BCE · 1 letusan · VEI maks. 01277 BCE~1041 BCE · 1 letusan · VEI maks. 097 BCE~138 · 1 letusan · VEI maks. 0846~1082 · 2 letusan · VEI maks. 01082~1318 · 1 letusan · VEI maks. 01553~1789 · 2 letusan · VEI maks. 01789~2025 · 7 letusan · VEI maks. 05050 BCE3399 BCE1512 BCE1381789

Garis waktu rinci

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

Tautan eksternal

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