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Undersea features · Fissure vent

Southern EPR-Segment K

Southern EPR at 17.5°S (Segment K)

Type
Fissure vent
Elevation
2566m (submarine)
Last eruption
1990
Shrimp swimming above a hydrothermally active vent within basalt on the Southern East Pacific Rise (near 17° 27’ S) were photographed in November 1994 from the Japanese submersible Shinkai 6500. Shrimp and crabs were seen going in and out of similar cracks in this area. Lava flows from a recent volcanic eruption were observed in 1994 along segment K of the Southern East Pacific Rise.
Shrimp swimming above a hydrothermally active vent within basalt on the Southern East Pacific Rise (near 17° 27’ S) were photographed in November 1994 from the Japanese submersible Shinkai 6500. Shrimp and crabs were seen going in and out of similar cracks in this area. Lava flows from a recent volcanic eruption were observed in 1994 along segment K of the Southern East Pacific Rise. · Photo: Image courtesy of NOAA Vents Program, 1994 (www.pmel.noaa.gov/vents/chemistry/images/).
Type
Fissure vent
Country
Undersea features
Region
Southern Pacific / Southern East Pacific Rise Volcanic Province
Elevation
2566m (submarine)
Coordinates
-17.436, -113.206
Last eruption
1990
Tectonic setting
Rift zone / Oceanic crust (< 15 km)
Landform
Cluster
Major rock type
Basalt / Picro-basalt

Geological summary

Lava flows from a very recent eruption were observed in 1994 along segment K of the southern East Pacific Rise.

Excerpt from the Global Volcanism Program, Smithsonian Institution · Read the full summary on GVP →

Eruption history

5 recordedGlossary

Record summary

Confirmed eruptions
5
Uncertain eruptions
0
Span of confirmed record
1625 – 1990
Largest confirmed eruption
VEI 0 (1990, the most recent of 5)
Confirmed eruptions since 1900
3
Summary (VEI over time)
Click a bar to see individual eruptions · Use arrow keys to move between bars, Enter to open
1625~1662 · 1 eruptions · max VEI 01808~1844 · 1 eruptions · max VEI 01917~1954 · 1 eruptions · max VEI 01954~1990 · 2 eruptions · max VEI 016251698180818811954

Detailed timeline

  1. 1990 (±2 yrs)VEI 0Observed
    1990-07-02 – end unknown
  2. 1965VEI 0Geological estimate
    1965-07-02 – end unknown
    South of Aldo-Kihi lava flow
  3. 1930VEI 0Geological estimate
    1930-07-02 – end unknown
    North of Aldo-Kiri lava flow
  4. 1840VEI 0Geological estimate
    1840-07-02 – end unknown
    North of Aldo-Kiri lava flow
  5. 1625VEI 0Geological estimate
    1625 – end unknown
    South of Aldo-Kihi lava flow

Nearby volcanoes

External links

⚠ For reference only. Not for emergency response.