Southern EPR-Segment K volcano

Updated: Aug 12, 2022 18:44 GMT - Refresh
Submarine volcano -2566 m / - 8,419 ft
Eastern Pacific Ocean, East Pacifc Rise, -17.44°S / -113.21°W
Current status: normal or dormant (1 out of 5)

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

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Typical eruption style: unspecified
Southern EPR-Segment K volcano eruptions: 1990 ± 2 years
Lastest nearby earthquakes: No recent earthquakes

Background

This segment of the mid-ocean ridge north of the Easter microplate displays the broadest cross-sectional area and the shallowest depth (2566 m) of the southern East Pacific Rise between 13 degrees 40 minutes and 18 degrees 30 minutes south. Glassy, unsedimented lava flows on the 17.5 degrees S segment of the East Pacific Rise were considered from biological observations and chemical analyses of the plume and vent fluids to have been erupted within 2-3 years of a November-December 1993 plume survey. Lava was erupted along two segments of the mid-ocean ridge, a 4-km-long flow at the southern site and a 5-10 km long flow at the northern site. Numerous low- and high-temperature hydrothermal vents are active along this segment of the mid-ocean ridge.
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Smithsonian / GVP volcano information

Southern EPR-Segment K Photos

After the large bubble explosions, the effusion rate decreases and the lava flow starts slowly to weaken. At the summit strong strombolian activity continues. The vent of the lava flow can be seen from a depression just beneath the southern rim of the main crater (same spot where the 17 Oct explosion occurred). (Photo: Tom Pfeiffer)
After the large bubble explosions, the effusion rate decreases and the lava flow starts slowly to weaken. At the summit strong strombolian activity continues. The vent of...
 



See also: Sentinel hub | Landsat 8 | NASA FIRMS
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