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Southern EPR-Segment I   »  Summary

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Southern EPR-Segment I

Southern EPR-Segment I Photo

Subregion Name:Eastern Pacific Ocean
Subregion Detail:East Pacifc Rise
Volcano Number:1304-14-
Volcano Type: Submarine volcano
Volcano Status:Magnetism
Last Known Eruption: 1915 ± 40 years
Summit Elevation: -2600? m - 8,530 feet
Latitude: 18.53°S 18°32'0"S
Longitude: 113.42°W 113°25'0"W

The narrow axial crest of Segment I of the Southern East Pacific Rise in some places is less than 50 m wide. An axial dome is located along the southern part of the segment. The largest lava flow field in this EPR segment is the Animal Farm flow, named after a thriving low-temperature hydrothermal site discovered during a submersible expedition in 1993. The Animal Farm lava flow was dated by magnetic paleointensity measurements at about 1880-1950 AD, and older flows were dated by similar techniques to the 17th and 19th centuries.

Global Volcanism ProgramDepartment of Mineral SciencesNational Museum of Natural HistorySmithsonian Institution

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