Northern EPR-Segment RO3

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  • Country
  • Subregion Name
  • Primary Volcano Type
  • Last Known Eruption
  • 15.83°N
  • 105.43°W

  • -2300 m
    -7544 ft

  • 334021
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

There are no activity reports for Northern EPR-Segment RO3.



 Available Weekly Reports

There are no Weekly Reports available for Northern EPR-Segment RO3.

Summary of eruption dates and Volcanic Explosivity Indices (VEI).

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
0050 BCE ± 1000 years Unknown Confirmed 0 Magnetism

The following references are the sources used for data regarding this volcano. References are linked directly to our volcano data file. Discussion of another volcano or eruption (sometimes far from the one that is the subject of the manuscript) may produce a citation that is not at all apparent from the title. Additional discussion of data sources can be found under Volcano Data Criteria.

Carlut J, Cormier M-H, Kent D V, Donnelly K E, Langmuir C H, 2004. Timing of volcanism along the northern East Pacific Rise based on paleointensity experiments on basaltic glass. J Geophys Res, 109: B04104, doi:10.1029/2003KB002672.

Segment RO3 of the Northern East Pacific Rise lies between the Orozco and Rivera transform faults, immediately north of the Orozco transform. Unlike segment RO2 to the north, the RO3 segment displays a broad, shallow profile that is the widest and shallowest of a 5000-km-long segment of the East Pacific Rise between 23 degrees south to 23 degrees north. The flat axial crest ranges from 3-4 to about 10 km wide and is about 2300-2350 m deep; the axis morphology suggests a high magma supply rate. Magnetic paleointensity measurements on basaltic glasses dated several lava flows along segment RO3 at about 2000 +/- 1000 years, suggesting a major volcanic episode that produced lava flows flooding much of the axial plateau and extended on to its flanks. Several other lava flows were dated at "contemporary" ages, perhaps less than 100 years.