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There are no activity reports for Unnamed.
Summary of eruption dates and Volcanic Explosivity Indices (VEI).
|Start Date||Stop Date||Eruption Certainty||VEI||Evidence||Activity Area or Unit|
|2003 May (?)||2003 Nov||Confirmed||0||Historical Observations|
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.
Rubin K, van der Zander I, 2005. Obtaining high-resolution chronologies of submarine lava eruptions: better dating through radiochemistry. Ridge 2000 Events, 3 (Spring 2005): 28-30.
van der Zander I, Rubin K H, Zierenberg R A, Voight J R, von Damm K, McClain J, 2004. 210Po-210Pb dating and U-series disequilibria of a young basaltic flow at 10° 44' N EPR. Eos, Trans Amer Geophys Union, 85(47): abstract B13A-0178.
Divers in the submersible Alvin discovered an extremely fresh lava flow in an unexpected location at 10 degrees 44 minutes North on the East Pacific Rise during an expedition in November 2003. The young flow was covered by bacterial mats, had large amounts of bacterial floc ("snow-blowers") issuing from diffuse vents, and was sparsely populated by small animals. Uranium-series dating indicated that the eruption had taken place within a time window only a few months to weeks prior to the observations. This segment of the East Pacific Rise, located just north of the Clipperton Transform Fault, is an area with an estimated low magma production rate.