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Unnamed 9.83°N/104.3°W volcano

Submarine volcano -2500? m / - 8,202 ft
Eastern Pacific Ocean, East Pacific Rise, 9.83°N / -104.3°W
Current status: dormant (1 out of 5) | Reports
Typical eruption style: unspecified
Unnamed 9.83°N/104.3°W volcano eruptions: 2006  No recent earthquakes
TimeMag. / DepthDistanceLocation

Background:

Evidence for a very recent, possibly ongoing eruption was detected during a series of dives in the submersible vessel Alvin in 1991 on the East Pacific Rise at about 9 deg 50 min N. Hot-vent animal communities that had been documented during November to December 1989 imaging were observed to have been buried by fresh basaltic lava flows, and the scorched soft tissues of partially buried biota had not yet attracted bottom scavengers. Fresh black smoker chimneys were draped by new lava flows. This position was at a depth of about 2500 m south of the Clipperton fracture zone, about 1000 km SW of Acapulco, México. It coincided with a location where fresh lava flows previously estimated as less than roughly 50 years in age had been found. Later dating of very short half-life radionuclides from dredged samples confirmed the young age of the eruption and indicated that another eruptive event had taken place in late 1991 and early 1992. An eruption in 2005-2006 produced lava flows that entrapped previously emplaced seismometers.
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Smithsonian / GVP volcano information


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