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Unnamed 85.58°N/85.00°E volcano

Submarine volcano -3800 m / -12,467 ft
East Gakkel Ridge, Arctic Ocean, 85.58°N / 85°E
Current status: dormant (1 out of 5) | Reports
Typical eruption style: unspecified
Unnamed 85.58°N/85.00°E volcano eruptions: unknown, no recent eruptions
TimeMag. / DepthDistanceLocation
Thu, 22 Feb
Thu, 22 Feb 16:55 UTCM 4.4 / 10 km11 km- North of Severnaya Zemlya
Fri, 16 Feb
Fri, 16 Feb 02:27 UTCM 2.739 kmNORTH OF SEVERNAYA ZEMLYA

Background:

Two young volcanoes were discovered along the eastern part of the slow-spreading Gakkel Ridge during a bathymetric survey from a submarine in 1999. The westernmost volcano showed evidence of highly reflective, sediment-free surfaces and young faults overprinted by lava flows. During January-September 1999 global seismic networks detected an earthquake swarm corresponding to the approximate location of this volcano. The correlation between the locations of the earthquake epicenter locations and the strongly reflective, untectonized western volcano together with the volcanic character of the seismic record provided evidence that lava erupted on the East Gakkel Ridge within days to months prior to a May 1999 submarine survey (Edwards et al., 2001). Because 12-kHz sonars can penetrate through thin sediments covering acoustically reflective lavas, it is possible that no eruption occurred on Gakkel Ridge in 1999. Historical global seismic records indicate that this was the only earthquake swarm detected on the Gakkel Ridge in about 100 years.
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Smithsonian / GVP volcano information


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