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Supply Reef volcano

Submarine volcano -8 m / - 26 ft
United States, Mariana Islands, 20.13°N / 145.1°E
Current status: dormant (1 out of 5)
Supply Reef volcano books
Typical eruption style: unspecified
Supply Reef volcano eruptions: 1989  No recent earthquakes
TimeMag. / DepthDistanceLocation

Background:

Supply Reef is a conical submarine volcano in the northern Mariana Islands that rises to within 8 m of the sea surface. The andesitic seamount lies about 10 km NW of the Maug Islands, the emergent summit of a submarine volcano that is joined to Supply Reef by a low saddle at a depth of about 1800 m. Supply Reef was mapped as Quaternary; living corals on the crater rim suggest that the volcano is either dormant or extinct (Corwin, 1971). Several submarine eruptions have been detected by sonar signals originating from points very approximately located at distances of 15-25 km NW of Supply Reef.
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Smithsonian / GVP volcano information


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