The launch of a new GVP website is scheduled for Monday, May 20, 2013.
A photograph is not available for this volcano.
|Subregion Name:||Mariana Islands|
|Volcano Type:||Submarine volcano|
|Last Known Eruption:||1989|
|Summit Elevation:||-8 m||- 26 feet|
|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.|