Supply Reef

Name

Supply Reef

Depth

1800 meters

Height

1000 meters

Type

Submarine volcano

Location

Mariana Islands

Status

Hydrophonic

Eruption

1989

Description

The 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. Supply Reef was mapped as Quaternary living corals on the crater rim suggest that the volcano is either dormant or extinct.Several submarine eruptions have been detected by sonar signals originating from points very approximately located at distances of 15 to 25 kilometers NW of Supply Reef.