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Supply Reef - John Seach
Mariana Islands
20.13 N, 145.10 E
summit elevation -8 m
submarine volcano
Supply Reef is a submarine volcano is located 17 km NW of the Maug Islands in the northern Marianas.
Submarine eruptions have been detected by sonar 15-25 km NW of Supply Reef.
Supply Reef Eruptions
1989, 1969, 1985?