Supply Reef
Stratovolcano · United States · 8m (submarine)
- Type
- Stratovolcano
- Country
- United States
- Region
- Northwestern Pacific Volcanic Regions / Mariana Volcanic Arc
- Elevation
- 8m (submarine)
- Coordinates
- 20.130, 145.100
- Last eruption
- Unknown
- Tectonic setting
- Subduction zone / Crustal thickness unknown
- Landform
- Composite
- Major rock type
- Andesite / Basaltic Andesite
Geological summary
Supply Reef is a conical submarine volcano in the northern Mariana Islands that rises to within 8 m of the surface. The andesitic seamount lies about 17 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 1,800 m. Supply Reef was mapped as Quaternary; living corals on the crater rim suggest no recent activity (Corwin, 1971). Submarine eruptions previously attributed to this volcano based primarily on acoustic data have been reassigned to Ahyi Seamount, which was unknown at the time of those reports.
From Wikipedia
Supply Reef is a submerged circular reef of volcanic origin in the Northern Mariana Islands chain, about 10 kilometres (6 mi) NW of the Maug Islands. Presently, this igneous seamount is roughly 8 metres (26 ft) below the ocean's surface and about 100 m (300 ft) in diameter. Apparent episodes of submarine volcanism were noted on December 22–24 and 26–27 in 1989.
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Eruption history
Detailed timeline
No eruption records available.
External links
⚠ For reference only. Not for emergency response.