Supply Reef

{{Short description|Submerged circular reef of volcanic origin in the Northern Mariana Islands}} {{Infobox Seamount | name = Supply Reef | depth = {{convert|-8|m|ft|0|abbr=on}} | height = | map = | pushpin_map =Northern Mariana Islands#North Pacific | map_caption = | photo = | photo_alt = | photo_caption = | photo_size = | summit_area = | translation = | language = | pronunciation = | location = Northern Mariana Islands | group = | coordinates = {{coord|20|08|N|145|6|E|type:mountain_region:US-MP}} | country = United States | type = Submarine volcano | volcanic_group = | range = | age = | last_activity = | last_eruption = September to December 1989 | discovered = | discovered_by = | first_visit = }}

'''Supply Reef''' is a submerged circular reef of volcanic origin in the Northern Mariana Islands chain, about {{Convert|10|km|mi|0}} NW of the Maug Islands. Presently, this igneous seamount is roughly {{Convert|8|m|ft|0}} below the ocean's surface and about {{Convert|100|m|ft|-2|abbr=on}} in diameter. Apparent episodes of submarine volcanism were noted on December 22–24 and 26–27 in 1989.

Volcanic and seismic activity has been noted, as well as hard and soft corals.<ref>{{Cite web |title=Commonwealth of Northern Mariana Islands (CNMI) and Guam – Pacific Islands Benthic Habitat Mapping Center |url=http://www.soest.hawaii.edu/pibhmc/cms/data-by-location/cnmi-guam/ |access-date=2023-10-21 |language=en-US}}</ref>

[[File:Txu-pclmaps-oclc-22834566 j-14b.jpg|thumb|left|Map including Supply Reef (labeled as 'reef') (DMA, 1983)]]

== References == * {{cite gvp|vn=284142|name=Supply Reef|accessdate=2017-03-03}} {{reflist}}

Category:Geography of the Northern Mariana Islands Category:Volcanoes of the Northern Mariana Islands Category:Submarine volcanoes Category:Reefs of the Pacific Ocean Category:Seamounts of the Pacific Ocean Category:Reefs of the United States Category:Former islands from the last glacial maximum