Category
page 1Mariana Islands
Mariana Islands
archipelago in western North Pacific Ocean
German–Spanish Treaty
1899 German–Spanish Treaty
Northwest Rota
mountain in United States of America
Marianas Trench Marine National Monument
US national monument in the Mariana Archipelago
Eifuku Seamount
Eifuku () and NW Eifuku () are two seamounts in the Pacific Ocean. The better known one is NW Eifuku, where an unusual hydrothermal vent called "Champagne" produced droplets of liquid . Both seamounts are located in the Northern Marianas and are volcanoes, part of the Izu-Bonin-Mariana Arc. NW Eifuku rises to depth below sea level and is a wide volcanic cone.