The Eastern Gemini Seamount, also known as Oscostar, is a seamount in the southwestern Pacific Ocean, about halfway between Vanuatu's Tanna and Matthew Islands. The only recorded eruption from Eastern Gemini was observed by a passing ship on February 18, 1996 when bursts of very dark water were observed. See also List of volcanoes in French Southern and Antarctic Lands References Volcanoes of Vanuatu Seamounts of the Pacific Ocean Active volcanoes Volcanoes of Oceania Volcanoes of the Pacific Ocean Volcanoes of France