Capricorn Seamount

Capricorn Seamount
Summit depth	360 metres (1,180 ft)
Location
Coordinates	18°37.20′S 172°10.64′W / 18.62000°S 172.17733°W / -18.62000; -172.17733[1]

Capricorn Seamount is a seamount in Tonga. It rises 4 kilometres (2.5 mi) to a depth of about 360 m (1,180 ft) and is capped off by a 15 km (9.3 mi) wide summit platform. It appears to be a submerged volcano of Miocene age that may be part of a volcanic chain with Niue. Capricorn Seamount is located on the eastern flank of the Tonga Trench and is in the process of breaking up; in turn the trench has been altered by the interaction with the downgoing seamount.