The Manus Plate is a 100-km microplate located northeast of New Guinea. The Manus Plate was formed in between the North Bismark Plate and the South Bismark Plate. The Manus Plate currently rotates counter-clockwise in the Melanesia area.
https://github.com/davepinch/pinchy.cc/blob/master/content/topics/places/techtonic-plates/manus-plate/en.wikipedia.org.md