Sunken Rock is a sunken rock lying 0.2 nautical miles (0.4 km) north-northeast of Morgan Island, close off the north side of Heard Island. Surveyed and named by the ANARE (Australian National Antarctic Research Expeditions) in 1948.

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  This article incorporates public domain material from "Sunken Rock". Geographic Names Information System. United States Geological Survey.   

53°1′S 73°34′E / 53.017°S 73.567°E / -53.017; 73.567