The quake, whose epicenter was 20 miles east of Lae, struck at 9:15 a.m. Sunday, the U.S. Geological survey said.
The National Disaster Center in Guinea in Lae said no buildings collapsed after the quake shook some of them, The Malaysia Star reported.
The Malaysian Meteorological Department said the quake posed no threat of a tsunami.
A 6.5-magnitude quake struck Feb. 1 29 miles under the sea of the west coast of Bougainville Island, Papua New Guinea.
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