A magnitude 6.6 earthquake has rattled the Pacific island nation of Papua New Guinea, a month after a deadly quake there killed more than 100 people.

A stock photo of a recording of an earthquake's seismic waves

There were no immediate reports of damage or injuries from Monday's quake, which the U.S. Geological Survey said was centered in a remote area of East New Britain province.

USGS reported the quake had a depth of 40 kilometres.

A magnitude 7.5 earthquake on February 26 killed at least 125 people, injured dozens and brought work to a halt at four oil and gas fields.