Kokopo, May 5: A 7.5-magnitude earthquake jolted 139 km south of Kokopo, Papua New Guinea on Tuesday, the US Geological Survey said.
The epicenter, with a depth of 10.0 k.m, was initially determined to be at 5.6 degrees south latitude and 152.1 degrees east longitude.
Today's quake was centered in the same area as two earthquakes that rocked Papua New Guinea last week.
The Pacific Tsunami Warning Center said hazardous tsunami waves were possible within 300 kilometres (186 miles) of the epicentre. There were no immediate reports of waves being seen and no reports of damage