PAPUA NEW GUINEA (HawaiiNewsNow) - A strong earthquake shook an area off the northern coast of the Pacific island nation of Papua New Guinea Sunday. There were no immediate reports of damage or injuries, and no tsunami alert was issued.
The U.S. Geological Survey said the 6.8 magnitude quake occurred at 1:39 p.m. Hawaii time.
Papua New Guinea, about 4,300 miles southwest of Honolulu, lies on the Pacific "Ring of Fire," an arc of earthquake and volcanic zones that stretches around the Pacific Rim and where about 90 percent of the world's quakes occur.
This is the second major earthquake on Sunday. The U.S. Geological Survey says an earthquake with a magnitude of 6.2 struck near Vanuatu at 4:34 a.m. Hawaii time. There were no reports of damage and no tsunami alert was issued.
It has been a busy three days in the Pacific. Saturday there was a 6.4 magnitude near the east coast of Honshu, Japan and on Friday a 6.7 magnitude struck Fiji. None of the earthquakes generated a tsunami.
The Associated Press contributed to this report.