Powerful earthquakes have hit Papua New Guinea and the coast of Indonesia's Sumatra island.
A magnitude 6.9 quake hit Papua New Guinea's New Ireland region at 1145 Universal Time Wednesday. A 6.4 magnitude quake struck off Sumatra about four hours later.
The Hawaii-based Pacific Tsunami Warning Center did not issue any advisories.
Sumatra is still recovering from an 8.4 quake earlier this month that killed more than 20 people.
The quakes hit in the western region of what is known as the Pacific "Ring of Fire" for its seismic and volcanic activity.
In December 2004, a tsunami triggered by an underwater earthquake killed an estimated 230,000 people near Indian Ocean coastlines, including more than 160,000 people in Indonesia.
Some information for this report was provided by AP and Reuters.
