The Solomon Islands has been struck by a 6.8 magnitude earthquake, the second large one today.
The latest quake, with a depth of 33 kilometres, struck just after 11am local time near the Santa Cruz islands, near the border with Vanuatu.
Another earthquake of the same magnitude struck earlier this morning near Kira Kira at a depth of 37 kilometres.
None of them triggered a tsunami warning.
Today's earthquakes are the latest in a series of large tremors to hit the Melanesia region in recent weeks, none of which have caused any significant damage.