A 6.8-magnitude earthquake struck off the coast of New Caledonia today in the tectonically active Pacific region. <br/><br/>Seismologists said, the tremor hit at a depth of 29 kilometres some 253 kilometres from the capital Noumea and 109 kilometres from Tadine in the lightly populated Loyalty Islands.<br/><br/>The Pacific Tsunami Warning Center said there was no current threat, with experts saying while shaking would have been felt, damage was unlikely.<br/><br/>