A 7.0-magnitude quake has struck off the coast of the Solomon Islands, but experts say the threat of a Pacific tsunami has passed.

The quake struck at a depth of 33 kilometres just before 1:30 this afternoon local time (0228 UTC) 75 kilometres west of Lata and 587 kilometres east of Honiara. No injuries were immediately reported.

While some 550 people live in the town near the epicenter, the preliminary warning issued by the PTWC had covered a much wider region including states from the Solomon Islands and Papua New Guinea to Australia and even New Zealand.

But the Hawaii-based Pacific Tsunami Warning Center, which said its estimate on the quake’s size was 6.9, said that based on all data available “the tsunami threat from this natural disaster has now mostly passed”. The islands lie on the “Ring of Fire” – an arc that stretches around the Pacific rim and where about 90 percent of the world’s quakes occur.

A 7.5-magnitude natural disaster has struck off the coast of the Solomon Islands in the tremor-prone Pacific, the US Geological Survey says.